ADDITIVE FOR ELECTROLYTE NONAQUEOUS ELECTROLYTE FOR LITHIUM SECONDARY BATTERY COMPRISING THE SAME AND LITHIUM SECONDARY BATTERY

The present invention relates to an electrolyte additive for a lithium secondary battery, an electrolyte including the additive, and a lithium secondary battery including the electrolyte, wherein the additive includes diphosphonic acid borate or diphosphonic acid phosphorate. The electrolyte additiv...

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Bibliographic Details
Main Authors CHOI HAN YOUNG, LEE, JUNG GYU, CHO, SANG HO, JO CHANG HO, KANG JUN
Format Patent
LanguageEnglish
Korean
Published 15.03.2021
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:The present invention relates to an electrolyte additive for a lithium secondary battery, an electrolyte including the additive, and a lithium secondary battery including the electrolyte, wherein the additive includes diphosphonic acid borate or diphosphonic acid phosphorate. The electrolyte additive of the present invention has an effect of sufficiently improving the capacity retention rate and life retention rate of the secondary battery. 본 발명은 리튬 이차전지용 전해액 첨가제, 상기 첨가제를 포함하는 전해액 및 상기 전해액을 포함하는 리튬 이차전지에 관한 것으로 상기 첨가제는 디포스폰산 보레이트 또는 디포스폰산 포스포레이트를 포함하는 것이다.
Bibliography:Application Number: KR20200015147