Title:
POSITIVE ELECTRODE ACTIVE MATERIAL FOR SECONDARY BATTERY, METHOD FOR PRODUCING SAME, AND LITHIUM SECONDARY BATTERY INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2020/209685
Kind Code:
A1
Abstract:
The present invention pertains to a positive electrode active material for a secondary battery, the positive electrode active material being a lithium composite transition metal oxide containing nickel (Ni), cobalt (Co), and manganese (Mn), wherein nickel (Ni) constitutes at least 60 mol% of the metals other than lithium in the lithium composite transition metal oxide, a coating layer is formed on the surfaces of the particles of the lithium composite transition metal oxide, and the coating layer contains a lithium-polymer compound formed through a reaction of a lithium by-product and a polymer.
Inventors:
AHN DONG JOON (KR)
LIM JUNG HO (KR)
YOON YEO JUNE (KR)
LIM JUNG HO (KR)
YOON YEO JUNE (KR)
Application Number:
PCT/KR2020/004936
Publication Date:
October 15, 2020
Filing Date:
April 10, 2020
Export Citation:
Assignee:
LG CHEMICAL LTD (KR)
International Classes:
H01M4/36; C01G53/00; C08J3/20; C08L33/26; C08L79/08; H01M4/525; H01M4/62; H01M10/052
Domestic Patent References:
| WO2018191026A1 | 2018-10-18 |
Foreign References:
| KR20170100289A | 2017-09-04 | |||
| KR20170061417A | 2017-06-05 | |||
| KR20170060515A | 2017-06-01 | |||
| KR20170109285A | 2017-09-29 | |||
| KR101490294B1 | 2015-02-06 |
Other References:
See also references of EP 3933980A4
Attorney, Agent or Firm:
BAE, KIM & LEE IP (KR)
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