The present application discloses a rechargeable lithium battery without a charging port and a manufacturing method thereof. The lithium battery includes a first negative electrode metal casing, a voltage regulation circuit board, a low-voltage positive electrode cap, a high-voltage positive electrode connector, a lithium battery cell, a low-voltage positive/negative electrode insulating spacer, and an insulating housing, wherein an upper end of the first negative electrode metal casing is inwardly provided with a first flange; an upper surface of the voltage regulation circuit board is provided with a negative electrode copper ring and a positive electrode copper ring; the voltage regulation circuit board is welded to an inner side of the first flange of the first negative electrode metal casing through the negative electrode copper ring; and the high-voltage positive electrode connector is arranged on an inner surface of the voltage regulation circuit board.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/534 - Electrode connections inside a battery casing characterised by the material of the leads or tabs
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 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
The present application relates to the technical field of lithium batteries. Disclosed are a charging-port-free rechargeable lithium battery and a manufacturing method therefor. The lithium battery comprises a first negative metal housing, a voltage adjustment circuit board, a low-voltage positive cap, a high-voltage positive connector, a lithium battery cell, a low-voltage positive and negative insulating separator and an insulating housing. A first flange is provided inwards at the upper end of the first negative metal housing; a negative copper ring and a positive copper ring are provided on the upper surface of the voltage adjustment circuit board; the voltage adjustment circuit board is welded to the inner side of the first flange on the first negative metal housing by means of the negative copper ring; and the high-voltage positive connector is arranged on the inner surface of the voltage adjustment circuit board. The lithium battery in the present application can stably output a low voltage, and the voltage adjustment circuit board is welded to the inner side of the first flange, such that the electrical connection performance is very reliable, and sealing is achieved by means of solder; there is no need to provide an insulating support below the voltage adjustment circuit board for support, thereby omitting the insulating support, and reducing a height space occupied by the voltage adjustment circuit board; and the capacity of the lithium battery cell is increased by means of lengthening the lithium battery cell.
The present application relates to a rechargeable lithium battery and a manufacturing method therefor. The lithium battery comprises a voltage regulation circuit assembly, a plastic frame, a first metal casing, a lithium battery cell, and an insulating sheath. The lithium battery cell comprises a wound cell assembly, a high-voltage positive cap assembly, and a second metal casing. An annular rolling groove is formed on the upper portion of the second metal casing, dividing the second metal casing into a body portion and a contracted portion. The contracted portion of the second metal casing is embedded into the first metal casing, and the outer surface of the first metal casing is flush with the outer surface of the second metal casing. In the present application, first, a complete and independent lithium battery cell is manufactured, which is then subjected to formation and capacity grading; by selecting compliant lithium batteries and then placing into the first metal casing, the technical problem of non-conforming capacity in lithium batteries in the prior art can be solved, greatly reducing the non-compliance rate of products. The disassembly of the first metal casing and the second metal casing is significantly convenient, facilitating maintenance; the voltage regulation circuit assembly can be reused after maintenance.
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
4.
MANUFACTURING METHOD AND DEVICE FOR AA LITHIUM ION BATTERY, APPARATUS AND MEDIUM
A manufacturing method for an AA lithium ion battery, comprising: preparing a battery cell on the basis of a battery cell preparation process; selecting a steel material for preparing a battery and stamping same to obtain an upper steel casing of a battery; acquiring a user demand and attribute parameters of spring contacts, and determining bending parameters of the spring contacts on the basis of the user demand and the attribute parameters of the spring contacts; on the basis of the bending parameters of the spring contacts, assembling a PCB and the upper steel casing of the battery, bending a negative electrode spring contact on a side surface of the PCB downwards such that the negative electrode spring contact is in elastic contact with the upper steel casing, and bending a positive electrode spring contact at the bottom of the PCB downwards such that the positive electrode spring contact is in elastic contact with the top of the battery cell, so as to obtain a complete buck-charging terminal; sleeving the complete buck-charging terminal on the battery cell to obtain a semi-finished battery product; and rolling and fixing the semi-finished battery product along a rolling recess of the battery cell, and sleeving an insulating film on the rolled and fixed semi-finished product, so as to obtain a finished battery product.
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
5.
