This paper presents the high temperature measurements of electrical conduct
ivity and thermoelectric power of LiMn2O4 as a function of temperature (870
-1070 K) and oxygen pressure (2.10(-6)-1 atm) in thermodynamic equilibrium
conditions in order to assess the structure of point defects in this materi
al. The electrical properties have been analysed with reference to those co
ncerning deviation from stoichiometry. (C) 1999 Elsevier Science B.V. All r
ights reserved.