Cell comprising spirally wound electrodes

Details Cell comprising spirally wound electrodes Cell comprising spirally wound electrodes

1996-11-08

2000-04-18

Maples, John S.

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

429206, 429245, H01M 1024

Patent

active

060513330

ABSTRACT:
A cell comprising an electrode body having positive and negative electrodes which are spirally wound with interposing a separator therebetween and a cell case in which the electrode body is inserted, wherein a pair of the negative electrodes face respective surfaces of the positive electrode through the separator, and the negative electrodes are in contact with each other substantially in the second and subsequent turns, or wherein the negative electrode comprises a metal substrate and a pair of layers of electrode active material formed on both surfaces of the substrate, provided that the negative electrode which is present in at least one of the innermost and outermost turns of electrode body carries the layer of the electrode active material only on one side of the substrate, and each layer of the electrode active material of the negative electrode faces the positive electrode through the separator.

REFERENCES:
patent: 5008165 (1991-04-01), Schmode

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