ELECTROWINNING OF SILICON WITH LIQUID ELECTRODES

机译：用液体电极电解硅

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A fundamental electrochemical study of Si ions in Na_3AlF_6-LiF melts and electrolysis using liquid cathodes was conducted. Cyclic voltammograms (CVs) clearly showed the depolarization of silicon deposition on liquid cathode by forming chemical complexes with the liquid solvent metals. Besides, co-deposition of Al and Si is possible when Si ions are insufficient in the molten salt. Based on the electrochemical results, silicon diffusion into liquid cathode is modelled and evolution of Si activity with concentration is deduced by a mathematic approach. Electrochemical study using liquid metals as working electrodes, can be used as an alternative approach for the acquisition of basic data on alloy behavior. Galvanostatic electrolysis showed that liquid cathodes are appropriate to collect the deposited solid silicon and the highest collection efficiency is almost 85%.

机译：进行了Na_3AlF_6-LiF熔体中Si离子的基本电化学研究，并使用液体阴极进行了电解。循环伏安图（CV）清楚地显示了通过与液态溶剂金属形成化学配合物而使硅沉积在液态阴极上的去极化作用。此外，当熔融盐中的Si离子不足时，Al和Si的共沉积是可能的。基于电化学结果，对硅扩散到液体阴极中进行了建模，并通过数学方法推断了硅活性随浓度的变化。使用液态金属作为工作电极的电化学研究可以用作获取合金行为基本数据的替代方法。恒电流电解表明，液态阴极适合于收集沉积的固态硅，并且最高的收集效率几乎为85％。

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《EPD congress;TMS annual meeting exhibition》|2014年|353-360|共8页
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Ming Jia; Yun Cheng; Zhongliang Tian; Yanqing Lai; Yexiang Liu;
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Silicon; Molten salt electrolysis; C-V; Depolarization; Liquid Electrode;

机译：硅;熔融盐电解;简历;去极化;液体电极;

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ELECTROWINNING OF SILICON WITH LIQUID ELECTRODES

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