| 含溴组份在阳离子交换膜中的扩散 |
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| 引用本文： | 王森,孙彦平,许文林.含溴组份在阳离子交换膜中的扩散[J].太原理工大学学报,1993(2). |
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| 作者姓名： | 王森 孙彦平 许文林 |
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| 作者单位： | 太原工业大学化学工程系
(王森，孙彦平)，太原工业大学化学工程系(许文林) |
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| 摘 要： | 本文就含溴组份在锌—溴电池所用全氟膜内的扩散进行了分析、研究。数学模型及平衡计算表明。B_r~-3为主要的扩散组份。通过测溴浓差电池的电势衰减速率,确定得扩散系数为10~(-8)cm~2/s级。本文指出了降低电池自放电速率应采取的措施,对锌—溴电池的设计和操作都具实际意义。
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| 关 键 词： | 全氟膜 扩散系数 锌—溴电池 自放电 溴浓差电池 |
The Diffusion of Bromine-bearing Species through Ion-exchage Membranes |
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| Wang Sen Sun Yanping Xu Wenlin.The Diffusion of Bromine-bearing Species through Ion-exchage Membranes[J].Journal of Taiyuan University of Technology,1993(2). |
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| Authors: | Wang Sen Sun Yanping Xu Wenlin |
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| Institution: | Department of Chemical Engineering |
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| Abstract: | The diffusion of bromine-bearing species through ion-exchage membranes used in Zn-Br cell has been analysed and studied in this paper. Mathematical models and equilibrium calculation show that Br3- is the main species of diffusion through the membrane. By measuring the decay of the potential in a bromine concentration cell, the range of diffusivity is determined about 10-8cm2/sec.The methods to reduce self-discharge in a cell have been also pointed out and they are practically useful for the design and operation of Zn-Br cell. |
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| Keywords: | perfluorinated ion-excharge membrane diffusiyity zinc-bromine cell self-discharge bromine concentration cell |
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