Process for producing silicon

Patent · Sun Jan 01 00:00:00 EST 1984

OSTI ID:865004

Olson, Jerry M ^[1]; Carleton, Karen L ^[2]

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1. Lakewood, CO
2. Boulder, CO

A process for producing silicon includes forming an alloy of copper and silicon and positioning the alloy in a dried, molten salt electrolyte to form a solid anode structure therein. An electrically conductive cathode is placed in the electrolyte for plating silicon thereon. The electrolyte is then purified to remove dissolved oxides. Finally, an electrical potential is applied between the anode and cathode in an amount sufficient to form substantially pure silicon on the cathode in the form of substantially dense, coherent deposits.

• Research Organization: National Renewable Energy Laboratory (NREL), Golden, CO (United States)
• DOE Contract Number: EG-77-C-01-4042
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4448651
• OSTI ID: 865004
• Country of Publication: United States
• Language: English

Related Subjects

process
producing
silicon
forming
alloy
copper
positioning
dried
molten
salt
electrolyte
form
solid
anode
structure
therein
electrically
conductive
cathode
placed
plating
thereon
purified
remove
dissolved
oxides
finally
electrical
potential
applied
amount
sufficient
substantially
pure
dense
coherent
deposits
electrical potential
substantially pure
electrically conductive
molten salt
salt electrolyte
amount sufficient
producing silicon
pure silicon
form substantially
anode structure
/205/136/204/