Positive electrode active material for non-aqueous...

Details Positive electrode active material for non-aqueous... Positive electrode active material for non-aqueous...

2011-08-16

2011-08-16

Weiner, Laura (Department: 1726)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S231900, C429S231950, C429S218100, C429S163000, C252S182100

Reexamination Certificate

active

07998620

ABSTRACT:
An object of the present invention is to provide a positive electrode active material for a non-aqueous electrolyte secondary battery, which can solve the problem that the capacity remarkably decreases with an increase of the number of charging and discharging cycles in a high capacity non-aqueous electrolyte secondary battery using a positive electrode active material for a non-aqueous electrolyte secondary battery made of particles of an alkali metal composite oxide containing nickel.A positive electrode active material for a non-aqueous electrolyte secondary battery, comprising a nickel-alkali metal-containing composite oxide having cracks on the surface of primary particles is used.

REFERENCES:
patent: 6348284 (2002-02-01), Bernard et al.
patent: 1719639 (2006-01-01), None
patent: 7-105950 (1995-04-01), None
patent: 2000-203844 (2000-07-01), None
Chinese Office Action, with English translation, issued in Chinese Patent Application No. 200710186473.5, mailed Jun. 8, 2010.
Arai, et al., “Characterization and cathode performance of Li1−XNi1+xO2prepared with the excess lithium method,” Solid State Ionics, vol. 80, 1995, pp. 261-269.
Kang, et al., “Electrodes with High Power and High Capacity for Rechargeable Lithium Batteries,” Science AAAs, Feb. 17, 2006.
Kang, et al., “Electrodes with High Power and High Capacity for Rechargeable Lithium Batteries,” Science AAAs, Feb. 17, 2006, Supporting Online Material.

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