Construction and Operating Mechanism of High‐Rate Mo‐Doped Na<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub>@C Nanowires toward Practicable Wide‐Temperature‐Tolerance Na‐Ion and Hybrid Li/Na‐Ion Batteries
Longwei Liang, Xiaoying Li, Fei Zhao, Jinyang Zhang, Yang Liu, Linrui Hou, Changzhou Yuan
Abstract
Abstract The growing demand for cost‐efficiency and safe energy storage systems has stimulated enormous interest worldwide in advanced cathodes for practicle “beyond‐Li‐ion” batteries. Herein, a feasible electrospinning/annealing avenue for the construction of 1D Mo‐doped Na 3 V 2 (PO 4 ) 3 nanowires in situ coated with carbon nanoshell (MNVP@C NWs) toward next‐generation Na‐ion batteries (NIBs) and hybrid Li/Na‐ion batteries (HLNIBs) as a high‐rate cathode material, is reported. Particularly, the intrinsic hybrid Li/Na‐ion storage mechanism of the MNVP@C NWs is unveiled for the HLNIBs with comprehensive characterizations. The resultant MNVP@C NWs demonstrate rapid electronic/ionic transport and rigid structural tolerance within operating temperatures from ‐25 to 55 °C, benefiting from its unique structural/compositional merits. More competitively, the MNVP@C NWs assembled pouch‐type NIBs (‐15 to 25 °C) and HLNIBs (‐25 to 55 °C) both exhibit remarkable wide‐temperature‐tolerance electrochemical properties in terms of high‐rate capabilities and long‐duration cycling lifespan, along with material‐level energy densities of ≈262.4 and ≈186.1 Wh kg ‐1 at 25 °C, respectively. The contribution here is expected to exert a stimulative impact upon the future design of versatile cathodes for advanced high energy/power rechargeable batteries.