Low-temperature lithium-ion batteries: challenges and progress of surface/interface modifications for advanced performance.

Lithium-ion batteries are in increasing demand for operation under extreme temperature conditions due to the continuous expansion of their applications. A significant loss in energy and power densities at low temperatures is still one of the main obstacles limiting the operation of lithium-ion batteries at sub-zero temperatures. In addition to electrodes and electrolytes, more attention should be paid to the electrode-electrolyte interface, considering that the total internal resistance of batteries at low temperatures is dominated by interfacial charge transfer resistance. Here, we first review the main interfacial processes in lithium-ion batteries at low temperatures, including Li + solvation or desolvation, Li + diffusion through the solid electrolyte interphase and electron transport. Then, recent progress on the electrode surface/interface modifications in lithium-ion batteries for enhanced low-temperature performance is presented in detail. The lasting challenges and perspectives regarding electrode/electrolyte interface control in low-temperature lithium-ion batteries are finally discussed.