Title:
LITHIUM ION SECONDARY BATTERY POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR MANUFACTURING SAME, AND LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/195790
Kind Code:
A1
Abstract:
[Problem] To provide a lithium ion secondary battery positive electrode active material having a high discharge capacity and excellent rate characteristics and charge/discharge cycle characteristics. [Solution] This positive electrode active material for lithium ion secondary batteries is represented by composition formula (1): Li1+aNibCocMdXeO2+α (in composition formula (1), M represents at least one selected from Al and Mn, X represents at least one metal element other than Li, Ni, Co, Al, and Mn, and a, b, c, d, e, and α are numbers satisfying -0.04≤a≤0.08, 0.80≤b<1.0, 0≤c<0.2, 0≤d<0.2, 0D2.
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Inventors:
TOYAMA TATSUYA (JP)
GUNJI AKIRA (JP)
TOKORO HISATO (JP)
TAKAHASHI SHIN (JP)
TAKANO SHUICHI (JP)
GUNJI AKIRA (JP)
TOKORO HISATO (JP)
TAKAHASHI SHIN (JP)
TAKANO SHUICHI (JP)
Application Number:
PCT/JP2020/010284
Publication Date:
October 01, 2020
Filing Date:
March 10, 2020
Export Citation:
Assignee:
HITACHI METALS LTD (JP)
International Classes:
H01M4/131; C01G53/00; H01M4/505; H01M4/525
Foreign References:
| CN108269970A | 2018-07-10 | |||
| JP2016095980A | 2016-05-26 | |||
| JP2018517250A | 2018-06-28 | |||
| JP2016081626A | 2016-05-16 | |||
| JP2005044743A | 2005-02-17 | |||
| JP2018503941A | 2018-02-08 | |||
| JPS5428251B2 | 1979-09-14 | |||
| JP6197981B1 | 2017-09-20 |
Other References:
See also references of EP 3950599A4
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