A battery module includes a first battery including a first terminal, a second battery including a second terminal, a bus bar located above the first and second batteries, and a cover member located below the bus bar. The bus bar includes a first part connected to the first terminal, a second part connected to the second terminal, and a fuse part positioned between the first part. The fuse part is meltable by a lower current than the first and second parts. The cover member is insulative. The cover member includes a cover part and a support part located on the cover part. In a state in which the fuse part has melted, the support part supports the first part so that a position of an end portion of the first part is higher than a position of an end portion of the second part.

A battery assembly device for a battery jump starting device. The battery assembly is configured to maximize electrical conductivity from a battery pack of the battery jump starting device to a battery to be recharged.

A battery assembly device for a battery jump starting device. The battery assembly is configured to maximize electrical conductivity from a battery pack of the battery jump starting device to a battery to be recharged.

The present disclosure provides a secondary battery, a battery module and a vehicle. The secondary battery includes an electrode assembly, a case and a cap assembly. The case has an accommodating cavity, and the electrode assembly is accommodated in the accommodating cavity. The electrode assembly includes electrode units, and the electrode units are stacked in an axial direction of the accommodating cavity. The cap assembly includes a cap plate and an insulating member provided at an inner side of the cap plate, the cap plate is connected with the case, and the insulating member is positioned at a side of the electrode assembly in the axial direction. The insulating member is provided with a first surface at a side close to the electrode assembly, and the first surface is a flat surface.

A secondary battery has increased space utilization efficiency and can increase a capacity of an electrode assembly within a given dimension. In an exemplary embodiment, a secondary battery includes: an electrode assembly including an electrode uncoated portion; a case receiving the electrode assembly; a cap plate coupled to a top portion of the case and sealing the case; and a current collector including a terminal connector positioned between the electrode assembly and the cap plate, and an electrode connector bent at an end of the terminal connector and positioned between the electrode assembly and the case, and the electrode connector includes a first region connected to the terminal connector and protruding toward the case, and a second region positioned under the first region and protruding toward the electrode assembly.

The present disclosure provides a cap assembly for a secondary battery, a secondary battery and a battery module. The cap assembly for the secondary battery includes a cap plate, a first electrode terminal, and a sealing member, wherein: the cap plate has an electrode lead-out hole; the first electrode terminal includes a first terminal board and a second terminal board connected with the first terminal board, wherein the first terminal board is located at a side of the second terminal board away from the cap plate, the second terminal board covers the electrode lead-out hole, and the material of the first terminal board and the material of the second terminal board have different base metals; the sealing member surrounds the electrode lead-out hole and is disposed between the cap plate and the first electrode terminal to seal the electrode lead-out hole.

An embodiment of the present invention provides an electrode assembly including: a plurality of first electrodes provided with one side edges connected to each other by a first fixing portion; a plurality of second electrodes provided with one side edges connected to each other by a second fixing portion and inserted between the other side edges of the first electrodes; a separator interposed between the first electrode and the second electrode; and lead tabs including a first current collecting tab connected to the first electrode and a second current collecting tab connected to the second electrode.

Provided is a secondary battery for testing an internal short, and a method and apparatus for testing an internal short of a secondary battery using the same. The secondary battery for testing an internal short according to the present disclosure includes a positive electrode side metal terminal having one end disposed between a positive electrode plate and a separator of the secondary battery, and a negative electrode side metal terminal having one end disposed between a negative electrode plate and the separator of the secondary battery, and is used to cause an internal short by contact between the other end of the positive electrode side metal terminal and the other end of the negative electrode side metal terminal.

Provided is a secondary battery for testing an internal short, and a method and apparatus for testing an internal short of a secondary battery using the same. The secondary battery for testing an internal short according to the present disclosure includes a positive electrode side metal terminal having one end disposed between a positive electrode plate and a separator of the secondary battery, and a negative electrode side metal terminal having one end disposed between a negative electrode plate and the separator of the secondary battery, and is used to cause an internal short by contact between the other end of the positive electrode side metal terminal and the other end of the negative electrode side metal terminal.

A power storage module comprises: a frame body; a plurality of power storage cells accommodated in the frame body; a bridging portion that is provided inside the frame body and connects an upper portion and a lower portion of the frame body to each other; and two flange portions that are provided outside the frame body and project in directions opposite to each other. The two flange portions are located above a central portion of the frame body in a height direction.