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Title:
NONAQUEOUS SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2010102986
Kind Code:
A
Abstract:

To provide a high power nonaqueous secondary battery excellent in long-term reliability.

The nonaqueous secondary battery includes a positive electrode, a negative electrode, a separator, and a nonaqueous electrolyte. Either of the positive electrode and the negative electrode is an electrode that has an electrode mixture layer, at least containing a lithium-titanium composite oxide and a binder, at least on one surface of a current collector. The lithium-titanium composite oxide has a specific surface area of 5 m2/g. The nonaqueous secondary battery contains at least one selected from the group consisting of polyimide, polyamideimide, and polyamide as the binder. Each amount of the polyimide, polyamideimide, and polyamide in the electrode mixture layer is 1-10 pts.mass based on 100 pts.mass of the lithium-titanium composite oxide.


Inventors:
EDAMOTO TOSHIYUKI
ENDO NOBUMASA
Application Number:
JP2008000274160
Publication Date:
May 06, 2010
Filing Date:
October 24, 2008
Export Citation:
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Assignee:
HITACHI MAXELL
International Classes:
H01M4/131; H01M4/485; H01M4/62
Domestic Patent References:
JP2002270175A2002-09-20
JP2008016446A2008-01-24
Attorney, Agent or Firm:
Miwa Tetsuo
Miwa Hideki