Not all fuel cells use platinum, and those that do use very small amounts of it: https://www.cnet.com/roadshow/news/bosch-ev-fuel-cells-less-platinum-report/ ht

Not all fuel cells use platinum, and those that do use very small amounts of it: https://www.cnet.com/roadshow/news/bosch-ev-fuel-cells-less-platinum-report/ https://www.cnet.com/roadshow/news/bosch-ev-fuel-cells-less-... > The major auto supplier, which recently partnered with Sweden's Powercell, is working on a new fuel cell architecture that, according to Reuters' report, will "use only as much platinum as a diesel catalytic converter."