The invention relates to an electrochemical bundle comprising a plurality of stacks each including a first polarity electrode, a second polarity electrode, a first separator and a second separator. Each first polarity electrode comprises an electrical connection tab.
The invention relates to an electrochemical bundle comprising a plurality of stacks each including a first polarity electrode, a second polarity electrode, a first separator and a second separator. Each first polarity electrode comprises an electrical connection tab.
The electrochemical bundle comprises a first metallic separator interposed between each pair of adjacent electrical connection tabs. The first separator is attached to at least one of said electrical connection tabs.
The invention relates to an electrochemical bundle comprising a plurality of stacks each including a first polarity electrode, a second polarity electrode, a first separator and a second separator. Each first polarity electrode comprises an electrical connection tab.
The electrochemical bundle comprises a first metallic separator interposed between each pair of adjacent electrical connection tabs. The first separator is attached to at least one of said electrical connection tabs.
The first separator extends, between each pair of adjacent electrical connection tabs, between a lower edge and an upper edge.
The invention relates to an electrochemical bundle comprising a plurality of stacks each including a first polarity electrode, a second polarity electrode, a first separator and a second separator. Each first polarity electrode comprises an electrical connection tab.
The electrochemical bundle comprises a first metallic separator interposed between each pair of adjacent electrical connection tabs. The first separator is attached to at least one of said electrical connection tabs.
The first separator extends, between each pair of adjacent electrical connection tabs, between a lower edge and an upper edge.
The upper edges of the first separator are substantially flush with the upper edges of the electrical connection tabs.
H01M 50/474 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their position inside the cells
B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/477 - Spacing elements inside cells other than separators, membranes or diaphragmsManufacturing processes thereof characterised by their shape
The tool comprises: - an electrically insulating shank, - an end piece having a mounting region mounted at a distal end of the insulating shank, the end piece comprising a head (54) intended to grip a connection/disconnection plug (36) of a manual electrical connection/disconnection system configured to be rotated between a configuration in which the battery module is electrically connected, and a configuration in which the battery module is electrically disconnected. The end piece has a transmission joint (56) connecting the mounting region to the head (54).
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/251 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
H01M 50/574 - Devices or arrangements for the interruption of current
H01R 13/703 - Structural association with built-in electrical component with built-in switch operated by engagement or disengagement of coupling parts
H02J 1/00 - Circuit arrangements for dc mains or dc distribution networks
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
3.
CONTAINER FOR ACCOMMODATING BATTERY MODULES, ELECTRICAL POWER STORAGE SYSTEM, AND ASSOCIATED METHOD
The invention relates to a container comprising a floor having at least one through-opening for discharging liquid and a drain (48) arranged in the or in each through-opening, wherein the drain (48) comprises a support (60) attached to the floor, the support (60) defining a liquid discharge duct (72), and a movable member (64) mounted so as to be translatably movable relative to the liquid discharge duct (72) under the effect of the weight of the liquid applied to the movable member (64), between a rest position that blocks the drain (48) and a position for discharging the liquid through the drain (48). The movable member (64) comprises a perforated wall (92) having through-holes (96) for discharging the liquid. The support (60) covers the through-holes (96) in the rest position, wherein at least some of the through-holes (96) are uncovered by the support (60) in the liquid discharge position.
H01M 10/627 - Stationary installations, e.g. power plant buffering or backup power supplies
H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/251 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
Centre national de la recherche scientifique (France)
ECOLE NATIONALE SUPERIEURE D INGENIEURS DE CAEN (France)
UNIVERSITE DE CAEN NORMANDIE (France)
Inventor
Pele, Vincent
Jordy, Christian
Neveu, Audric
Pralong, Valérie
Abstract
The present invention relates to sulfide solid electrolytes having improved conductivity, a process for the preparation thereof, and electrochemical elements and batteries containing same.
The invention relates to an electrochemical element comprising: - at least one positive electrode comprising, as positive active material, at least one lithium phosphate compound of formula LixMn1-y-zFeyMzPO4 with 0.8 ≤ x ≤ 1.2; 0 ≤ 1-y-z < 1; 0 < y ≤ 1; 0 ≤ z ≤ 0.6; and M selected from the group consisting of: B, Mg, Al, Si, Ca, Ti, V, Cr, Co, Ni, Cu, Zn, Y, Zr, Nb, Mo, W, S, K, Pb and mixtures thereof; - at least one negative electrode; - at least one electrolyte comprising at least one additive chosen from: tris(trimethylsilyl) phosphite (TMSP), hexanetricarbonitrile (HTCN) and any mixture thereof.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/0567 - Liquid materials characterised by the additives
H01M 10/0568 - Liquid materials characterised by the solutes
H01M 10/0569 - Liquid materials characterised by the solvents
6.
ELECTROCHEMICAL ELEMENT COMPRISING A POSITIVE ELECTRODE BASED ON LITHIUM MANGANESE IRON PHOSPHATE
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/38 - Selection of substances as active materials, active masses, active liquids of elements or alloys
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/0568 - Liquid materials characterised by the solutes
H01M 10/0569 - Liquid materials characterised by the solvents
H01M 4/02 - Electrodes composed of, or comprising, active material
7.
THERMOPLASTIC VULCANIZATE COMPOSITIONS AS SOLID POLYMER ELECTROLYTES
The present application concerns solid polymer electrolytes (SPEs) comprising thermoplastic vulcanizates (TPVs) and alkali metal salts, their process of preparation and the electrochemical cells comprising such electrolytes.
The present application relates to an insulating film obtained by dry processing, to a method for obtaining same and to the use thereof to coat electrode tabs, in particular positive electrode tabs for Li-ion batteries.
An electrochemical cell including a container including an electrochemical spiral bundle including: a positive electrode including an active material selected from among SOCl2, SO2, SO2Cl; CFx where x≤1.5; MnO2, FeS2, V2O5, I2, Bi2O3, Bi2Pb2O5, CuCl2, CuF2, CuO, Cu4O(PO4)2, CuS, FeS, MoO3, Ni3S2, AgCl, Ag2CrO4, SVO, MO6S8, and a mixture of a plurality thereof; a separator; and a negative electrode including an active material made of lithium metal or of a lithium-based alloy. The outer face of the spiral, facing the container, is formed by the positive electrode, and a strip of lithium or of a lithium-based alloy at least partially covers the inner face of the container. The strip pressed against the inner face of the container makes it possible to make use of an outer face of the positive electrode which forms the last turn of the spirally-wound electrode plate group.
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
10.
METHOD FOR CONTROLLING BATTERY CHARGING IN A SINGLE-PHASE CURRENT ELECTRICAL SYSTEM FOR GENERATING A DC VOLTAGE IN A PARALLEL MODE
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
SAFT (France)
SORBONNE UNIVERSITE (France)
UNIVERSITE PARIS-SACLAY (France)
Inventor
Roy, Francis
Oswald, Dominique
Laboure, Eric
Marchand, Claude
Peuchant, Thomas
Herpe, David
Lahlou, Anas
Abstract
The present invention relates to a polyphase electrical system comprising a battery with a multilevel inverter distributed in the battery and comprising three current lines (LT1, LT2, LT3) and a diode module, wherein, during an operation for charging the battery with single-phase alternating current, the diode module powers a DC bus from two lines only from among the three lines (LT1, LT2, LT3), and wherein the voltages of each of the three lines (LT1, LT2, LT3) are controlled so as to generate a first DC voltage from the composition of the voltages of the two lines (LT2, LT3; LT2, LT1) and simultaneously generate a single-phase AC voltage (Vac) from the three lines (LT1, LT2, LT3) on the phase branch (BP1) in order to charge the battery (BAT). The invention further relates to a method for controlling the electrical system. The invention is applicable to electrified motor vehicles and to stationary storage systems.
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
SAFT (France)
SORBONNE UNIVERSITE (France)
UNIVERSITE PARIS-SACLAY (France)
Inventor
Roy, Francis
Oswald, Dominique
Peuchant, Thomas
Herpe, David
Lahlou, Anas
Marchand, Claude
Laboure, Eric
Abstract
The present invention relates to a method for controlling a polyphase electrical system comprising a battery with a distributed multilevel inverter, the method comprising at least one charging configuration of the battery (BAT) comprising the following simultaneously controlled steps of generating a first DC voltage at the output of a diode module (RD) from one current line (LT1) among the three lines (LT1, LT2, LT3) during which the elementary modules (MCLk) of the line (LT1) are controlled as a function of a first reference setpoint, and charging with AC voltage the cells (CLk) of the elementary modules (MCLk) of the two other current lines (LT2, LT3) among the three lines (LT1, LT2, LT3) during which the elementary modules (MCLk) of the two other lines (LT2, LT3) are controlled as a function of a second reference setpoint synchronised with an AC voltage of an extended power supply network (RES). The invention applies to electrified vehicles and to stationary storage systems.
