APPARATUS FOR A PRISMATIC BATTERY CELL WITH BUILT-IN SPRINGS

An apparatus for prismatic battery cell is provided. The apparatus includes a hard outer case defining an internal volume. The apparatus further includes an electrode stack disposed within the internal volume and includes a pair of an anode electrode and a cathode electrode. The electrode stack further includes a plurality of electrode pair layers stacked parallel to each other. The electrode pair layers each include a planar surface. The apparatus further includes a built-in spring configured for pressing against the electrode stack in a direction perpendicular to the planar surface of each of the electrode pair layers.