System and method for electrorefining of silicon
US10072345B2 · kind B2 · utility
1Cited by
12References
11Claims
0Family size
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Key dates
| Filing date | Nov 24, 2014 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Jun 30, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present disclosure provides methods and systems for electrorefining high-purity materials, for example, silicon. An exemplary system includes at least one cathode, an anode, and a reference electrode. At least one controller, for example a potentiostat, is used to control the potential difference between a reference electrode and a cathode or anode. The system can be operated in a single phase or multiple phase operation to produce high-purity materials, such as solar-grade silicon.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.