Title:
NICKEL MANGANESE COBALT COMPOSITE HYDROXIDE AND LITHIUM NICKEL MANGANESE COBALT COMPOSITE OXIDE
Document Type and Number:
Japanese Patent JP2022116213
Kind Code:
A
Abstract:
To provide a cathode active material which allows especially a sodium content to be surely decreased, and which enables further enhancement in battery characteristic by achievement of a high porosity and long life, and its precursor.SOLUTION: Nickel manganese cobalt composite hydroxide is a precursor of a cathode active material, comprising secondary particles resulting from agglomeration of primary particles containing nickel, manganese and cobalt, or the primary and secondary particles. In the nickel manganese cobalt composite hydroxide, the sodium content is less than 0.0005 mass%. The nickel manganese cobalt composite hydroxide particles have a porosity of over 50% to 80%.SELECTED DRAWING: Figure 1
Inventors:
OSHITA HIROKO
RYOSHI KAZUOMI
RYOSHI KAZUOMI
Application Number:
JP2022087159A
Publication Date:
August 09, 2022
Filing Date:
May 27, 2022
Export Citation:
Assignee:
SUMITOMO METAL MINING CO
International Classes:
H01M4/525; C01G53/00; H01M4/505
Domestic Patent References:
| JP2015191847A | 2015-11-02 | |||
| JP2016162601A | 2016-09-05 | |||
| JP2015162322A | 2015-09-07 | |||
| JP2015162323A | 2015-09-07 | |||
| JP2008257992A | 2008-10-23 | |||
| JP2016117625A | 2016-06-30 |
Attorney, Agent or Firm:
Akira Koike
Takaaki Kono
Akihiko Kitahara
Takaaki Kono
Akihiko Kitahara