Electrochemistry and Structural Chemistry of Li[CrTi]O[sub 4] (Fd3m) in Nonaqueous Lithium Cells

having a spinel‐framework structure was prepared and examined in nonaqueous lithium cells. cells showed the flat operating voltages of 1.50 V and rechargeable capacity of 150 mAh/g. The X‐ray diffraction examinations in this region indicated that was reduced to in a topotactic manner. Electrochemical oxidation of was also examined. Redox potential of 4.7 V vs. Li was observed while reversibility was poor due to the destruction of crystallite. Differences and similarities between and were discussed with respect to operating voltage, reversibility, and insertion scheme. © 2000 The Electrochemical Society. All rights reserved.