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1. WO2020067779 - NONAQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Publication Number WO/2020/067779
Publication Date 02.04.2020
International Application No. PCT/KR2019/012608
International Filing Date 27.09.2019
IPC
H01M 10/0567 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0567characterised by the additives
H01M 10/0569 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0569characterised by the solvents
H01M 10/0568 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0568characterised by the solutes
H01M 10/052 2010.01
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
CPC
H01M 10/052
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
052Li-accumulators
H01M 10/0567
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0567characterised by the additives
H01M 10/0568
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0568characterised by the solutes
H01M 10/0569
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
10Secondary cells; Manufacture thereof
05Accumulators with non-aqueous electrolyte
056characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
0564the electrolyte being constituted of organic materials only
0566Liquid materials
0569characterised by the solvents
Applicants
  • 주식회사 엘지화학 LG CHEM, LTD. [KR]/[KR]
Inventors
  • 오정우 OH, Jeong Woo
  • 이철행 LEE, Chul Haeng
  • 김형태 KIM, Hyung Tae
Agents
  • 특허법인 태평양 BAE, KIM & LEE IP GROUP
Priority Data
10-2018-011647528.09.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) NONAQUEOUS ELECTROLYTE AND LITHIUM SECONDARY BATTERY COMPRISING SAME
(FR) ÉLECTROLYTE NON AQUEUX ET BATTERIE SECONDAIRE AU LITHIUM LE COMPRENANT
(KO) 비수성 전해액 및 이를 포함하는 리튬 이차전지
Abstract
(EN)
The present invention relates to a nonaqueous electrolyte and a lithium secondary battery comprising same and, particularly, to a nonaqueous electrolyte and a lithium secondary battery comprising same, the nonaqueous electrolyte comprising: 1.2 M to 3.3 M of a lithium salt; a first organic solvent containing ethylene carbonate; a second organic solvent excluding ethylene carbonate; and an oligomer represented by chemical formula 1 as a first additive, wherein the first organic solvent is contained in the amount of 0.1wt% to 12wt% on the basis of the total weight of the nonaqueous electrolyte.
(FR)
La présente invention concerne un électrolyte non aqueux et une batterie secondaire au lithium le comprenant et, en particulier, un électrolyte non aqueux et une batterie secondaire au lithium le comprenant, l'électrolyte non aqueux comprenant : 1,2 M à 3,3 M d'un sel de lithium; un premier solvant organique contenant du carbonate d'éthylène; un second solvant organique excluant le carbonate d'éthylène; et un oligomère représenté par la formule chimique 1 en tant que premier additif, le premier solvant organique étant contenu dans la quantité de 0,1 % en poids à 12 % en poids sur la base du poids total de l'électrolyte non aqueux.
(KO)
본 발명은 비수성 전해액 및 이를 포함하는 리튬 이차전지에 관한 것으로, 구체적으로 1.2M 내지 3.3M의 리튬염, 에틸렌 카보네이트로 이루어진 제1 유기용매, 에틸렌 카보네이트를 제외한 제2 유기용매 및 제1 첨가제로 화학식 1로 표시되는 올리고머를 포함하며, 상기 제1 유기용매는 비수성 전해액 전체 중량을 기준으로 0.1 중량% 내지 12 중량%로 포함되는 비수성 전해액 및 이를 포함하는 리튬 이차전지에 관한 것이다.
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