Hydrogen generation by hydrolysis reaction of lithium borohydride

The hydrolysis reaction of LiBH4 with a stoichiometric amount of water had 5 times the H2 yield in comparison with that of using water exceeding the stoichiometric amount. The gravimetric and the volumetric hydrogen densities increased with increasing water added (H2O/LiBH4) followed by a decrease. Those densities had maximum values at H2O/LiBH4=1.3: gravimetric hydrogen density per unit weight of LiBH4 and H2O is 7.4 wt%, volumetric hydrogen density per unit weight of NaBH4 and H2O is 60 kgH2/m3. It can be used for a fuel cell uninterrupted power supply.