LITHIUM COBALT-BASED POSITIVE ELECTRODE ACTIVE MATERIAL, METHOD FOR PREPARING SAME, POSITIVE ELECTRODE COMPRISING SAME, AND SECONDARY BATTERY

WIPO Patent Application WO/2019/093863

A3

The present invention relates to a method for preparing a lithium cobalt-based positive electrode active material and a positive electrode active material prepared thereby, the method comprising a step for dry-mixing particles of lithium cobalt oxide represented by chemical formula 1 and lithium metal oxide particles of at least one selected from the group consisting of lithium aluminum oxide, lithium zirconium oxide, and lithium titanium oxide, followed by thermal treatment.

JO CHI HO (KR)
YOU MIN KYU (KR)
PARK SUNG BIN (KR)
HUR HYUCK (KR)
HWANG JIN TAE (KR)
JUNG WANG MO (KR)

PCT/KR2018/013819

June 27, 2019

November 13, 2018

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LG CHEMICAL LTD (KR)

C01G53/00; H01M4/485; H01M4/525; H01M10/052

KR20060040298A	2006-05-10
KR20130065694A	2013-06-19

WU, NAITENG: "Solvothermal coating LiNi0.8Co0.15A10.0502 microspheres with nanoscale Li2Ti03 shell for long lifespan Li-ion battery cathode materials", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 665, 2016, pages 48 - 56, XP029411707
YI, XIN: "Effective enhancement of electrochemical performance for spherical spinel LiMn204 via Li ion conductive Li2Zr03 coating", ELECTROCHIMICA ACTA, vol. 134, 2014, pages 143 - 149, XP028849800
WANG, CHUNGUANG: "Li2Zr03 coated LiNi1/3Co1/3Mn1/302 for high performance cathode material in lithium batteries", ELECTROCHIMICA ACTA, vol. 119, 2014, pages 236 - 242, XP028613416
See also references of EP 3686160A4

BAE, KIM & LEE IP GROUP (KR)

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