Here, we report a flexible solid-state Zn–air battery (SZAB) that achieves a record round-trip efficiency of 75%. The major components of the SZAB are based on biomass derivatives. Glucose acts as the carbon source to construct bifunctional oxygen electrocatalyst. The methylcellulose simultaneously enhances the ionic conductivity and water retention of the gel electrolyte, endowing the SZAB with enhanced flexibility and efficiency.

中文翻译：

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基于绿色原料的灵活可充电锌空气电池，往返效率为75％

在这里，我们报告了一种灵活的固态Zn-空气电池（SZAB），其往返效率达到了创纪录的75％。SZAB的主要成分基于生物质衍生物。葡萄糖充当构建双功能氧电催化剂的碳源。甲基纤维素同时增强了凝胶电解质的离子电导率和保水性，使SZAB具有增强的柔韧性和效率。