OSCON or OS-CON capacitors
wikipedia,,
OSCON or OS-CON capacitors are a polymerized organic semiconductor solid-electrolyte device. An alternative chemistry is offered in a conductive polymer, but with the same trade name.
Characteristics
* This type offers longer life at higher cost than standard (liquid) electrolytics. 50Khours life at 85C.
* ESR is stable under varying temperature, unlike standard electrolytics.
* ESR lower than electrolytic, allowing use of smaller values for bypass.
* WV to around 35V.
Construction
* Cathode is Al foil.
* A Separator sheet is impregnated with electrolyte.
* Anode is Al foil with an oxide layer.
Sandwich is rolled and assembled into a leaded can.