The present invention relates to an aqueous formulation of electrode active materials, the coated strip-based electrodes comprising the composition of active materials and the electrochemical elements that comprise same. The invention also relates to a method for preparing an electrode comprising the composition of active materials, the method for preparing the ink not using, as a solvent, substances identified as substances of very high concern appearing in the candidate list provided in Article 59 of Regulation (EC) No. 1907/2006 (REACH), or substances subject to restrictions appearing in the list provided in Annex XVII of Regulation (EC) No. 1907/2006.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
C01B 25/45 - Phosphates containing plural metal, or metal and ammonium
14.
CONNECTION PART FOR AN ELECTROCHEMICAL CELL HAVING A PRISMATIC SHAPE
An electrochemical cell includes a container having a bottom and containing an assembly of parallelepipedal plates consisting of one or more positive plates including positive tabs and negative plates including negative tabs, separated by a separator; one or more covers closing an opening of the container; an electrical connection part of a given polarity connecting a tab of the same polarity to a current output terminal of the cell of the same polarity, fixed to a cover; an electrical connection part of opposite polarity connecting a tab of opposite polarity to a current output terminal of opposite polarity, which is fixed to, and electrically insulated from, the cover, the bottom of the container, or a second cover electrically insulated from the first cover; the connection parts each comprising a support plate having a projecting element for connecting a given polarity tab to the current output terminal of corresponding polarity.
This module comprises a stack, comprising: * a plurality of electrochemical cells (18); * at least one intermediate part (20) interposed between each pair of adjacent cells (18); * a mechanism for holding the stack clamping the cells (18) and the intermediate parts (20) against one another. The module comprises at least one dielectric liquid for cooling the stack. The intermediate part (20) defines at least one open channel (82A, 82B) for flow of the dielectric liquid. The channel (82A, 82B) opens onto the periphery of the stack in order to allow the dielectric liquid to flow through the stack and opens facing a main face (74, 76) of at least one cell (18), which face is applied against the intermediate part (20), in order to place the main face (74, 76) in contact with the dielectric liquid.
H01M 10/6568 - Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
16.
ELECTROCHEMICAL ASSEMBLY, CORRESPONDING ELECTROCHEMICAL CELL, BATTERY AND METHOD OF MANUFACTURING
This electrochemical assembly comprises a first electrochemical stack, having first stack electrodes of a first polarity and first stack electrodes of a second polarity. The first stack electrodes of the first polarity comprise first terminal tabs of the first polarity and forming a first electric terminal tab stack.
This electrochemical assembly comprises a first electrochemical stack, having first stack electrodes of a first polarity and first stack electrodes of a second polarity. The first stack electrodes of the first polarity comprise first terminal tabs of the first polarity and forming a first electric terminal tab stack.
The electrochemical assembly comprises a second electrochemical stack, having second stack electrodes of the first polarity and second stack electrodes of the second polarity. The second stack electrodes of the first polarity comprise second terminal tabs of the first polarity and forming a second electric terminal tab stack.
This electrochemical assembly comprises a first electrochemical stack, having first stack electrodes of a first polarity and first stack electrodes of a second polarity. The first stack electrodes of the first polarity comprise first terminal tabs of the first polarity and forming a first electric terminal tab stack.
The electrochemical assembly comprises a second electrochemical stack, having second stack electrodes of the first polarity and second stack electrodes of the second polarity. The second stack electrodes of the first polarity comprise second terminal tabs of the first polarity and forming a second electric terminal tab stack.
The electrochemical assembly comprises a first terminal comprising a terminal portion and a tab connection portion. The first electric terminal tab stack overlaps the second electric terminal tab stack and is electrically connected to the tab connection portion of the first terminal via the second electric terminal tab stack.
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 10/0583 - Construction or manufacture of accumulators with folded construction elements except wound ones, i.e. folded positive or negative electrodes or separators, e.g. with ‘’Z’’-shaped electrodes or separators
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
H01M 50/15 - Lids or covers characterised by their shape for prismatic or rectangular cells
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
17.
POSITIVE ELECTRODE FOR LITHIUM-ION ELECTROCHEMICAL ELEMENT
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 4/02 - Electrodes composed of, or comprising, active material
18.
METHOD FOR ESTIMATING THE STATE OF CHARGE OF AN ELECTROCHEMICAL ELEMENT AND ASSOCIATED DEVICES
The invention relates to a method for detecting the state of charge of an electrochemical element, the method comprising the steps of:
obtaining the voltage, current, temperature and capacity of the electrochemical element,
computing the state of charge of the electrochemical element using two techniques:
a first technique giving the value of the first model applied to the aforementioned values and corrected by the correction function, the first model being a neural network, the correction function giving for each value of the state of charge the statistical estimation error of the first model; and
a coulometric second technique,
determining the most reliable technique depending on a reliability criterion of the corrected first model, and
the value computed using the determined technique being the estimated value of the state of charge.
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
19.
PULSED FAST-CHARGING METHOD WITH REGULATED-AMPLITUDE VOLTAGE INCREMENTS
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
INSTITUT POLYTECHNIQUE DE GRENOBLE (France)
SAFT (France)
UNIVERSITE GRENOBLE ALPES (France)
UNIVERSITE SAVOIE MONT BLANC (France)
Inventor
Roy, Francis
Mermaz Rollet, Guillaume
Peuchant, Thomas
Khatokar Amarnath, Rakesh
Lahlou, Anas
Herpe, David
Thivel, Pierre Xavier
Leprêtre, Jean Claude
Bultel, Yann
Abstract
The present invention relates to a method for carrying out pulsed charging of an energy storage element (4) comprising, in a first phase of a charging cycle (E1), commanding a voltage profile (VC) having voltage regulation-driven increments (S1, S2, S3, S4, S5) defining a current profile (IC) in a charging cycle of a predetermined duration, and wherein a voltage increment (S1, S2, S3, S4, S5) is computed at a voltage amplitude at the time of a calculation step i according to a function depending on an estimate of the no-load voltage and on an estimate of the internal resistance at said time, on a coefficient n defining the charging duration and on the nominal capacity of the storage element. The invention is applicable to the fast-charging protocol, in particular for electromobility applications.
The present application relates to fluoropolymer-based, solvent-free electrode formulations obtained by extrusion and/or comprising one or more co-binders including TPU, to electrodes containing the same and to corresponding electrochemical elements and storage cells.
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
21.
CONNECTION PART INTENDED FOR ELECTRICALLY CONNECTING A FIRST METAL SURFACE TO A SECOND METAL SURFACE IN AN ELECTROCHEMICAL GENERATOR, ASSOCIATED GENERATOR AND ASSOCIATED METHOD
The part (12) comprises a metal body having a first part (30) for being electrically connected to the first metal surface and a second part (32) for being electrically connected to the second metal surface. At least one of the first electrical connection part (30) and the second electrical connection part (32) has an attachment face (38) intended to be welded to the first metal surface or to the second metal surface, respectively, and an opposite face (42) for applying a welding power, the opposite face (42) for applying a welding power having a rough region (44), the rough region (44) having a roughness Ra greater than 10 micrometres according to standard NF EN ISO 21920-3.
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
H01M 50/534 - Electrode connections inside a battery casing characterised by the material of the leads or tabs
H01M 50/179 - Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for cells having curved cross-section, e.g. round or elliptic
22.
ELECTROCHEMICAL ELEMENT FOR A BATTERY, AND CORRESPONDING BATTERY
The present electrochemical element for a battery comprises a first electrode of a first polarity, a first connection member for the first polarity, a second electrode of a second polarity, a second connection member for the second polarity, and a casing comprising a first wall and a second wall. The casing comprises a first edge and a second edge which form an enveloping geometric shape having a corner.
The present electrochemical element for a battery comprises a first electrode of a first polarity, a first connection member for the first polarity, a second electrode of a second polarity, a second connection member for the second polarity, and a casing comprising a first wall and a second wall. The casing comprises a first edge and a second edge which form an enveloping geometric shape having a corner.