1.5V LITHIUM BATTERY AND MANUFACTURING METHOD THEREFOR
The present application relates to a 1.5V lithium battery and a manufacturing method therefor. The lithium battery comprises a circuit component (1), a plastic frame (2), a wound battery cell assembly (3), a first metal housing (4), a second metal housing (5), a first insulating sealing member (6) and an insulating sheath (7). The wound battery cell assembly (3) is arranged inside the second metal housing (5). The first metal housing (4) and the second metal housing (5) are vertically docked and are fixed by means of circumferential welding. The circuit component (1) comprises a PCB (11), a low-voltage positive electrode cap (12), a high-voltage positive electrode connection piece (13) and a negative electrode elastic piece (14); and the circuit component (1) can stably output a low voltage of 1.5V. The upper end of the wound battery cell assembly (3) is arranged at a relatively shallow depth within the second metal housing (5), which requires the length of a positive electrode tab (31) to be shortened so that the length is insufficient for making contact with the inner wall of the metal housing, thus thoroughly solving the risk of short circuit between the positive electrode tab (31) and the metal housing. The first insulating sealing member (6) and a second insulating sealing member (8) can prevent electrolytes from leaking or entering the first metal housing (4), thereby ensuring the stability of electrical performance.
H01M 50/186 - Sealing members characterised by the disposition of the sealing members
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
The present application relates to a step-down lithium battery and a manufacturing method therefor. The step-down lithium battery comprises a circuit assembly, a plastic frame, a wound battery cell assembly, a first metal housing, a second metal housing, an insulating sealing member and an insulating sheath, the circuit assembly and the plastic frame being arranged in the first metal housing, the wound battery cell assembly being arranged in the second metal housing, the first metal housing and the second metal housing being fitted with each other vertically and being fixed by means of circumferential welding, the insulating sealing member being used for sealing the second metal housing, and the insulating sheath wrapping the first metal housing and the second metal housing. The present application uses the first metal housing and the insulating sealing member for completely sealing the upper end of the second metal housing, thus achieving good sealing performance, and effectively preventing electrolyte leakage; and only one steel housing layer is provided outside the wound battery cell assembly, such that compared with the prior art, one steel housing layer or soft housing layer is reduced, thus reducing the material cost. The connection strength of the first metal housing and the second metal housing is high, such that the first metal housing and the second metal housing are not prone to damage.
Disclosed in the present invention are a rapid MPPT method, system and apparatus based on a unipolar inverter circuit. The method comprises the following steps: initializing MPPT control parameters; when a sampling condition is met within each computing period, triggering a sampling operation, and recording photovoltaic-side data within the current computing period; when a power grid phase meets a computing condition, computing the magnitude relationship between a voltage within the current computing period and a voltage within the previous computing period, and on the basis of the magnitude relationship, determining a power compensation factor; on the basis of the power compensation factor and a power computing strategy, determining output power and/or a reference voltage; and on the basis of the output power, controlling the power of an inverter within the computing period. In the present invention, on the basis of the characteristics of a unipolar inverter circuit, the aims of a low computing power and a high response speed are achieved.
H02K 3/38 - Windings characterised by the shape, form or construction of the insulation around winding heads, equalising connectors, or connections thereto
G05F 1/67 - Regulating electric power to the maximum power available from a generator, e.g. from solar cell
8.
