Title:
SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2018/163293
Kind Code:
A1
Abstract:
[Problem] To provide a secondary battery capable of preventing a negative electrode current collector from being torn due to the expansion and contraction of a silicon-containing negative electrode active material layer. [Solution] This secondary battery has: a battery body part 20 having a plurality of stacked power generation elements; and a constraining part 80 for constraining the battery body part 20, wherein a first contact part 80, which exerts a constraining force to the surface of the outermost layer (a negative electrode-current collector 32) of the battery body part 20, is configured such that the stress generated in a boundary between a contact region and a non-contact region of the first contact part 81 is smaller than the rupture strength of the negative electrode current collector 32, the stress being based on the constraining force and the expansion and contraction of a negative electrode caused by a volume change in the negative electrode active material due to charging and discharging.
Inventors:
KAMIYA SACHIKO (JP)
NARUOKA YOSHINORI (JP)
OGIHARA WATARU (JP)
NARUOKA YOSHINORI (JP)
OGIHARA WATARU (JP)
Application Number:
PCT/JP2017/009062
Publication Date:
September 13, 2018
Filing Date:
March 07, 2017
Export Citation:
Assignee:
NISSAN MOTOR (JP)
RENAULT SAS (FR)
RENAULT SAS (FR)
International Classes:
H01M10/0585; H01M10/04
Domestic Patent References:
| WO2015156344A1 | 2015-10-15 | |||
| WO2017033420A1 | 2017-03-02 | |||
| WO2014188607A1 | 2014-11-27 |
Foreign References:
| JP2013051130A | 2013-03-14 | |||
| JP2016122533A | 2016-07-07 | |||
| JP2008091099A | 2008-04-17 |
Other References:
See also references of EP 3595074A4
Attorney, Agent or Firm:
HATTA & ASSOCIATES (JP)
Download PDF:
Previous Patent: SUPERCONDUCTIVE WIRE MATERIAL, SUPERCONDUCTIVE COIL, AND SUPERCONDUCTIVE CABLE CONDUCTOR
Next Patent: SECONDARY BATTERY
Next Patent: SECONDARY BATTERY