阳极
锌
材料科学
电偶阳极
化学工程
水溶液
阴极
涂层
电化学
聚乳酸
枝晶(数学)
电镀(地质)
碳纤维
纳米技术
聚合物
冶金
化学
复合材料
阴极保护
电极
有机化学
几何学
数学
物理化学
复合数
工程类
地球物理学
地质学
作者
Maryam Abouali,Sadaf Adhami,Somayeh Asadi Haris,Recep Yüksel
标识
DOI:10.1002/anie.202405048
摘要
A major bottleneck limiting the commercialization of aqueous zinc ion batteries (AZIBs) is dendrite formation on the zinc anode during the plating/stripping process, which leads to rapid performance and device failure. In this regard, researchers are trying to design more stable anodes toward suppressing dendrite formation. One possible solution to tackle this problem and to extend the cycling life of AZIBs is to modify the zinc anode surface by coating carbonaceous materials, enabling controlled charge flux and uniform ion distribution. This work reports a sustainable and bio‐derived polylactic acid (PLA) as a coating layer on the zinc anode. Carbonizing this polymer under ambient conditions using a high‐power nanosecond laser forms a carbon‐coated zinc foil, which was directly utilized as the anode in aqueous zinc ion batteries. The fabricated laser‐processed PLA‐derived carbon‐coated zinc anode demonstrated an extended cycling life of almost 1600 hours, significantly outperforming the bare zinc anode. A full aqueous zinc ion battery assembled from as‐modified anode and as‐prepared V2O5 nanofibers as cathode was able to deliver a specific capacity of 238 mAh g‐1 at 1.0 A g‐1 with a capacity retention of 70 % after 1000 cycles.
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