Cathode active material and non-aqueous electrolyte...

Details Cathode active material and non-aqueous electrolyte... Cathode active material and non-aqueous electrolyte...

2007-05-08

2007-05-08

Ryan, Patrick Joseph (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S218100

Reexamination Certificate

active

11132859

ABSTRACT:
A cathode active material and non-aqueous electrolyte secondary battery. The non-aqueous electrolyte secondary battery includes a positive electrode and a negative electrode which are electrochemically doped and dedoped with lithium; and an electrolyte disposed between the positive electrode and the negative electrode. The positive electrode contains a cathode active material including a mixture of: a first cathode active material represented by a general formula: LitCoMsO2where M represents a metal, 0≦s≦0.03, and 0.05≦t≦1.15; and a second cathode active material represented by a general formula: LixNi(1-y-z)CoyMnzAaO2where A represents a metal, 0.05≦x≦1.15, 0.15≦y+z≦0.70, 0.05≦z≦0.40, and 0≦a≦0.10.

REFERENCES:
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patent: 6805996 (2004-10-01), Hosoya
patent: 6818351 (2004-11-01), Sunagawa et al.
patent: 2005/0058588 (2005-03-01), Kang et al.
patent: 2001319652 (2001-11-01), None
patent: 2003242376 (2003-08-01), None

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