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Ultra-thin electromechanical energy storage devices

An energy storage device, electrochemical technology, applied in the field of electrochemical systems, can solve problems such as multi-space

Inactive Publication Date: 2003-04-02
AVX CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although useful for its purpose, the device in the '203 patent only discloses a single capacitive battery "isolated from each other in a simple manner"
(See U.S. Patent No. 4,488,203, Col. 2, Lines 3-5) Additionally, while capable of being stacked to form multiple capacitor cells in series, the device in the '203 patent requires significantly more space and creates additional weight that a fully integrated multiple capacitor battery in a single component does not

Method used

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  • Ultra-thin electromechanical energy storage devices

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[0067] The double-layer capacitor energy storage device consists of six cells. The structure is shown in Figure 1-5. The cells are connected into two battery packs connected in series. Each battery pack consists of three bipolar connected cells. Each cell consists of: an anode and cathode, a proton-conducting polymer membrane between the electrodes, a single-layer carbon / plastic composite conductive film, and common and terminal current collectors. The anode and cathode consist of high surface area carbon powder and an aqueous solution of sulfonic acid. The current collectors include a first layer of conductive carbon composite film and a second outer metal layer, the first layer being in contact with the outer electrodes of each battery pack. The dimensions of this part are 34×34×0.8mm.

[0068] Figure 10 provides a comparison table of several materials that can be used in a double layer common or terminal current collector with respect to their lateral conductivity and d...

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Abstract

An ultra-thin electrochemical multi-cell energy storage device is provided within a single lightweight flexible casing. The energy storage device utilizes perforated isolating frames to form its internal structure. By adhering multi-layer current collectors to the perforated isolating frames, filling the openings formed therein with electrode material and stacking the current collectors with an electrolyte between the electrodes the assembly generated places the multiple cells in a plurality of stacks and all of the cells may be in series, parallel or some combination thereof by virtue of the assembly's construction. The external current collectors have good lateral conductivity due to their composite structure and provide for pressure insensitive interfacial contacts. The energy storage device advantageously exhibits low resistance, low ESR, and a high voltage / capacity while preferably remaining less than one millimeter thick.

Description

[0001] This application claims priority to Provisional Patent Application USSN 60 / 168,761, filed December 6, 1999, entitled "Novel Enclosures for Electrochemical Capacitors and Batteries," the entirety of which is hereby incorporated by reference Cited as reference. technical field [0002] The present invention generally relates to electrochemical systems for storing and releasing electrical energy. The invention particularly relates to electrochemical systems, such as capacitors or batteries, used in electronic circuits. The invention more particularly relates to electrochemical systems, such as capacitors or batteries, for operation in electronic circuits, with non-liquid, organic solutions, aqueous solutions, or protic electrolyte materials disposed between electrodes. [0003] Still further, the present invention relates to an improved structure of a bipolar assembly which addresses deficiencies in existing bipolar structures. The invention r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/016H01G9/28H01M6/40H01M10/04H01M50/121H01M50/529
CPCY02E60/13Y02E60/12H01G11/72H01M10/0436H01M6/40H01G11/70Y10T29/49115Y10T29/49108Y02E60/10Y02P70/50
Inventor 阿里·迈塔夫乔尔·兰奈尔斯·A·弗莱舍戴维·利夫希茨尤金·佩彻勒伊莱·R·乔德什朱斯特·梅纳森巴拉特·雷沃尔
Owner AVX CORP
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