The first connection member and the second connection member are arranged completely within the enveloping geometric shape. The first connection member and the second connection member are arranged in a first corner of the enveloping geometric shape.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
SAFT (France)
SORBONNE UNIVERSITE (France)
UNIVERSITE PARIS-SACLAY (France)
Inventor
Roy, Francis
Peuchant, Thomas
Herpe, David
Laboure, Eric
Fiani, Philippe
Abstract
The present invention relates to a battery system comprising a distributed multilevel inverter in elementary modules of cells of the battery, allowing the generation of an alternating voltage waveform on a current line of the battery and bidirectional operation on a power supply network. According to the invention, the battery control unit comprises a means (20) for determining electrical characteristics of an alternating voltage waveform of the supply network (RES), a means (21) for synchronising the electrical characteristics of an alternating voltage waveform of the current line (LT1, LT2, LT3) of the battery system (BAT) with the power supply network waveform (RES), an electrical connection means (Kres) for connecting the current line (LT1, LT2, LT3) to the supply network (RES), controlled based on the synchronisation state (STE) of the voltage waveforms of the battery system (BAT) and the network (RES), and a means for regulating the current (22) of the battery system (BAT) by controlling a voltage setpoint (Vref) of the current line of the battery system (BAT).
The invention relates to a method for predicting the remaining life of an electrochemical cell having a SOC-OCV characteristic with a planar portion extending between two limits, said method comprising the steps of obtaining voltage and current measurements from the electrochemical cell during a discharge, detecting a limit; calculating the values at the voltage limit detected and the amount of charge lost; predicting the resistance and capacitance of the electrochemical cell by applying respective predictive functions obtained by a learning technique to the voltage and the amount of charge lost at the limit detected; and predicting the remaining life of the electrochemical cell from the predicted resistance and predicted capacitance.
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
G01R 31/389 - Measuring internal impedance, internal conductance or related variables
G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
25.
METHOD FOR ESTIMATING THE SELF-DISCHARGE OF AN ELECTROCHEMICAL ELEMENT OF A BATTERY, AND ASSOCIATED METHODS AND DEVICES
The present invention relates to a method for estimating the self-discharge of an electrochemical element to which a balancing current is applied, the method comprising the steps of: - obtaining: - the capacity of the electrochemical element; - first measurement values comprising measurements of the current and of the balancing current applied at first times; and - second measurement values comprising measurements of the state of charge at second times; - estimating the value of the self-discharge at a second estimation time by applying an estimation function to the obtained values, the estimation function calculating a first contribution corresponding to the variation in the state of charge and a second contribution corresponding to the charge buildup related to the first values.
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
G01R 31/385 - Arrangements for measuring battery or accumulator variables
G01R 31/396 - Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
26.
METHOD FOR DETERMINING THE SERVICE LIFE OF AN ELECTROCHEMICAL CELL OF A BATTERY IN REAL TIME
The present invention relates to a method for determining the lifetime of an electrochemical element of a battery in real time as a function of a determined application, applicable in the field of primary type batteries. The method comprises: —a step (1) of measuring at least one intensity value (I) of the current provided by the electrochemical element and of measuring at least one temperature value (T) of the electrochemical element in the determined application; —a step (4) of computing total lifetime allowing the availability time of the electrochemical element to be computed on the basis of a determined initial time, as a function of the one or more current intensity value(s) (I) and of the one or more temperature values (T) measured during the measuring step (1), as a function of a determined value of the capacity of the electrochemical element, of the cut-off voltage of the determined application, and of the background current of the determined application.
G01R 31/387 - Determining ampere-hour charge capacity or SoC
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/374 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] with means for correcting the measurement for temperature or ageing
G01R 31/378 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
27.
NEW SOLVENT-FREE PREPARATION METHOD FOR CATHOLYTES AND SOLID ELECTROLYTE LAYERS
The present application relates to solvent-free formulations based on sulfide solid electrolyte and fluoropolymer, suitable for solid electrolyte layers or an electrode layer for all-solid-state batteries.
The present application relates to the use of fluorinated additive for preparing a silicon-based negative electrode, as well as to the corresponding electrodes and to Li-ion electrochemical elements comprising same.
A compound of formula LixMn2-y-zNiyMO4-d-cFc (LMNO) where M is one or more elements chosen from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Co, Cu, Zn, Y, Zr, Nb, Ru, W and Mo; and 1≤x≤1.4; 0
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
30.
DEVICE FOR CREATING A DC VOLTAGE BUS FOR A POLYPHASE ELECTRICAL SYSTEM, MOTOR VEHICLE AND RENEWABLE ENERGY GENERATOR COMPRISING SUCH A DEVICE
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
SAFT (France)
SORBONNE UNIVERSITE (France)
UNIVERSITE PARIS-SACLAY (France)
Inventor
Roy, Francis
Peuchant, Thomas
Herpe, David
Laboure, Eric
Castejon, Franck
Abstract
The invention relates to a device forming a DC voltage bus for a polyphase electrical system (M), comprising voltage legs (A1, A2, A3) each having a plurality of battery cell modules (C1, C2, C3), each module comprising a battery cell or a cluster of battery cells (c1), connected to a DC-to-AC converter (DCAC); said battery cell modules (C1, C2, C3) being connected together in series via the DC-to-AC converter (DCAC); said voltage legs (A1, A2, A3) each being connected to a specific phase leg (B1, B2, B3) for said polyphase electrical system (M), at least one phase leg (B1, B2, B3) having a branch (D1, D2, D3) connected to a rectifier module (R1). The invention also relates to a motor vehicle, a renewable energy generator and a method based on such a system.
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
31.
A LITHIUM SECONDARY ELECTROCHEMICAL CELL FOR AVIATION APPLICATIONS
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
The invention relates to a mixture comprising: —more than 50 to 99% by weight of a lithium phosphate of manganese and iron—1 to less than 50% by weight of at least one lithium oxide of nickel, manganese and cobalt or at least one lithium oxide of nickel, cobalt and aluminium, or of a mixture of these two oxides, these two lithium oxides being rich in nickel. This mixture can be used as active material of the cathode of a lithium-ion electrochemical element. The charging profile of the element has a plateau indicating the end of charging.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
33.
NEGATIVE ELECTRODE COMPRISING AN ELECTROCHEMICALLY ACTIVE ZINC MATERIAL
A paste electrode comprising a current collector support, which is coated on at least one of its faces with a coating composed of a composition comprising an active material comprising an alloy of zinc with one or more chemical elements, and one or more binders. This electrode may be used as an anode of an electrochemical cell comprising alkaline electrolyte. The coating contains at most 0.5% by mass of mercury or mercury compound. The electrode in spite of this presents effective resistance to corrosion by the electrolyte.
The present invention relates to an active material for positive electrode, suitable for solid-state lithium sulfide electrochemical elements, comprising an ionically conductive and electronically conductive electrolyte, and to electrochemical elements comprising same.
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/133 - Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/587 - Carbonaceous material, e.g. graphite-intercalation compounds or CFx for inserting or intercalating light metals
An electrode comprising: - a foil (C) made of aluminum or aluminum alloy, the foil either being covered at least partially on one or both faces by a coating intended to improve the electron conductivity between a coated layer and the foil and/or to improve the adhesion of a coated layer to the foil, or having been subjected to a surface treatment aimed at increasing the adhesion and/or the contact area of the coated layer with respect to the foil, - at least two superposed layers (L1, L2), each layer comprising a first active material (MA1) which is a lithiated phosphate of one or more transition metals and at least a second active material (MA2), characterized in that, in a layer in question, the weight proportion of the lithiated phosphate relative to all the active material weights of this layer is greater than the weight proportion of lithiated phosphate in the adjacent layer further away from the foil than the layer in question.
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
This electrical energy storage assembly (2) comprises an electric battery module (20) and a support structure (4) for the electric battery module. The support structure is provided with a fluid cooling circuit (36) for cooling the electric battery module (20). The cooling circuit comprises a cooling plate (38). The support structure delimits a receiving housing (30). The cooling circuit (36) is either in an assembled state or in a disassembled state. The receiving housing has a housing lower side (32). The housing lower side (32) is delimited by the cooling plate. The receiving housing (30), the electric battery module (20) and the cooling circuit (36) are configured such that the electric battery module can be inserted and/or removed from its receiving housing (30) while the cooling circuit is in the assembled state.
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
UNIVERSITÉ SAVOIE MONT BLANC (France)
Inventor
Pavlenko, Ekaterina
Jordy, Christian
Bouchet, Renaud
Mangani, Léa
Isaac, James
Devaux, Didier
Abstract
The present application relates to ceramic/polymer hybrid solid electrolytes with improved interfacial strength, comprising a surface-dehydrated pre-treated ceramic.
The invention relates to a container (12) which comprises a system (31) for diffusing cooled air to each battery module (16), the diffusion system (31) comprising a device for generating cooled air. The cooled air diffusion system (31) comprises at least two horizontal tubes (62) for conveying cooled air to the battery modules (16) delimiting therebetween an intermediate space (64), each horizontal tube (62) having a plurality of cooled air diffusion openings (80) intended to open facing successive battery modules (16) placed along the horizontal tubes (62). The cooled air diffusion system (31) comprises at least one vertical plenum (66) connected to the cooled air generating device (60) and to the horizontal tubes (62) for distributing the cooled air in the horizontal tubes (62).
