材料科学
锌
同种类的
纳米颗粒
水溶液
沉积(地质)
兴奋剂
化学工程
碳纤维
无机化学
纳米技术
冶金
复合材料
复合数
光电子学
有机化学
古生物学
化学
物理
沉积物
生物
工程类
热力学
作者
Bixia Wang,Jiayi Hao,Hui Xu,Minxi Sun,Chun Wu,Wei Qin,Xingqiao Wu,Qiliang Wei
标识
DOI:10.1021/acsami.4c07396
摘要
Currently, inhomogeneous distribution of Zn2+ on the surface of the Zn anode is still the essential reason for dendrite formation and unsatisfactory stability of zinc ion batteries. Given the merits of strong interaction between Sn and Zn, as well as a low nucleation barrier during Zn deposition, the combination of metallic Sn with carbon material is expected to improve the deposition of zinc ions and inhibit the growth of zinc dendrites by guiding the homogeneous plating/stripping of zinc on the electrode surface. In this article, zincophilic Sn nanoparticles with low nucleation barriers and strong interaction with Zn2+ were embedded into 3D N-doped carbon nanofibers using a simple electrostatic spinning technique. Accordingly, when serving as an artificial coating layer for the zinc metal anode, an ultrastable Sn@NCNFs@Zn||Sn@NCNFs@Zn symmetric cell can be achieved for over 3500 h with a low nucleation overpotential of 29.1 mV. Significantly, the full cell device assembled with the as-prepared anode and MnO2 cathode exhibits desirable electrochemical behaviors. Moreover, this simple method could be extended to other metal–carbon composites, and to ensure ease in scaling up as required. Such significant approach can provide an effective strategy for the design of high-performance zinc anodes.
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