Zhaoxiang Wang

Abstract:

Electrochemical conversion is an important path through which realizes high specific storage capacity of, for example, lithium ions. Such reactions were supposed to be reversible and have been observed in compounds of transition metals. This report will show that the reaction paths and products are highly dependent on the kinetic as well as thermodynamic properties of the electrode, such as particle size and conductivity of the material. In addition, we will demonstrate that conversion reaction is also an important method to obtain high-performance electrode materials that are difficult to synthesize by conventional chemical reactions. By selecting the starting materials and optimizing the reaction conditions, some inert metals can be oxidized and, therefore, provide high reversible lithium storage capacities. In some other cases, novel lithium storage materials can be electrochemically synthesized that deliver very high lithium storage capacities.