Printed energy storage device
AssigneeNthdegree Technologies Worldwide Inc.
InventorsVera N. Lockett, Leila Daneshi, William J. Ray, John G. Gustafson
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Abstract
An energy storage device includes a printed current collector layer, where the printed current collector layer includes nickel flakes and a current collector conductive carbon additive. The energy storage device includes a printed electrode layer printed over the current collector layer, where the printed electrode layer includes an ionic liquid and an electrode conductive carbon additive. The ionic liquid can include 1-ethyl-3-methylimidazolium tetrafluoroborate (C2mimBF4). The current collector conductive carbon can include graphene and the electrode conductive carbon additive can include graphite, graphene, and/or carbon nanotubes.
Claims22
An energy storage device, comprising:
- a printed collector layer, wherein the printed current collector layer comprises nickel flakes and a current collector conductive carbon additive;
- and
- a printed electrode layer printed over the current collector layer, wherein the printed electrode layer comprises an ionic liquid and an electrode conductive carbon additive,
- wherein the ionic liquid includes a cation selected from the group consisting of 1-ethyl-3-methylimidazolium, butyltrimethylammonium, 1-butyl-3-methylimidazolium, 1-methyl-3-propylimidazolium, 1-hexyl-3-methylimidazolium, choline, ethylammonium, tributylmethylphosphonium, tributyl(tetradecyl)phosphonium, trihexyl(tetradecyl)phosphonium, 1-ethyl-2,3-methylimidazolium, 1-butyl-1-methylpiperidinium, diethylmethylsulfonium, 1-methyl-1-propylpiperidinium, 1-butyl-2-methylpyridinium, 1-butyl-4-methylpyridinium, and 1-butyl-1-methylpyrrolidinium, and
- wherein the ionic liquid includes an anion selected from the group consisting of tetrafluoroborate, tris(pentafluoroethyl)trifluorophosphate, trifluoromethanesulfonate, hexafluorophosphate, ethyl sulfate, dimethyl phosphate, methansulfonate, triflate, tricyanomethanide, dibutylphosphate, bis(trifluoromethylsulfonyl)imide, bis-2,4,4-(trimethylpentyl)phosphinate, iodide, chloride, bromide, and nitrate.
A method of fabricating an energy storage device, comprising:
- printing a current collector layer over a substrate, wherein the current collector layer comprises nickel flakes and a current collector conductive carbon additive;
- and
- printing an electrode layer over the current collector layer, wherein the electrode layer comprises an ionic liquid and an electrode conductive carbon additive,
- wherein the ionic liquid includes a cation selected from the group consisting of 1-ethyl-3-methylimidazolium, butyltrimethylammonium, 1-butyl-3-methylimidazolium, 1-methyl-3-propylimidazolium, 1-hexyl-3-methylimidazolium, choline, ethylammonium, tributylmethylphosphonium, tributyl(tetradecyl)phosphonium, trihexyl(tetradecyl)phosphonium, 1-ethyl-2,3-methylimidazolium, 1-butyl-1-methylpiperidinium, diethylmethylsulfonium, 1-methyl-1-propylpiperidinium, 1-butyl-2-methylpyridinium, 1-butyl-4-methylpyridinium, and 1-butyl-1-methylpyrrolidinium, and
- wherein the ionic liquid includes an anion selected from the group consisting of tetrafluoroborate, tris(pentafluoroethyl)trifluorophosphate, trifluoromethanesulfonate, hexafluorophosphate, ethyl sulfate, dimethyl phosphate, methansulfonate, triflate, tricyanomethanide, dibutylphosphate, bis(trifluoromethylsulfonyl)imide, bis-2,4,4-(trimethylpentyl)phosphinate, iodide, chloride, bromide, and nitrate.
Dependencies are inferred from the claim text.