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Title:
LITHIUM METAL COMPLEX OXIDE POWDER, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERIES, POSITIVE ELECTRODE FOR LITHIUM SECONDARY BATTERIES, AND LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2020/130123
Kind Code:
A1
Abstract:
This lithium metal complex oxide powder satisfies requirements (1)-(3). Requirement (1): To satisfy compositional formula (I): Li[Lix(Ni(1-y-z-w)CoyMnzMw)1-x]O2 (wherein, M represents one or more elements selected from the group consisting of Fe, Cu, Ti, Mg, Al, W, B, Mo, Nb, Zn, Sn, Zr, Ga, La, and V, and -0.1≤x≤0.2, 0≤y≤0.4, 0≤z≤0.4, and 0≤w≤0.1 are satisfied). Requirement (2): The average primary particle size is 1-7 µm. Requirement (3): The ratio (R1/Ra) of the average primary particle size represented by R1 and the average crystallite size represented by Ra is larger than 5.0 but not larger than 20.

Inventors:
KURODA TOMOYA (JP)
Application Number:
PCT/JP2019/050015
Publication Date:
June 25, 2020
Filing Date:
December 20, 2019
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
International Classes:
C01G53/00; H01M4/36; H01M4/505; H01M4/525
Domestic Patent References:
WO2015182665A12015-12-03
WO2016060105A12016-04-21
WO2018047946A12018-03-15
WO2018221442A12018-12-06
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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