Effects of Electrolytic Parameters on the Deposition of Boron at the Cathode During Molten Salt Electrolysis of Silicon

被引：0

作者：

Wang, Tao ^{[1
]}

Tian, Zhongliang ^{[1
]}

Yang, Shu ^{[1
]}

Lai, Yanqing ^{[1
]}

机构：

[1] Cent South Univ, Sch Met & Environm, 932 Lushan South Rd, Changsha 410083, Hunan, Peoples R China

来源：

11TH INTERNATIONAL SYMPOSIUM ON HIGH-TEMPERATURE METALLURGICAL PROCESSING | 2020年

关键词：

Na(3)alf(6)-SiO2 melt; Boron deposition; Electrolytic parameters; Molten salt electrolysis for silicon; METALLURGICAL GRADE SILICON; IMPURITIES; SEPARATION; REMOVAL;

D O I：

10.1007/978-3-030-36540-0_9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The element boron has an important influence on the conversion efficiency of solar cells of silicon. In this study, the effects of the electrolytic parameters (electrolysis temperature, current density, and concentration of Si in melt) on the deposition of B at the cathode were studied during the molten salt electrolysis for silicon in Na3AlF6-SiO2 melt. ICP analysis shows that the deposition content of B at the cathode is decreased with the increase in electrolysis temperature, but is increased with the increase in current density. Moreover, increasing the concentration of Si in melt is unfavorable for B to deposit at the cathode. Accordingly, by adjusting the electrolytic parameters, the deposition of B can be controlled.

引用

页码：93 / 100

页数：8

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