A Semisolid Electrolyte for Flexible Zn-Ion Batteries
A Semisolid Electrolyte for Flexible Zn-Ion Batteries
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DOI：
10.1021/acsaem.9b01415
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发表时间：
2019-09-01
影响因子：
6.4
通讯作者：
Huang, Kevin
中科院分区：
文献类型：
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作者：
Lu, Yanying;Zhu, Tianyu;Huang, Kevin
机械强度高、离子导电且操作安全的电解质对于柔性和可穿戴电子产品至关重要。在此，我们报道了一种吸收 ZnSO4 水溶液的三维双交联明胶和海藻酸钠水凝胶作为柔性锌离子电池的电解质膜。我们表明，设计的聚合物电解质膜在离子电导率、机械灵活性、电化学稳定性以及与锌阳极的兼容性方面表现出优异的性能。由此产生的锌离子电池在容量、倍率性能和循环稳定性方面优于基准液体电池，使其成为可穿戴电子产品柔性电池的有前途的电解质膜候选者。
Mechanically strong, ionically conductive, and operationally safe electrolytes are of paramount importance to flexible and wearable electronics. Herein, we report a three-dimensional, double-cross-linked gelatin and sodium alginate hydrogel imbibed with ZnSO4 aqueous solution as an electrolyte membrane for flexible Zn-ion batteries. We show that the designed polymer electrolyte membrane exhibits superior properties in ionic conductivity, mechanical flexibility, electrochemical stability, and compatibility with the Zn anode. The resultant Zn-ion battery outperforms the baseline liquid counterpart in capacity, rate capability, and cycle stability, making it a promising electrolyte membrane candidate for flexible batteries for wearable electronics.