A liquid feed fuel cell system having a unique fuel container and delivery
assembly is provided. The container and delivery assembly allows liquid
fuel which, in a preferred embodiment, is in the form of either pure
methanol or an aqueous methanol/water mixture, to be placed under
pressure so that it is delivered to the cell in a continuous manner. The
fuel substance is stored in a flexible bladder that is housed in an outer
container. The inner flexible bladder containing the fuel is fitted with
a for supplying instrument that compresses the flexible bladder such that
the fuel is expressed through a conduit in the container, to the direct
oxidation fuel cell in a continuous manner. Other embodiments include the
force-applying instrument being employed in a fuel cell system that
includes inlet and outlet ports.