Intermsofproduction,aluminumelectrolyticcapacitorsoccupythesecondplaceinthecapacitors.ThiskindofcapacitorwasoriginallyakindofDCcapacitor,butnowithasdevelopedfromDCtoAC,fromlowtemperaturetohightemperature,fromlowvoltagetohighvoltage,fromgeneraltypetospecialtype,fromgeneralstructuretochiptypeandflat.BookstructureTheupperlimitcapacityhasbeenextendedtoabout4f,theoperatingfrequencyhasreached30kHz,theworkingtemperaturerangehasreached-55℃-125℃,someh***ereached150℃,andtheratedvoltagehasreached700v.Inshort,aluminumelectrolyticcapacitorsaredevelopingmoreandmorewidely.Thebasisforthesedevelopmentsisasfollows:electrolyticcapacitorsonmaterials)