Positive electrode active material for nonaqueous electrolyte secondary battery, and nonaqueous electrolyte secondary battery

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United States of America Patent

PATENT NO 9997774
SERIAL NO

14965557

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A positive electrode active material for a nonaqueous electrolyte secondary battery contains a lithium composite oxide particle as a main component, in which a ratio of Ni to a total number of moles of all metal elements other than Li is greater than 30 mol %. The lithium composite oxide particle includes a secondary particle being aggregation of primary particles having an average particle diameter of 1 μm or more, and a shell constituted around the secondary particle. A surface layer void is present between the secondary particle and the shell.

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Patent Owner(s)

  • PANASONIC CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiratsuka, Hidekazu Osaka, JP 42 280

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