Battery module thermal management

A battery module comprising:

• a. an enclosure including first and second covers, wherein the first cover includes a surface feature for dissipating heat;
• b. a plurality of battery cells positioned between the first and second covers such that terminals of the plurality of battery cells face the first and second covers;
• c. one or more first lead plates positioned between the first cover and the plurality of battery cells, the one or more first lead plates being electrically connected with at least some of the battery cells;
• and
• d. a first thermally conductive layer extending between and contacting the one or more first lead plates and the first cover, the first thermally conductive layer being shaped to at least partially define a gas vent channel in fluid communication with the terminals of at least some of the plurality of battery cells.

A battery device comprising:

• a) an enclosure having an inlet and an outlet;
• b) a plurality of battery modules supported by the enclosure between the inlet and the outlet;
• c) a plurality of fluid paths disposed between the inlet and the outlet positioned to provide heat convective airflow across the plurality of battery modules;
• and
• d) a fan supported by the enclosure to cause the heat convective airflow.