POSITIVE ELECTRODE FOR ELECTRIC DEVICE, AND ELECTRIC DEVICE USING THE SAME

Title:

POSITIVE ELECTRODE FOR ELECTRIC DEVICE, AND ELECTRIC DEVICE USING THE SAME

Document Type and Number:

Japanese Patent JP2017102995

Kind Code:

A

Abstract:

PROBLEM TO BE SOLVED: To provide means which enables the reduction in battery internal resistance, and therefore enables the suppression of the reduction in battery capacity with the progress of a charge-discharge cycle (i.e. the enhancement in cycle endurance) in an electric device such as a lithium ion secondary battery.SOLUTION: A positive electrode for an electric device comprises: a positive electrode current collector; and a positive electrode active material layer formed on the surface of the positive electrode current collector. The positive electrode active material layer includes, as a positive electrode active material, a lithium transition metal composite oxide of a lamellar crystal structure, which includes manganese and nickel and allows lithium ions to go thereinto and go out therefrom. The lithium transition metal composite oxide has a crystallite size of 900 Å or more.SELECTED DRAWING: None

Inventors:

SAKAMOTO KAZUYUKI
YASUDA HIROBUMI
NISHIMURA NAHOKO
MURATA HIDENORI

Application Number:

JP2014082261A

Publication Date:

June 08, 2017

Filing Date:

April 11, 2014

Export Citation:

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Assignee:

NISSAN MOTOR

International Classes:

H01M4/525; H01M4/131; H01M4/1391; H01M4/36; H01M4/505; H01M10/052; H01M10/0567

Attorney, Agent or Firm:

Hatta International Patent Corporation

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