Stability study of transition metal oxide electrode materials

Abstract

The continuous development in energy conversion and storage and the development and evaluation of abundant and inexpensive electrode materials with good electrochemical properties aim to meet future results. Electrochemical materials are the critical issue that directly affects electrochemical performance. Transition metal oxides (TMOs) have become excellent electrode materials in recent years because of their low cost and good electrical conductivity. However, the charge storage mechanism of TMOs electrodes involves redox, conversion, and intercalation. Significant volume expansion occurs during electrochemical reactions and poor long-term cycling ability. The stability of TMOs electrodes seriously affects their practical applications. Given this, the objectives of this review are as follows:(1) The main factors affecting material stability; (2) Discussion on enhancing stability research through material structure design and synthesis methods; (3) Inductive structure and method to solve the common mechanism of stability method; (4) Propose the trend of rationally constructing electrode materials for electrochemical field stability. The final part of the review assesses the response to putting these technologies into practice. The final part of the review is a critical assessment of the reactors that can be used to put these technologies into practice.