H01M 50/207 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
39.
ELECTRICAL ENERGY STORAGE MODULE HAVING INTEGRATED POWER CONVERSION MEANS, AND ELECTRICAL ENERGY STORE INCORPORATING SAME
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
CONSERVATOIRE NATIONAL DES ARTS ET METIERS (France)
CY CERGY PARIS UNIVERSITE (France)
SAFT (France)
SORBONNE UNIVERSITE (France)
UNIVERSITE PARIS-SACLAY (France)
ÉCOLE NORMALE SUPÉRIEURE PARIS-SACLAY (France)
Inventor
Roy, Francis
Boulay, Marc
Peuchant, Thomas
Narbonne, Alexandre
Herpe, David
Labrousse, Denis
Laboure, Eric
Abstract
The invention relates to an electrical energy storage module (M1-ln) which comprises a plurality of elementary storage cells (C1 to C12). According to the invention, the module comprises at least one cell unit (U1-1, U1-2) including a plurality of elementary storage cells connected in series (C1 to C6; C7 to C12) and integrated power-switching means (P1, S1; P2, S2) dedicated to this cell unit, delivering, between two power output terminals (B1, B2) of the cell unit, a positive DC voltage, a negative DC voltage, a zero voltage or a high impedance state, depending on a command received by the cell unit.
A disconnection device, in particular for disconnecting two electrically connected electrochemical elements. The present invention also relates to a device for short-circuiting two electrodes of opposite polarity in an electrochemical element. The subject matter of the invention includes an assembly comprising: ⋅ a) a connecting part (3) and ⋅ b) a disconnection device (4), the disconnection device being intended to disconnect two electrochemical elements (1, 2) connected by the connecting part (3), the disconnection device (4) comprising: ⋅ i) microparticles (5) capable of expanding when their temperature reaches a threshold value, the threshold value being below 150° C., ⋅ ii) a capsule (4a, 4b) enclosing all of the microparticles (5), the capsule (4a, 4b) being arranged such that when the temperature of the microparticles (5) reaches the threshold value, the expansion of the microparticles disconnects the connection between the two electrochemical elements (1, 2).
H01M 50/581 - Devices or arrangements for the interruption of current in response to temperature
H01M 50/521 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the material
41.
BATTERY MODULE CONTAINER WITH A PROTECTIVE STEP, ELECTRICAL POWER STORAGE SYSTEM AND ASSOCIATED METHOD
The invention relates to a battery module container (16) having a structure (30) which comprises: - a floor support member (34) with two longitudinal members (60) and crossmembers (64) connecting same, each longitudinal member having an upper face (62); - a floor (32) having an upper surface (43) for supporting the modules extending up to side edges (45) opposite the longitudinal members; - peripheral walls, at least one of which defines a door (92A) movable between a closed position in which a lower edge (104) faces the upper face and an open position; and - a roof above the peripheral walls. Along the lower edge of the door in the closed position, the side edge of the upper surface extends at a height above that of the upper face, the floor support member defining a step (84) between the upper face and the upper surface, defining a space (108) for receiving water.
E04H 1/12 - Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
E04H 5/02 - Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 50/251 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
H01M 50/271 - Lids or covers for the racks or secondary casings
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
42.
LITHIUM ELECTROCHEMICAL ELEMENT COMPRISING A POSITIVE ELECTRODE BASED ON A LITHIUM MANGANESE IRON PHOSPHATE
The invention relates to an electrochemical element comprising: - a negative electrode comprising an active material; - a positive electrode comprising an active material comprising a lithium manganese iron phosphate; - a gel electrolyte comprising a matrix which is a polymer obtained by crosslinking a monomer comprising at least two acrylate groups, whereby a liquid mixture comprising at least one solvent, at least one lithium salt and a free-radical polymerisation thermal initiator is incorporated therein.
The container (12) has a structure (30) for receiving the battery modules (16), comprising upper corner pieces (70) mounted on the upper corners of peripheral walls (36) of the structure (30), the structure (30) also having a roof (40) extending between the upper corners. The roof (40) has a water evacuation region (80), comprising at least two inclined faces (82A to 82D) between a lower edge and at least one upper point (86) common to the two inclined faces (82A to 82D), in order to allow water received on each of the inclined faces (82A to 82D) to flow towards the lower edge thereof. The water evacuation region (80) is situated in or below a plane (P) defined by the upper surfaces (72) of the upper corner pieces (70).
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
H01M 50/251 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for stationary devices, e.g. power plant buffering or backup power supplies
H01M 50/271 - Lids or covers for the racks or secondary casings
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
H01M 50/30 - Arrangements for facilitating escape of gases
B65D 88/12 - Large containers rigid specially adapted for transport
E04H 1/12 - Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
E04H 5/02 - Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
44.
LITHIUM MANGANESE IRON PHOSPHATE-BASED ELECTRODE FOR AN ELECTROCHEMICAL LITHIUM ION CELL
The present invention relates to an electrode comprising a current collector formed by a metal strip which is coated on at least one of the faces thereof with a composition of electrochemically active materials, the composition comprising at least one lithium manganese iron phosphate having the following formula: LixMn1-y-zFeyMzPO4, where M is selected from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Co, Ni, Cu, Zn, Y, Zr, Nb and Mo, alone or in a mixture, with 0.8≤x≤1.2; 0.5≤1-y-z<1; 0.05≤y≤0.5 and 0≤z≤0.2; the current collector having undergone chemical pickling of at least one of the faces thereof.
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
The present invention relates to a device for inerting a battery comprising a first terminal and a second terminal, the first terminal and the second terminal presenting opposite polarity, the inerting device comprising a connection circuit, the connection circuit connecting the battery to at least one charging circuit, the connection circuit comprising a first connector, a second connector and a switching unit, the switching unit being able to switch between a first position in which the first connector is connected to the first terminal and a second position in which the first connector is connected to the second terminal.
The invention relates to an assembly (2) which comprises a primary electrochemical element (4), a rechargeable electrical element (6) electrically connected in parallel with the primary electrochemical element, and an element (14) for holding the primary electrochemical element and the rechargeable electrical element relative to each other. The holding element holds the primary electrochemical element and the rechargeable electrical element in a predefined spatial configuration relative to each other. The holding element comprises positioning surfaces defining the predefined spatial configuration. The positioning surfaces comprise first positioning surfaces (30), which are positioning surfaces of the primary electrochemical element, and second positioning surfaces (32), which are positioning surfaces of the rechargeable electrical element. The first and second positioning surfaces (30, 32) define the predefined spatial configuration in the presence and absence of contact of the primary electrochemical element and the rechargeable electrical element with these positioning surfaces.
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
H01M 50/247 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for portable devices, e.g. mobile phones, computers, hand tools or pacemakers
H01M 50/267 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders having means for adapting to batteries or cells of different types or different sizes
H01M 50/289 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs
H01M 50/291 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
47.
FLUORINATED ELECTROLYTE COMPOSITION FOR AN ELECTROCHEMICAL CELL HAVING A LITHIUM OR LITHIUM ALLOY ANODE
The invention relates to an electrochemical cell comprising: —at least one anode comprising metallic lithium or a lithium alloy or at least one anode comprising a current collector at least partially covered with metallic lithium deposited after at least one charge of the cell, the cell not containing metallic lithium at the time of its manufacture, —at least one cathode, - a liquid or gelled electrolyte composition comprising: a) a solvent comprising: i) either a mixture of 1,1,1,3,3,3-hexafluoro-2-methoxypropane (HFMP) and/or 1,1,1,3,3,3-hexafluoro-2-(fluoromethoxy)propane (HFMFP), ethylene monofluorocarbonate (F1EC) and 2,2,2-trifluoroethyl methyl carbonate (F3EMC), ii) or a mixture of 1,1,1,3,3,3-hexafluoro-2-methoxypropane (HFMP) and/or 1,1,1,3,3,3-hexafluo-ro-2-(fluoromethoxy)propane (HFMFP), ethylene monofluorocarbonate (F1EC) and 2,2,2-trifluoroethyl acetate (F3EA), b) at least one salt whose cation is the lithium cation, c) lithium difluorophosphate LiPO2F2 in an amount representing from 0.05 to 5% of the mass of the combination made up of the solvent and said at least one dissolved lithium salt.
The invention relates to a method for securing the operation of an industrial system comprising pieces of equipment, the process comprising a phase of obtaining a digital certificate authorizing an operator to access a piece of equipment in order to carry out an action, a phase of attempting to access a piece of equipment in order to carry out an action on the piece of equipment, the attempt phase comprising, in particular, a step of authorizing access to the piece of equipment in order to carry out an action when a compliance requirement relating to the digital certificate is met or refusing access when the compliance requirement is not met.
