Battery module with air cooling capability

A battery module with air cooling capability comprising:

• (a) at least two battery blocks;
• (b) wherein the battery blocks each comprise a plurality of cylindrical round cells arranged in corresponding receptacles of a cell holder, wherein longitudinal axes of the cylindrical round cells lie parallel to one another;
• (c) wherein air passage openings are provided in the cell holders, through which air can flow through the battery blocks in parallel to the longitudinal axes of the round cells;
• (d) wherein the battery blocks are stacked on one another with spacing so that a stack intermediate space results between adjacent battery blocks in the stack;
• (e) a housing comprising containing the stack made up of the battery blocks, wherein the stack is spaced apart from walls of the housing so that two terminal free spaces result between terminal battery blocks of the stack and the walls;
• (f) wherein the housing has at least one air inlet and at least one air outlet;
• (g) a fan assigned to the battery module to generate an airflow between the at least one air inlet and the at least one air outlet, and
• (h) guiding means that ensure that the airflow is guided starting from the stack intermediate space between two adjacent battery blocks through the air passage openings in the cell holders between the cylindrical round cells of the individual battery blocks and through the terminal free spaces in a direction of the at least one air outlet;
• and
• (i) wherein regions of the air passage openings of the cell holders are each formed by a nozzle that forms air entry and air exit channels, wherein each nozzle adjoins three cylindrical round cells of the respective battery block, and wherein the nozzles, together with recesses in the cell holders, form the receptacles for the cylindrical round cells such that the cylindrical round cells are delimited and fixed in position by the nozzles without requiring additional holding means.