Long cycle life prismatic battery cell for high power applications

An electrolytic cell module comprising:

• a housing adapted to retain electrolytic fluid;
• a first heat-conducting fin disposed within the housing having a first fin first surface and an opposing first fin second surface, the first fin first surface and the first fin second surface defining a respective first housing cavity and a second housing cavity within the housing;
• first and second active prismatic cell assemblies, wherein each of the first and second active prismatic cell assemblies comprises a plurality of stacked electrodes interleaved with a separator, wherein an end portion of each of the separators encloses a respective one of the cell assemblies without external packaging;
• and
• electrolytic fluid disposed within the first and second cavities of the housing;
• wherein the first active prismatic cell assembly is disposed within the first housing cavity and directly engages the first fin first surface;
• wherein the second active prismatic cell assembly is disposed within the second housing cavity and directly engages the first fin second surface;
• wherein the electrolytic fluid disposed within the first and second cavities engages the first and second prismatic cell assemblies and the first heat conducting fin;
• and
• wherein the first heat-conducting fin engaging the first and second active prismatic cell assemblies is adapted to conduct heat away from the first and second active prismatic cell assemblies outwardly from the housing.