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Title:
SOLID ELECTROLYTE COMPOSITION, SOLID ELECTROLYTE, LITHIUM ION SECONDARY BATTERY, AND METHOD FOR PRODUCING LITHIUM ION SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2011/099497
Kind Code:
A1
Abstract:
Provided are a solid electrolyte composition and a solid electrolyte which exert excellent lithium ion conductivity and strength at low temperatures. Also provided are a lithium ion secondary battery and a method for producing a lithium ion battery in which the charging/discharging performance and the strength of the solid electrolyte layer are improved at low temperatures. The matrix of a solid electrolyte has a nanostructure in which a nonreactive polyalkylene glycol is held onto a co-crosslinked product in which a highly branched polymer and a crosslinkable ethylene oxide multicomponent copolymer are chemically crosslinked. A lithium salt is dissolved in the matrix. A negative electrode active material layer is formed by dispersing a negative electrode active material and a conductive assistant in a lithium ion conductive solid electrolyte. A positive electrode active material layer is formed by dispersing a positive electrode active material and a conductive assistant in a lithium ion conductive solid electrolyte.

Inventors:
ITOH Takahito (MIE UNIVERSITY 1577, Kurimamachiya-cho, Tsu-sh, Mie 07, 〒5148507, JP)
伊藤 敬人 (〒07 三重県津市栗真町屋町1577 国立大学法人三重大学大学院工学研究科内 Mie, 〒5148507, JP)
UNO Takahiro (MIE UNIVERSITY 1577, Kurimamachiya-cho, Tsu-sh, Mie 07, 〒5148507, JP)
宇野 貴浩 (〒07 三重県津市栗真町屋町1577 国立大学法人三重大学大学院工学研究科内 Mie, 〒5148507, JP)
TAKEDA Yasuo (MIE UNIVERSITY 1577, Kurimamachiya-cho, Tsu-sh, Mie 07, 〒5148507, JP)
武田 保雄 (〒07 三重県津市栗真町屋町1577 国立大学法人三重大学大学院工学研究科内 Mie, 〒5148507, JP)
IMANISHI Nobuyuki (MIE UNIVERSITY 1577, Kurimamachiya-cho, Tsu-sh, Mie 07, 〒5148507, JP)
今西 誠之 (〒07 三重県津市栗真町屋町1577 国立大学法人三重大学大学院工学研究科内 Mie, 〒5148507, JP)
Application Number:
JP2011/052694
Publication Date:
August 18, 2011
Filing Date:
February 09, 2011
Export Citation:
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Assignee:
MIE UNIVERSITY (1577, Kurimamachiya-cho Tsu-sh, Mie 07, 〒5148507, JP)
国立大学法人三重大学 (〒07 三重県津市栗真町屋町1577 Mie, 〒5148507, JP)
ITOH Takahito (MIE UNIVERSITY 1577, Kurimamachiya-cho, Tsu-sh, Mie 07, 〒5148507, JP)
伊藤 敬人 (〒07 三重県津市栗真町屋町1577 国立大学法人三重大学大学院工学研究科内 Mie, 〒5148507, JP)
UNO Takahiro (MIE UNIVERSITY 1577, Kurimamachiya-cho, Tsu-sh, Mie 07, 〒5148507, JP)
宇野 貴浩 (〒07 三重県津市栗真町屋町1577 国立大学法人三重大学大学院工学研究科内 Mie, 〒5148507, JP)
TAKEDA Yasuo (MIE UNIVERSITY 1577, Kurimamachiya-cho, Tsu-sh, Mie 07, 〒5148507, JP)
武田 保雄 (〒07 三重県津市栗真町屋町1577 国立大学法人三重大学大学院工学研究科内 Mie, 〒5148507, JP)
IMANISHI Nobuyuki (MIE UNIVERSITY 1577, Kurimamachiya-cho, Tsu-sh, Mie 07, 〒5148507, JP)
International Classes:
H01M10/0565; C08F299/00; C08K3/10; C08L71/02; H01B1/06
Foreign References:
JP2003187637A2003-07-04
JP2005347048A2005-12-15
JP2004071405A2004-03-04
JP2008130529A2008-06-05
JP2006344504A2006-12-21
Attorney, Agent or Firm:
YOSHITAKE Hidetoshi et al. (10th floor, Sumitomo-seimei OBP Plaza Bldg. 4-70, Shiromi 1-chome, Chuo-ku, Osaka-sh, Osaka 01, 〒5400001, JP)
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Claims: