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US 11,600,450 B2Granted
Hybrid capacitor with improved ESR stabilization
AssigneeKemet Electronics Corporation
InventorsVictor Andoralov, Vania Pais, Débora Sá, Miguel Evaristo, Rui A. Monteiro
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Abstract
Provided is a capacitor, and more preferably a hybrid capacitor, and a method of making the capacitor. The capacitor comprises an anode, with a dielectric on the anode, and a cathode with a barrier layer on the cathode. A separator, conductive polymer, liquid electrolyte and stabilizer are between the anode and cathode.
Claims63
A capacitor comprising:
- an anode with a dielectric on said anode;
- a cathode with a barrier layer on said cathode;
- a separator between said anode and said cathode;
- a conductive polymer between said anode and said cathode;
- a liquid electrolyte between said anode and said cathode;
- and
- a stabilizer between said anode and said cathode wherein said stabilizer is an organic peroxide comprising alkyl groups having 1-20 carbons or aromatic groups.
4 more elements
A capacitor comprising:
- an anode with a dielectric on said anode;
- a cathode with a barrier layer on said cathode;
- a separator between said anode and said cathode;
- a conductive polymer between said anode and said cathode;
- a liquid electrolyte between said anode and said cathode;
- and
- a stabilizer between said anode and said cathode wherein said stabilizer is a chelate complex of transition metals on a polymeric backbone comprising a metal cation, a number of blocks and ligands adjusted to achieve a reduction/oxidation potential which is higher than the electrochemical potential of the polymer.
4 more elements
A capacitor comprising:
- an anode with a dielectric on said anode;
- a cathode with a barrier layer on said cathode;
- a separator between said anode and said cathode;
- a conductive polymer between said anode and said cathode;
- a liquid electrolyte between said anode and said cathode;
- and
- a stabilizer between said anode and said cathode wherein said stabilizer is organic nitro compounds wherein said organic nitro compounds are R5—R6—NO2, wherein:
- R5 is selected from alkyl of up to 20 carbons, alcohol, carboxyl and hydroxyl group;
- R6 is an aromatic C6 ring or a substituted aromatic C6 ring.
6 more elements
A method for forming a hybrid capacitor comprising:
- forming an anode with a dielectric on said anode;
- forming a cathode with a barrier layer on said cathode;
- forming a separator;
- forming a working element comprising a layered structure with a conductive polymer, a liquid electrolyte, a stabilizer and said separator between said anode and said cathode wherein said stabilizer is an organic peroxide comprising alkyl groups having 1-20 carbons or aromatic groups.
1 more element
A method for forming a hybrid capacitor comprising:
- forming an anode with a dielectric on said anode;
- forming a cathode with a barrier layer on said cathode;
- forming a separator;
- forming a working element comprising a layered structure with a conductive polymer, a liquid electrolyte, a stabilizer and said separator between said anode and said cathode wherein said stabilizer comprises chelate complexes of transition metals on a polymeric backbone comprising a metal cation, a number of blocks and ligands adjusted to achieve a reduction/oxidation potential which is higher than the electrochemical potential of the polymer.
1 more element
A method for forming a hybrid capacitor comprising:
- forming an anode with a dielectric on said anode;
- forming a cathode with a barrier layer on said cathode;
- forming a separator;
- forming a working element comprising a layered structure with a conductive polymer, a liquid electrolyte, a stabilizer and said separator between said anode and said cathode wherein said stabilizer comprises organic nitro compounds wherein said organic nitro compounds are R5—R6—NO2, wherein:
- R5 is selected from alkyl of up to 20 carbons, alcohol, carboxyl and hydroxyl group;
- R6 is an aromatic C6 ring or a substituted aromatic C6 ring.
3 more elements
A capacitor comprising:
- an anode with a dielectric on said anode;
- a cathode with a barrier layer on said cathode;
- a separator between said anode and said cathode;
- a conductive polymer between said anode and said cathode;
- a liquid electrolyte between said anode and said cathode;
- and
- a stabilizer between said anode and said cathode wherein said stabilizer is a gas stabilizer.
4 more elements
A method for forming a hybrid capacitor comprising:
- forming an anode with a dielectric on said anode;
- forming a cathode with a barrier layer on said cathode;
- forming a separator;
- forming a working element comprising a layered structure with a conductive polymer, a liquid electrolyte, a stabilizer and said separator between said anode and said cathode wherein said stabilizer is a gas stabilizer.
1 more element
Dependencies are inferred from the claim text.