H04L 9/32 - Arrangements for secret or secure communicationsNetwork security protocols including means for verifying the identity or authority of a user of the system
49.
POSITIVE ACTIVE MATERIAL FOR LITHIUM-ION ELECTROCHEMICAL ELEMENT
1+xab2-yyy having a crystalline structure in which the anions O and F form a first face-centred cubic lattice, the cations A, M and M' form a second face-centred cubic lattice, and in which at least 50% of the cations are disorganised within the second lattice by not being distributed in parallel leaflets, wherein: - A is Li or Na; - 0 < x ≤ 0.33; - a > 0; - b ≥ 0; - a + b ≤ 1 – x; - 0 ≤ y ≤ 0.67. M represents one or more elements selected from V, Cr, Mn, Fe, Co, Ni, Cu and Ru; M' represents one or more elements selected from Ti, Zr, Nb, Mo, Ta, W, Sn, Si, Al and Zn; the compound being coated with carbon. The presence of the carbon coating facilitates the spreading of the composition over a current collector.
C01G 45/12 - Complex oxides containing manganese and at least one other metal element
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/1315 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx containing halogen atoms, e.g. LiCoOxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
A battery (1) is disclosed that comprises: - at least two electrochemical elements (2-1, 2-2) of parallelepipedal format, - a first layer (3-1) of a refractory material resistant to a temperature up to 1200°C placed in contact with the entirety of a first face that is one of the faces (4) of largest area of one (2-1) of the electrochemical elements, said first layer comprising a central region (C) having as centre the centre of the first layer and having an area representing from 30 to 60% of the area of said first face; - a rigid spacer (5) having a hardness higher than or equal to 90 Shore A according to standard ASTM D 2240-15(2021), placed between said first layer and the second electrochemical element (2-2), the rigid spacer being located outside of the central region of said first layer.
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/291 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
H01M 50/293 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
H01M 10/04 - Construction or manufacture in general
51.
METHOD FOR ESTIMATING THE STATE OF CHARGE OF AN ELECTROCHEMICAL ELEMENT AND ASSOCIATED DEVICES
The present invention relates to a method for estimating the state of charge of at least one electrochemical element of a battery, the method being implemented by a computer, the computer storing a state-of-charge estimation model that estimates the value of the state of charge of the at least one electrochemical element based on a voltage value, a current value, a temperature value and a capacity value of the at least one electrochemical element, the state-of-charge estimation model being a trained neural network.
G01R 31/3842 - Arrangements for monitoring battery or accumulator variables, e.g. SoC combining voltage and current measurements
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
A method for treating a surface of a strip or film, the strip or film being made of lithium or a lithium-based alloy, the method comprising a step of radiating at least one portion of the surface of the strip or film with a laser beam, the radiating step being carried out in a controlled atmosphere, the laser beam radiating the entire area of the at least one portion of the surface of the strip or film.
The present invention provides a mixed porous negative electrode comprising graphite and solid electrolyte particles, the structure and composition of which make it possible to increase the amount and quality of the lithium deposition while avoiding large variations in thickness.
The invention relates to a gripping device (1), comprising: - a rod (2) provided with a first stop (3) and a second stop (4), - a polymer sleeve (5) through which the rod passes and which has a first end (6) and a second end (7), the first end (6) being in contact with the first stop; - a first pressure part (8) configured to apply a pressure to the second end (7) of the sleeve (5); - a spring (9) through which the rod passes and which is arranged between the first pressure part (8) and the second stop (4); and - a means (10) for compressing the spring, wherein action on the means for compressing the spring leads, via the first pressure part (8), to a shrinkage in the length of the sleeve in the axial direction and to an expansion of the sleeve in the radial direction.
B66C 1/10 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means
B66C 1/66 - Load-engaging elements or devices attached to lifting, lowering, or hauling gear of cranes, or adapted for connection therewith for transmitting forces to articles or groups of articles by mechanical means comprising article-engaging members of a shape complementary to that of the articles to be handled for engaging holes, recesses, or abutments on articles specially provided for facilitating handling thereof
B65G 47/90 - Devices for picking-up and depositing articles or materials
55.
MODULE FOR ASSEMBLY OF ELECTROCHEMICAL CELLS, CORRESPONDING ELECTROCHEMICAL ASSEMBLY, METHOD FOR MANUFACTURING A SUPPORT ELEMENT AND METHOD FOR ASSEMBLING A MODULE
The invention relates to an electrochemical module (4) for an assembly (2) of electrochemical cells (10), said electrochemical module delimiting electrochemical cell housings (30). The electrochemical module comprises one electrochemical cell (10) for each electrochemical cell housing (30) and one of the electrochemical cells is arranged in each electrochemical cell housing. Each electrochemical cell comprises a side surface. The electrochemical module comprises two elements (36) for supporting the electrochemical cells. Each electrochemical cell (10) is supported by two support elements (36). Each electrochemical cell housing (30) is partially delimited by two adjacent support elements. The support elements are in contact with the side surface of at least one electrochemical cell. The support elements (36) are made of an aluminium-based material, in particular aluminium or an aluminium alloy.
H01M 10/6555 - Rods or plates arranged between the cells
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
H01M 50/291 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
H01M 50/293 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by spacing elements or positioning means within frames, racks or packs characterised by the material
The electrode comprises:
a support defining a first lateral edge and an upper edge extending from the first lateral edge;
a layer containing an active substance covering the support; and
an electrical-connection tab devoid of the layer containing the active substance, the tab projecting from the upper edge in the vicinity of the first lateral edge;
The electrode comprises:
a support defining a first lateral edge and an upper edge extending from the first lateral edge;
a layer containing an active substance covering the support; and
an electrical-connection tab devoid of the layer containing the active substance, the tab projecting from the upper edge in the vicinity of the first lateral edge;
The electrode defines, in the vicinity of a second lateral edge of the support, a cutout extending, set back from the upper edge, in the continuation of the upper edge, towards the second lateral edge.
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/131 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
57.
CONNECTION ELEMENT FOR CONNECTING TWO ACCUMULATORS
A connection element for electrically, and mechanically connecting in a direction of connection, a first terminal of a first accumulator to a second terminal of a second accumulator, the first terminal and the second terminal protruding in a thickness direction, the connection element comprising a metal body having a first wing suitable for being welded onto the first terminal, a central part, and a second wing suitable for being welded onto the second terminal, the central part having a U-shape or a V-shape, the first wing and the second wing extending along the legs of the “U” or the “V”, respectively, the connection element being less prominent than, or at the same level in the thickness direction as at least one of the first terminal and of the second terminal.
H01M 50/516 - Methods for interconnecting adjacent batteries or cells by welding, soldering or brazing
H01M 50/528 - Fixed electrical connections, i.e. not intended for disconnection
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/503 - Interconnectors for connecting terminals of adjacent batteriesInterconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
58.
SURFACE-TREATED ELECTRODE, PROTECTION OF SOLID ELECTROLYTES, AND ELEMENTS, MODULES AND BATTERIES COMPRISING SAID ELECTRODE
The present invention relates to an electrode covered, on all or part of its surface thereof, with a coating layer made of an electronically insulating and ionically conductive as well as the method for preparing said electrode. The present invention also relates to the protection of sulfur electrolytes in order to improve their stability with regard to moisture, in particular by means of a layer comprising an ionically conductive inorganic material comprising a halogen-type anion.
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
The present invention relates to a battery (12) comprising a casing (72), the casing (72) defining an interior space (74), the battery (12) comprising a set of internal elements, the internal elements being inserted into the interior space (74), the set of internal elements comprising: - at least one electrochemical element (18), - a system (34) for managing the at least one electrochemical element (18), and - a circuit (36) for maintaining the at least one electrochemical element (18), the maintaining circuit (36) being able to obtain a measurement of a parameter relative to the state of health of the at least one electrochemical element (18).
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/569 - Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing terminals
H01M 50/583 - Devices or arrangements for the interruption of current in response to current, e.g. fuses
The invention relates to a connecting piece (1) for assembling two battery modules (2-1, 2-2), said connecting piece comprising: - a first portion (3) able to be inserted into a notch (4-1) of a first holding element (5-1) of a first plurality of electrochemical elements (6-1) forming part of a first battery module (2-1), and - a second portion (7) able to be inserted into a notch (4-2) of a second holding element (5-2) of a second plurality of electrochemical elements (6-2) forming part of a second battery module (2-2), the first portion and the second portion having different dimensions, such that the first portion is not adapted to be inserted into the notch of the second holding element and/or the second portion is not adapted to be inserted into the notch of the first holding element, - a means (8) for preventing the removal of the connecting piece after it has been inserted into a notch of one of the two holding elements.
H01M 50/213 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
F16B 5/00 - Joining sheets or plates to one another or to strips or bars parallel to them
H01M 50/258 - Modular batteriesCasings provided with means for assembling
H01M 50/262 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks
Such electrochemical unit comprises a first stack of electrochemical cells provided with a first electrical connection tab, a second stack of electrochemical cells provided with a second electrical connection tab, a common connection element, electrically connecting the first electrical connection tab and the second electrical connection tab and suitable for electrically connecting the first electrical connection tab and the second electrical connection tab to a connection terminal with a first polarity. The common connection element is connected by a material bond to the first electrical connection tab and to the second electrical connection tab.
Such electrochemical unit comprises a first stack of electrochemical cells provided with a first electrical connection tab, a second stack of electrochemical cells provided with a second electrical connection tab, a common connection element, electrically connecting the first electrical connection tab and the second electrical connection tab and suitable for electrically connecting the first electrical connection tab and the second electrical connection tab to a connection terminal with a first polarity. The common connection element is connected by a material bond to the first electrical connection tab and to the second electrical connection tab.
Application to electrochemical batteries.
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/533 - Electrode connections inside a battery casing characterised by the shape of the leads or tabs
62.
USE OF LITHIUM SECONDARY ELECTROCHEMICAL CELLS CONTAINING A BLEND OF A LITHIUM NICKEL OXIDE AND A LITHIUM MANGANESE IRON PHOSPHATE FOR AUTOMOTIVE APPLICATIONS
The use of a blend of a lithium nickel oxide and a lithium manganese iron phosphate as an active material composition in the cathode of a lithium secondary electrochemical cell for automotive applications, such as hybrid and electric vehicles. This blend allows decreasing the porosity of a lithium manganese iron phosphate-based cathode. It also allows improving the detectability of a gas release in the cell in case of an abnormal operation of the cell. It allows lowering the cell impedance at a low state of charge, typically less than 30%, and reducing the impedance increase of the cell during the cell lifespan.
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 50/578 - Devices or arrangements for the interruption of current in response to pressure
H01M 50/581 - Devices or arrangements for the interruption of current in response to temperature
63.
Method for pulse charging in voltage control mode with steps of variable amplitude
The present invention relates to a method for charging an electrochemical cell of a rechargeable battery with charging pulse control (PL), the pulses (PL) being driven in voltage control mode in the form of voltage steps (Pt) of variable amplitude. According to the invention, the method consists in calculating the value (Ut+1) of each voltage step (Pt+1) with respect to the value (Ut) of the preceding voltage step (Pt) and according to a progression variable representative of the variation in the internal resistance of the cell (d(R)/dt), for a period ending on the preceding step (Pt), with respect to a predetermined tolerated variation threshold (α), where Var=d(R)/dt−α. The method applies to high-voltage electric battery charging protocols for electromobility or stationary applications, or portable device batteries, for example.
The present invention relates to a cover for an electrochemical element comprising: - a ring, the ring having an outer circumference (2a) and an inner circumference (2b), - a crown-shaped boss (3) located between the inner circumference (2b) and the outer circumference (2a), - at least two planar regions (9) in the shape of circular arcs located between the crown-shaped boss and the outer circumference of the ring when the cover is viewed in a direction perpendicular to the plane of the ring; - at least four projections (4) extending from the crown-shaped boss to the outer circumference (2a) along a non-radial axis, wherein a thinned region (5) is present in at least one of said four projections (4) and/or in the crown-shaped boss (3) and/or in at least one of the at least two planar regions (9).
The invention relates to a battery cell (10) comprising a can (14), a cover (22) fastened to the can (14), at least a first electrochemical bundle inside the can (14), and at least one collector having a first polarity. The first-polarity collector is secured to the cover (22) and defines at least a first welding surface located away from the can (14), on which surface the electrical connection tabs of the electrodes of the first electrochemical bundle are welded. The cover (22) comprises an upper part (50) delimiting at least a first through-hole (52) located facing the first welding surface in an elevation direction (Z). The battery cell further comprises a sealing device (54) fastened to the cover (22) and intended to sealingly close the first through-hole (52).
H01M 50/271 - Lids or covers for the racks or secondary casings
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 50/296 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by terminals of battery packs
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
66.
ELECTROCHEMICAL BUNDLE, BATTERY ELEMENT AND ASSOCIATED MANUFACTURING METHODS
The invention relates to an electrochemical bundle (12) comprising a plurality of stacks (20) each including an electrode (24) having a first polarity, an electrode (26) having a second polarity, a first separator (28) and a second separator (29). Each electrode (24) having the first polarity comprises an electrical connection tab (34). The electrochemical bundle (12) comprises a first metal separating device (22) positioned between each pair of adjacent electrical connection tabs (34). The first separating device (22) is attached to at least one of said electrical connection tabs (34). The first separating device (22) extends, between each pair of adjacent electrical connection tabs (34), between a lower edge (68) and an upper edge (70). The upper edges (70) of the first separating device (22) are substantially flush with the upper edges (54) of the electrical connection tabs (34).
The present invention relates to an electrochemical assembly, of the type comprising
a first stack of electrochemical elements provided with a first electrical connection tab with a first polarity, the first stack of electrochemical elements extending along a stacking plane, a first common connection element adapted to electrically connect the first electrical connection tab to an electrical connection terminal with the first polarity,
This electrochemical cell for a battery, comprises a first electrode of a first polarity, a first terminal of the first polarity, a second electrode of a second polarity, a second terminal of the second polarity, an envelope comprising two walls. The envelope comprises two first edges and two second edges forming an enveloping quadrilateral. The first terminal of the first polarity and/or the second terminal of the second polarity is disposed entirely within the enveloping quadrilateral. The two walls each comprise a metal base foil having a thickness of between 20 μm and 150 μm. The first terminal of the first polarity is arranged in a first corner of the enveloping quadrilateral and the second terminal of the second polarity is arranged in a second corner of the enveloping quadrilateral, different from the first corner.
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
ECOLE NATIONALE SUPERIEURE D INGENIEURS DE CAEN (France)
UNIVERSITE DE CAEN NORMANDIE (France)
Inventor
Pele, Vincent
Jordy, Christian
Neveu, Audric
Pralong, Valérie
Abstract
The present invention relates to sulfide solid electrolytes having improved conductivity, a process for the preparation thereof, and electrochemical elements and batteries containing same.
The present application concerns solid polymer electrolytes (SPEs) comprising thermoplastic vulcanizates (TPVs) and alkali metal salts, their process of preparation and the electrochemical cells comprising such electrolytes.
This electrochemical element for a battery, comprising a first electrode of a first polarity, a first terminal of the first polarity, a second electrode of a second polarity, a second terminal of the second polarity, and a casing comprising a first wall and a second wall. The first wall and the second wall each comprise a base body of metal and an electrically insulating layer. The electrically insulating layer comprises either a plastic coating or a layer resulting from a surface treatment. Each of the base bodies comprises a base body edge. The edges of the base bodies are joined by a weld bead to form the casing. At the location of the weld bead, the base bodies are free of the electrically insulating layer.
An electrochemical element comprising: a) a cathode containing an active material operating at a voltage of at least 4.7 V with respect to the Li+/Li couple; b) an anode comprising at least one titanium niobium oxide (TNO); c) an electrolyte comprising a solvent comprising: - either a mixture of 1,1,1,3,3,3-hexafluoro-2-methoxypropane (HFMP) and/or 1,1,1,3,3,3-hexafluoro-2-(fluoromethoxy)propane (HFMFP), monofluoroethylene carbonate (F1EC) and 2,2,2-trifluoroethyl methyl carbonate (F3EMC); - or a mixture of 1,1,1,3,3,3-hexafluoro-2-methoxypropane (HFMP) and/or 1,1,1,3,3,3-hexafluoro-2-(fluoromethoxy)propane (HFMFP), monofluoroethylene carbonate (F1EC) and 2,2,2-trifluoroethyl acetate (F3EA).
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/0569 - Liquid materials characterised by the solvents
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/0567 - Liquid materials characterised by the additives
H01M 10/0568 - Liquid materials characterised by the solutes
The present application relates to an electrode comprising pillars of conductors covered with at least two layers for improving the deposition of lithium, and the electrochemical cells and batteries comprising same.
This module comprises a stack, comprising: * a plurality of electrochemical cells (18); * at least one intermediate part (20) interposed between each pair of adjacent cells (18); * a mechanism for holding the stack clamping the cells (18) and the intermediate parts (20) against one another. The module comprises at least one dielectric liquid for cooling the stack. The intermediate part (20) defines at least one open channel (82A, 82B) for flow of the dielectric liquid. The channel (82A, 82B) opens onto the periphery of the stack in order to allow the dielectric liquid to flow through the stack and opens facing a main face (74, 76) of at least one cell (18), which face is applied against the intermediate part (20), in order to place the main face (74, 76) in contact with the dielectric liquid.
