Electrode materials with high specific capacities have attracted growing interest to meet the ever-increasing demands for high-energy-density secondary batteries. However, lithium is inevitably consumed during cycling due to various side reactions as well as formation of solid electrolyte interphases in the first few cycles. Therefore, lithium compensation is of significance in enhancing the energy density of a battery and prolonging its cycle life. This review summarizes the research advances in lithium compensation before presenting some of our own efforts in developing new strategies and exploring new mechanisms in electrochemical and chemical prelithiation. Finally, prospects are made for future research of lithium compensation strategies.



