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Title:
二次電池用非水系電解液及び非水系電解液二次電池
Document Type and Number:
Japanese Patent JP4288976
Kind Code:
B2
Abstract:

To provide a nonaqueous electrolytic solution secondary battery with a high energy density, having a high charging/discharging efficiency and showing a superior charging/discharging cycle, by suppressing decomposition of the electrolytic solution.

This battery comprises a negative electrode having a current collector and a coating film of an active material containing a noncarbon material capable of storing and releasing lithium formed on the current collector; a positive electrode capable of storing and releasing lithium; and an electrolytic solution in which a lithium salt is dissolved in a nonaqueous solvent. The electrolytic solution contains a chemical compound expressed in a general formula (I). In the formula (I), R1, R2and R3are hydrogen or optionally substituted alkyl groups, respectively, they are optionally identical or different one another, optionally independent substituents, respectively, and optionally wound in a ring by combining one another.

COPYRIGHT: (C)2005,JPO&NCIPI


Inventors:
Masahiro Takehara
Kamo Takuko
Application Number:
JP2003083187A
Publication Date:
July 01, 2009
Filing Date:
March 25, 2003
Export Citation:
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Assignee:
Mitsubishi Chemical Corporation
International Classes:
H01M10/05; H01M4/02; H01M4/36; H01M4/38; H01M10/052; H01M10/0567; H01M10/0568; H01M10/0569
Domestic Patent References:
JP2003031260A
JP11067265A
JP10064584A
JP2260368A
JP8321312A
JP10189008A
JP2002367602A
Attorney, Agent or Firm:
Tsuyoshi Shigeno