H01M 50/211 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains
H01M 50/264 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
H01M 50/209 - Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
The present invention relates to a current collector for a negative electrode, coated with at least one electronically conducting and ionically insulating layer, to the method for producing such a collector, and to batteries containing same.
222x2225223225224423322425688, and a mixture of a plurality thereof; a separator; a negative electrode comprising an active material made of lithium metal or of a lithium-based alloy; characterized in that the outer face of the spiral, facing the container, is formed by the positive electrode; and in that a sheet of lithium or of a lithium-based alloy at least partially covers the inner face of the container.
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 6/16 - Cells with non-aqueous electrolyte with organic electrolyte
The present application relates to an insulating film obtained by dry processing, to a method for obtaining same and to the use thereof to coat electrode edges, especially edges of positive electrodes for Li-ion batteries.
Centre national de la recherche scientifique (France)
ECOLE NATIONALE SUPERIEURE D INGENIEURS DE CAEN (France)
UNIVERSITE DE CAEN NORMANDIE (France)
Inventor
Pele, Vincent
Roumegous, Nadège
Jordy, Christian
Pralong, Valérie
Abstract
The present application relates to novel mixed compounds based on oxides and sulfides, and the use thereof as a solid electrolyte, with improved sulfide stability. The application further relates to electrochemical elements and lithium batteries containing such electrolytes.
An electrochemical element (15) comprising: a) a container (16) containing a box-shaped assembly having at least one positive plate and at least one negative plate separated by a separator, the at least one positive/negative plate having a positive/negative plate head (1, 2) formed of a portion of a current collector not covered with positive/negative active material; b) a cover (6) closing an opening in the container; c) a positive/negative electrical connection part (7-1, 7-2) connecting the at least one positive/negative plate head to a positive/negative current output terminal of the element; at least one of the positive electrical connection part or the negative electrical connection part having a support (8) with a plurality of connection means (11), each connection means connecting a plate head having a given polarity to the current output terminal having a corresponding polarity.
H01M 50/566 - Terminals characterised by their manufacturing process by welding, soldering or brazing
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/172 - Arrangements of electric connectors penetrating the casing
80.
ELECTROCHEMICAL ASSEMBLY, CORRESPONDING ELECTROCHEMICAL CELL, BATTERY AND METHOD OF MANUFACTURING
This electrochemical assembly (8) comprises a first electrochemical stack (16), having first stack electrodes of a first polarity (162) and first stack electrodes of a second polarity (164). The first stack electrodes of the first polarity comprise first terminal tabs (18) of the first polarity and forming a first electric terminal tab stack (20). The electrochemical assembly (8) comprises a second electrochemical stack (22), having second stack electrodes of the first polarity (222) and second stack electrodes of the second polarity (224). The second stack electrodes of the first polarity comprise second terminal tabs (24) of the first polarity and forming a second electric terminal tab stack (26). The electrochemical assembly (8) comprises a first terminal (30) comprising a terminal portion (32) and a tab connection portion (34). The first electric terminal tab stack (20) overlaps the second electric terminal tab stack (26) and is electrically connected to the tab connection portion (34) of the first terminal via the second electric terminal tab stack (26).
H01M 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/538 - Connection of several leads or tabs of wound or folded electrode stacks
H01M 50/553 - Terminals adapted for prismatic, pouch or rectangular cells
81.
METHOD FOR DETERMINING THE VALUE OF A PARAMETER RELATED TO THE STATE OF HEALTH OF AN ELECTROCHEMICAL CELL IN A BATTERY, SYSTEM FOR ELECTRONIC MANAGEMENT OF A BATTERY, AND CORRESPONDING BATTERY
The invention relates to a method for determining the value of one or more parameters relating to the state of health of at least one accumulator of a battery that is intended to provide electrical energy to an external application. A first state-of-health parameter related to the resistance of at least one electrochemical element of the battery is determined according to the method comprising:—a step (1) of determining the value of the state of charge of the electrochemica 1 element, expressed as a percentage of a maximum state of charge; —a step (2) of verifying whether the determined value of the state of charge belongs to a sought range; —a step of repeating, as long as the result of the verification step (2) is not positive, the determination step (1) and then the verification step (2); —calculating the value of the first parameter as a function of at least the value of the state of charge determined during the last determination step (1).
The present invention relates to a battery comprising: -i) at least two electrochemical elements (d) connected to one another by a connection part (c), each electrochemical element comprising a container, -ii) a material arranged between said at least two electrochemical elements, and -iii) at least one disconnection device, said device comprising: a heat-activatable element (a) able to deform when its temperature reaches a threshold value, the heat-activatable element being arranged such that, when its temperature QI reaches said threshold value, it disconnects the connection part (c) from at least one electrochemical element (d) through its deformation, said heat-activatable element not contributing to the conduction of electric current when an electric current flows through said electro-chemical elements, said heat-activatable element being placed in contact with the connection part (c) and with a current output terminal.
H01M 50/581 - Devices or arrangements for the interruption of current in response to temperature
H01M 10/653 - Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
83.
Micro-Service Management Platform Relating to Battery Management
The present invention relates to a service platform implemented by one or more computers. The platform comprises one or more micro-services, each micro-service having a standardized generic structure comprising: a subservice implementing a business function, a messaging sub-service. The platform also includes a communication system for exchanging data and messages, referred to as unified communication system.
G05B 19/4155 - Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by programme execution, i.e. part programme or machine function execution, e.g. selection of a programme
84.
METHOD FOR ESTIMATING THE STATE OF CHARGE OF AN ELECTROCHEMICAL ELEMENT AND ASSOCIATED DEVICES
The invention relates to a method for detecting the state of charge of an electrochemical element (12), the method comprising the steps of: - obtaining the voltage, current, temperature and capacity of the electrochemical element (12), - computing the state of charge of the electrochemical element (12) using two techniques: a first technique giving the value of the first model applied to the aforementioned values and corrected by the correction function, the first model being a neural network, the correction function giving for each value of the state of charge the statistical estimation error of the first model; and a coulometric second technique, - determining the most reliable technique depending on a reliability criterion of the corrected first model, and the value computed using the determined technique being the estimated value of the state of charge.
Disclosed is an electrolyte composition comprising: a) a solvent comprising: i) either a mixture of 1,1,1,3,3,3-hexaflu-oro-2-methoxypropane (HFMP) or of 1,1,1,3,3,3-hexafluoro-2-(fluoromethoxy)propane (HFMFP), of monofluoroethylene carbonate (F1EC) and of 2,2,2-trifluoroethyl methyl carbonate (F3EMC), ii) or a mixture of 1,1,1,3,3,3-hexafluoro-2-methoxypropane (HFMP) or of 1,1,1,3,3,3-hexafluoro-2-(fluoromethoxy)propane (HFMFP), of monofluoroethylene carbonate (F1EC) and of 2,2,2-trifluoroethyl acetate (F3EA), b) at least one lithium salt, the cation of which is the cation of an alkali metal.
A gel-type electrolyte comprising a matrix which is a poly(vinylidene fluoride-co-hexafluoropropylene) polymer in which is embedded a liquid mixture comprising at least one lithium salt and a solvent comprising at least one linear carbonate, the poly(vinylidene fluoride-co-hexafluoropropylene) polymer matrix representing 5 to 95% by weight in relation to the weight of the gel-type electrolyte and the liquid mixture representing 95 to 5% by weight in relation to the weight of the gel-type electrolyte. This electrolyte exhibits increased stability with respect to oxidation and reduction.
H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
87.
ELECTROCHEMICAL ELEMENT, AS WELL AS MODULES AND BATTERIES CONTAINING SAME
This invention concerns an electrochemical element, in particular a sulphurous solid electrolyte element, comprising a protective casing, as well as modules and batteries comprising such elements.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/204 - Racks, modules or packs for multiple batteries or multiple cells
H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
H01M 50/231 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by the material of the casings or racks having a layered structure
H01M 50/229 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/124 - Primary casingsJackets or wrappings characterised by the material having a layered structure
H01M 50/122 - Composite material consisting of a mixture of organic and inorganic materials
H01M 50/14 - Primary casingsJackets or wrappings for protecting against damage caused by external factors
The present application relates to fluoropolymer-based, solvent-free electrode formulations obtained by extrusion and/or comprising one or more co-binders, including TPU. The application further relates to the electrodes containing said formulations and to the corresponding electrochemical elements and storage cells.
