Title:
NEGATIVE ELECTRODE PLATE AND ZINC SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2024/075350
Kind Code:
A1
Abstract:
The present invention provides a negative electrode plate that enables a zinc secondary battery to have a prolonged cycle service life. This negative electrode plate is for use in a zinc secondary battery, and contains a polymer and a negative electrode active material that contains ZnO particles and Zn particles. This negative electrode plate has a normal reaction region and a reaction suppression region where the concentration of the polymer is higher than that in the normal reaction region; and if this negative electrode plate is divided into three equal parts in the thickness direction and the three equal parts are defined as an inner layer, a first surface layer and a second surface layer, the surface layers being positioned on the outer side of the inner layer, the inner layer belongs to the normal reaction region and the first surface layer belongs to the reaction suppression region.
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Inventors:
NAGASAKA RYUJIRO (JP)
SHIMIZU SOTA (JP)
HIRAIWA TOSHIKI (JP)
SHIMIZU SOTA (JP)
HIRAIWA TOSHIKI (JP)
Application Number:
PCT/JP2023/024222
Publication Date:
April 11, 2024
Filing Date:
June 29, 2023
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
H01M4/24; H01M4/38; H01M4/48; H01M4/52; H01M4/62; H01M10/30; H01M12/08; H01M50/434; H01M50/446
Domestic Patent References:
| WO2022118625A1 | 2022-06-09 |
Foreign References:
| JPS6477872A | 1989-03-23 |
Attorney, Agent or Firm:
TAKAMURA Masaharu et al. (JP)
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