Positive electrode active material for lithium ion secondary...

Details Positive electrode active material for lithium ion secondary... Positive electrode active material for lithium ion secondary...

2006-04-11

2006-04-11

Yuan, Dah-Wei (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S218100, C429S231500, C429S231950

Reexamination Certificate

active

07026068

ABSTRACT:
Disclosed is a positive electrode active material for a lithium ion secondary battery, including lithium-transition metal composite oxide of a layer crystal structure, in which the lithium-transition metal composite oxide contains an element that improves conductivity of electrons in the lithium-transition metal composite oxide. Use of this positive electrode active material can improve cycle characteristics, high rate characteristics and thermal stability of lithium ion secondary batteries. Furthermore, by use of this positive electrode active material, gas generation in batteries can be decreased.

REFERENCES:
patent: 6723470 (2004-04-01), Barker et al.
patent: 2002/0039687 (2002-04-01), Barker et al.
patent: 2004/0157125 (2004-08-01), Takatsuji et al.
patent: 2004/0197654 (2004-10-01), Barker et al.
patent: 05-151998 (1993-06-01), None
patent: A 2000-21402 (2000-01-01), None
patent: 2003-20229 (2003-01-01), None

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