Title:
NONAQUEOUS SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2015/045386
Kind Code:
A1
Abstract:
The positive electrode of this nonaqueous secondary battery comprises a positive electrode active material that contains at least one material selected from among lithium metal composite oxides having a layered rock salt structure, lithium metal composite oxides having a spinel structure and polyanion-based materials. The electrolyte solution of this nonaqueous secondary battery contains a metal salt, wherein an alkali metal, an alkaline earth metal or aluminum serves as cations, and an organic solvent having a hetero element. With respect to the peak intensity ascribed to the organic solvent in a vibrational spectrum of the electrolyte solution, if Io is the original peak intensity of the organic solvent and Is is the intensity of a shifted peak of the organic solvent, Io and Is satisfy Is > Io. The highest working potential of the positive electrode of this nonaqueous secondary battery may be 4.5 V or more relative to Li/Li+.
Inventors:
YAMADA ATSUO (JP)
YAMADA YUKI (JP)
KAWAI TOMOYUKI (JP)
NAKAGAKI YOSHIHIRO (JP)
MASE KOHEI (JP)
HASEGAWA YUKI (JP)
GODA NOBUHIRO (JP)
YAMADA YUKI (JP)
KAWAI TOMOYUKI (JP)
NAKAGAKI YOSHIHIRO (JP)
MASE KOHEI (JP)
HASEGAWA YUKI (JP)
GODA NOBUHIRO (JP)
Application Number:
PCT/JP2014/004910
Publication Date:
April 02, 2015
Filing Date:
September 25, 2014
Export Citation:
Assignee:
UNIV TOKYO (JP)
International Classes:
H01M10/0566; H01M4/505; H01M10/052; H01M10/0568; H01M10/0569
Foreign References:
| JP2007091573A | 2007-04-12 | |||
| JP2006073434A | 2006-03-16 | |||
| JP2013178885A | 2013-09-09 | |||
| JP2001507043A | 2001-05-29 | |||
| JP2002523879A | 2002-07-30 |
Other References:
MAKOTO YAEGASHI: "Yobai Bunshi no Haii Jotai Seigyo ni yoru Yuki Yoeki no Shin Kino Hatsugen", DAI 53 KAI ABSTRACTS, BATTERY SYMPOSIUM IN JAPAN, 13 November 2012 (2012-11-13), pages 507
Attorney, Agent or Firm:
KYORITSU INTERNATIONAL (JP)
Patent business corporation Joint establishment (JP)
Patent business corporation Joint establishment (JP)
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