Title:
NONAQUEOUS ELECTROLYTE SOLUTION FOR LITHIUM SECONDARY BATTERY, AND LITHIUM SECONDARY BATTERY CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2012/015241
Kind Code:
A2
Abstract:
The present invention relates to a nonaqueous electrolyte solution for a lithium secondary battery, and a lithium secondary battery containing the same. According to the present invention, the nonaqueous electrolyte solution for a lithium secondary battery, comprising a lithium salt and an organic solvent, further comprises: (a) a halogenated alkylsilane; and (b) (b-1) succinic anhydride, (b-2) pentaerythritol or dipentaerythritol (meth)acrylate, or (b-3) a mixture thereof, as additives. The nonaqueous electrolyte solution for a lithium secondary battery of the present invention can improve high temperature storage performance and cycle performance.
Inventors:
AN, Yu-Ha (2-402, LG Employee Apt.,Doryong-dong, Yuseong-gu, Daejeon 305-340, 305-340, KR)
안유하 (대전 유성규 도룡동 LG사원아파트 2동 402호, 305-340 Daejeon, 305-340, KR)
YU, Sung-Hoon (102-302, Hyundai Apt.,Doryong-dong, Yuseong-gu, Daejeon 305-340, 305-340, KR)
안유하 (대전 유성규 도룡동 LG사원아파트 2동 402호, 305-340 Daejeon, 305-340, KR)
YU, Sung-Hoon (102-302, Hyundai Apt.,Doryong-dong, Yuseong-gu, Daejeon 305-340, 305-340, KR)
Application Number:
KR2011/005539
Publication Date:
February 02, 2012
Filing Date:
July 27, 2011
Export Citation:
Assignee:
LG CHEM, LTD. (20 Yoido-dong, Youngdungpo-gu, Seoul 150-721, 150-721, KR)
주식회사 엘지화학 (서울 영등포구 여의도동 20, 150-721 Seoul, 150-721, KR)
AN, Yu-Ha (2-402, LG Employee Apt.,Doryong-dong, Yuseong-gu, Daejeon 305-340, 305-340, KR)
안유하 (대전 유성규 도룡동 LG사원아파트 2동 402호, 305-340 Daejeon, 305-340, KR)
주식회사 엘지화학 (서울 영등포구 여의도동 20, 150-721 Seoul, 150-721, KR)
AN, Yu-Ha (2-402, LG Employee Apt.,Doryong-dong, Yuseong-gu, Daejeon 305-340, 305-340, KR)
안유하 (대전 유성규 도룡동 LG사원아파트 2동 402호, 305-340 Daejeon, 305-340, KR)
International Classes:
H01M10/0567; H01M10/052; H01M10/0569
Attorney, Agent or Firm:
PHIL & ONZI INT'L PATENT & LAW FIRM (Jinsuk B/D, 8F. 1536-7,Seocho-dong, Seocho-gu, Seoul 137-872, 137-872, KR)
Claims: