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Title:
NONAQUEOUS SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2013109929
Kind Code:
A
Abstract:

To provide a nonaqueous secondary battery in which a resistance increase ratio (%) after charge/discharge cycles can be reduced.

In a nonaqueous secondary battery 100A, a ratio A/B between a value A and a value B satisfies a relationship of 0.78≤(A/B)≤1.22,the value A being obtained by dividing a DBP oil absorption amount of a positive electrode active material particle 610A by a porosity of a positive electrode active material layer 223A and a thickness (La1+La2) of the positive electrode active material layer 223A, and the value B being obtained by dividing an oil absorption amount of linseed oil of a negative electrode active material particle 710A by a porosity of a negative electrode active material layer 243A and a thickness (Lb1+Lb2) of the negative electrode active material layer 243A.


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Inventors:
TAKAHATA KOJI
OKADA YUKIHIRO
Application Number:
JP2011253210A
Publication Date:
June 06, 2013
Filing Date:
November 18, 2011
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M10/052; H01M2/26; H01M4/13; H01M4/36; H01M10/0566; H01M10/0587
Domestic Patent References:
JP2003272609A2003-09-26
JP2005285606A2005-10-13
JP2008204886A2008-09-04
JP2009245955A2009-10-22
JP2009212021A2009-09-17
JPH11214040A1999-08-06
JPH07282818A1995-10-27
JP2003272609A2003-09-26
JP2005285606A2005-10-13
JP2008204886A2008-09-04
Attorney, Agent or Firm:
Makoto Abe
Michiko Oi
Hiroaki Yamane



 
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