US 2023/0402650 A1 · ELECTROLYTE SOLUTION FOR A LITHIUM SECONDARY BATTERY AND A LITHIUM SECONDARY BATTERY INCLUDING SAME

Electrolyte solution for a lithium secondary battery and a lithium secondary battery including same

AssigneesHyundai Motor Company, Kia Corporation, Unist (Ulsan National Institute of Science and Technology)

InventorsYoon Sung Lee, Jun Ki Rhee, Hui Beom Nam, Ko Eun Kim, Sung Ho Ban, Seung Min Oh, Sang Kyu Kwak, Nam Soon Choi, Sung You Hong, Hyeong Jun Kim, Seo Young Jeong, Hyeon Gyu Moon, Min Pyeong Kim

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Abstract

An electrolyte for a lithium secondary battery can enhance lifetime and output characteristics in a high-capacity lithium secondary battery. The electrolyte for a lithium secondary battery includes a lithium salt, a solvent, and a functional additive. The functional additive includes 1-(3-((tert-butyldimethylsilyl)oxy)propyl)-5-(4-fluorophenyl)-1H-1,2,3-triazole-4-carbonitrile as a positive electrode film additive.

Claims10

Dependent claims

An electrolyte for a lithium secondary battery, the electrolyte comprising:

a lithium salt;
a solvent;
and
a functional additive including 1-(3-((tert-butyldimethylsilyl)oxy)propyl)-5-(4-fluorophenyl)-1H-1,2,3-triazole-4-carbonitrile represented by the following formula as a positive electrode film additive:

1 more element

Dependencies are inferred from the claim text.

Facts

Application

17/990,435Filed 18 Nov 2022

Priority

KR 10-2022-007086910 Jun 2022

Published

14 Dec 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

H01M 10/0567
Liquid materials: characterised by the additives
H01M 4/525
Of nickel, cobalt or iron: of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g.…
H01M 4/587
Carbonaceous material, e.g. graphite-intercalation compounds or CFx: for inserting or intercalating light metals
H01M 10/0525
Li-accumulators: rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries