Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARING METHOD THEREFOR, POSITIVE ELECTRODE, COMPRISING SAME, FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2019/074305
Kind Code:
A3
Abstract:
The present invention relates to a method for preparing a positive electrode active material, the method comprising the steps of: mixing a nickel-containing hydroxide precursor containing 65 mol% or more of nickel relative to the total number of moles of transition metals and a lithium raw material, followed by primary thermal treatment, to prepare a nickel-containing lithium transition metal oxide; mixing a B and C-containing raw material and a Co-containing raw material with the nickel-containing lithium transition metal oxide to form a mixture; and subjecting the mixture to secondary thermal treatment to form a coating material containing B and Co on a surface of the lithium-transition metal oxide, to a positive electrode active material prepared by the preparation method and having a coating material containing a particular content of Co, to a positive electrode, containing the positive electrode active material, for a lithium secondary battery, and to a lithium secondary battery.
Inventors:
KIM WON TAE (KR)
SHIN SUN SIK (KR)
YOON YEO JUNE (KR)
PARK HONG KYU (KR)
KANG SEONG HOON (KR)
YU JONG YEOL (KR)
SHIN SUN SIK (KR)
YOON YEO JUNE (KR)
PARK HONG KYU (KR)
KANG SEONG HOON (KR)
YU JONG YEOL (KR)
Application Number:
PCT/KR2018/011984
Publication Date:
June 06, 2019
Filing Date:
October 11, 2018
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/36; C01B32/991; C01G51/04; C01G53/00; H01M4/525; H01M4/62
Domestic Patent References:
| WO2015186321A1 | 2015-12-10 |
Foreign References:
| KR20110063335A | 2011-06-10 | |||
| KR20150050458A | 2015-05-08 | |||
| JP2015133318A | 2015-07-23 | |||
| KR20030088246A | 2003-11-19 |
Attorney, Agent or Firm:
BAE, KIM & LEE IP GROUP (KR)
Download PDF: