Samsung Sdi Co., Inc.

Industry-University Cooperation Foundation Hanyang University

Si Young Cha

Woo Cheol Shin

Dong Won Kim

Soo Jin Kim

Min Ju Lee

Duck Hyun Kim

Yun Chae Jung

Myung Heui Woo

Ha Rim Lee

Hee Eun Yoo

Tae Ri Kwon

Tae Hyun Bae

Il Kyoung Kwon

Provided are an organic electrolytic solution and a lithium battery including the organic electrolytic solution, wherein the organic electrolytic solution includes an organic solvent, a lithium salt, a borate compound represented by Formula 1 below, and an ionic metal complex represented by Formula 2 below: wherein R, R, and Rare each independently a hydrogen; a C-Calkyl group substituted or unsubstituted with a halogen; or a C-Ccyanoalkyl group substituted or unsubstituted with a halogen, at least one of the R, R, and Rincludes a cyanoalkyl group, Me is an element selected from the group consisting of transition metals and Groups 13 to 15 elements of the periodic table, M is a metal ion, a is an integer from 1 to 3, b is an integer from 1 to 3, s=b/a, p is an integer from 0 to 8, q is 0 or 1, r is an integer from 1 to 4, Xand Xare each independently O, S, or NR, Rand Rare each independently a halogen, a C-Calkyl group substituted or unsubstituted with a halogen, or a C-Caryl group substituted or unsubstituted with a halogen, and Ris a C-Calkylene group substituted or unsubstituted with a halogen or a C-Carylene group substituted or unsubstituted with a halogen.

Organic electrolyte and lithium battery employing said electrolyte

A polymer electrolyte for a lithium secondary battery includes a polymer represented by Formula 1 below, wherein a and b are each independently an integer from 1 to 5, and n is an integer from 1 to 1,000. A lithium secondary battery includes the polymer electrolyte.

Polymer electrolyte for lithium secondary battery and lithium secondary battery including the same

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Yongin-si, South Korea

Si Young Cha