One aspect relates to a system for stacking electrodes. In various embodiments, the system comprises a working surface, a device to stack foil electrodes on the working surface during an assembly process to form an electrode stack, and a magnetic source to apply a magnetic field proximate to the working surface. The magnetic field influences at least some of the electrodes and holds the electrode stack to the working surface during the assembly process. A second aspect relates to a process for stacking electrodes. In various embodiments, the process comprises forming an electrode stack proximate to a working surface during an assembly process. The electrode stack includes two or more foil electrodes, at least one of which is magnetic. The process provides a magnetic field to influence the at least one magnetic electrode and holds the one or more electrodes to the working surface. Other aspects are provided herein.