Abstract: A battery module includes a cell stack in which a plurality of unit cells including terminal parts are aligned in a first direction and an insulating member surrounds the plurality of unit cells; and a module housing in which a plurality of receiving parts, into each of which the cell stack is configured to be inserted, are provided and are aligned in a first direction and a second direction perpendicular to the first direction, wherein each of the plurality of receiving parts includes a fixing wall around the cell stack and having at least a portion which is in contact with the cell stack. The cell stacks adjacent to each other in the second direction are electrically connected to each other, and the cell stacks adjacent to each other in the first direction are electrically disconnected from each other, when not connected to an end module.

Abstract: A rechargeable battery and a battery module are provided. According to embodiments, a rechargeable battery includes: an electrode assembly including a first electrode, a second electrode, and a separator; a case accommodating the electrode assembly therein and including an open side; a cap plate coupled to the open side of the case; and a terminal portion arranged on the cap plate to be electrically connected to the electrode assembly, and the terminal portion is slidable in a direction on the cap plate.

Abstract: A battery pack includes: a plurality of parallel modules arranged in an arrangement direction; and a bus bar through which different polarities of parallel modules of the plurality of parallel modules that are not adjacent to each other in the arrangement direction are connected in series to each other. In the battery pack, output terminals having different polarities are provided at adjacent positions. Therefore, the battery pack may be easily electrically connected to a set device. In addition, since the electrical paths of the output terminals are shortened, the battery pack may have improved electrical output power and spatial efficiency by a simple structure, and may be durable against vibrations and shocks.