广州化学2024，Vol.49Issue(1)：49-55,7.DOI:10.16560/j.cnki.gzhx.20240106
锌离子化海泡石涂层锌负极的制备与性能
Preparation and Properties of Zinc Anode with Zinc Ionized Sepiolite Coating
蒋瑞 1陈泰强1
作者信息
- 1. 上海理工大学 材料与化学学院,上海 200093
- 折叠
摘要
Abstract
Zinc ionized sepiolite(Zn-Sep)was prepared via acid activation and ion exchange method,and coated onto the surface of zinc anode as an artificial solid electrolyte interphase(SEI)layer.The structure and morphology of Zn-Sep were characterized by XRD,IR and SEM.The results showed that Zn-Sep coating not only reduced the occurrence of side reactions on zinc anode,but also facilitated uniform and rapid zinc ion migration through its evenly distributed zinc ion transport channels and high zinc-ion transference number(t(Zn2+)= 0.55),enabling dendrite-free zinc anodes.Zn-Sep@Zn symmetric cells exhibited low overpotentials(21 mV)at 1 mA/cm2 and 1 mAh/cm2 and could cycle stably for over 300 hours,even under high current conditions of 5 mA/cm2,Zn-Sep@Zn maintained low overpotential and worked normally.Zn-Sep@Zn|NVO full cells assembled with NVO cathodes exhibited excellent cycling stability after 150 cycles at 0.5 A/g.关键词
锌离子电池/海泡石/改性/锌负极/涂层Key words
zinc ion battery/sepiolite/modification/zinc anode/coating分类
信息技术与安全科学引用本文复制引用
蒋瑞,陈泰强..锌离子化海泡石涂层锌负极的制备与性能[J].广州化学,2024,49(1):49-55,7.
