Electrodes for battery and method for fabricating the same

Details Electrodes for battery and method for fabricating the same Electrodes for battery and method for fabricating the same

1996-02-13

1998-02-24

Nuzzolillo, M.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

424236, 424245, H01M 464

Patent

active

057210730

ABSTRACT:
An electrode for a battery with small dispersion in its discharge capacity and excellent reliability is disclosed. It comprises a sheet of porous metal substrate having three-dimensional communicating spaces, and an active material. The substrate has a higher porosity layer occupying most part of the spaces connected to the first principal face and a lower porosity layer occupying the remaining part of the spaces connected to the second principal face; the lower porosity layer has a sufficiently smaller thickness than the higher porosity layer; and the active material is filled substantially in the higher porosity layer.

REFERENCES:
patent: 4251603 (1981-02-01), Matsumoto et al.
patent: 4582098 (1986-04-01), Matsumoto et al.
patent: 5196281 (1993-03-01), Pensabene et al.
patent: 5434020 (1995-07-01), Cooper
patent: 5487961 (1996-01-01), Strangeways et al.
patent: 5498496 (1996-03-01), Sasaki et al.

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