Tailoring the Electrochemical Performance of SnO₂‐Based Anodes for Li‐Ion Batteries: Effect of Morphology and Composite Matrix

Abstract Three different composite anodes, based on SnO 2 , are investigated as potential anode materials for lithium‐ion batteries. Three different strategies have been employed to stabilize SnO 2 upon cycling, i.e., i) use of an inorganic matrix (TiO 2 ), ii) use of an amorphous carbon matrix, and iii) use of SnO 2 with a tailored morphology (nanorod) and a carbon coating. Specific capacities, ranging from 700 up to 1000 mAh g −1 , are obtained during galvanostatic cycles with high‐capacity retentions. Furthermore, this work sheds light on the interfacial and transport properties of such electrode materials, given by cyclic voltammetry at different scan rates, galvanostatic intermittent titration technique, and electrochemical impedance spectroscopy.