Rechargeable lithium battery and manufacturing method thereof
The present application relates to a rechargeable lithium battery and a manufacturing method thereof, the lithium battery includes a voltage regulation circuit assembly, a plastic frame, a first metal housing, a lithium cell and an insulation sheath, wherein the lithium cell includes a winding cell assembly, a high-voltage positive electrode cap assembly and a second metal housing, an annular rolling groove is formed on an upper portion of the second metal housing, the second metal housing is divided by the annular rolling groove into a lower body portion and an upper contraction portion, the contraction portion of the second metal housing is embedded in the first metal housing, an outer surface of the first metal housing is aligned with an outer surface of the second metal housing.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/233 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions
H01M 50/287 - Fixing of circuit boards to lids or covers
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 present application relates to a low-voltage lithium battery, comprising: a circuit assembly, a plastic middle frame, a wound cell assembly, a metal housing, and an insulating outer sheath. The circuit assembly comprises a PCB, an outer conductive cap, and an inner conductive cap. A positive electrode copper ring and a negative electrode copper ring are arranged on the front side of the PCB. The positive electrode copper ring is electrically connected to the outer conductive cap, and the negative electrode copper ring is electrically connected to the metal housing. A high-voltage input copper ring is arranged on the back side of the PCB, and is electrically connected to the inner conductive cap. A positive tab of the wound cell assembly is electrically connected to the inner conductive cap, and a negative tab of the wound cell assembly is electrically connected to the metal housing. By providing the positive electrode copper ring, the negative electrode copper ring, and the high-voltage input copper ring on the PCB, the electrical connection between the wound cell assembly and the PCB and the electrical connection between a low-voltage output element and the PCB can be achieved without the use of conductive wires, improving the stability of electrical performance, simplifying the internal connection structure of the lithium battery, enhancing safety, and enabling industrialized production.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
The present application relates to a 1.5 V lithium battery and a manufacturing method therefor. The 1.5 V lithium battery comprises a circuit assembly, a plastic middle frame, a wound battery cell assembly, a metal case, and an insulating sleeve; the circuit assembly, the plastic middle frame and the wound battery cell assembly are sequentially arranged in the metal case from top to bottom; a groove is inwards formed in the upper part of the metal case, and a spun edge is inwards arranged at the top of the metal case; the groove limits the wound battery cell assembly at the bottom of the metal case; the plastic middle frame is limited between the groove and the spun edge, and sealing between the plastic middle frame and the metal case is achieved; and the circuit assembly is arranged on the plastic middle frame. According to the present application, the wound battery cell assembly is directly placed in the metal case, which eliminates a layer of outer wrapping compared to the prior art using pouch lithium battery cells or hard-case lithium battery cells, resulting in lower costs; by providing the groove, the wound battery cell assembly is fixed; and the groove and the spun edge at the upper end jointly press and seal the plastic middle frame, without leaking an electrolyte.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
The present application relates to a low-voltage lithium battery, including a circuit assembly, a middle plastic frame, a wound battery core assembly, a metal housing and an insulating sheath, wherein the circuit assembly includes a PCB, an outer conductive cap and an inner conductive cap, a front surface of the PCB is provided with a positive copper ring and a negative copper ring, the positive copper ring is electrically connected with the outer conductive cap, the negative copper ring is electrically connected with the metal housing, a back surface of the PCB is provided with a high-voltage input copper ring, the high-voltage input copper ring is electrically connected with the inner conductive cap, a positive tab of the wound battery core assembly is electrically connected with the inner conductive cap, and a negative tab is electrically connected with the metal housing.
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
A buck circuit assembly for a lithium battery, and a 1.5 V lithium battery. The buck circuit assembly comprises a PCB (1), an outer conductive cap (2) and an inner conductive cap (3); the front surface of the PCB (1) is provided with a positive electrode copper ring (11) and a negative electrode copper ring (12); the positive electrode copper ring (11) is electrically connected to the outer conductive cap (2); the outer conductive cap (2) is used as a low-voltage output positive electrode; the negative electrode copper ring (12) is used as a common negative electrode; the back surface of the PCB (1) is provided with a high-voltage input copper ring (13); the high-voltage input copper ring (13) is electrically connected to the inner conductive cap (3); and the inner conductive cap (3) is used as a high-voltage input positive electrode. The PCB (1) achieves the functions of high-voltage input and low-voltage output by means of the three copper rings; the high-voltage input copper ring (13) serves as a high-voltage input positive electrode, the positive electrode copper ring (11) serves as an output positive electrode of a lithium battery, the negative electrode copper ring (12) serves as an output negative electrode of the lithium battery, achieving charging and discharging functions by means of the same port; and there is no need to provide any conductive cable, achieving higher stability of electrical performance, simplifying the internal connection structure of the lithium battery, and making the lithium battery safer.
The present application discloses a preparation method, apparatus, device and medium for a No. 5 lithium-ion battery. The method includes: preparing a battery cell; selecting a steel material and stamping it to obtain an upper steel shell of the battery; determining bending parameters of the spring sheet based on user requirements and attribute parameters of the spring sheet; assembling a PCB board and the upper steel shell based on the bending parameters, bending a negative spring sheet on a side of the PCB board downwards, and bending a positive spring sheet at a bottom of the PCB board downwards, thus obtaining a complete step-down charging terminal; fitting the complete step-down charging terminal onto the battery cell to obtain a semi-finished product; and fixing the semi-finished product by roller pressing, and covering an insulating film on an outside of the semi-finished product to obtain a finished product of the battery.
