Functionalization design of zinc anode for advanced aqueous zinc-ion batteries

Abstract

Rechargeable aqueous zinc-ion batteries (AZIBs) offer high energy density, low cost, and are environmentally friendly, rendering them potential energy storage devices. However, dendrite growth on the zinc anode and numerous side reactions during operation challenge their commercialization. Recent advancements have introduced various materials for the functionalization of zinc anodes. These developments effectively mitigate the performance degradation of zinc anode, enhancing both its cycle stability and the overall performance of AZIBs. Herein, the construction of functionalized zinc anodes is discussed, current materials (including organic, inorganic and their composites) for modified zinc anodes are categorized, and the protective mechanism behind functionalized zinc anodes is analyzed. The study concludes by outlining the characteristics of materials suitable for dendritic-free zinc anode construction and the prospects for future development directions of functionalized zinc anodes in AZIBs.

Keywords

anode / functionalization / inorganic materials / organic materials / zinc-ion batteries

References

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