Described herein are electrode active layers for energy conversion or storage devices, such as supercapacitors or batteries, and which comprise an active material and a binder comprising a salt of a sulfonated polymer. Also described herein are slurries for producing such active layers, composite electrodes comprising such active layers, and uses of such active layers in energy conversion or storage devices, as well as methods of making such active layers.
C08F 212/14 - Monomers containing only one unsaturated aliphatic radical containing one ring substituted by hetero atoms or groups containing hetero atoms
An electric double layer capacitor (EDLC) device (1) for reflow soldering to a printed circuit board (PCB) (2). Device (1) includes a cylindrical thin-walled malleable aluminium housing (3) that extends between an open end (5) and a closed end (6). Housing (3) defines a circular opening (7) adjacent to end (5) and a cylindrical cavity (8) that extends away from opening (7) and which terminates at end (6). A cylindrical capacitor element (9) is received complementarily in cavity (8) and includes two carbon based electrodes (11, 12). A separator, in the form of two elongate paper-based separator sheets (13, 14) are alternated, and spiral wound together with electrodes (11, 12). Sheets (13, 14) maintain electrodes (11, 12) in a spaced apart and opposed configuration. An electrolyte impregnates electrodes (11, 12) as well as sheets (13, 14) and is contained within cavity (6) for allowing ionic conduction between electrodes (11, 12). The electrolyte has at 1 atm a freezing point of less than 0 °C and a boiling point of more than 200 °C. A sealing element, in the form of a rubber lid (15), extends over and seals opening (7). Two terminals (17, 18), in use, each extend between a first end (19) disposed in cavity (8) and a second end (20) disposed externally to cavity (8). Ends (19) are electrically connected to the respective electrodes (11, 12), and terminals (17, 18) extend through opening (7) such that ends (20) are available for electrical connection to PCB (2).
H01G 11/84 - Processes for the manufacture of hybrid or EDL capacitors, or components thereof
H01G 11/24 - Electrodes characterised by structural features of the materials making up or comprised in the electrodes, e.g. form, surface area or porosityElectrodes characterised by the structural features of powders or particles used therefor
H01G 11/60 - Liquid electrolytes characterised by the solvent
H01G 11/76 - Terminals, e.g. extensions of current collectors specially adapted for integration in multiple or stacked hybrid or EDL capacitors
H01G 11/82 - Fixing or assembling a capacitive element in a housing, e.g. mounting electrodes, current collectors or terminals in containers or encapsulations
H01M 4/02 - Electrodes composed of, or comprising, active material
H01M 4/62 - Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
H05K 13/08 - Monitoring manufacture of assemblages
3.
A CURRENT LIMIT CIRCUIT FOR A SUPERCAPACITIVE DEVICE
System (2) includes a supercapacitive device (8) that is electrically connected across a starter (motor7) for supplying current to that motor during a starting sequence of engine (3). Device (8) includes a single sealed housing (9) that contains a plurality six substantially identical individual supercapacitive cells (10) which are connected in series to provide a total capacitance of 150 Farads and an equivalent series resistance(ESR) of 5 mOhms. Also contained within housing (9) is an active balance circuit (11) for maintaining substantially the same voltage across each of cells (10) to protect against overvoltage across the cells (10). In other embodiments circuit (11) is a passive balance circuit.
H02M 9/04 - Conversion of DC or AC input power into surge output power with DC input power using capacitative stores
H02M 3/137 - Conversion of DC power input into DC power output without intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
H02M 3/18 - Conversion of DC power input into DC power output without intermediate conversion into AC by dynamic converters using capacitors or batteries which are alternately charged and discharged, e.g. charged in parallel and discharged in series
B60K 6/22 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
F02N 11/00 - Starting of engines by means of electric motors
F02N 11/14 - Starting of engines by means of electric starters with external current supply
4.
A CONTROL SYSTEM FOR AN AUTOMOTIVE ENGINE AND A METHOD OF CONTROLLING AN AUTOMOTIVE ENGINE
An automotive engine (3) has a start-up state that occurs during a starting sequence and a run state when operating normally. A starter unit, in the form of a motor (7), cranks the drive unit during the start-up state, and a first energy storage device, in the form of a supercapacitive device (8), supplies electrical energy to the motor (7) during the start-up state. A second energy storage device, in the form of a battery (5), supplies electrical energy selectively to the device (8) other than during the start-up state, and an electrical supply unit, in the form of an alternator (6), selectively supplies electrical energy during the run state to the device (8).
