Electrochemical power generation
First Claim
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1. A power generation system comprising:
- an electrochemical cell including a reactive metal anode, a cathode spaced from said anode, and an electrolyte comprising an aqueous solution of the hydroxide of said reactive metal;
a source of at least one complex comprising a hydrogen fluoride adduct to a fluoride salt which upon contact with said electrolyte precipitates at least one compound of said reactive metal which is insoluble in said electrolyte;
means for contacting said electrolyte with said complex to form at least one compound of said reactive metal which is insoluble in said electrolyte;
means for separating said compound from said electrolyte; and
means for recirculating said separated electrolyte to said electrochemical cell.
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Abstract
A power generation system utilizing an electrochemical cell comprising a reactive metal anode, a cathode spaced from the anode and an electrolyte comprising an aqueous solution of the hydroxide of the reactive metal is disclosed. The hydroxide concentration in the electrolyte is controlled by contacting the electrolyte with at least one complex comprising a hydrogen fluoride adduct to a fluoride salt to form at least one compound of the reactive metal which is insoluble in the electrolyte. The insoluble compound is separated from the electrolyte and the electrolyte is recirculated to the electrochemical cell.
6 Citations
16 Claims
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1. A power generation system comprising:
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an electrochemical cell including a reactive metal anode, a cathode spaced from said anode, and an electrolyte comprising an aqueous solution of the hydroxide of said reactive metal; a source of at least one complex comprising a hydrogen fluoride adduct to a fluoride salt which upon contact with said electrolyte precipitates at least one compound of said reactive metal which is insoluble in said electrolyte; means for contacting said electrolyte with said complex to form at least one compound of said reactive metal which is insoluble in said electrolyte; means for separating said compound from said electrolyte; and means for recirculating said separated electrolyte to said electrochemical cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of power generation, said method comprising the steps of:
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supplying an electrolyte to an electrochemical reaction zone defined between a reactive metal anode and a cathode spaced from said anode in an electrochemical cell, said electrolyte comprising an aqueous solution of the hydroxide of said reactive metal; contacting said electrolyte with at least one complex comprising a hydrogen fluoride adduct to a fluoride salt which, upon contact with said electrolyte, precipitates at least one compound of said reactive metal which is insoluble in said electrolyte; separating said compound from said electrolyte; and recirculating said separated electrolyte to said reaction zone. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification