Chem. Commun., 2025, Advance Article DOI: 10.1039/D5CC04419G, Communication Dafu Tang, Zhangbin Xie, Xia Zou, Zerui Yan, Qiulong Wei The as-synthesized TiO2(R) nanorod clusters from low-cost CaTiO3 deliver pseudocapacitive behavior for high-rate sodium-ion storage.