Lithium secondary cell

Details Lithium secondary cell Lithium secondary cell

2005-09-06

2005-09-06

Cantelmo, Gregg (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S231100, C429S223000

Reexamination Certificate

active

06939644

ABSTRACT:
To increase safety against overcharging of a lithium secondary cell which uses a lithium-nickel compound oxide as a positive electrode active material. A lithium secondary cell comprises a casing (2,3) and a lithium secondary cell element (1) using a lithium-nickel compound oxide as a positive electrode active material, accommodated in the casing. The specific surface area of the lithium-nickel compound oxide is from 0.1 to 10 m2/g, and a surface area capacity ratio S/C, i.e. a ratio of a cell surface area S (cm2) to a cell capacity (mAh), is from 0.05 to 5.

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Machine Translation of JP 2000-195557 from JPO Internet site, Jul. 2000.
U.S. Appl. No. 10/727,661, filed Dec. 5, 2003.
U.S. Appl. No. 10/227,812, filed Aug. 27, 2002, Aoshima et al.

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