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SYSTEM AND METHOD FOR ELECTROREFINING OF SILICON

United States Patent Application

20150075994
A1
View the Complete Application at the US Patent & Trademark Office
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.
Tao, Meng (Scottsdale, AZ)
14/ 551,747
November 24, 2014
FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] This invention was made with government support under grant number DE-SC0008862 awarded by the Department of Energy. The government has certain rights in the invention.