2025/2026 Hybrid Powerunit speculation

[saviour stivala]

Are there some changes for the batteries to expect? I know that there is a list for allowed materials and every design has to be approved by the FIA. But it is possible to go to a supercapcitor or some sort of "different" energy store?

Highly unliely that supercapacitors will replace the ES (battery) in F1.

[Ferry]

Highly unliely that supercapacitors will replace the ES (battery) in F1.

Supercapacitor is just a fancy name for a electric double layer capacitor, EDLC. Also known as ultracapacitor. They fall somewhere between capacitors and battery in capacity and charge/recharge times.
Roughly categorized, batteries operate in minutes to hours time domain, EDLC seconds to minutes, capacitor < 1 second.
I think what people mean by supercapacitor is a non excisting thing with super properties. What we would like to have, not the excisting supercapacitors of today.