Electrolyte compositions with organic additives to reduce...

Details Electrolyte compositions with organic additives to reduce... Electrolyte compositions with organic additives to reduce...

H - Electricity

01

M

319/65

H01M 6/16 (2006.01) H01M 6/26 (2006.01)

Patent

CA 1051973

ABSTRACT OF THE DISCLOSURE In a reactive metal-water electrochemical cell, an alkaline elec- trolyte containing organic additives which reduce the parasitic direct cor- rosion reaction between the reactive metal and the water of the electrolyte. More particularly, the additives substantially reduce the activity of the water by forming inter-molecular hydrogen bonding between the organic additive and water. Illustratively, such organic additives include alcohols, nitrogen containing compounds such as amides, amines and hydrazine, and ketones, ethers and esters. Optionally, molarity of the electrolyte is controlled independent of water additions by chemically removing the reactive metal ions formed during discharge of the cell. This is accomplished by the controlled additions of precipitating agents to the electrolyte to form insoluble salts.

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