Kinetics study on intercalation pseudocapacitance of layered TiS2 in K-ion batteries

The boundary between a capacitor and a battery is vague for layered transition metal sulfides, especially when it comes to TiS2 with a multi-phase transition process. In this work we analyzed both the quasi-static process and dynamic process of K+ storage in TiS2 with carbonate based electrolytes, which proved to be an intercalation pseudocapacitive behavior.