Title:
A nonaqueous electrolyte secondary battery and a manufacturing method for the same
Document Type and Number:
Japanese Patent JP5939438
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing a nonaqueous electrolyte secondary battery, by which the viscosity of a negative electrode paste can be easily adjusted even when CMC having a large molecular weight is used in order to reduce the value of resistance of a battery, and thereby capable of providing a nonaqueous electrolyte secondary battery having the value of resistance lower than that of conventional one.SOLUTION: In a lithium ion secondary battery 1 containing CMC 3 in the mixture layer of a negative electrode 9, the concentration of Fe contained in a graphite 2 that is a raw material active material constituting the negative electrode 9 is 32 ppm or more and 82 ppm or less, and the oil absorption volume of linseed oil in 70% torque of the graphite 2 is 50 ml/100 g or more and 62 ml/100 g or less.
Inventors:
Koji Takahata
Application Number:
JP2012171377A
Publication Date:
June 22, 2016
Filing Date:
August 01, 2012
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M4/587; H01M4/133; H01M4/1393; H01M4/62
Domestic Patent References:
| JP2010092649A | ||||
| JP2006107896A | ||||
| JP10302774A | ||||
| JP2006092760A | ||||
| JP2002164051A |
Foreign References:
| US5972537 |
Attorney, Agent or Firm:
Makoto Abe
Michiko Oi
Hiroaki Yamane
Juichiro Yano
Hideaki Masatsu
Michiko Oi
Hiroaki Yamane
Juichiro Yano
Hideaki Masatsu
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