Title:
METHOD FOR PRODUCING NICKEL COBALT COMPOSITE OXIDE, NICKEL COBALT COMPOSITE OXIDE, POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE FOR ALL-SOLID LITHIUM-ION SECONDARY BATTERY, AND ALL-SOLID LITHIUM-ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2021/020531
Kind Code:
A1
Abstract:
Provided is a positive electrode which is for an all-solid lithium-ion secondary battery, and can reduce the internal resistance of the all-solid-state lithium-ion secondary battery. The positive electrode is provided with an active material layer including a positive electrode active material and a solid electrolyte material. The positive electrode active material comprises secondary particles formed by agglomerating a plurality of primary particles each containing a lithium transition metal composite oxide. The smoothness of the secondary particles is greater than 0.73 and the circularity of the secondary particles is greater than 0.83.
Inventors:
MIYAMOTO YOSHITERU (JP)
SHIRAISHI TAIGA (JP)
KAWAI KENTA (JP)
YOSHIDA YASUHIRO (JP)
MURAYAMA MASAHIRO (JP)
SHIRAISHI TAIGA (JP)
KAWAI KENTA (JP)
YOSHIDA YASUHIRO (JP)
MURAYAMA MASAHIRO (JP)
Application Number:
PCT/JP2020/029327
Publication Date:
February 04, 2021
Filing Date:
July 30, 2020
Export Citation:
Assignee:
NICHIA CORP (JP)
International Classes:
H01M4/525; C01G53/00; H01M4/36; H01M4/505; H01M4/62; H01M10/052; H01M10/0562
Domestic Patent References:
| WO2012096059A1 | 2012-07-19 | |||
| WO2007004590A1 | 2007-01-11 | |||
| WO2013183711A1 | 2013-12-12 | |||
| WO2016180288A1 | 2016-11-17 |
Foreign References:
| JP2015147689A | 2015-08-20 | |||
| JP2016210674A | 2016-12-15 | |||
| JP2002075367A | 2002-03-15 | |||
| JP2011146390A | 2011-07-28 | |||
| JP2006012433A | 2006-01-12 | |||
| JP2019141366A | 2019-08-29 |
Attorney, Agent or Firm:
YAMAO, Norihito et al. (JP)
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