“Forming” would be a more appropriate description, as voltage is applied to develop the Helmholtz layers and form the double layers of the capacitor.
This process also involves all the cells being measured, and thus tested at a rate of 100%. The capacitors are marked with lot numbers.
Each ultracap is marked with a lot number which contains the following information in encoded form:
The lot numbers consist of an encrypted date code and the production batch to provide the traceability required by TS16949.