Cathode active material, method of preparing the same, and...

Details Cathode active material, method of preparing the same, and... Cathode active material, method of preparing the same, and...

2006-02-15

2009-10-27

Weiner, Laura S (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S231200, C429S231300, C429S231500, C429S231600, C429S231800, C429S221000, C429S223000, C429S224000, C252S182100

Reexamination Certificate

active

07608362

ABSTRACT:
Composite cathode active materials having a large diameter active material and a small diameter active material are provided. The ratio of the average particle diameter of the large diameter active material to the average particle diameter of the small diameter active material ranges from about 6:1 to about 100:1. Mixing the large and small diameter active materials in a proper weight ratio improves packing density Additionally, including highly stable materials and highly conductive materials in the composite cathode active materials improves volume density, discharge capacity and high rate discharge capacity.

REFERENCES:
patent: 2000-82466 (2000-03-01), None
patent: 2000-082466 (2000-03-01), None
patent: 2002-319398 (2002-10-01), None
patent: 2003257416 (2003-09-01), None
patent: 2004-119218 (2004-04-01), None
patent: 10-2004-0026378 (2004-03-01), None
patent: 2004-0026378 (2004-03-01), None
Korean Patent Abstract; Laid-open No. 2004-0026378; Laid-open Date Mar. 31, 2004; in the name of Pak, et al.
Korean Office action dated Apr. 25, 2006 for corresponding Korean Patent application 10-2005-0012384 with English Translation.
Patent Abstracts of Japan, Publication No. 2002-319398, dated Oct. 31, 2002, in the name of Sho Ichiro Watanabe et al.
Chinese Office action dated Dec. 21, 2007, for corresponding Chinese application 2006100044217 with English translation indicating relevance of cited reference JP 2002-319398.

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