Title:
RECHARGEABLE LITHIUM BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/140428
Kind Code:
A1
Abstract:
Provided is a rechargeable lithium battery comprising: an electrolyte solution comprising a non-aqueous organic solvent, a lithium salt, and an additive; a positive electrode comprising a positive electrode active material; and a negative electrode comprising a negative electrode active material. The additive comprises at least one from among a first compound and a second compound. The first compound is a substituted or unsubstituted C1-C20 alkyl group comprising at least one nitrile group, a substituted or unsubstituted C2-C20 alkenyl group comprising at least one nitrile group, a substituted or unsubstituted C2-C20 alkynyl group comprising at least one nitrile group, a substituted or unsubstituted C1-C20 alkoxy group comprising at least one nitrile group, a substituted or unsubstituted C6-C20 aryl group comprising at least one nitrile group, or a combination thereof. The second compound is a cyclic phosphazene. The positive electrode active material comprises a cobalt-free lithium nickel-manganese oxide.
Inventors:
RA HANA (KR)
LEE TAE JIN (KR)
KIM MINSEO (KR)
WOO MYUNGHEUI (KR)
PARK HYEJIN (KR)
RYU BOKYUNG (KR)
LEE TAE JIN (KR)
KIM MINSEO (KR)
WOO MYUNGHEUI (KR)
PARK HYEJIN (KR)
RYU BOKYUNG (KR)
Application Number:
PCT/KR2022/004543
Publication Date:
July 27, 2023
Filing Date:
March 30, 2022
Export Citation:
Assignee:
SAMSUNG SDI CO LTD (KR)
International Classes:
H01M10/0567; H01M4/505; H01M4/525; H01M10/052
Domestic Patent References:
| WO2021065173A1 | 2021-04-08 |
Foreign References:
| CN113381068A | 2021-09-10 | |||
| KR20160049894A | 2016-05-10 | |||
| KR20210119143A | 2021-10-05 | |||
| US20190173124A1 | 2019-06-06 |
Attorney, Agent or Firm:
PANKOREA PATENT AND LAW FIRM (KR)
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