skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: System and method for electrorefining of silicon

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.

Inventors:
Issue Date:
Research Org.:
Arizona Board of Regents on behalf of Arizona State University, Scottsdale, AZ (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1478997
Patent Number(s):
10072345
Application Number:
14/551,747
Assignee:
Arizona Board of Regents on behalf of Arizona State University (Scottsdale, AZ)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
SC0008862
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Nov 24
Country of Publication:
United States
Language:
English

Citation Formats

Tao, Meng. System and method for electrorefining of silicon. United States: N. p., 2018. Web.
Tao, Meng. System and method for electrorefining of silicon. United States.
Tao, Meng. Tue . "System and method for electrorefining of silicon". United States. https://www.osti.gov/servlets/purl/1478997.
@article{osti_1478997,
title = {System and method for electrorefining of silicon},
author = {Tao, Meng},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {9}
}

Patent:

Save / Share:

Works referenced in this record:

Electrowinning of Silicon from  K2SiF6 ‐ Molten Fluoride Systems
journal, January 1980

  • Rao, Gopalakrishna M.; Elwell, Dennis; Feigelson, Robert S.
  • Journal of The Electrochemical Society, Vol. 127, Issue 9, p. 1940-1944
  • https://doi.org/10.1149/1.2130041