期刊
ADVANCED ENERGY MATERIALS
卷 11, 期 21, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.202100287
关键词
high-rate cathodes; hybrid Li/Na-ion batteries; Mo-doped Na3V2(PO4)(3) nanowires; Na-ion batteries; wide-temperature-tolerance
类别
资金
- National Natural Science Foundation of China [51772127, 51772131, 51904115, 52072151]
- Major Program of Shandong Province Natural Science Foundation [ZR2018ZB0317]
- Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of Shandong
- [ts201712050]
The paper introduces a new method for constructing 1D Mo-doped Na3V2(PO4)(3) nanowires coated with carbon nanoshell for high-rate cathode material in next-generation Na-ion batteries and hybrid Li/Na-ion batteries. The research reveals the hybrid Li/Na-ion storage mechanism of the nanowires and demonstrates their exceptional performance within a wide temperature range through comprehensive characterizations.
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 Na3V2(PO4)(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 degrees C, benefiting from its unique structural/compositional merits. More competitively, the MNVP@C NWs assembled pouch-type NIBs (-15 to 25 degrees C) and HLNIBs (-25 to 55 degrees 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 approximate to 262.4 and approximate to 186.1 Wh kg(-1) at 25 degrees 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.
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