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Title:
LITHIUM ION SECONDARY BATTERY
Document Type and Number:
Japanese Patent JP2013012394
Kind Code:
A
Abstract:

To provide a lithium ion secondary battery with the initial output and high-temperature high-rate durability concurrently satisfying at least a fixed level.

The lithium ion secondary battery includes a negative electrode active material layer containing styrene-butadiene rubber, carboxymethyl cellulose and negative electrode active material. The negative electrode active material has a styrene-butadiene rubber coverage factor of not less than 0.3% but not more than 50% on particle surface.


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Inventors:
NOMURA KUMIKO
SOEJIMA TAKAYUKI
ISHIDA TOMOHIKO
SUMI TOMOHIDE
KANEDA AKIRA
MIO TAKUMI
Application Number:
JP2011144332A
Publication Date:
January 17, 2013
Filing Date:
June 29, 2011
Export Citation:
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Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M4/133; H01M4/36; H01M4/587; H01M4/62
Domestic Patent References:
JP2009252398A2009-10-29
Attorney, Agent or Firm:
Makoto Abe
Michiko Oi
Hiroaki Yamane



 
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