Title:
METHOD FOR MANUFACTURING PRECURSOR OF POSITIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY, PRECURSOR OBTAINED THEREBY, AND METHOD FOR MANUFACTURING POSITIVE-ELECTRODE ACTIVE MATERIAL FOR LITHIUM-ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/063152
Kind Code:
A1
Abstract:
Provided are a method for manufacturing a positive-electrode active material for a lithium-ion secondary battery that has excellent electrochemical characteristics and makes it possible to reduce the amount of greenhouse gases (GHGs) discharged, a precursor used in the aforementioned method, and a method for manufacturing the precursor. The present invention is a method for manufacturing a precursor of a positive-electrode active material for a lithium-ion secondary battery, the method having an oxidation step for mixing together a metal nickel powder and a lithium-containing compound, and then oxidizing the metal nickel powder after the mixing, the oxidation step resulting in formation of a precursor including nickel oxide having an oxidation rate of 10-70%, the oxidation rate indicating the proportion of the amount of oxidized nickel to the entire amount of Ni contained.
Inventors:
NAKABAYASHI TAKASHI (JP)
TOKORO HISATO (JP)
TAKANO SHUICHI (JP)
TOKORO HISATO (JP)
TAKANO SHUICHI (JP)
Application Number:
PCT/JP2023/034373
Publication Date:
March 28, 2024
Filing Date:
September 21, 2023
Export Citation:
Assignee:
PROTERIAL LTD (JP)
International Classes:
H01M4/525; C01G53/00
Domestic Patent References:
| WO2022209988A1 | 2022-10-06 | |||
| WO2012023501A1 | 2012-02-23 |
Foreign References:
| JP2013004234A | 2013-01-07 | |||
| JP2020158343A | 2020-10-01 |
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