Cell temperature regulation

An energy storage assembly, comprising:

• a vertical stack of modules, each module comprising:
• a plurality of energy storage components;
• a thermally conductive shell comprising the plurality of energy storage components;
• and
• a divider, wherein the divider partitions the module into a first sub-module and a second sub-module, and wherein the divider is in contact with the thermally conductive shell;
• and
• wherein a pouch of thermally absorptive material is placed between a first module and a second module that are adjacent to each other in the vertical stack of modules.