Lithium-substituted cobalt oxide spinels Li<inf>x</inf>M<inf>1-x</inf>Co<inf>2</inf>O<inf>4</inf> (M = Co²⁺, Zn²⁺; 0 ≤ x ≤ 0.4)

Substitution of Li+ into Co3O4 and ZnCo2O4 gives rise to the solid solution series LixM1-xCo2O4 (M = Co2+ or Zn2+) having the spinel structure upto x = 0.4. X-Ray diffraction intensities show that the spinel solid solutions are likely to have the following cation distributions: (Co2+)t[Li+xCo3+2-3xCo4+2x]0O4 and (Zn2+1-xCo2+x)t[Li+xCo3+2-3xCo4+2x]0O4. Electrical resistivity and Seebeck coefficient data indicate that the electron transport in these systems occurs by a small-polaron hopping mechanism. © 1981.