Title:
ELECTRICITY STORAGE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/172119
Kind Code:
A1
Abstract:
The present disclosure provides an electricity storage device (1) which has high flame retardancy. This electricity storage device (1) comprises: a positive electrode (10) that is provided with a positive electrode active material; a negative electrode (20) that is provided with a negative electrode active material; an electrolyte solution (40) that contains alkali metal ions; and a hermetic sealing body (50) which is internally in contact with the electrolyte solution, and in which the electrolyte solution (40) is hermetically sealed. At least one of the positive electrode active material and the negative electrode active material is capable of absorbing and desorbing the alkali metal ions. This electricity storage device (1) is additionally provided with an extinguishing agent in the internal space of the hermetic sealing body (50), said extinguishing agent exhibiting a flameproofing function. The extinguishing agent has an RED value of more than 1 on the basis of the Hansen solubility parameter with respect to the electrolyte solution (40).
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Inventors:
MIO TAKUMI (JP)
OHMI NAOKI (JP)
KIMOTO YUSUKE (JP)
KOMATSUBARA YUKIHIRO (JP)
IIZUKA KENTARO (JP)
NISHI KOJI (JP)
OHMI NAOKI (JP)
KIMOTO YUSUKE (JP)
KOMATSUBARA YUKIHIRO (JP)
IIZUKA KENTARO (JP)
NISHI KOJI (JP)
Application Number:
PCT/JP2019/008091
Publication Date:
September 12, 2019
Filing Date:
March 01, 2019
Export Citation:
Assignee:
JTEKT CORP (JP)
International Classes:
H01G11/18; H01G2/10; H01G2/14; H01G11/06; H01G11/52; H01G11/82; H01M10/052; H01M10/054; H01M10/0566; H01M50/409; H01M50/443
Foreign References:
| JP2015181093A | 2015-10-15 | |||
| JP2007317481A | 2007-12-06 | |||
| JP2017017299A | 2017-01-19 | |||
| JP2014235863A | 2014-12-15 | |||
| JP2014007089A | 2014-01-16 | |||
| JP2016164868A | 2016-09-08 | |||
| JP6431147B1 | 2018-11-28 |
Attorney, Agent or Firm:
OKADA PATENT & TRADEMARK OFFICE, P. C. (JP)
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