Rechargeable thin-film electrochemical generator

Details Rechargeable thin-film electrochemical generator Rechargeable thin-film electrochemical generator

1997-07-25

2000-09-19

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Having means to accommodate electrode expansion

429120, 429127, 429153, 429162, H01M 1050, H01M 612, H01M 400

Patent

active

061209309

ABSTRACT:
An improved electrochemical generator is disclosed. The electrochemical generator includes a thin-film electrochemical cell which is maintained in a state of compression through use of an internal or an external pressure apparatus. A thermal conductor, which is connected to at least one of the positive or negative contacts of the cell, conducts current into and out of the cell and also conducts thermal energy between the cell and thermally conductive, electrically resistive material disposed on a vessel wall adjacent the conductor. The thermally conductive, electrically resistive material may include an anodized coating or a thin sheet of a plastic, mineral-based material or conductive polymer material. The thermal conductor is fabricated to include a resilient portion which expands and contracts to maintain mechanical contact between the cell and the thermally conductive material in the presence of relative movement between the cell and the wall structure. The electrochemical generator may be disposed in a hermetically sealed housing.

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