LiBH4 has high hydrogen storage capacities, and could potentially serve as a superior hydrogen storage material. In its hydrolysis process, however, incomplete hydrolysis caused by the agglomeration of its hydrolysis product and un-reacted LiBH4 limits its full utilization. Furthermore, application of hydrogen generated from its aqueous solution for proton exchange membrane fuel cells (PEMFCs) has not been reported yet. In this paper, we firstly show that catalyzed by Pt/C, 22 wt.% LiBH4 alkaline solution can 100 % release its stoichiometric amount of hydrogen and can supply a 2.3 W PEMFC stack stably running. The overall power density of the PEMFC/LiBH4 solution system with Pt/C addition is 1020 WhL-1. The gravimetric hydrogen capacity of the LiBH4 solution is higher than that of 30wt.% NaBH4 and even higher than that of cryogenic liquid hydrogen storage system, presenting a promising liquid hydrogen storage materials for hydrogen fuel cells based vehicles application.  

Catalytic hydrogen generation from LiBH<sub>4</sub> solution for a 2.3 W scale micro proton exchange membrane fuel cell application

243rd National Meeting (2012)

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Catalytic hydrogen generation from LiBH4 solution for a 2.3 W scale micro proton exchange membrane fuel cell application

Catalytic hydrogen generation from LiBH₄ solution for a 2.3 W scale micro proton exchange membrane fuel cell application