Disclosed herein are an electrochemical system, a hydrogen gas fueling
system, a cascade system, and methods for using the same. The hydrogen
gas fueling system comprises a multiple-stage compressor disposed in
fluid communication with a hydrogen gas source, the compressor configured
to cool hydrogen gas received at a stage of the compressor, a cascade
section comprising at least two hydrogen gas storage zones disposed in
fluid communication with the compressor at the outlet of the compressor,
and a hydrogen gas dispensing section disposed in fluid communication
with the cascade section.