A charge storage device

A charge storage (1,51) device comprising: a first sheet electrode (21,35); a second sheet electrode (23,36) being opposed to and spaced apart from the first sheet electrode (21,35); a porous separator (25,46) disposed between the sheet electrodes (21,35;23,36); a sealed package e.g. a housing (2,55...

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Bibliographische Detailangaben
Hauptverfasser: VASSALLO, ANTHONY, MICHAEL, PANDOLFO, ANTHONY, GAETANO, JONES, PHILIP, ANDREW, PAUL, GEORGE, LANGE, PYNENBURG, RORY, ALBERT, JAMES, KESHISHIAN, SARKIS, MAHON, PETER, JOHN
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:A charge storage (1,51) device comprising: a first sheet electrode (21,35); a second sheet electrode (23,36) being opposed to and spaced apart from the first sheet electrode (21,35); a porous separator (25,46) disposed between the sheet electrodes (21,35;23,36); a sealed package e.g. a housing (2,55) for containing the electrodes (21,35;23,36), the separator (25;46) and an electrolyte in which the sheet electrodes (21,35;23,36) are immersed; and a first terminal and a second terminal (11,12;59,60) being electrically connected to the first sheet electrode (21,35) and the second sheet electrode (23,36) respectively and both extending from the package e.g. housing (2,55) to allow external electrical connection to the respective sheet electrodes (21,35;23,36), wherein the gravimetric FOM of the device is greater than about 2.1 Watts/gram. Also described is a method of manufacturing a charge storage device (1,51), the method comprising the steps of: providing a first sheet electrode (21,35); disposing a second sheet electrode (23,36) in opposition to and spaced apart from the first sheet electrode (21,35); disposing a porous separator (25,46) between the sheet electrodes (21,35;23,56); containing within a sealed package e.g. housing (2,55) the sheet electrodes (21,35;23,56), the separator (25,46) and an electrolyte, wherein the sheet electrodes (21,35;23,56) are immersed in the electrolyte; and electrically connecting a first terminal and a second terminal (11,12;59,60) to the first sheet electrode (21,35) and the second sheet electrode (23,36) respectively such that the terminals (11,12;59,60) extending from the package e.g. housing (2,55) to allow electrical connection to the respective sheet electrodes (21,35;23,56), wherein the gravimetric FOM of the device is greater than about 2.1 Watts/gram.