| 第一作者： | Zhao, ZM (Zhao, Zhiming); Wang, JZ (Wang, Jinzhi); Lv, ZL (Lv, Zhaolin); Wang, QL (Wang, Qinglei); Zhang, YJ (Zhang, Yaojian); Lu, GL (Lu, Guoli); Zhao, JW (Zhao, Jingwen); Cui, GL (Cui, Guanglei); |
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| 联系作者： | Zhao, ZM (Zhao, Zhiming); Wang, JZ (Wang, Jinzhi); Lv, ZL (Lv, Zhaolin); Wang, QL (Wang, Qinglei); Zhang, YJ (Zhang, Yaojian); Lu, GL (Lu, Guoli); Zhao, JW (Zhao, Jingwen); Cui, GL (Cui, Guanglei); |
| 发表年度： | 2021 |
| 卷： | 417 |
| 页： | - |
| 摘要： | The revival of rechargeable zinc (Zn)-ion batteries was overshadowed by the deep-seated issues of dendrite growth and intricate side-reactions in routine aqueous electrolytes. Poly (ethylene oxide) (PEO)-based solid-state polymer electrolytes (SPEs) are potentially promising to address these issues, but the valid Zn2+ conduction and proper Zn electrochemistry have been difficult of accomplishment due to the high-degree crystallization of PEO and its interfacial incompatibility with stiff Zn metal. Herein, we bypass these obstacles by the in-situ polymerization of the stark but hand-picked monomer, poly(ethylene glycol) methyl ether acrylate, characterized by the long side-chains with pendant ethylene oxide units, to construct the all-amorphous Zn2+ SPEs for the first time. The long side-chains favor the formation of amorphous matrix while the in-situ process endows compatible electrolyte/electrode interfaces, thus leading to a high ambient ionic conductivity (2.87 x 10(-5) S cm(-1)) as well as low interfacial resistances. The demonstration of this SPE in solid state Zn/Zn symmetrical cells and rechargeable Zn/Mo6S8 cells with long life-spans signifies the highly reversible and dendrite-free Zn electrochemistry. Our results lay groundwork not only for Zn but for other multivalent-metal batteries suffering from poor bulk and interfacial ion transport to construct the rechargeable all-solid-state batteries. |
| 刊物名称： | CHEMICAL ENGINEERING JOURNAL |
| 影响因子： | 8.355 |
| 全文链接： | https://www.sciencedirect.com/science/article/pii/S1385894720342121?via%3Dihub |
