2020 年 2020 巻 291 号 p. 9-14
Reducing the internal resistance in lithium-ion batteries is essential for the development of electric vehicles. In particular, reducing the lithium-ion transfer resistance between the electrode and the electrolyte interface is an important issue. In the case of graphite negative electrodes, a surface film formed by the reductive decomposition of electrolyte solutions makes the structure of the interface rather complex. Therefore, a fundamental study of the interfacial lithium-ion transfer resistance is important. This review focusses on the activation barrier for interfacial lithium-ion transfer, and findings at the graphite negative electrode are introduced.