Authors
Jingjie Sun, Tianyu Shen, Mingyue Zhang, Yizhi Xing, Jie Wei, Qianchuan Yu, Zuoxiu Tie, Zhong Jin
Published in
Science advances. Volume 12. Issue 32. Pages eaeh4699. Aug 07, 2026. Epub Aug 05, 2026.
Abstract
Developing dendrite-free zinc metal anodes with high durability poses a great challenge for aqueous zinc-ion batteries. Herein, we propose an in situ constructed 3D restrained host frameworks with multi-component gradients that induces a controllable and rapid stack-type zinc plating/stripping behavior, enabling a unique "first-in/last-out" mode. Typically, hydrophobic amino-functionalized polysilane passivation layer and zincophilic Ag nanoparticles are successively self-assembled on carbon paper scaffold to form opposite concentration gradients, namely g'-Ag/g-PSiOx-NH2/CP. The g-PSiOx-NH2 inhibits side-reactions and promotes Zn2+ desolvation, meanwhile the g'-Ag guides preferential Zn2+ deposition. Consequently, the zinc-deposited g'-Ag/g-PSiOx-NH2/CP electrodes exhibit high Coulombic efficiency and long cyclability, surpassing 5000 hours at 10 mA cm-2/10 mAh cm-2 in symmetric cells. The as-assembled Zn||MnO2 full batteries deliver a specific capacity of 200.1 mAh g-1 with 82.2% retention after 800 cycles. Large-size pouch-type battery with zinc-deposited g'-Ag/g-PSiOx-NH2/CP anode and high-loading MnO2 cathode (∼15 mg cm-2) also exhibit good rate capability and cyclability. This scalable strategy offers a feasible solution to develop high-durability rechargeable metal-based batteries.
PMID:
42555729
Bibliographic data and abstract were imported from PubMed on 06 Aug 2026.
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