Nonaqueous electrolyte secondary battery

Details Nonaqueous electrolyte secondary battery Nonaqueous electrolyte secondary battery

2003-03-19

2008-03-18

Crepeau, Jonathan (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S231100, C429S232000

Reexamination Certificate

active

07344802

ABSTRACT:
A nonaqueous electrolyte secondary battery includes a positive electrode comprising a positive electrode material attached to a positive electrode current collector, a negative electrode and a nonaqueous electrolyte, wherein the positive electrode material comprises a positive electrode active material represented by LiaMnbNibCo1-2bO2(wherein a is 0≦a≦1.1, and b is 0<b≦0.5), a binder and an electrically conductive agent, wherein the binder is contained in the positive electrode material in a range of 0.8˜3 weight %, and the density of the positive electrode material is not less than 3.0 g/cm3.

REFERENCES:
patent: 6497979 (2002-12-01), Iijima et al.
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Zhonghua, Lu, et al.; “Layered Li[NixCo1-2xMnx]O2Cathode Materials for Lithium-Ion Batteries”;Electrochemical and Solid-State Letters; pp. A200-A203; Oct. 5, 2001.

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