Title:
二次電池用正極活物質、二次電池用正極および二次電池
Document Type and Number:
Japanese Patent JP5888378
Kind Code:
B2
Abstract:
This invention provides a positive electrode active material, which can provide a high capacitance and, at the same time, can improve stability or low-temperature properties, and process for producing the same and a battery. A positive electrode (21) comprises a positive electrode active material that comprises a lithium composite oxide comprising Li and at least one element of Co, Ni and Mn and contains in its surface part P and at least one element of Ni, Co, Mn, Fe, Al, Mg and Zn as a covering element. Preferably, the content of the covering element is higher in the surface than in the inside and is reduced from the surface toward the inside.
Inventors:
Lee Kun
Morita Nozomi
Oyama Ayo
Kiyohiko Suzuki
Kotaro Satori
Hideto Higashi
Yosuke Hosoya
Morita Koushi
Haruo Watanabe
Morita Nozomi
Oyama Ayo
Kiyohiko Suzuki
Kotaro Satori
Hideto Higashi
Yosuke Hosoya
Morita Koushi
Haruo Watanabe
Application Number:
JP2014174616A
Publication Date:
March 22, 2016
Filing Date:
August 28, 2014
Export Citation:
Assignee:
ソニー株式会社
International Classes:
H01M4/525; H01M4/131; H01M4/485; H01M4/505; H01M10/052
Domestic Patent References:
| JP2006127932A | ||||
| JP2003007299A | ||||
| JP2004087299A |
Attorney, Agent or Firm:
Yoichiro Fujishima
Yasushi Santanzaki
Yasushi Santanzaki
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