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首页> 外文期刊>Journal of industrial and engineering chemistry >The effects of mechanical alloying on the self-discharge and corrosion behavior in Zn-air batteries
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The effects of mechanical alloying on the self-discharge and corrosion behavior in Zn-air batteries

机译：机械合金化对Zn-Air电池自放电和腐蚀行为的影响

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The corrosion behavior of Zn anodes is a major issue that must be carefully considered in Zn-air batteries. In this work, mechanically alloyed Zn-Bi specimens with different compositions are fabricated at various milling times in order to enhance the electrochemical performance of the Zn-air batteries. The presence of Bi, which could be detected with bright contrast by backscattered FE-SEM, does not change the crystal structure of Zn. While the pure Zn exhibits 74.40% of a discharge capacity retention, all the Zn-Bi alloy materials deliver more than 90% of a discharge capacity retention. Especially, the anode containing 2 wt% of Bi with a 6 h milled material (B3H6Bi2) exhibits the highest corrosion inhibition efficiency (91.501%) and lowest corrosion current density (0.326 mA cm(-2)). In particular, 99.50% of a discharge capacity retention is achieved with B3H6Bi2. In terms of self-discharge behavior, the mechanical alloyed Zn-Bi materials are suggested as promising anode materials for use in Zn-air batteries. (C) 2017 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译：Zn Anodes的腐蚀行为是在Zn-Air电池中必须仔细考虑的主要问题。在这项工作中，在各种铣削时间下制造具有不同组成的机械合金的Zn-Bi样本，以提高Zn-空气电池的电化学性能。 Bi的存在，可以通过反向散射Fe-SEM用亮对比度来检测，不会改变Zn的晶体结构。虽然纯Zn呈现出放电容量保留的74.40％，但所有Zn-Bi合金材料都提供了超过90％的放电容量保留。特别地，含有2wt％的BI的阳极具有6小时碾磨材料（B3H6Bi2），具有最高的腐蚀抑制效率（91.501％）和最低腐蚀电流密度（0.326 mA cm（-2））。特别是，使用B3H6Bi2实现了99.50％的放电容量保持。就自放电行为而言，建议机械合金化Zn-BI材料作为用于Zn-Air电池的有前途的阳极材料。 （c）2017年韩国工程和工程化学学会。 elsevier b.v出版。保留所有权利。

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