Battery module, device, and failure handling method for failed battery cell

A battery module, wherein the battery module comprises:

• a battery cell arrangement structure, comprising a plurality of battery cells arranged along a length direction of the battery module, wherein the battery cells comprise electrode terminals that are arranged along the length direction, and face toward a width direction of the battery module, and the battery cells comprise a failed battery cell;
• a box body, wherein the box body comprises an accommodation cavity, and the battery cell arrangement structure is located in the accommodation cavity;
• a mounting beam, wherein the mounting beam is located in the accommodation cavity and at an end of the battery cell arrangement structure along the width direction, and along a height direction of the battery module, the mounting beam comprises a second upper end surface;
• a pressing plate, wherein at least part of the pressing plate is located at an end of the battery cell arrangement structure along the height direction, and the pressing plate is detachably connected to the mounting beam;
• and
• a conductive component, wherein the conductive component is connected to a positive electrode terminal and a negative electrode terminal of the failed battery cell;
• wherein, along the height direction, at least part of the conductive component is located between the second upper end surface and an uppermost portion of the pressing plate.