Diatomaceous ionic gel separation layer for energy storage devices and printable composition therefor

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United States of America Patent

PATENT NO 9972450
SERIAL NO

14832054

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Abstract

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Representative embodiments provide a liquid or gel separator utilized to separate and space apart first and second conductors or electrodes of an energy storage device, such as a battery or a capacitor. A representative liquid or gel separator comprises a plurality of particles selected from the group consisting of: diatoms, diatomaceous frustules, diatomaceous fragments, diatomaceous remains, and mixtures thereof; a first, ionic liquid electrolyte; and a polymer or, in the printable composition, a polymer or a polymeric precursor. Another representative embodiment further comprises a second electrolyte different from the first electrolyte; the first and second electrolytes comprise zinc tetrafluoroborate salt in 1-ethyl-3-methylimidalzolium tetrafluoroborate ionic liquid; and the polymer comprises polyvinyl alcohol (“PVA”) or polyvinylidene fluoride (“PVFD”). Additional components, such as additional electrolytes and solvents, may also be included.

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Patent Owner(s)

Patent OwnerAddress
PRINTEGRICA208 4TH ST S STILLWATER MN 55082

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kamins, Theodore I Palo Alto, US 138 2956
Lockett, Vera Nicholaevna Phoenix, US 21 237
Lowenthal, Mark David Gilbert, US 76 1596
Ray, William Johnstone Fountain Hills, US 101 1553
Shotton, Neil O Tempe, US 66 1258

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