Title:
ALL-SOLID-STATE SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/190517
Kind Code:
A1
Abstract:
Provided is an all-solid-state secondary battery in which a reaction between an electrode body and moisture is effectively suppressed and which has high reliability and low cost. This all-solid-state secondary battery comprises an outer cladding body 10, and an electrode body 20 sealed in the outer cladding body 10. The electrode body 20 is obtained by laminating one or a plurality of laminates, each of which has a positive-electrode layer 21, a negative-electrode layer 22, and a solid electrolyte layer 23 disposed between the positive-electrode layer 21 and the negative-electrode layer 22. The side surface of the electrode body 20 is coated with an insulation coating film 50. The insulation coating film 50 has a water vapor permeability of 0.1 g/m2·day or lower. Additionally, the side surface of the electrode body 20 is formed as a single surface. This makes it possible to more reliably bond the insulation coating film 50 to the side surface of the electrode body 20 and to effectively suppress a reaction between the electrode body 10 and moisture.
Inventors:
KATAYAMA HIDEAKI (JP)
YAMAGUCHI KOJI (JP)
YAMAGUCHI KOJI (JP)
Application Number:
PCT/JP2023/012523
Publication Date:
October 05, 2023
Filing Date:
March 28, 2023
Export Citation:
Assignee:
MAXELL LTD (JP)
International Classes:
H01M10/0585; H01M10/0562; H01M10/0565; H01M50/102; H01M50/131; H01M50/141
Domestic Patent References:
| WO2014007215A1 | 2014-01-09 |
Foreign References:
| JP2020009596A | 2020-01-16 | |||
| JP2020061359A | 2020-04-16 |
Attorney, Agent or Firm:
UEBA, Hidetoshi et al. (JP)
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