Lithium manganese phosphate glass electrodes for potential use in novel lithium ion conducting batteries with an all solid construction are being investigated. The present proposal seeks to establish the lithium ion distribution and the role of manganese in a series of lithium mangansese metaphosphate glasses. Neutron scattering data on glasses containing Null-Li as well as naturally abundant Li will be used to establish the Li-Li correlations. Radial distribution functions T(r) and G(r) will be generated and fitted in two stages. Initially, short range correlations will be examined to establish coordination numbers and contact distances. Using this information a set of energy minimised structural models will be constructed for use as starting models for RMC fitting of the G(r) and S(Q) data to reveal detail of the longer range correlations.