Title:
LITHIUM-CONTAINING TRANSITION METAL COMPLEX OXIDE, POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY CELL, POSITIVE ELECTRODE FOR LITHIUM SECONDARY CELL, LITHIUM SECONDARY CELL, AND METHOD FOR MANUFACTURING LITHIUM-CONTAINING TRANSITION METAL COMPLEX OXIDE
Document Type and Number:
WIPO Patent Application WO/2019/107545
Kind Code:
A1
Abstract:
This lithium-containing transition metal complex oxide comprises secondary particles in which primary particles that can be doped with lithium ions and de-doped are aggregated, and satisfies the conditions below. (1) The lithium-containing transition metal complex oxide is represented by formula (I). (I): Li[Lix(Ni(1–y–z–w)CoyMnzMw)1-x]O2. (2) When a specific γ is calculated for each of the surface of the secondary particles and the inside of the secondary particles from XPS analysis, γ1 and γ2 satisfy expression (II), where γ1 is the γ value of the surface of the secondary particles and γ2 is the γ value of the inside of the secondary particles. (II): 0.3 ≤ γ1/γ2 ≤ 1.0.
Inventors:
ARIMURA TAKASHI (JP)
TAKAMORI KENJI (JP)
KAGEURA JUN-ICHI (JP)
SATO YUICHI (JP)
MAEDA YUSUKE (JP)
TAKAMORI KENJI (JP)
KAGEURA JUN-ICHI (JP)
SATO YUICHI (JP)
MAEDA YUSUKE (JP)
Application Number:
PCT/JP2018/044194
Publication Date:
June 06, 2019
Filing Date:
November 30, 2018
Export Citation:
Assignee:
SUMITOMO CHEMICAL CO (JP)
TANAKA CHEMICAL CORP (JP)
TANAKA CHEMICAL CORP (JP)
International Classes:
C01G53/00; H01M4/505; H01M4/525
Domestic Patent References:
| WO2016038983A1 | 2016-03-17 | |||
| WO2015076376A1 | 2015-05-28 |
Foreign References:
| JP2017084628A | 2017-05-18 | |||
| JP2016084279A | 2016-05-19 | |||
| JP2017230733A | 2017-11-30 | |||
| JP2004327246A | 2004-11-18 | |||
| JP2016115658A | 2016-06-23 | |||
| JP2002201028A | 2002-07-16 | |||
| US20170054147A1 | 2017-02-23 | |||
| US20040265693A1 | 2004-12-30 | |||
| US10297824B2 | 2019-05-21 |
Other References:
YOSHIO WASEDA: "X-ray structure analysis-determine arrangement of atoms", 30 April 2002
See also references of EP 3718973A4
See also references of EP 3718973A4
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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