The electrical conductivity of lithium orthophosphates was investigated as a function of the nature of the transition-metal cation. LiMPO4 (M = Mn, Co, Ni) compounds and their derivatives were investigated. The enhancement in ionic conductivity appeared for compounds containing Mn cations. A relationship between crystal structure and ionic conductivity was established.

Electrical Conductivity in Lithium Orthophosphates. K.Rissouli, K.Benkhouja, J.R.Ramos-Barrado, C.Julien: Materials Science and Engineering B, 2003, 98[3], 185-9