Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ZINC NEGATIVE ELECTRODE AND MANUFACTURING METHOD THEREFOR, AND SECONDARY CELL COMPRISING SAID ZINC NEGATIVE ELECTRODE AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2021/161900
Kind Code:
A1
Abstract:
Provided are: a zinc negative electrode having exceptional repeating resistance, and excellent charge/discharge cycling characteristics even at a high charge/discharge rate; a manufacturing method therefor; a secondary cell using the zinc negative electrode; and a manufacturing method therefor. A zinc negative electrode used in a secondary cell, wherein the zinc negative electrode comprises: an active material part in which zinc is generated during charging, and oxidized zinc is generated during discharging, the zinc being used as a negative electrode active material; a collector that is electrically connected to the active material part; and a non-electron-conductive reaction space restriction part that is integrally formed with or connected to the collector and/or the active material part. The reaction space restriction part has a plurality of electrolyte-holding parts comprising a space that can hold a liquid electrolyte.

Inventors:
MORIMITSU MASATSUGU (JP)
Application Number:
PCT/JP2021/004186
Publication Date:
August 19, 2021
Filing Date:
February 04, 2021
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
THE DOSHISHA (JP)
DOWA HOLDINGS CO LTD (JP)
International Classes:
H01M4/24; H01M4/26; H01M4/86; H01M4/88; H01M4/90; H01M12/08
Foreign References:
JPS58186162A1983-10-31
JP2019179592A2019-10-17
Other References:
OKUMURA TAKUYA: "2E05 Charge-discharge cycling performance of novel zinc electrode for aqueous secondary batteries", LECTURE ABSTRACTS OF THE 60TH BATTERY SYMPOSIUM IN JAPAN; NOVEMBER 13 - 15, 2019, 14 November 2019 (2019-11-14), JP, pages 1, XP009530457
MARTÍNEZ-CORONADO R.; ALONSO J.A.; CASCOS V.; FERNÁNDEZ-DÍAZ M.T.: "Crystal and magnetic structure of the Bi2RuMn07 pyrochlore: A potential new cathode for solid oxide", JOURNAL OF POWER SOURCES, vol. 247, 18 September 2013 (2013-09-18), CH, pages 876 - 882, XP028760224, ISSN: 0378-7753, DOI: 10.1016/j.jpowsour.2013.08.125
KINO SHIZUKI: "3G19 effects of preparation method an internal structure of bi-functional oxygen electrode on polarization behaviors of aqueous air secondary battery", LECTURE ABSTRACTS OF THE 59TH BATTERY SYMPOSIUM IN JAPAN, 26 November 2018 (2018-11-26), pages 431, XP009530456
Attorney, Agent or Firm:
SUGIMURA Kenji (JP)
Download PDF: