Switching Device and Energy Storage System

An energy storage system (10) comprising at least a first battery (500(1)), a second battery (500(2)) and a switching device (100);

• wherein the switching device (100) includes:
• a fixed bus bar arrangement, which comprises at least a pair of fixed input bus bars (140, 142) and a pair of fixed output bus bars (144, 146);
• a moveable bus bar arrangement, which comprises at least one connection bus bar (130, 132);
• and
• at least one actuation element (117), which is configured to change a position of the moveable bus bar arrangement at least to and from a first switching position and to and from a second switching position;
• wherein in the first switching position, each of the fixed input bus bars (140, 142) is electrically connected to respectively one of the fixed output bus bars (144, 146), and in the second switching position, the pair of fixed input bus bars (140, 142), is electrically connected to each other, and
• wherein the moveable bus bar arrangement is rotated by the at least one actuation element (117) for changing the position of the moveable bus bar arrangement;
• wherein the first battery (500(1)) and the second battery (500(2)) are electrically connected to the switching device (100) in such a manner, that the first battery (500(1)) and the second battery (500(2)) are switchable by the switching device (100) between a series state, in which the first battery (500(1)) and the second battery (500(2)) are electrically connected by the switching device (100) in series, and a parallel state, in which the first battery (500(1)) and the second battery (500(2)) are electrically connected by the switching device (100) in parallel.