H01M 50/284 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with incorporated circuit boards, e.g. printed circuit boards [PCB]
H01M 50/559 - Terminals adapted for cells having curved cross-section, e.g. round, elliptic or button cells
H01M 50/562 - Terminals characterised by the material
14.
1.5V lithium battery and manufacturing method thereof
The present application relates to a 1.5V lithium battery and a manufacturing method thereof; the 1.5V lithium battery includes a circuit assembly, a plastic middle frame, a wound battery core assembly, a metal housing and an insulating sheath, wherein the circuit assembly, the plastic middle frame and the wound battery core assembly are sequentially arranged in the metal housing from top to bottom; a rolling groove is inwardly provided in an upper portion of the metal housing, a spun edge is inwardly provided at a top of the metal housing, the wound battery core assembly is limited at a bottom of the metal housing by the rolling groove, the plastic middle frame is limited between the rolling groove and the spun edge to realize sealing between the plastic middle frame and the metal housing, and the circuit assembly is arranged on the plastic middle frame.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
The present application relates to a voltage drop circuit assembly of a lithium battery and a 1.5V lithium battery. The voltage drop circuit assembly includes a PCB, an outer conductive cap and an inner conductive cap, a front surface of the PCB is provided with a positive copper ring and a negative copper ring, the positive copper ring is electrically connected with the outer conductive cap, the outer conductive cap is used as a low-voltage output positive electrode, the negative copper ring is used as a common negative electrode, a back surface of the PCB is provided with a high-voltage input copper ring, the high-voltage input copper ring is electrically connected with the inner conductive cap, and the inner conductive cap is used as a high-voltage input positive electrode.
H01M 50/284 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders with incorporated circuit boards, e.g. printed circuit boards [PCB]
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 10/42 - Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
H01M 10/0525 - Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodesLithium-ion batteries
16.
Voltage-reduced lithium battery and manufacturing method thereof
The present application relates to a voltage-reduced lithium battery and a manufacturing method thereof. The voltage-reduced lithium battery includes a circuit assembly, a plastic frame, a wound battery core assembly, a first metal housing, a second metal housing, an insulating seal and an insulating sheath, wherein the circuit assembly and the plastic frame are arranged in the first metal housing, the wound battery core assembly is arranged in the second metal housing, the first metal housing and the second metal housing are in vertical butt connection and fixed by circumferential welding, the insulating seal is configured to seal the second metal housing, and the insulating sheath covers the first metal housing and the second metal housing.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 10/46 - Accumulators structurally combined with charging apparatus
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
The present application relates to a 1.5V lithium battery. The lithium battery includes a circuit assembly, a plastic frame, a wound battery core assembly, a first metal housing, a second metal housing, a first insulating seal and an insulating sheath. The wound battery core assembly is arranged in the second metal housing, the first metal housing and the second metal housing dock with each other and fixed by circumferential welding, and the circuit assembly includes a PCB, a low-voltage positive cap, a high-voltage positive connecting piece and a negative elastic piece. In the present application, the circuit assembly can stably output a low voltage of 1.5V.
H01M 10/0587 - Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
H01M 50/107 - Primary casingsJackets or wrappings characterised by their shape or physical structure having curved cross-section, e.g. round or elliptic
H01M 50/184 - Sealing members characterised by their shape or structure
H01M 50/186 - Sealing members characterised by the disposition of the sealing members
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 50/536 - Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
H01M 50/586 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries inside the batteries, e.g. incorrect connections of electrodes
H01M 50/59 - Means for preventing undesired use or discharge for preventing incorrect connections inside or outside the batteries characterised by the protection means
09 - Scientific and electric apparatus and instruments
Goods & Services
Earphones; Battery chargers; Cabinets for loudspeakers; Communications servers; Computer peripheral devices; Data cables; Downloadable computer software and firmware for operating system programs; Network routers; Portable media players; Rechargeable batteries
