Potassium secondary battery
AssigneeOhio State Innovation Foundation
InventorsYiying Wu, Neng Xiao, William McCulloch
Life of this patent
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Abstract
The present technology is directed to a potassium metal battery, particularly a potassium metal secondary battery, that includes a cathode; an anode that includes potassium metal; and a non-aqueous electrolyte that includes a potassium salt as well as a solvent. The solvent may include dimethoxyethane, digylme, triglyme, tetraglyme, or a mixture of any two or more thereof.
Claims14
A battery comprising
- a cathode;
- an anode comprising potassium metal;
- and
- a first non-aqueous electrolyte comprising bis(trifluoromethanesulfonyl)imide (KTFSI) and a first solvent, wherein the KTFSI is at a concentration in the first non-aqueous electrolyte of about 0.3 M to about 1.0 M;
- wherein
- the potassium metal is provided by electrodeposition of potassium ions in a second non-aqueous electrolyte comprising potassium bis(fluorosulfonyl)imide (KFSI) and a second solvent comprising dimethoxyethane.
An anode for a battery comprising potassium metal that is provided by electrodeposition of potassium ions in a non-aqueous electrolyte comprising potassium bis(fluorosulfonyl)imide (KFSI) and a solvent comprising dimethoxyethane, wherein the KFSI is at a concentration in the non-aqueous electrolyte of about 0.9 M to about 10 M.
Dependencies are inferred from the claim text.