Title:
A nonaqueous electrolyte secondary battery and a battery system
Document Type and Number:
Japanese Patent JP6011233
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide: a nonaqueous electrolytic secondary battery superior in safety when being normally charged and discharged, when being stored at a high temperature, and when being overcharged; and a battery system thereof.SOLUTION: A nonaqueous electrolytic secondary battery 1 according to the present invention comprises: an outer sheath 10; a power-generation element 3 and a nonaqueous electrolyte 5 which are placed in the outer sheath 10; a current cutoff mechanism 7 for cutting off current in response to the rise in a pressure inside the outer sheath 10; and a gas-generating additive agent which is added to the nonaqueous electrolyte 5, and generates gas as a result of a decomposition reaction when being put in an overcharged condition, provided that at least a primary component of the gas is not carbon dioxide. Part of the outer sheath 10 is formed by a CO-selecting permeable film 13 allowing carbon dioxide to pass therethrough selectively.
Inventors:
Yu Takagi
Application Number:
JP2012229087A
Publication Date:
October 19, 2016
Filing Date:
October 16, 2012
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
H01M10/052; H01M2/02; H01M2/12; H01M2/34; H01M10/0567
Domestic Patent References:
| JP2001015155A | ||||
| JP2012190639A | ||||
| JP2011104579A | ||||
| JP9171840A | ||||
| JP2006302809A | ||||
| JP2006073308A |
Foreign References:
| US6632572 | ||||
| US6033797 |
Attorney, Agent or Firm:
Ken Ieiri
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