Title:
リチウム二次電池用非水電解質及びそれを含むリチウム二次電池
Document Type and Number:
Japanese Patent JP5827122
Kind Code:
B2
Abstract:
A non-aqueous electrolyte solution for a lithium secondary battery includes a lithium salt and an organic solvent. Based on 100 parts by weight of the non-aqueous electrolyte solution, the non-aqueous electrolyte solution includes 1 to 5 parts by weight of sultone compound having a carbon-carbon unsaturated bond in a cyclic structure; 1 to 5 parts by weight of cyclic carbonate compound with a vinyl group; 5 to 10 parts by weight of cyclic carbonate compound that is substituted with halogen; and 1 to 5 parts by weight of dinitrile compound. This non-aqueous electrolyte solution improves stability of a SEI film formed on a surface of an anode of a lithium secondary battery and thus improves normal temperature cycle performance and high temperature cycle performance.
Inventors:
Park, Seo Yang
Kang, Hee-Gyan
Bae, John-Sun
Kang, Hee-Gyan
Bae, John-Sun
Application Number:
JP2011506207A
Publication Date:
December 02, 2015
Filing Date:
April 24, 2009
Export Citation:
Assignee:
LG HAUSYS,LTD.
International Classes:
H01M10/0525; H01M10/0567; H01M10/36
Domestic Patent References:
| JP2003151623A |
Foreign References:
| WO2007043624A1 | ||||
| WO2007094625A1 |
Attorney, Agent or Firm:
Seiji Ohno
Takeshi Katata
Matsuno Chihiro
Hiroshi Morita
Takeshi Katata
Matsuno Chihiro
Hiroshi Morita