This cover assembly for a secondary electrochemical cell comprises a cover plate (36), a negative terminal (16), a positive terminal (18). The negative terminal or the positive terminal comprises a terminal assembly (40), which comprises a terminal plate (50) adapted to be brought in contact with a connector; a terminal base (52) adapted to be electrically connected to a collector of the electrochemical cell; and a fuse (54) adapted to melt when subject to a determined rated electrical current and/or a determined rated electrical voltage. The fuse provides in the unmelted state an electrical connection of the terminal plate with the terminal base. The fuse (54) is adapted to, when melting, electrically separate the terminal plate from the terminal base and, upon melting, becoming molten fuse material. The terminal assembly comprises a fuse cavity (80) adapted to receive the molten fuse material.
The invention relates to an electrochemical element for a battery, which comprises a first electrode (22) having a first polarity, a first connecting member (24) having the first polarity, a second electrode (26) having a second polarity, a second connecting member (28) having the second polarity, and a casing (40) comprising a first wall (42) and a second wall (44). The casing comprises a first edge (48) and a second edge (50) which form an enclosing geometric shape (RE) having a corner (C1). The first connecting member (24) and the second connecting member (28) are arranged entirely inside the enclosing geometric shape (RE). The first connecting member and the second connecting member are arranged in a first corner (C1) of the enclosing geometric shape.
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
H01M 50/103 - Primary casingsJackets or wrappings characterised by their shape or physical structure prismatic or rectangular
The invention relates to a method for predicting the remaining life of an electrochemical cell having an SOC - OCV characteristic with a planar portion extending between two limits, said method comprising the steps of: obtaining voltage and current measurements from the electrochemical cell during a discharge; detecting a limit; calculating the values at the voltage limit detected and the amount of charge lost; predicting the resistance and capacitance of the electrochemical cell by applying respective predictive functions obtained by a learning technique to the voltage and the amount of charge lost at the limit detected; and predicting the remaining life of the electrochemical cell from the predicted resistance and predicted capacitance.
G01R 31/378 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
G01R 31/367 - Software therefor, e.g. for battery testing using modelling or look-up tables
G01R 31/382 - Arrangements for monitoring battery or accumulator variables, e.g. SoC
G01R 31/392 - Determining battery ageing or deterioration, e.g. state of health
92.
MIXTURE OF ACTIVE MATERIALS FOR CATHODE OF A LITHIUM-ION ELEMENT
The invention relates to a mixture comprising: - more than 50 to 99% by weight of a lithium phosphate of manganese and iron - 1 to less than 50% by weight of at least one lithium oxide of nickel, manganese and cobalt or at least one lithium oxide of nickel, cobalt and aluminium, or of a mixture of these two oxides, these two lithium oxides being rich in nickel. This mixture can be used as active material of the cathode of a lithium-ion electrochemical element. The charging profile of the element has a plateau indicating the end of charging.
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/58 - Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFySelection of substances as active materials, active masses, active liquids of polyanionic structures, e.g. phosphates, silicates or borates
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
H01M 4/02 - Electrodes composed of, or comprising, active material
93.
METHOD FOR AVOIDING THE PROPAGATION OF A THERMAL EVENT IN AN ENCLOSURE COMPRISING SEVERAL MODULES OF ELECTROCHEMICAL CELLS
A method for avoiding the spread of a thermal event in an enclosure containing several modules (1, 2, 3, 4) of electrochemical elements, said method comprising the following steps: —detecting one or more critical modules (1, 2, 3) situated in the enclosure, and affected by a thermal event (13), a module being critical when one or more parameters associated with the status of the module have reached or crossed a predetermined threshold, —spraying a coolant (12) onto, or into, the critical module or modules (1, 2, 3) for a determined duration and/or at a determined flow rate, one or more modules (4) not detected as being critical modules not receiving any coolant (12).
H01M 10/6569 - Fluids undergoing a liquid-gas phase change or transition, e.g. evaporation or condensation
H01M 10/48 - Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
94.
DEVICE FOR CREATING A DC VOLTAGE BUS FOR A POLYPHASE ELECTRICAL SYSTEM, MOTOR VEHICLE AND RENEWABLE ENERGY GENERATOR COMPRISING SUCH A DEVICE
CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (France)
SAFT (France)
SORBONNE UNIVERSITE (France)
UNIVERSITE PARIS-SACLAY (France)
Inventor
Roy, Francis
Peuchant, Thomas
Herpe, David
Laboure, Eric
Castejon, Franck
Abstract
The invention relates to a device forming a DC voltage bus for a polyphase electrical system (M), comprising voltage legs (A1, A2, A3) each having a plurality of battery cell modules (C1, C2, C3), each module comprising a battery cell or a cluster of battery cells (c1), connected to a DC-to-AC converter (DCAC); said battery cell modules (C1, C2, C3) being connected together in series via the DC-to-AC converter (DCAC); said voltage legs (A1, A2, A3) each being connected to a specific phase leg (B1, B2, B3) for said polyphase electrical system (M), at least one phase leg (B1, B2, B3) having a branch (D1, D2, D3) connected to a rectifier module (R1). The invention also relates to a motor vehicle, a renewable energy generator and a method based on such a system.
x2-y-zyz4-d-ccc (LMNO) where M is one or more elements chosen from the group consisting of B, Mg, Al, Si, Ca, Ti, V, Cr, Fe, Co, Cu, Zn, Y, Zr, Nb, Ru, W and Mo; and 1≤x≤1.4; 0
H01M 4/1315 - Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx containing halogen atoms, e.g. LiCoOxFy
H01M 4/136 - Electrodes based on inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/52 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/02 - Electrodes composed of, or comprising, active material
96.
METHOD FOR CORRECTING THE VARIATION IN OPEN-CIRCUIT VOLTAGE DUE TO AGING OF AT LEAST ONE ELECTROCHEMICAL ELEMENT OF A BATTERY, AND ASSOCIATED DEVICES
The invention relates to a method for correcting the variation in open-circuit voltage due to aging of an electrochemical element exhibiting a state-of-charge - open-circuit-voltage characteristic with a flat portion comprising a reference point, the method comprising the steps of: - obtaining the voltage and the current of the element during charging or discharging; - calculating the overvoltage by calculating the state of charge according to two techniques, only one using a state-of-charge - open-circuit-voltage calibration function; - determining the measured value of the reference voltage for each reference point using the overvoltage; and - estimating the variation by comparing the reference value with the corresponding measured value.
The invention concerns an electrochemical element and the method for manufacturing same, as well as a battery comprising one or more electrochemical elements, for application in particular in the field of electrochemical elements or Li-ion batteries. The electrochemical element comprises a closed shell (1) defining an internal volume inside which a bundle (2) is arranged, having alternating positive and negative electrodes (3) respectively connected to two positive and negative electrical output terminals and housing separators, the bundle (2) being impregnated with electrolyte. The shell (1) comprises a bottom wall (4) having an internal bottom face (4a), oriented towards the internal volume, and at least one side wall (5, 6) having an internal side face (5a, 6a), oriented towards the internal volume. The internal side face (5a, 6a) joins the internal bottom face (4a) by substantially forming an internal angle (a).
H01M 10/04 - Construction or manufacture in general
H01M 10/0585 - Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
98.
COMPOSITE ELECTRODE HAVING A SOLID ELECTROLYTE BASED ON POLYCARBONATES
A composite electrode with a solid electrolyte based on polycarbonates includes at least one solid electrolyte consisting of one or more (co)polymers obtained by ring-opening (co)polymerization (ROP) of at least one five- to eight-membered cyclic carbonate and, optionally, of at least one five- to eight-membered lactone, catalyzed with methanesulfonic acid or performed under microwave irradiation in the absence of catalyst. The hydroxyl functions at the end of the chain of the (co)polymer(s) may be protected. The electrode also includes at least one alkali metal or alkaline-earth metal salt and at least one electrode active material. The electrode may include one or more electrically conductive additives and/or one or more binders. The electrode may be used in an electrochemical system such as a lithium battery.
H01M 4/525 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/36 - Selection of substances as active materials, active masses, active liquids
H01M 4/505 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 4/485 - Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H01M 4/1391 - Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
H01M 10/0565 - Polymeric materials, e.g. gel-type or solid-type
A paste electrode comprising a current collector support which is coated on at least one of its faces with a coating composed of a composition comprising an active material comprising an alloy of zinc with one or more chemical elements, and one or more binders. This electrode may be used as an anode of an electrochemical element comprising alkaline electrolyte. The coating contains at most 0.5% by mass of mercury or mercury compound. The electrode in spite of this presents effective resistance to corrosion by the electrolyte.
The present invention relates to a positive electrode active material, suitable for all-solid-state lithium-sulfur electrochemical elements, comprising an ionically conductive and electronically conductive electrolyte, and to the electrochemical elements comprising same.
