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金属学报（英文版）
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2026年9期
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Stabilizing zinc powder anodes for ＞2000 h cycles through viscoelastic soft solid electrolyte engineering
Stabilizing zinc powder anodes for ＞2000 h cycles through viscoelastic soft solid electrolyte engineering
摘要
Zinc powder is recognized as a practical zinc metal anode.However,the high specific surface area of zinc powder inevitably leads to corrosion in free water-dominated aqueous electrolytes,resulting in limited cycle life—typically below 2000 h in symmetric cells.Therefore,rational electrolyte design is key to enhancing the long-term cycling performance of zinc powder anodes.Herein,we design a viscoelastic soft solid electrolyte(VSSE)and integrate it with zinc powder anodes,achieving substantially improved long-term cycling stability.The VSSE exhibits a high ionic conductivity(2.57 mS cm-1)and a high Zn2+transference number(0.88).Moreover,abundant hydrogen-bond interactions effectively promote the conversion of free water to bound water,thereby suppressing corrosion of the zinc powder anode and dendrite growth.Benefiting from these advantages,zinc powder-based symmetric cells achieve a stable cycling life exceeding 2000 h.Furthermore,full cells incorporating various cathodes not only deliver high specific capacity but also exhibit good cycling sta-bility,demonstrating broad applicability.These results demonstrate that designing viscoelastic solid electrolytes effectively enhances the long-term cycling performance of zinc powder anodes,providing a promising pathway toward high-performance zinc-ion batteries.
年，卷(期)：
2026, 47(9)
机标分类号：
S
H3.1
TP311
在线出版日期：
2026年10月26日
