ELECTROLYTE COMPOSITION AND SECONDARY BATTERY USING SAME

• Main Authors: JEONG, Seong Wook, KUM, Joonghan, BAEK, Sungho, CHOI, Han Young
• Format: Patent
• Language: English; French; Korean
• Published: 15.08.2019
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

The present invention provides: an electrolyte composition comprising a propane sultone compound, in which a carbon atom at a specific position is substituted with a specific substituent, and a non-aqueous solvent; and a secondary battery comprising the electrolyte composition. The electrolyte composition according to the present invention can significantly increase the lifespan characteristics of the secondary battery by forming a stable negative electrode coating containing the propane sultone compound, in which a carbon atom at a specific position is substituted with a specific substituent. La présente invention concerne une composition d'électrolyte comprenant un composé de propane sultone, dans lequel un atome de carbone à une position spécifique est substitué par un substituant spécifique, et un solvant non aqueux. L'invention concerne également une batterie secondaire comprenant la composition d'électrolyte. La composition d'électrolyte selon la présente invention permet d'augmenter considérablement les caractéristiques de durée de vie de la batterie secondaire par formation d'un revêtement d'électrode négative stable contenant le composé de sultone de propane, dans lequel un atome de carbone à une position spécifique est substitué par un substituant spécifique. 본 발명은 특정 위치의 탄소가 특정 치환기로 치환된 프로판 설톤 화합물 및 비수용매를 포함하는 전해액 조성물 및 상기 전해액 조성물을 포함하는 이차전지를 제공한다. 본 발명에 따른 전해액 조성물은 특정 위치의 탄소가 특정 치환기로 치환된 프로판 설톤 화합물을 포함하여 안정한 음극피막을 형성함으로써 이차전지의 수명특성을 현저히 증가시킬 수 있다.