Rechargeable energy storage system including energy storage cells having an internal cooling structure

A vehicle comprising:

• a body;
• an electric motor supported in the body;
• and
• a rechargeable energy storage system comprising:
• a housing including an interior zone;
• a coolant member arranged in the interior zone of the housing;
• and
• a plurality of energy storage cells arranged in the interior zone on the coolant member,
• wherein each of the plurality of energy storage cells comprises:
• a cell can defining an energy storage medium housing, the cell can including a first end supported at the coolant member and a second end;
• an amount of energy storage medium arranged in the energy storage medium housing;
• a heat absorption member extending from the first end toward the second end through the amount of energy storage medium;
• and
• a fin that is a solid structure extending from the coolant member into the heat absorption member along a first direction from a base of the fin positioned at the coolant member to a tip of the fin positioned opposite the base in the first direction,
• wherein the heat absorption member includes an inner surface having a plurality of inner threads,
• wherein the fin includes an outer surface having a plurality of outer threads that engage with the inner threads, the outer threads being in direct contact with the inner surface of the heat absorption member, and
• wherein the outer threads extend continuously from the base of the fin to the tip of the fin.