As Figure implies, potentials of the WE and CE are only slightly shifted (in comparison to Figure when Cmeso was used as GE) to the region where a main attraction of anions (blue region) can be expected. Even when applying a -1 V Ubias (third row in Figure ), the CE still operates in the range of potentials corresponding to the attraction of cations (red region) under the "open" polarization of the W-Cap and no significant changes in the ion balancing situation can be expected. The CE still acts as an electrode that balances the charge of the WE since GE has only a small contribution to the charge balance of WE because of its very low surface area (low capacitance ability). These results demonstrate the importance of GE balancing and its essential contribution to the capacitive storage mechanism.