Nonaqueous electrolyte secondary battery

Details Nonaqueous electrolyte secondary battery Nonaqueous electrolyte secondary battery

2011-01-18

2011-01-18

Weiner, Laura S (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S233000, C429S245000, C429S247000, C429S231100, C429S231300, C429S231500, C429S231600, C429S094000

Reexamination Certificate

active

07871728

ABSTRACT:
A nonaqueous electrolyte secondary battery of the present invention includes a positive electrode plate21having an uncoated part along at least one long side of a continuous positive electrode substrate211coated with a positive electrode mixture layer212containing a positive electrode active material. In the nonaqueous electrolyte secondary battery, the positive electrode mixture layer212includes a lithium transition-metal compound capable of insertion and separation of lithium ion and 5 to 15% by mass of a conductive material with respect to the positive electrode mixture, the conductive material contains 70% by mass or more of flaked graphite particles with an average particle diameter (D50) of 5 to 30 μm and an average thickness of 0.1 to 1.0 μm with respect to the whole amount of the conductive materials, and a packing density of the positive electrode mixture layer is 2.00 to 2.80 g/cc.

REFERENCES:
patent: 7727674 (2010-06-01), Yanagida et al.
patent: 07-147159 (1995-06-01), None
patent: 07-147159 (1995-06-01), None
patent: 09-027344 (1997-01-01), None
patent: 10-233205 (1998-09-01), None
patent: 2000-058066 (2000-02-01), None

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