The polymer was designed with a better understanding of film properties at the micro level. As a result, the film thickness could be reduced to 5 micrometers, 1/5 of that of conventional unreinforced membranes. The novel electrolyte thin film has a durability of 5 times or more in dry/wet cycles. Thinning the electrolyte membrane increases membrane permeation for hydrogen and causes a decrease in fuel consumption and increase of performance of the fuel cell system.

JST news release, September 4, 2018