锌
阳极
腐蚀
材料科学
电偶阳极
涂层
电池(电)
图层(电子)
氢氧化钾
氢氧化锌
冶金
化学工程
复合材料
电极
阴极保护
化学
物理
工程类
物理化学
功率(物理)
量子力学
作者
Krittaporn Wongrujipairoj,Laksanaporn Poolnapol,Amornchai Arpornwichanop,Sira Suren,Soorathep Kheawhom
标识
DOI:10.1002/pssb.201600442
摘要
Abstract Self‐discharge caused by hydrogen evolution reaction (HER) coinciding with corrosion of the zinc anode is a major drawback of printed zinc‐air batteries. Thus, this work aims at suppressing self‐discharge of flexible printed zinc‐air batteries by coating thin layer of aluminum oxide ( ) onto the surface of zinc particles. The coating layer was directly synthesized onto the zinc particles by a low‐cost and facile sol–gel method. The coating effectively mitigated HER of the zinc particles, and delayed the corrosion of the zinc anode. Further, the effects of the thickness of layer on corrosion behavior of the zinc anode in 9 M potassium hydroxide as well as performance of the batteries were investigated. With a proper thickness of coating, corrosion of the battery was considerably suppressed without sacrificing the battery performance. (a) Photographic image of the fabricated battery, (b) transmission electron microscopic image of zinc particle coated with .
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