Invention Grant
- Patent Title: Solid state ultracapacitor
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Application No.: US15010884Application Date: 2016-01-29
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Publication No.: US09881747B2Publication Date: 2018-01-30
- Inventor: Terry D. Rolin , Curtis W. Hill
- Applicant: The United States of America as Represented by the Administrator of the National Aeronautics and Space Administration
- Applicant Address: US DC Washington
- Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Current Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Current Assignee Address: US DC Washington
- Agent James J. McGroary; Mark P. Dvorscak
- Main IPC: H01G11/84
- IPC: H01G11/84 ; C04B35/468 ; H01G4/12 ; C04B35/628 ; C04B35/626 ; C04B35/63 ; C04B35/638 ; H01G11/56 ; C04B35/64 ; C04B35/622

Abstract:
An ink of the formula: 60-80% by weight BaTiO3 particles coated with SiO2; 5-50% by weight high dielectric constant glass; 0.1-5% by weight surfactant; 5-25% by weight solvent; and 5-25% weight organic vehicle. Also a method of manufacturing a capacitor comprising the steps of: heating particles of BaTiO3 for a special heating cycle, under a mixture of 70-96% by volume N2 and 4-30% by volume H2 gas; depositing a film of SiO2 over the particles; mechanically separating the particles; incorporating them into the above described ink formulation; depositing the ink on a substrate; and heating at 850-900° C. for less than 5 minutes and allowing the ink and substrate to cool to ambient in N2 atmosphere. Also a dielectric made by: heating particles of BaTiO3 for a special heating cycle, under a mixture of 70-96% by volume N2 and 4-30% by volume H2 gas; depositing a film of SiO2 over the particles; mechanically separating the particles; forming them into a layer; and heating at 850-900° C. for less than 5 minutes and allowing the layer to cool to ambient in N2 atmosphere.
Public/Granted literature
- US20170221648A1 Solid State Ultracapacitor Public/Granted day:2017-08-03
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