Overcoming Rate-determining Kinetics of Na3V2O2(PO4)2F Cathode for Ultrafast Sodium Storage by Heterostructured Dual-Carbon Decoration Xiangyi Li, Shuli Jiang, Shiyu Li, Junyi Yao, Yue Zhao, Tariq Bashir, shaowen Zhou, Shiqi Yang, Wenhao Zhu, Tingting Liu, Jianqing Zhao and Lijun Gao Abstract Sodium-ion batteries have been intensely developed as cost-effective alternatives to current lithium-ion batteries for large-scale applications, especially in energy storage systems and low-speed...