FUEL CELL SYSTEM

摘要

A complete fuel cell system (10) is described. The: fuel cell system (10) comprises at least two fuel precursors (16, 18) that react to create hydrogen. A solid fuel precursor (18) can be carried in disposable fuel cartridges (100). A passive pressure control system including a dose pump (22) and a pressure equalization system (24, 300, 504) is provided to dose a liquid fuel precursor (16) to the solid fuel precursor (18) in the fuel cartridge (100). An outer wall (102) of the fuel cartridge can form a part of the passive pressure control system. The solid fuel precursor may include larger metallic particles coated by other fine metallic particles such that multiple micro galvanic cells are formed on the surface of the larger metallic particles.