Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Takahisa Ohsaki0
Hiroyuki Hasebe0
Motoya Kanda0
Norio Takami0
Date of Patent
June 1, 2010
0Patent Application Number
114549250
Date Filed
June 19, 2006
0Patent Primary Examiner
Patent abstract
The present invention provides a nonaqueous electrolyte secondary battery, comprising an electrode group including a positive electrode, a negative electrode including a material for absorbing-desorbing lithium ions, and a separator arranged between the positive electrode and the negative electrode, a nonaqueous electrolyte impregnated in the electrode group and including a nonaqueous solvent and a lithium salt dissolved in the nonaqueous solvent, and a jacket for housing the electrode group and having a thickness of 0.3 mm or less, wherein the nonaqueous solvent γ-butyrolactone in an amount larger than 50% by volume and not larger than 95% by volume based on the total amount of the nonaqueous solvent.
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