Title:
METHOD FOR EVALUATING QUALITY OF POSITIVE ELECTRODE ACTIVE MATERIAL, POSITIVE ELECTRODE ACTIVE MATERIAL, AND METHOD FOR MANUFACTURING POSITIVE ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2024/072154
Kind Code:
A1
Abstract:
The present invention relates to: a method for evaluating the quality of a positive electrode active material, the method comprising (A) a step of determining as a good product, when a Raman shift value of a peak corresponding to the A1g vibration mode of LiNiO2 in the Raman spectrum of the surface of the positive electrode active material satisfies preset criteria for the quality evaluation of a positive electrode active material; a positive electrode active material which is determined as a good product by the method and can further improve the performance of a battery; and a method for manufacturing a positive electrode, comprising a step of evaluating the quality of a positive electrode active material by the method for evaluating the quality of a positive electrode active material.
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Inventors:
KIM SANG JUN (KR)
JUNG WON SIG (KR)
BAEK HYEON HUI (KR)
LEE EUNG JU (KR)
LEE JEONG KYU (KR)
OH SUNG JOON (KR)
JUNG WON SIG (KR)
BAEK HYEON HUI (KR)
LEE EUNG JU (KR)
LEE JEONG KYU (KR)
OH SUNG JOON (KR)
Application Number:
PCT/KR2023/015122
Publication Date:
April 04, 2024
Filing Date:
September 27, 2023
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/525; G01N21/65; G01N21/88; H01M4/02; H01M4/1391; H01M4/36
Foreign References:
| JP2016076294A | 2016-05-12 | |||
| KR20180121266A | 2018-11-07 | |||
| KR20080074227A | 2008-08-12 | |||
| KR20170128658A | 2017-11-23 | |||
| JP2005336000A | 2005-12-08 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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