Title:
ADDITIVE FOR POSITIVE ELECTRODE OF LITHIUM SECONDARY BATTERY, METHOD FOR MANUFACTURING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2022/114670
Kind Code:
A1
Abstract:
Provided is an additive for a positive electrode of a lithium secondary battery, the additive comprising a lithium transition metal oxide, Li3PO4, Li5AlO4, and Li3BO3. The lithium transition metal oxide is doped with aluminum. This additive including Li3PO4, Li5AlO4, and Li3BO3 along with the lithium transition metal oxide has the function of improving battery stability when applied to a positive electrode of a lithium secondary battery. Specifically, typical lithium transition metal oxides, when applied to a positive electrode of a lithium secondary battery, have the problem of reducing stability, such as by causing side reactions with an electrolyte and thereby generating gas in the battery. However, the Li3PO4, Li5AlO4, and Li3BO3 are uniformly mixed with the lithium transition metal oxide or form a portion of a coating layer, and the lithium transition metal oxide is doped with a portion of the aluminum, and thus side reactions between the lithium transition metal oxide and the electrolyte are suppressed.
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Inventors:
JUNG HAE JUNG (KR)
LEE BORAM (KR)
YOO TAE GU (KR)
JUNG WANG MO (KR)
PARK BYUNGCHUN (KR)
LEE BORAM (KR)
YOO TAE GU (KR)
JUNG WANG MO (KR)
PARK BYUNGCHUN (KR)
Application Number:
PCT/KR2021/016974
Publication Date:
June 02, 2022
Filing Date:
November 18, 2021
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M4/62; C01B25/30; C01B35/12; C01F7/04; C01G53/00; H01M4/02; H01M10/052
Foreign References:
| KR20190064397A | 2019-06-10 | |||
| KR20190059242A | 2019-05-30 | |||
| KR20190059115A | 2019-05-30 | |||
| KR100595362B1 | 2006-06-30 | |||
| KR20140092739A | 2014-07-24 | |||
| KR20200161400A | 2020-11-26 | |||
| KR20210156630A | 2021-12-27 | |||
| KR20140092739A | 2014-07-24 |
Attorney, Agent or Firm:
KIM, Sung Ho (KR)
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