Alexander Man-Chung Leung

Title: Innovations of Alexander Man-Chung Leung

Introduction

Alexander Man-Chung Leung is a notable inventor based in Vancouver, Canada. He has made significant contributions to the field of electrochemical fuel cells and battery technology. With a total of three patents to his name, Leung's work showcases his expertise and innovative spirit.

Latest Patents

One of Leung's latest patents is a cathode electrode design for electrochemical fuel cells. This invention includes a membrane electrode assembly that features an anode electrode, a cathode electrode, and a polymer electrolyte membrane. The cathode consists of a first cathode catalyst sublayer with a first precious metal catalyst composition and a first ionomer composition, which includes a first ionomer and a second ionomer. Additionally, there is a second cathode catalyst sublayer that includes a second precious metal catalyst composition and a second ionomer composition with a third ionomer. Notably, the first ionomer differs from the second ionomer in at least one of its chemical structure and equivalent weight.

Another significant patent by Leung is related to calendered double side segment coated webs. This invention discloses an improved design and manufacturing method for calendered, double side segment coated webs. By staggering the leading and/or trailing edges of the segment coatings on one side of the web from those on the other side, the invention reduces web damage, including breakage. Furthermore, it minimizes vibration and wear on the calendering apparatus, making it particularly useful for heavily calendered webs, such as electrodes in non-aqueous rechargeable lithium-ion batteries.

Career Highlights

Leung has worked with prominent companies in the industry, including E-One Moli Energy (Canada) Limited and Ballard Power Systems Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas.

Collaborations

Leung has collaborated with notable professionals in his field, including Jan Naess Reimers and Akiyoshi Manabe. These collaborations have contributed to the advancement of his projects and innovations.

Conclusion

Alexander Man-Chung Leung is a distinguished inventor whose work in electrochemical fuel cells and battery technology has led to significant advancements. His patents reflect his innovative approach and dedication to improving technology in these fields.