The dangers of safely storing hydrogen in a vehicle are often a point of criticism or caution when looking towards a hydrogen economy, until a potential solution developed this summer.

FST Energy has revealed its FST Fuel Cassette, storing hydrogen in an absorbent material contained in a cartridge. The cartridge contains a catalyst that could absorb and release hydrogen molecules, while refueling couldn't be simpler. Instead of connecting to the pump and filling-up, the cartridge could simply be removed and replaced by for a full one in exchange.

FST is also developing another concept for refuelling with the addition of its DC3 stack. Including an electrolyser that splits water into oxygen and hydrogen, the DC3 stack can be plugged in overnight and provide a full, replenished hydrogen cartridge by morning.