Exergy’s batteries employ simple scalable production processes to offer batteries against low costs. Each Exergy battery is build of multiple cells. Every cell consists of a cathode compartment (positive pole) and an anode compartment (negative pole). When the cell is charging, ions flow from the anode to the cathode (storing energy). While if the cell discharges the ions flow from the cathode to the anode (and electrons release the stored energy).

Both poles within the cell are separated by a ceramic membrane that eliminates the chance for dendrite formation, which is for example an important cause for cell failures of Li-ion batteries (used in many mobile devices). Another important characteristic is that the catholyte used in Exergy cells is non-flammable and intrinsically safe.