Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2022/139187
Kind Code:
A1
Abstract:
The present invention relates to a positive electrode active material comprising a compound represented by Formula 1, a method for manufacturing same, and a lithium secondary battery comprising same, wherein the molar content of lithium present in the structure of the positive electrode active material, measured through neutron diffraction analysis, is 1.01 to 1.15 with respect to 1 mole of the positive electrode active material. [chemical formula 1] Li1+a(NibM1
1-b)1-aO2, wherein in chemical formula 1, 0
Inventors:
PARK INCHUL (KR)
KIM HYUNGSUB (KR)
LEE SANGHYUK (KR)
SONG JUNG HOON (KR)
KIM JUNGHOON (KR)
NAM SANG CHEOL (KR)
CHOI KWON YOUNG (KR)
KWON OHMIN (KR)
SONG SEOKHYEON (KR)
KIM HYUNGSUB (KR)
LEE SANGHYUK (KR)
SONG JUNG HOON (KR)
KIM JUNGHOON (KR)
NAM SANG CHEOL (KR)
CHOI KWON YOUNG (KR)
KWON OHMIN (KR)
SONG SEOKHYEON (KR)
Application Number:
PCT/KR2021/016919
Publication Date:
June 30, 2022
Filing Date:
November 17, 2021
Export Citation:
Assignee:
POSCO (KR)
RES INST IND SCIENCE & TECH (KR)
POSCO CHEM CO LTD (KR)
RES INST IND SCIENCE & TECH (KR)
POSCO CHEM CO LTD (KR)
International Classes:
H01M4/525; C01G53/00; H01M4/505; H01M10/052
Foreign References:
| CN112072083A | 2020-12-11 | |||
| JP2016072188A | 2016-05-09 | |||
| JP2015135792A | 2015-07-27 | |||
| KR20200086995A | 2020-07-20 | |||
| KR20170100534A | 2017-09-04 |
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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