BATTERY SYSTEM WITH FANS IN THE BATTERY CELL HOLDER, AND METHOD FOR A HOMOGENEOUS TEMPERATURE DISTRIBUTION WITHIN THE BATTERY SYSTEM

The invention relates to a battery system (200) with a battery housing which comprises a main part (201), a first cover element (202), and a second cover element (203). The first cover element (202) closes a first open end face of the main part (201), and the second cover element (203) closes a second open end face of the main part (201). The battery system also comprises a battery cell holder (204) which has battery cell receiving areas for a plurality of battery cells (205), wherein the battery cell holder (204) has the plurality of battery cells (205), and the battery cell holder (204) is arranged within the battery housing. The battery system also comprises a battery management system (109) which is configured to monitor the plurality of battery cells (205) and detect temperatures of the individual battery cells (205). The invention is characterized in that the battery cell holder (204) has at least one first fan receiving area with a first fan (206) and a second fan receiving area with a second fan (207), and the first fan (206) and the second fan (207) have different flow directions, said first fan and second fan being actuated by the battery management system (109) depending on a threshold being exceeded by the temperature of the individual battery cells (205).