Title:
NEGATIVE ELECTRODE AND ZINC SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/188496
Kind Code:
A1
Abstract:
The present invention provides a negative electrode that enables a zinc secondary battery to have a prolonged cycle service life. This negative electrode is used in a zinc secondary battery and comprises: a negative electrode active material that contains ZnO particles and Zn particles; and a binder that is a mixture of binder particles, which are formed from a binder resin, and binder fibers, which are formed from a binder resin. In an image analysis of the negative electrode, the average fiber diameter of the binder fibers is 0.05-0.17 μm, and the fiberization rate, which is the ratio of the area of the binder fibers to the total area of the binder particles and the binder fibers, is 20-70%.
Inventors:
NAGASAKA RYUJIRO (JP)
SHIMIZU SOTA (JP)
HIRAIWA TOSHIKI (JP)
SHIMIZU SOTA (JP)
HIRAIWA TOSHIKI (JP)
Application Number:
PCT/JP2022/040190
Publication Date:
October 05, 2023
Filing Date:
October 27, 2022
Export Citation:
Assignee:
NGK INSULATORS LTD (JP)
International Classes:
H01M4/62; H01M4/24; H01M4/26; H01M4/38; H01M4/48; H01M4/52; H01M10/30; H01M12/08; H01M50/434; H01M50/446
Domestic Patent References:
| WO2020049902A1 | 2020-03-12 |
Foreign References:
| JP2017188213A | 2017-10-12 | |||
| JPS6191872A | 1986-05-09 | |||
| JPS5371234A | 1978-06-24 | |||
| JPS541843A | 1979-01-09 |
Attorney, Agent or Firm:
TAKAMURA Masaharu et al. (JP)
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