Patent ID: 8081417
Filing Date: 2011-12-20
Classification: H01G

Abstract:
1. An electrolytic capacitor ( 30 ; 40 ; 50 ; 60 ) comprising an airtight casing ( 31 ; 51 ; 61 ), electrodes ( 32 , 32 ′; 52 ; 62 ) immersed in an electrolytic solution, electrical contacts ( 34 , 34 ′; 54 , 54 ′) connected to the electrodes, and means ( 10 ; 20 ; 33 ; 45 ; 55 ; 65 ) for sorption of harmful substances, wherein the means for sorption of harmful substances comprises a polymeric housing ( 21 ) permeable to the harmful substances but impermeable to the electrolytic solution and containing at least one getter material ( 14 ; 22 , 22 ′) for sorption of the harmful substances.