A method of producing a device for accumulating electrical energy, the device defined transversally by a substantially cylindrical lateral face and longitudinally by two opposite end faces separated by a distance (D), the method comprising winding strips at least one of which being an electrical strip conductor whose initial width (L), defined between two lateral borders, is greater than a distance (D) that separates the opposite end faces, this method being characterized in that:
- the winding of the strips is carried out around an electrical conductor element of length such that it is able, at least after the device has been made, to have one end jutting out over each of the end faces of the device,
- at the latest after the winding, teeth are formed on two electrical strip conductors in such a way that each of the two end faces of the device is able to be provided with at least one set of teeth,
- at the level of a first end face of the winding, at least one first set of teeth is connected to a first end of the conducting element which is situated at the level of this end face,
- at the level of the second end face, on the one hand, the second end of the conducing element is connected to a first terminal, and, on the other hand, at least one set of teeth situated at the level of this second face is connected to a second terminal.