Title:
NICKEL-COBALT-ALUMINUM COMPOSITE HYDROXIDE, PRODUCTION METHOD FOR NICKEL-COBALT-ALUMINUM COMPOSITE HYDROXIDE, AND LITHIUM-NICKEL-COBALT-ALUMINUM COMPOSITE OXIDE
Document Type and Number:
WIPO Patent Application WO/2020/152770
Kind Code:
A1
Abstract:
The purpose of the present invention is to reliably reduce the sodium content, and to provide a precursor of a positive electrode active material for a lithium ion secondary battery with which it is possible to increase the battery capacity. Provided is a nickel-cobalt-aluminum 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, cobalt and aluminum, or is composed of the primary particles and the secondary particles, said nickel-cobalt-aluminum composite hydroxide being characterized in that the sodium content of the nickel-cobalt-aluminum composite hydroxide is less than 0.0005 mass%.
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Inventors:
OSHITA HIROKO (JP)
RYOSHI KAZUOMI (JP)
RYOSHI KAZUOMI (JP)
Application Number:
PCT/JP2019/001796
Publication Date:
July 30, 2020
Filing Date:
January 22, 2019
Export Citation:
Assignee:
SUMITOMO METAL MINING CO (JP)
International Classes:
H01M4/525; C01G53/00
Foreign References:
| JP2015128004A | 2015-07-09 | |||
| JP2015191848A | 2015-11-02 | |||
| JP2016088834A | 2016-05-23 | |||
| JP2016162601A | 2016-09-05 |
Attorney, Agent or Firm:
KOIKE Akira et al. (JP)
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