disclosed is super water absorbent polymers applied to contain water , and the polymers may further collocate with water absorbent cotton materials to accelerate water absorbent rates . the described water absorbent materials are combined with solid hydrogen fuel to complete a stable hydrogen supply device . performance of the hydrogen supply device is not effected by inverting or tilting thereof . even if inverting or tilting the device , the water contained in the water absorbent materials does not flow out from the device . as such , the mea film in the fuel cell connected to the hydrogen supply device will not blocked by the water , thereby avoiding the fuel cell performance degradation even breakdown .