Title:
LDH SEPARATOR, MANUFACTURING METHOD THEREFOR, AND RECHARGEABLE ZINC BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/058268
Kind Code:
A1
Abstract:
Provided is an LDH separator that enables further enhancement of the cycle characteristic of a battery. The LDH separator comprises: a porous substrate; and a surface layer that is provided to at least one surface of the porous substrate and that includes a layered double hydroxide (LDH) and/or a hydroxide-ion conductive layered compound, which is a layered double hydroxide (LDH)-like compound. The LDH separator has an ion conductivity of 1.0 mS/cm or more, and the adhesion between the surface layer and the porous substrate is 5.0 mN or more. The adhesion is a critical load value that is measured by performing micro-scratch testing on a surface including the surface layer of the LDH separator, according to protocol JIS R3255-1997, under the conditions of a scratching speed of 10 μm/s, a diamond-indenter needle tip radius of curvature of 25 μm, a load application speed of 30 mN/min, an excitation amplitude of 50 μm, and an excitation frequency of 45 Hz.
Inventors:
ONO SHUMPEI (JP)
INUKAI NAOKO (JP)
YOKOYAMA SHOHEI (JP)
INUKAI NAOKO (JP)
YOKOYAMA SHOHEI (JP)
Application Number:
PCT/JP2022/022633
Publication Date:
April 13, 2023
Filing Date:
June 03, 2022
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
H01M50/434; B32B5/24; B32B9/00; C01F7/785; H01M8/1016; H01M10/30; H01M12/08; H01M50/403; H01M50/411; H01M50/414; H01M50/446; H01M50/449; H01M50/489; H01M50/497
Domestic Patent References:
| WO2017221497A1 | 2017-12-28 | |||
| WO2019131221A1 | 2019-07-04 |
Foreign References:
| JP2021077473A | 2021-05-20 |
Attorney, Agent or Firm:
TAKAMURA Masaharu et al. (JP)
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