热处理实现锌金属晶面择优取向提升电化学性能的综合实验设计

Comprehensive Experimental Design of Preferential Orientation of Zinc Metal by Heat Treatment for Enhanced Electrochemical Performance

水系锌金属电池由于其安全性高、低成本等优点,在电化学储能领域内具有广阔的前景。然而,锌负极在沉积/剥离过程中的副反应阻碍了实际应用。本实验通过简单的热处理调控锌金属的结晶学取向,探究了晶面取向对于电化学性质的影响。本实验将晶体化学与电化学相结合,从前沿研究出发设计综合实验,激发学生对科研的兴趣。

Aqueous zinc metal batteries have promising potentials in electrochemical energy storage due to their inherent safety and low cost.However,their practical application is hindered by side reactions during Zn deposition/stripping.In this experiment,we report a simple heat treatment to achieve preferred orientation of the Zn(002)plane in Zn foils.Then,the effect of this change on electrochemical properties is evaluated.This experiment is closely related to the cutting-edge research topics based on crystal chemistry and electrochemistry,which would greatly inspire students’interest in scientific research.