Nonaqueous electrolyte rechargeable battery - TOYOTA JIDOSHA KABUSHIKI KAISHA

Title:

Nonaqueous electrolyte rechargeable battery

Document Type and Number:

Japanese Patent JP5963010

Kind Code:

B2

Abstract:

Provided is a nonaqueous electrolyte secondary battery that allows a current cutoff mechanism to operate appropriately while maintaining high battery performance. The nonaqueous electrolyte secondary battery according to the present invention includes: a battery assembly provided with a positive electrode having a positive electrode active material layer retained on a positive electrode current collector, a negative electrode and a separator; a battery case housing the electrode assembly together with a nonaqueous electrolyte; and a current cutoff mechanism. The positive electrode active material layer includes a positive electrode active material and a conductive material. A compound containing a saturated cyclic hydrocarbon group is retained in at least a portion of the conductive material. The content of the compound containing a saturated cyclic hydrocarbon group is 0.5% by mass or more based on a value of 100% by mass for the total solid content of the positive electrode active material layer.

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Inventors:

Hideyo Ebisaki
Masaru Ishii
Hiroshi Hamaguchi
Toru Nakai

Application Number:

JP2014001961A

Publication Date:

August 03, 2016

Filing Date:

January 08, 2014

Export Citation:

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