Achieving Efficient Sodium Storage on Carbon Anodes with Ether-Derived Solid Electrolyte Interphase (SEI)

The development of promising anode materials is also a critical challenge for the application of SIBs, since graphite unfortunately delivered limited capacity around 50 mA h g−1 in commonly used ester-based electrolytes. Carbon materials are still the most widely accepted anode choice, due to their advantages such as low cost and abundance, environmental benignity and facile production, high electrochemical activity, controllable microstructure and surface chemistry.