十二烷基三甲基氯化铵对铝-空气电池Al-0.8Bi阳极性能的影响  

Effect of Dodecyl Trimethyl Ammonium Chloride on the Performance of Al-0.8Bi Anode for Aluminum-Air Battery

作　　者：俞小花[1] 李影 谭皓天 沈庆峰[1] 王发强 谢刚[1] YU Xiaohua;LI Ying;TAN Haotian;SHEN Qingfeng;WANG Faqiang;XIE Gang(Faculty of Metallurgical and Energy Engineering,Kunming University of Science and Technology,Kunming 650093,China)

机构地区：[1]昆明理工大学冶金与能源工程学院,昆明650093

出　　处：《材料导报》2024年第23期1-6,共6页Materials Reports

基　　金：国家自然科学基金面上项目(51774160);云南省万人计划(YNWR-QNBJ-2018-327)。

摘　　要：碱性水溶液铝-空气电池阳极反应最大的缺点是寄生析氢反应,因此,寻找一种能有效抑制铝阳极自腐蚀的电解质添加剂是至关重要的。本工作探究了不同浓度的十二烷基三甲基氯化铵(阳离子表面活性剂1231)季铵盐型缓蚀剂在4 mol·L^(-1)NaOH溶液中对Al-0.8Bi合金阳极板电化学性能和综合放电性能的影响。研究结果表明,在低电流密度下,阳离子表面活性剂1231的添加能有效抑制阳极的析氢腐蚀,使腐蚀坑更为均匀,能有效提高铝-空气电池的能量密度并维持相对稳定的放电性能。The biggest disadvantage of alkaline aqueous aluminum-air battery is parasitic hydrogen evolution reaction.Therefore,it is crucial to find an effective electrolyte additive to inhibit the self-corrosion of aluminum anode.In this work,the effects of different concentrations of dodecyl trimethyl ammonium chloride(cationic surfactant 1231)quaternary ammonium salt as acorrosion inhibitor in 4 mol·L^(-1)NaOH solution on the electrochemical performance and comprehensive discharge performance of Al-0.8Bi alloy anode were investigated.The results showed that the addition of cationic surfactant 1231 can effectively inhibit the hydrogen evolution corrosion of the electrode to make the corrosion pit more uniform at low current density,and effectively improve its energy density,maintaining relatively stable discharge performance.

关 键 词：铝-空气电池 缓蚀剂 十二烷基三甲基氯化铵 电化学性能 

分 类 号：TG174.4[金属学及工艺—金属表面处理] TM911.41[金属学及工艺—金属学]