Title:
ALL-SOLID BATTERY
Document Type and Number:
Japanese Patent JP2018195528
Kind Code:
A
Abstract:
To make it possible to suppress the short circuit through a nail by adequately covering the surface of the nail with an insulating film at nail pricking in an all-solid battery having a sulfide solid electrolyte, and to prevent the degradation of a sulfide solid electrolyte.SOLUTION: An all-solid battery comprises a laminate in which a plurality of electrode bodies are laminated. In the electrode body, a positive electrode current collector layer and a positive electrode material layer, a sulfide solid electrolyte layer, a negative electrode material layer and a negative electrode current collector layer are laminated. A lamination direction of the plurality of electrode bodies in the laminate coincides with a lamination direction of the respective layers in the electrode body. In the all-solid battery, an insulating film is disposed on at least each end face of the laminate in the lamination direction. The insulating film includes an urethane-based material. In a nail pricking test using the film alone, the insulating film is 17 mm or more in elongation and 13 N or more in breaking strength.SELECTED DRAWING: Figure 1
Inventors:
TATEISHI MITSURU
HASEGAWA HAJIME
KAWAOKA HIROKAZU
HASEGAWA HAJIME
KAWAOKA HIROKAZU
Application Number:
JP2017100716A
Publication Date:
December 06, 2018
Filing Date:
May 22, 2017
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
H01M10/0585; H01M2/34; H01M10/0562
Domestic Patent References:
| JP2016110756A | 2016-06-20 | |||
| JP2016207614A | 2016-12-08 | |||
| JP2002151159A | 2002-05-24 | |||
| JP2014060012A | 2014-04-03 | |||
| JP2015156323A | 2015-08-27 |
Attorney, Agent or Firm:
Noriyuki Yamamoto
Akihiko Yamashita
Kishimoto Tatsuto
Akihiko Yamashita
Kishimoto Tatsuto