Battery block and battery module provided with same

A battery block comprising a plurality of assembled batteries that are arranged in parallel to each other, the plurality of assembled batteries being each formed of a plurality of batteries as a unit, wherein:

• each of the plurality of batteries has a positive-electrode terminal and a negative-electrode terminal which are electrically insulated from each other on one end portion of the battery,
• each of the plurality of assembled batteries includes:
• the plurality of batteries which are arranged in a row in a state where the one end portion of each of the plurality of batteries is directed in a same direction;
• an insulation holder which is disposed on a side of the one end portion of each of the plurality of batteries and holds the plurality of batteries;
• and
• a positive-electrode bus bar which is disposed on the one end portion of each of the plurality of batteries and connects the positive-electrode terminals of the plurality of batteries to each other in parallel, and a negative-electrode bus bar which is disposed on the one end portion of each of the plurality of batteries and connects the negative-electrode terminals of the plurality of batteries to each other in parallel,
• the positive-electrode bus bar and the negative-electrode bus bar are respectively held by holding portions which are formed on the insulation holder in parallel to each other along a row direction,
• at least one of the positive-electrode bus bar and the negative-electrode includes a current collector plate, and a plurality of connecting pieces extending from the current collector plate,
• at least a portion of the current collector plate located in one of the holding portions extends in a direction perpendicular to a top surface of the insulation holder, where a thickness direction of the current collector plate crosses the direction perpendicular to the top surface of the insulation holder, and
• the at least portion of the current collector plate is held by at least the holding portions.