Battery module comprising bus bar assembly with elastic guiders, and battery pack and vehicle comprising same battery module

A battery module, comprising:

• a plurality of battery cells having electrode leads protruding on at least one side of each of the plurality of battery cells;
• and
• a bus bar assembly configured to electrically connect the electrode leads of the plurality of battery cells,
• wherein the bus bar assembly includes:
• a bus bar frame configured to cover at least one side of each of the plurality of battery cells;
• a plurality of lead slots defined by the bus bar frame sized and shaped for the electrode leads to pass therethrough;
• at least one sensing bus bar disposed within each of the plurality of lead slots and connected to the electrode leads;
• and
• at least one elastic guider disposed at first and second opposing sides and a third side of the at least one sensing bus bar, the at least one elastic guider configured to support the at least one sensing bus bar in first and second opposing directions and third and fourth opposing directions of the bus bar frame,
• wherein each of the at least one elastic guider includes a leaf spring configured to be elastically movable along only a single dimension.