we propose deep inelastic neutron scattering measurements on VESUVIO to investigate the short time proton dynamics in Li2NH. The latter belongs to the Li-H-N system, which has been recently considered for on-board hydrogen storage applications. Theoretical studies found in the ground state a strong delocalisation of the proton over the six equivalent octahedral sites (24e) surrounding the N ions, resulting in a Fm-3m structure. This calculations were made assuming a frozen ionic sub-lattice. As this is a good approximation only at low temperatures, it would be of great interest to examine experimentally this system at a number of different temperatures, including the thermally-assisted hopping regime, where the interaction of the protonic subsystem with the lattice phonons becomes relevant. To this aim, we propose DINS measurements at three different temperatures, namely 4K,300K and 400K