| 四丁基溴化铵对锌电极的影响 |
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| 引用本文： | 沈美芳,张宝宏,徐东伟.四丁基溴化铵对锌电极的影响[J].电源技术,1997(5). |
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| 作者姓名： | 沈美芳 张宝宏 徐东伟 |
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| 作者单位： | 上海大学贮氢材料研究中心，哈尔滨工程大学化学工程系 |
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| 摘 要： | 为了抑制在充放电循环过程中锌电极产生的枝晶和形变，利用循环伏安法、交流阻抗法研究了在电解液中添加四丁基溴化铵（Ｃ４Ｈ９）４ＮＢｒ（ＴＢＡＢ）表面活性剂的作用。结果表明：加入１０－４ｍｏｌ／ＬＴＢＡＢ后，在锌电极的循环伏安图上阳极氧化电流和阴极还原电流均随着循环次数的增加而减小；此外，在阴极极化时，锌电极阻抗的复数平面图（ＮＹＱＵＩＳＴ）上出现了表征吸附作用的感抗圆。从而说明添加１０－４ｍｏｌ／ＬＴＢＡＢ，由于其表面吸附作用有利于锌电极的充放电性能，尤其是在阴极极化时，作用更为显著。
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| 关 键 词： | 四丁基溴化铵，锌电极，枝晶 |
Effect of TBAB on performance of zinc electrode |
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| Shen Meifang Research Center of Hydrogen storage Materials,Shanghai University,Shanghai Zhang Baohong and Xu Dongwei.Effect of TBAB on performance of zinc electrode[J].Chinese Journal of Power Sources,1997(5). |
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| Authors: | Shen Meifang Research Center of Hydrogen storage Materials Shanghai University Shanghai Zhang Baohong and Xu Dongwei |
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| Affiliation: | Shen Meifang Research Center of Hydrogen storage Materials,Shanghai University,Shanghai 200072 Zhang Baohong and Xu Dongwei Department of Chemical Engineering,Harbin Institute of Engineering,Harbin 150001 |
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| Abstract: | In order to inhibit the dendrite and shape change of zinc electrode during charge and discharge in alkaline eletrolyte,the effect of tetrabutylammonium bromide (C 4H 9) 4NBr (TBAB) in the electrolyte was studied by the method of cyclic voltammetry and AC impedance measurements.The results show that by adding 10 -4 mol/L TBAB to the electrolyte,the anodic and cathodic current on the cyclic voltammetry curve decrease with cycle number increasing,indicating the dendrite suppression;the inductive reactance circle appears on the AC impedance plot under negative polarization,indicating the surface adsorption.It is seen that the performance of zinc electrode can be improved by adding TBAB to the electrolyte,especially during negative polarization. |
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| Keywords: | tetrabutylammonium bromide (TBAB) zinc electrode dendrite |
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