4.7 Article

Dendrite-free Zn anodes enabled by a hierarchical zincophilic TiO2 layer for rechargeable aqueous zinc-ion batteries

期刊

APPLIED SURFACE SCIENCE
卷 606, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.apsusc.2022.154932

关键词

Aqueous Zinc -ion batteries; Dendrite -free anodes; Mesoporous TiO 2; Zincophilic layer; Hierarchical structure

资金

  1. National Research Foundation of Korea (NRF) - Korea Government [NRF- 2021R1A4A1030318, NRF-2022R1C1C1011386, NRF- 2020M3H4A1A03084258]
  2. National Research Foundation of Korea [2020M3H4A1A03084258] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

向作者/读者索取更多资源

This study presents a novel approach to reduce dendrite growth and improve the electrochemical performance of aqueous zinc ion batteries (ZIBs) by employing mesoporous zincophilic TiO2 nanoparticles to construct a hierarchical nanostructured layer. The battery with this dendrite-free ZIB anode demonstrates excellent capacity and high coulombic efficiency after ultralong cycle life, indicating its potential as a reliable and safe energy device in the field of large-scale energy storage solutions.
Aqueous zinc ion batteries (ZIBs) have received significant attention owing to their low cost, high energy density, good safety, and environmental friendliness. However, the unavoidable growth of dendrites during uneven stripping/plating of Zn and extreme polarization hinders the practical application of zinc ion batteries. Herein, we report a dendrite-free ZIB anode via mesoporous zincophilic TiO2 nanoparticle to construct a hierarchical nanostructured layer and to chemically accommodate the formation of Zn dendrite. This hierarchical zincophilic TiO2 layer on the Zn surface (hmTO-Zn) plays a crucial role in contributing to reduce dendrite growth and significantly improves the electrochemical performance of ZIBs. Ultralong cycle life and high rate performance are demonstrated in hmTO-Zn|Zn(CF3SO3)2|V2O5 rechargeable aqueous ZIBs. A battery with an hmTO-Zn electrode delivers excellent capacity (102 mAh/g) at a high current density (5000 mA g-1) after ultralong life (5000 cycles) with almost 100 % coulombic efficiency compared to a battery with a bare zinc anode (44 mAh/g after 5000 cycles). These results give a novel approach necessary to improve ZIBs further to make it a worthy and safe energy device in field of large scale energy storage solutions.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据