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High-performance aqueous symmetric sodium-ion battery using NASICON-structured Na2VTi(PO4)3

         

摘要

A high-safety and low-cost route is important in the development of sodium-ion batteries,especially for large-scale stationary battery systems.An aqueous sodium-ion battery is demonstrated using a single NASICON-structured Na2VTi(PO4)3 material with the redox couples of V4+/V3+ and Ti4+/Ti3+ working on the cathode and anode,respectively.The symmetric full cell fabricated based on the bi-functional electrode material exhibits a well-defined voltage plateau at ~ 1.2 V and an impressive cycling stability with capacity retention of 70% exceeding 1,000 cycles at 10C (1C =62 mA.g-1).This study provides a feasible strategy for obtaining high-safety and low-cost rechargeable batteries using a single active material in aqueous media.

著录项

  • 来源
    《纳米研究(英文版)》 |2018年第1期|490-498|共9页
  • 作者单位

    Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China;

    Department of Mechanical Engineering, National University of Singapore, Singapore 117576, Singapore;

    College of Light Industry and Chemical Engineering, Guangdong University of Technology, Guangzhou 510006, China;

    Centre for Clean Environment and Energy, Environmental Futures Research Institute and Griffith School of Environment, Gold Coast Campus, Griffith University, QLD 4222, Australia;

    Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China;

    College of Light Industry and Chemical Engineering, Guangdong University of Technology, Guangzhou 510006, China;

    Centre for Clean Environment and Energy, Environmental Futures Research Institute and Griffith School of Environment, Gold Coast Campus, Griffith University, QLD 4222, Australia;

    School of Advanced Materials, Peking University, Shenzhen Graduate School, Shenzhen 518055, China;

    Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310027, China;

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