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1. WO2022010281 - NONAQUEOUS ELECTROLYTE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME

Publication Number WO/2022/010281
Publication Date 13.01.2022
International Application No. PCT/KR2021/008706
International Filing Date 08.07.2021
IPC
H01M 10/0567 2010.1
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 2010.1
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 4/525 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
52of nickel, cobalt or iron
525of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
H01M 4/505 2010.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4Electrodes
02Electrodes composed of, or comprising, active material
36Selection of substances as active materials, active masses, active liquids
48of inorganic oxides or hydroxides
50of manganese
505of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
H01M 10/052 2010.1
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
Applicants
  • 주식회사 엘지에너지솔루션 LG ENERGY SOLUTION, LTD. [KR]/[KR]
Inventors
  • 이정민 LEE, Jung Min
  • 임영민 LIM, Young Min
  • 이철행 LEE, Chul Haeng
Agents
  • 특허법인 태평양 BAE, KIM & LEE IP
Priority Data
10-2020-008441909.07.2020KR
10-2021-008912907.07.2021KR
Publication Language Korean (ko)
Filing Language Korean (KO)
Designated States
Title
(EN) NONAQUEOUS ELECTROLYTE FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY COMPRISING SAME
(FR) ÉLECTROLYTE NON AQUEUX POUR BATTERIE SECONDAIRE AU LITHIUM ET BATTERIE SECONDAIRE AU LITHIUM LE COMPRENANT
(KO) 리튬 이차전지용 비수전해액 및 이를 포함하는 리튬 이차전지
Abstract
(EN) The present invention relates to a nonaqueous electrolyte for a lithium secondary battery, and to a lithium secondary battery comprising same. More specifically, the present invention relates to a nonaqueous electrolyte for a lithium secondary battery, and to a lithium secondary battery comprising same, the nonaqueous electrolyte comprising: a lithium salt; an organic solvent including a carbonate compound and a propionate compound; a first additive including a compound represented by a specific formula; and a second additive including 1,3,6-hexanetricarbonitrile, wherein the first additive and the second additive are included in a weight ratio of 1:1.1 to 1:5.5.
(FR) La présente invention se rapporte à un électrolyte non aqueux pour une batterie secondaire au lithium et à une batterie secondaire au lithium le comprenant. Plus spécifiquement, la présente invention concerne un électrolyte non aqueux pour une batterie secondaire au lithium, et une batterie secondaire au lithium le comprenant, l'électrolyte non aqueux comprenant : un sel de lithium ; un solvant organique comprenant un composé carbonate et un composé propionate ; un premier additif comprenant un composé représenté par une formule spécifique ; et un second additif comprenant du 1,3,6-hexanetricarbonitrile, le premier additif et le second additif étant inclus dans un rapport pondéral de 1 : 1,1 à 1 : 5,5.
(KO) 본 발명은 리튬 이차전지용 비수전해액 및 이를 포함하는 리튬 이차전지에 관한 것으로, 구체적으로 리튬염, 카보네이트 화합물 및 프로피오네이트 화합물을 포함하는 유기용매, 특정 화학식으로 표시되는 화합물을 포함하는 제1 첨가제, 및 1,3,6-헥산트리카보니트릴을 포함하는 제2 첨가제를 포함하고, 상기 제1 첨가제 및 제2 첨가제는 1:1.1 내지 1:5.5의 중량비로 포함되는 리튬 이차전지용 비수전해액과 이를 포함하는 리튬 이차전지에 관한 것이다.
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