B60K 6/28 - Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the electric energy storing means, e.g. batteries or capacitors
B60W 10/26 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means for electrical energy, e.g. batteries or capacitors
B60W 10/24 - Conjoint control of vehicle sub-units of different type or different function including control of energy storage means
B60W 20/00 - Control systems specially adapted for hybrid vehicles
F02N 11/08 - Circuits specially adapted for starting of engines
H02J 7/14 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
An electrolyte system suitable for use in an energy storage device (such as a supercapacitor), and energy devices which comprising the electrolyte system which is made up of an ionic liquid, such as Li or EMI TFSI and a stabilising amount of a stabilising additive. The stabilising additive preferably contains nitrile and or aromatic (benzene) groups, and may be advantageously benzonitrile, cinnamonitrile or succinonitrile. The stabilising additive stabilises the energy storage device against ESR rise and/or capacitance loss but does not adversely affect other performance characteristics of the ionic liquid.
A supercapacitor capable of withstanding SMT manufacturing conditions includes at least one pair of electrodes having a mixture of carbon particles preferably in a CMC binder on facing surfaces of the at least one pair of electrodes; a porous separator, preferably polyimide, positioned between the facing surfaces of the at least one pair of electrodes; and an electrolyte for wetting the separator wherein the electrolyte includes an ionic liquid, such as EMITSFI, and optionally a solvent such as PC, GBL or glutaronitrile.
A generally prismatic package (1) for an electrical device in the form of supercapacitive element (2) having an electrical property with a predetermined value. Package (1) includes an insulating element in the form of a generally rectangular-prismatic liquid crystal polymer (LCP) housing (3) for supporting element (2). More specifically, element (2) is mounted to the insulating element such that, following surface mounting of element (2) to a substrate, in the form of a printed circuit board (not shown), the electrical property remains within a predetermined tolerance.
A supercapacitor capable of withstanding SMT manufacturing conditions comprising at least one pair of electrodes having a mixture of carbon particles preferably in a CMC binder on facing surfaces of the at least one pair of electrodes; a porous separator, preferably polyimide, positioned between the facing surfaces of the at least one pair of electrodes; and an electrolyte for wetting the separator wherein the electrolyte comprises an ionic liquid, such as EMITSFI, and optionally a solvent such as PC, GBL or glutaronitrile.
A supercapacitor (1) includes two like stacked supercapacitive cells (2, 3) that are connected to each other in series. A two-piece generally prismatic sealed package (4) defines an interior (5) to contain cells (2, 3). Package (4) includes a substantially planar access sidewall (6) having two spaced apart apertures (7, 8) extending from interior (5) to an exterior of the package. Sidewall (6) contains a liquid crystal polymer (LCP). A lead assembly, in the form of two spaced apart metal leads (9, 10) are electrically connected to cells (2, 3) respectively, and extend through respective apertures (7, 8) to allow external electrical connection to the cells.
Electrolyte for use in an energy storage device such as a capacitor or supercapacitor which comprises a solvent (preferably propionitrile) and an ionic species (preferably methyltriethylammonium tetrafluoroborate). The electrolytes provide a low ESR rise rate, a high voltage and permit operation over a wide range of temperatures, which makes them beneficial for use in a range of energy storage devices such as digital wireless devices, wireless LAN devices, mobile telephones, computers, electrical or hybrid electrical vehicles.
A power supply (1) for powering a load, the load being in the form of a flash driver circuit (4) for a digital camera (not shown). The power supply includes a supercapacitive device, in the form of a supercapacitor (8), for powering circuit (4). A regulator unit, in the form of an inductive regulator (10), charges supercapacitor (8).
