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Title:
POSITIVE ELECTRODE ACTIVE MATERIAL COMPRISING LITHIUM NICKEL-BASED OXIDE DOPED WITH DOPING ELEMENT, AND SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/107363
Kind Code:
A1
Abstract:
The present invention provides a positive electrode active material for a secondary battery, comprising a lithium nickel-based oxide doped with a doping element (M'), wherein the doping element (M') is at least one selected from the group consisting of titanium (Ti) and magnesium (Mg), and when the doping element (M') is Ti, the doping content is 3,000 ppm to 5,000 ppm based on the total amount of the lithium nickel-based oxide excluding the doping element, and when the doping element (M') is Mg, the doping content is 500 ppm to 5,000 ppm based on the total amount of the lithium nickel-based oxide excluding the doping element, and when the doping element (M') is Ti and Mg, the total doping content is 3,500 ppm to 5,000 ppm based on the total amount of the lithium nickel-based oxide excluding the doping element.

Inventors:
HAN JUNGMIN (KR)
HAN GI BEOM (KR)
LEE SANG WOOK (KR)
KIM HAKYOON (KR)
BAEK SORA (KR)
JUNG WANG MO (KR)
Application Number:
PCT/KR2020/012792
Publication Date:
June 03, 2021
Filing Date:
September 22, 2020
Export Citation:
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Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M4/525; H01M4/505; H01M10/052
Domestic Patent References:
WO2018179936A12018-10-04
Foreign References:
KR20190128995A2019-11-19
KR20140081472A2014-07-01
KR20170117541A2017-10-23
JP4524339B22010-08-18
KR101534896B12015-07-08
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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