Title:
NICKEL-MANGANESE-COBALT COMPOSITE HYDROXIDE, PRODUCTION METHOD FOR NICKEL-MANGANESE-COBALT COMPOSITE HYDROXIDE, AND LITHIUM-NICKEL-MANGANESE-COBALT COMPOSITE OXIDE
Document Type and Number:
WIPO Patent Application WO/2020/152771
Kind Code:
A1
Abstract:
The purpose of the present invention is to reliably reduce the sodium content, and to provide a positive electrode active material and a precursor thereof with which it is possible to obtain a high-capacity lithium ion secondary battery. Provided is a nickel-manganese-cobalt composite hydroxide that is a precursor for a positive electrode active material and is composed of secondary particles obtained by aggregating primary particles containing nickel, manganese and cobalt, or is composed of the primary particles and the secondary particles, said nickel-manganese-cobalt composite hydroxide being characterized in that the sodium content of the nickel-manganese-cobalt composite hydroxide is less than 0.0005 mass%.
Inventors:
OSHITA HIROKO (JP)
RYOSHI KAZUOMI (JP)
RYOSHI KAZUOMI (JP)
Application Number:
PCT/JP2019/001797
Publication Date:
July 30, 2020
Filing Date:
January 22, 2019
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
H01M4/525; C01G53/00; H01M4/505
Foreign References:
| JP2016162601A | 2016-09-05 | |||
| JP2015162322A | 2015-09-07 | |||
| JP2015191847A | 2015-11-02 | |||
| JP2015191844A | 2015-11-02 | |||
| JP2016117625A | 2016-06-30 |
Attorney, Agent or Firm:
KOIKE Akira et al. (JP)
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