Abstract: The invention relates to a metal-air electrochemical cell comprising a frame (100) defining an electrolyte chamber having an anode side and a cathode side, wherein an air cathode assembly is provided in the cathode side, said air cathode assembly (20) comprising hydrophobic porous film having a first face and a second face, with current collector (21) and catalyst-containing active layer (26) provided on said first face, with the planar dimensions of the catalyst-containing active layer on said first face being smaller than that of said hydrophobic film and said current collector, such that the catalyst-containing active layer does not reach the edges of said hydrophobic film and said current collector, thereby creating a catalyst-free margin (27) on the hydrophobic film (31) and current collector which surrounds the catalyst-containing active layer, and wherein said first face of the hydrophobic film and said frame of the cell arm joined together by thermoplastic (101) applied onto the catalyst-free margin o
Type:
Grant
Filed:
June 6, 2019
Date of Patent:
March 21, 2023
Assignee:
OXENERGY LTD.
Inventors:
Yisrael Miler, Elad Shina, Aviel Danino, Irena Kobrin, Omri Feingold, Avi Melman, Joel Lang
Abstract: The invention relates to a metal-air electrochemical cell comprising a frame (100) defining an electrolyte chamber having an anode side and a cathode side, wherein an air cathode assembly is provided in the cathode side, said air cathode assembly (20) comprising hydrophobic porous film having a first face and a second face, with current collector (21) and catalyst-containing active layer (26) provided on said first face, with the planar dimensions of the catalyst-containing active layer on said first face being smaller than that of said hydrophobic film and said current collector, such that the catalyst-containing active layer does not reach the edges of said hydrophobic film and said current collector, thereby creating a catalyst-free margin (27) on the hydrophobic film (31) and current collector which surrounds the catalyst-containing active layer, and wherein said first face of the hydrophobic film and said frame of the cell arm joined together by thermoplastic (101) applied onto the catalyst-free margin o
Type:
Application
Filed:
June 6, 2019
Publication date:
July 22, 2021
Applicant:
OXENERGY LTD.
Inventors:
Yisrael MILER, Elad SHINA, Aviel DANINO, Irena KOBRIN, Omri FEINGOLD, Avi MELMAN, Joel LANG