E-one Moli Energy (canada) Limited

Ballard Power Systems Corporation

Alexander Man-Chung Leung

Jan Naess Reimers

Akiyoshi Manabe

Siyu Ye

Kyoung J Bai

Dustin William H Banham

Alan Young

A membrane electrode assembly including: an anode electrode; a cathode electrode; and a polymer electrolyte membrane; wherein the cathode includes a first cathode catalyst sublayer including a first precious metal catalyst composition and a first ionomer composition including a first ionomer and a second ionomer; and a second cathode catalyst sublayer including a second precious metal catalyst composition and a second ionomer composition including a third ionomer; wherein the first ionomer is different from the second ionomer in at least one of chemical structure and equivalent weight.

Cathode electrode design for electrochemical fuel cells

An improved design and manufacturing method is disclosed for calendered, double side segment coated webs. By staggering the leading edges and/or the trailing edges of the segment coatings on one side of the web from those on the other side, web damage, including the incidence of breakage, can be reduced. Further, vibration and wear on the calendering apparatus can be reduced. The invention is particularly useful for heavily calendered webs such as the electrodes in non-aqueous rechargeable lithium ion batteries.

Calendered double side segment coated webs

Growing community of inventors

Vancouver, Canada

Alexander Man-Chung Leung