09 - Scientific and electric apparatus and instruments
Goods & Services
Capacitors; supercapacitors; electric energy storage
devices, including but not limited to, electric energy
storage devices for use in relation to machines and machine
tools, photography equipment and apparatus, motors and
engines, machines couplings and transmissions, agricultural
and farm implements, hand tools, photographic,
cinematographic, optical, weighing, measuring and signalling
apparatus, vending machines, calculating machines, surgical,
medical, dental and veterinary equipment, apparatus for
lighting, heating, steam generation, cooking, refrigerating,
drying, ventilating, water supply and sanitary purposes,
vehicles of all kinds, powered musical instruments, powered
household and kitchen utensils, computers, data carriers and
terminals, pagers, power supplies, audio systems, electric
steering and suspension units, domestic power sources,
emergency lighting, grid load levelling equipment, hybrid
equipment containing fuel cells, industrial actuators,
electronic point of sale equipment, televisions, navigation
aids, powered telecommunications equipment including but not
limited to personal communication equipment, mobile
telephones, personal entertainment devices and personal
radios, remote area power supplies, power tools and
appliances, power quality conditioning equipment, satellite
communication equipment, sonar buoys, starting devices for
internal combustion engines, sound equipment, electric
energy storage devices, including but not limited to,
electric energy storage devices for use in relation to
uninterruptible power supplies and toys; parts, components
and accessories including, but not limited to, coated foils,
for all the aforementioned goods.
Electrolyte for use in an energy storage device such as a capacitor or supercapacitor which comprises a solvent (preferably propionitrile) and an ionic species (preferably methyltriethylammonium tetrafluoroborate). The electrolytes provide a low ESR rise rate, a high voltage and permit operation over a wide range of temperatures, which makes them beneficil for use in a range of energy storage devices such as digital wireless devices, wireless LAN devices, mobile telephones, computers, electrical or hybrid electrical vehicles.
09 - Scientific and electric apparatus and instruments
Goods & Services
Capacitors; supercapacitors; electric energy storage devices, namely, electric storage batteries and electric capacitors for use in relation to machines and machine tools, photography equipment and apparatus, motors and engines, machines couplings and transmissions, agricultural and farm implements, hand tools, photographic, cinematographic, optical, weighing, measuring and signalling apparatus, vending machines, calculating machines, surgical, medical, dental and veterinary equipment, apparatus for lighting, heating, steam generation, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, vehicles of all kinds, powered musical instruments, powered household and kitchen utensils, computers, data carriers and terminals, pagers, power supplies, audio systems, electric steering and suspension units, domestic power sources, emergency lighting, grid load levelling equipment, hybrid equipment containing fuel cells, industrial actuators, electronic point of sale equipment, televisions, navigation aids, powered telecommunications equipment, namely, personal communication equipment, mobile telephones, personal entertainment devices and personal radios, remote area power supplies, power tools and appliances, power quality conditioning equipment, satellite communication equipment, sonar buoys, starting devices for internal combustion engines, sound equipment, electric energy storage devices, namely, electric energy storage devices for use in relation to uninterruptible power supplies and toys; parts, components and accessories, namely, coated foils in the nature of foil elements, namely, capacitance electrodes for electrical conduction and energy storage for all the aforementioned goods; and structural parts for capacitors, electric storage batteries and electric capacitors, namely, electrodes
09 - Scientific and electric apparatus and instruments
Goods & Services
Electric energy storage devices, including electric energy
storage devices for use in the following, namely: machines
and machine tools, motors and engines, machines couplings
and transmissions, agricultural and farm implements, hand
tools, photographic, cinematographic, optical, weighing,
measuring and signalling apparatus, vending machines,
calculating machines, surgical, medical, dental and
veterinary equipment, apparatus for lighting, heating, steam
generation, cooking, refrigerating, drying, ventilating,
water supply and sanitary purposes, vehicles of all kinds,
powered musical instruments, powered household and kitchen
utensils, computers, data carriers and terminals, pagers,
power supplies, audio systems, electric steering and
suspension units, domestic power sources, emergency
lighting, grid load levelling equipment, hybrid equipment
containing fuel cells, industrial actuators, electronic
point of sale equipment, televisions, navigation aids,
powered telecommunications equipment, remote area power
supplies, power tools and appliances, power quality
conditioning equipment, satellite communication equipment,
sonar buoys, starting devices for internal combustion
engines, sound equipment, uninterruptable power supplies and
toys.
