Secondary cell with improved electrode jelly-roll structure

Details Secondary cell with improved electrode jelly-roll structure Secondary cell with improved electrode jelly-roll structure

2006-06-13

2006-06-13

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

C429S164000, C429S130000, C429S254000, C029S623100, C029S623500

Reexamination Certificate

active

07060387

ABSTRACT:
A secondary cell capable of ensuring thermal and mechanical stabilities required for a high-capacity cell with a simple structure is provided. The secondary cell includes: a can; and an electrode jelly-roll wound with two different electrodes and a separator interposed between the electrodes therein and accommodated in the can, the outer surface of the electrode jelly-roll being wound around one more turn with the separator. Only the separator is wound at the core of the electrode jelly-roll to form a rod-like stability member which is cured by absorbing heat generated from the cell. The separator wound at the core of the electrode jelly-roll is continuous from a portion of the separator which is stacked with the two different electrodes.

REFERENCES:
patent: 5571632 (1996-11-01), Teramoto
patent: 6114059 (2000-09-01), Watanabe et al.
patent: 8-153542 (1996-06-01), None
patent: 08-153542 (1996-06-01), None
patent: 8-273698 (1996-10-01), None

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