Title:
FULLY SOLID-STATE SECONDARY BATTERY AND METHOD OF MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2019/188487
Kind Code:
A1
Abstract:
Provided are a fully solid-state secondary battery and a method of manufacturing the same. The fully solid-state secondary battery comprises: a stack in which a positive electrode layer, a solid-state electrolyte layer, and a negative electrode layer are stacked in this order. Each of the layer has an area that satisfies [area of positive electrode layer] < [area of negative electrode layer] ≤ [area of solid-state electrolyte layer]; and, on one or both of a surface of the positive electrode layer on the opposite side to the side of the solid-state electrolyte layer and a surface of the negative electrode layer on the opposite side to the side of the solid-state electrolyte layer, a buffer layer that has an area greater than the area of the solid-state electrolyte layer and a Young's modulus smaller than that of any of the positive electrode layer, the solid-state electrolyte layer, and the negative electrode layer. The stack is in a state of being pressed via the buffer layer.
Inventors:
YAWATA TOSHIHIKO (JP)
MOCHIZUKI HIROAKI (JP)
OZAWA SHIN (JP)
MOCHIZUKI HIROAKI (JP)
OZAWA SHIN (JP)
Application Number:
PCT/JP2019/011142
Publication Date:
October 03, 2019
Filing Date:
March 18, 2019
Export Citation:
Assignee:
FUJIFILM CORP (JP)
International Classes:
H01M10/0585; C01B25/00; H01M4/62; H01M10/0562; H01M50/474
Foreign References:
| JP2014120372A | 2014-06-30 | |||
| JP2014120199A | 2014-06-30 | |||
| JP2014035888A | 2014-02-24 | |||
| US20170040644A1 | 2017-02-09 | |||
| JP2008103284A | 2008-05-01 | |||
| JP2018062756A | 2018-04-19 |
Other References:
T. OHTOMOA. HAYASHIM. TATSUMISAGOY. TSUCHIDAS. HAMGAK. KAWAMOTO, JOURNAL OF POWER SOURCES, vol. 233, 2013, pages 231 - 235
A. HAYASHIS. HAMAH. MORIMOTOM. TATSUMISAGOT. MINAMI, CHEM. LETT., 2001, pages 872,873
See also references of EP 3780239A4
A. HAYASHIS. HAMAH. MORIMOTOM. TATSUMISAGOT. MINAMI, CHEM. LETT., 2001, pages 872,873
See also references of EP 3780239A4
Attorney, Agent or Firm:
IIDA & PARTNERS et al. (JP)
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