Chem. J. Chinese Universities ›› 2025, Vol. 46 ›› Issue (10): 20250105.doi: 10.7503/cjcu20250105

• Physical Chemistry • Previous Articles     Next Articles

Construction of Lanthanide-based Corrosion-resistant Films for Aqueous Zinc Batteries with Ultra-long Cycle Life

GOU Lei(), SUN Aihong, LIANG Kai, WANG Yanjing, FAN Xiaoyong(), LI Donglin   

  1. School of Materials Science and Engineering,Chang’an University,Xi’an 710061,China
  • Received:2025-04-11 Online:2025-10-10 Published:2025-08-01
  • Contact: GOU Lei, FAN Xiaoyong E-mail:leigou@chd.edu.cn;xyfan@chd.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(22179011);the Xianyang Qinchuangyuan Science and Technology Innovation Project, China(L2022-QCYZX-GY-005);the Key Research and Development Program of Shaanxi Province, China(2023-YBGY-445);the Special Scientific Research Project for Local Service, Shaanxi Province Education Department, China(22JE001);the Fundamental Research Funds for the Central Universities, CHD, China(300102315501)

Abstract:

Herein, a lanthanum-based corrosion-resistant film(LaCRF) was grown on the surface of the zinc anode, which effectively reduced the nucleation overpotential of zinc ions and significantly inhibited the formation of zinc dendrites, substrate corrosion, and by-products. Electrochemical performance tests indicate that symmetric cells modified with LaCRF exhibit over 3000 h of cycling stability and minimal polarization at a current density of 2 mA/cm2-1 mA·h/cm2. Furthermore, in Zn@LaCRF||Cu half-cell, the cycle life exceeds 800 cycles; meanwhile, in Zn@LaCRF||MnO2 full cell, the capacity retention rate remains as high as 91.9% after 2000 cycles at a current density of 1.8 A/g. This achievement not only provides a new solution for addressing the corrosion issues of zinc anodes but also paves a new direction for the application of rare earth elements in rechargeable aqueous zinc batteries.

Key words: Aqueous zinc battery, Zinc anode, Corrosion resistant film, Rare earth element, Long cycling performance

CLC Number: 

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