化学反应和结晶控制的电化学储能电极材料
摘要
Microstructure, size and shape of electrode materials directly affect the performance of electrochemical energy storage devices, such as energy density, power density, and life. The synthesis of high-performance active electrode material is an important factor to enhance the device performance. In the synthesis process, chemical reaction and crystallization are important steps to obtain electrode material. By controlling the chemical reaction or crystallization processes, the electrode material with different activities can be formed. Herein, we will discuss chemical reactions involved in material preparation and the electrochemical reactions involved in energy storage. Due to the progress of synthesis method, various electrode materials with different morphologies, structures and performances have been synthesized. However, we still lack a deep understanding of how chemical reactions control crystallization, and how the crystallization processes affect the electrochemical properties of electrode material. In this review, we firstly study the chemical reaction controlled crystallization and crystallization controlled electrochemical performance, and then display the chemical reaction-crystallization relationship, crystallization-electrochemical performance relationship and chemical reactions- performance relationship, and show the routes to improve the performance of the energy storage materials.