材料科学
阳极
电解质
纳米技术
金属
涂层
铜
枝晶(数学)
润湿
化学工程
脚手架
电极
复合材料
冶金
工程类
几何学
生物医学工程
物理化学
化学
医学
数学
作者
Zhijia Zhang,Xu Yang,Peng Li,Xiaojing Yao,Xin Zhao,Javad Safaei,Hao Tian,Dong Zhou,Baohua Li,Feiyu Kang,Guoxiu Wang
标识
DOI:10.1002/adma.202206970
摘要
Rechargeable multivalent metal (e.g., zinc (Zn) and aluminum (Al)) batteries are ideal choices for large-scale energy storage owing to their intrinsic low cost and safety. However, the poor compatibility between metallic anodes and electrolytes strongly hampers their practical applications. Herein, it is demonstrated that confining multivalent metals in a biomimetic scaffold (Bio-scaffold) can achieve highly efficient multivalent metal plating/stripping. This Bio-scaffold is well-tailored through the synergy of a parallel-aligned array of fractal copper branches and a CaTiO3 (CTO)-based coating layer. By virtue of this design strategy, the as-developed Bio-scaffold-based Zn- and Al-metal anodes exhibited dendrite-free morphologies with high reversibility and long lifespan, as well as excellent performance for Zn and Al full batteries. Theoretical modeling and experimental investigations reveal that the fractal copper array not only facilitates multivalent ion diffusion and electrolyte wetting but also effectively reduces the local current densities during cycling; Meanwhile, the CTO-based coating layer effectively blocks interfacial side reactions and enables a homogeneous ionic flux. This work opens a new avenue for developing multivalent metal batteries.
科研通智能强力驱动
Strongly Powered by AbleSci AI