We ask for 8 days on VESUVIO to study the momentum distribution of LiBH4, Li2NH and Li1+xNH2-x as a function of temperature from 10K-653K (depending on sample). Li2NH and Li1+xNH2-x may reversibly store hydrogen under relatively facile conditions, whereas LiBH4 requires elevate pressures and temperatures. We believe this to be a consequence of bulk Li+ and H+ mobility and disorder. LiBH4 also undergoes a superionic transition at 395K but whereas the delta +ve hydrogen in Li2NH diffusively follows Li+, in LiBD4, the delta -ve hydrogen remains attached to the BH4- unit which freely spins. To support this hypothesis we wish to investigate the temperature resolved disorder of three systems; LiBH4, which undergoes a order-disorder transition at ~393k; Li2NH, which undergoes a second-order order-disorder transition above 360K; and Li1+xNH2-x which is a disordered solid.