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Patent Searching and Data


Title:
リチウムイオン二次電池
Document Type and Number:
Japanese Patent JP4775346
Kind Code:
B2
Abstract:
A battery capable of improving battery characteristics is provided. The battery includes a cathode, an anode and an electrolytic solution, and a separator arranged between the cathode and the anode is impregnated with the electrolytic solution. The solvent of the electrolytic solution includes a sulfone compound having a sulfonyl fluoride type structure in which a sulfonyl group and a fluorine group are bonded together, and at least one kind selected from the group consisting of a chain carbonate which includes a halogen and a cyclic carbonate which includes a halogen.

Inventors:
Masayuki Ihara
Hiroyuki Yamaguchi
Tadahiko Kubota
Application Number:
JP2007219914A
Publication Date:
September 21, 2011
Filing Date:
August 27, 2007
Export Citation:
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Assignee:
ソニー株式会社
International Classes:
H01M10/0569; H01M4/139; H01M10/052; H01M10/0525; H01M10/0567; H01M10/0568
Domestic Patent References:
JP2006049112A
JP2007172990A
JP2004014134A
JP2006331866A
JP2006190635A
JP2006339010A
JP2007157536A
JP2006244776A
JP2007179883A
JP2002359001A
JP2006294519A
JP2006261092A
Attorney, Agent or Firm:
Yoichiro Fujishima