Anode Materials for Sodium‐Ion Capacitors

Anode material serves a vital role in the fabrication of high-performance sodium-ion capacitors (SICs). The various categories, electrochemical storage behaviors, and detailed physicochemical properties of anode materials have been summarized in this chapter. Moreover, the differences between capacitor-type anode and battery-type anode have also been emphatically discussed. Significantly, the clear structure-performance relationship of anode materials is systematically elucidated, which is aimed at directionally desgining the desired anode materials of SICs.