Development and Prospect of Oxide Cathode Materials for High Temperature Lithium Batteries

High temperature lithium battery is the development of low temperature applications of thermal batteries, and has large potential development and utilization in the oil/gas and geothermal field. Compared with the lithium alloy anode materials with large specific capacity and close to the pure lithium electrode potential, the cathode materials are pivotal section of high temperature lithium battery and have large potential space. In the cathode materials, the oxide materials exhibit high voltage characteristics and high thermal stability, and the high-temperature lithium battery can be miniaturized to meet the current voltage supply under the specific conditions. However, there is no systematic overview about the oxide of high-temperature lithium battery currently. In order to make more development in this field and promote the optimal adjustment of energy structure, this paper introduces and summarizes the transition metal oxides used in high-temperature lithium battery, including physical properties, electrochemical properties and synthesis or preparation methods. We describe the excellent properties of various oxide materials in detail, and point out the shortcomings and the existing problems of the material. Moreover, this paper predicts the development of oxide cathode materials, and demonstrates the future direction of development and the work to be done. We hope that this work can provide some reference for the relevant researchers.