Method for rapid and uniform heating of a multilayer assembly comprising at least one thin layer based on an ion-conducting macromolecular material interleaved between two structures with high electronic conduction

A method for rapidly and uniformly heating a multilayer assembly comprising at least one thin layer of an ion-conducting macromolecular material, intercalated between two structures having high electronic conduction so as to be in intimate contact with the said structures, which comprises:

• applying an electrical voltage between the structures with high electronic conduction which are situated on either side of each layer of ion-conducting macromolecular material, at least a part of the voltage comprising an alternating component which has a frequency of less than 5 kHz and an amplitude of between 0.05 and 100 volts, so as to generate in the multilayer assembly an alternating ion current capable of effecting heating of the ion-conducting macromolecular material by the Joule effect.