Dehumidification system for battery pack with desiccant reconditioning

A method of managing dehumidification in a battery pack having a plurality of battery modules and a control unit with a processor and tangible, non-transitory memory on which instructions are recorded, the method comprising:

• housing the plurality of battery modules in a casing with at least one cavity;
• positioning a dehumidification unit within the at least one cavity, the dehumidification unit including a desiccant;
• positioning a heating element in proximity to the desiccant and selectively heating the desiccant via the heating element, the heating element being adjustable via the control unit;
• and
• collecting moisture from the plurality of battery modules in the desiccant during a collection phase of dehumidification and drying out the desiccant during a reconditioning phase of the dehumidification, via the heating element.

A system for managing dehumidification in a battery pack having a plurality of battery modules, the system comprising:

• a casing adapted to house the plurality of battery modules, the casing having at least one cavity;
• a dehumidification unit at least partially positioned within the at least one cavity, the dehumidification unit including a desiccant;
• a heating element adapted to selectively heat the desiccant;
• an internal hygrometer adapted to obtain data pertaining to humidity level inside the casing;
• a control unit having a processor and tangible, non-transitory memory on which instructions are recorded, the control unit being adapted to activate and/or adjust the heating element based on the data obtained by the internal hygrometer;
• an interior vent cover and an exterior vent cover located at an interior end and an exterior end, respectively, of the at least one cavity;
• an internal louver located between the desiccant and the interior vent cover;
• an external louver located between the desiccant and the exterior vent cover, the internal louver and the external louver having a respective closed state and a respective open state;
• wherein the desiccant is adapted to collect moisture within the casing during a collection phase of dehumidification and the heating element is adapted to dry the desiccant during a reconditioning phase of the dehumidification;
• and
• wherein the internal louver is actuated to the respective closed state during the reconditioning phase and the external louver is actuated to the respective closed state during the collection phase.