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US 10,121,607 B2Granted
Ceramic separator for ultracapacitors
AssigneeCorning Incorporated
InventorsFelipe Miguel Joos, Satyanarayana Kodali, Atul Kumar, Charles Warren Lander, Kamjula Pattabhirami Reddy, Huthavahana Kuchibhotla Sarma
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Abstract
A separator such as for an electrochemical double layer capacitor includes acicular inorganic particles that are dried to form a porous membrane. Example inorganic particles are calcium silicate particles. A deposition method implementing slurry that includes the acicular inorganic particles and a dispersing medium along with a binder material can be used to form the separator layer directly on electrode materials.
Claims14
A device comprising:
- an integrated separator comprising an electrode layer and a separator layer disposed adjacent to a first surface of the electrode layer, wherein the separator layer comprises a binder and acicular ceramic particles, and the separator layer is at least partially coated with a metal-ligand complex;
- and
- a current collector disposed adjacent to a second surface of the electrode layer,
- wherein the metal-ligand complex comprises (a) a metal selected from the group consisting of copper, zinc, nickel, cobalt, iron, chromium, titanium, manganese, vanadium, magnesium, aluminum, platinum, palladium, rhodium, and ruthenium and (b) a ligand selected from the group consisting of acetate, trifluoroacetate, benzoate, triflate, ammonia, and pyridine, and
- the metal-ligand complex is an electron sink that traps anions during operation of the device by displacing a ligand on the metal-ligand complex.
2 more elements
A device comprising:
- an integrated separator comprising a separator layer and an electrode layer, wherein the integrated separator comprises opposing surfaces disposed adjacent to first and second current collectors;
- and
- an electrolyte,
- wherein the separator layer comprises a binder and acicular ceramic particles,
- the separator layer is at least partially coated with a metal-ligand complex comprising (a) a metal selected from the group consisting of copper, zinc, nickel, cobalt, iron, chromium, titanium, manganese, vanadium, magnesium, aluminum, platinum, palladium, rhodium, and ruthenium and (b) a ligand selected from the group consisting of acetate, trifluoroacetate, benzoate, triflate, ammonia, and pyridine, and
- during operation of the device the metal-ligand complex acts as an electron sink for trapping anions in the electrolyte by displacing a ligand on the metal-ligand complex.
3 more elements
Dependencies are inferred from the claim text.