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

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＋ worki...

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Bibliographic Details
Published in纳米研究：英文版 Vol. 11; no. 1; pp. 490 - 498
Main Author Hongbo wang;Tianran Zhang;Chao Chen;Min Ling;Zhan Lin;Shanqing Zhang;Feng Pan;Chengdu Liang
Format Journal Article
LanguageEnglish
Published 2018
Subjects
NASICON;钠离子电池;节水;组织;对称;氧化还原作用;电极材料;电池系统
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Summary: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.
Bibliography: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.
11-5974/O4
Na2VTi（PO4） 3,aqueous,symmetric,sodium-ion batteries
ISSN:1998-0124
1998-0000