Many optimization strategies have been employed to stabilize zinc anodes of zinc-ion batteries(ZIBs).Although these commonly used strategies can improve anode performance,they simultaneously induce specific issues.In this study,through the combination of structural design,interface modification,and electrolyte optimization,an'all-in-one'(AIO)electrode was developed.Compared to the three-dimensional(3D)anode in routine liquid electrolytes,the new AIO electrode can greatly suppress gas evolution and the occurrence of side reactions induced by active water molecules,while retaining the merits of a 3D anode.Moreover,the integrated AIO strategy achieves a sufficient electrode/electrolyte interface contact area,so that the electrode can promote electron/ion transfer,and ensure a fast and complete redox reaction.As a result,it achieves excellent shelving-restoring ability(60 hours,four times)and 1200 cycles of long-term stability without apparent polarization.When paired with two common cathode materials used in ZIBs(α-MnO2 and NH4V4O10),full batteries with the AIO electrode demonstrate high capacity and good stability.The strategy of the'all-in-one'architectural design is enlightened to solve the issues of zinc anodes in advanced Zn-based batteries.

Canpeng Li;Xuesong Xie;Hui Liu;Pinji Wang;Canbin Deng;Bingan Lu;Jiang Zhou;Shuquan Liang

School of Materials Science and Engineering,Key Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan Province,Central South University,Changsha 410083,China;School of Physics and Electronics,Hunan University,Changsha 410082,China

国家科学评论（英文版）

[1]Canpeng Li;Xuesong Xie;Hui Liu;Pinji Wang;Canbin Deng;Bingan Lu;Jiang Zhou;Shuquan Liang-.Integrated'all-in-one'strategy to stabilize zinc anodes for high-performance zinc-ion batteries)[J].国家科学评论（英文版）,2022(03):59-67

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