Invention Application
- Patent Title: Process for Forming an Electrolytic Capacitor Having a Higher Cap Recovery and Lower ESR
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Application No.: US17357441Application Date: 2021-06-24
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Publication No.: US20220148816A1Publication Date: 2022-05-12
- Inventor: Yaru Shi , Antony P. Chacko , Ajaykumar Bunha , Qingping Chen , Elisabeth Crittendon Key
- Applicant: KEMET Electronics Corporation
- Applicant Address: US FL Fort Lauderdale
- Assignee: KEMET Electronics Corporation
- Current Assignee: KEMET Electronics Corporation
- Current Assignee Address: US FL Fort Lauderdale
- Main IPC: H01G9/15
- IPC: H01G9/15 ; H01G9/028 ; H01G9/00 ; H01G9/042 ; H01G9/08 ; H01G11/48 ; H01G9/052

Abstract:
Provided is an improved capacitor formed by a process comprising: providing an anode comprising a dielectric thereon wherein the anode comprises a sintered powder wherein the powder has a powder charge of at least 45,000 μFV/g; and forming a first conductive polymer layer encasing at least a portion of the dielectric by applying a first slurry wherein the first slurry comprises a polyanion and a conductive polymer and wherein the polyanion and conductive polymer are in a weight ratio of greater than 3 wherein the conductive polymer and polyanion forms conductive particles with an average particle size of no more than 20 nm.
Public/Granted literature
- US11676770B2 Electrolytic capacitor having a higher cap recovery and lower ESR Public/Granted day:2023-06-13
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