Battery module, comprising: a battery cell arrangement structure, wherein the battery cell arrangement structure comprises a first battery cell arrangement structure and a second battery cell arrangement structure, the first battery cell arrangement structure and the second battery cell arrangement structure both comprise a plurality of battery cells arranged along a horizontal direction, and the first battery cell arrangement structure and the second battery cell arrangement structure are arranged along a vertical direction; a plurality of bus bars connected to the plurality of battery cells, wherein the plurality of battery cells are electrically connected by means of the plurality of bus bars to form a first output electrode of the battery module and a second output electrode of the battery module, and the first output electrode of the battery module and the second output electrode of the battery module are arranged at a same end of the battery module along the horizontal direction; and a fixing plate, wherein the fixing plate is located on a side of the battery cell arrangement structure along the horizontal direction, the fixing plate is provided with an insulating portion, and at least a part of the insulating portion is located between the first output electrode of the battery module and the second output electrode of the battery module to separate the first output electrode of the battery module from the second output electrode of the battery module; wherein the first output electrode of the battery module comprises a first output body electrically connected to an electrode terminal of one of the battery cells and a first bended portion connected to the first output body, and the first bended portion is bended in a direction close to the fixing plate, such that an angle is formed between the first output body and the first bended portion; the second output electrode of the battery module comprises a second output body electrically connected to an electrode terminal of another one of the battery cells and a second bended portion connected to the second output body, and the second bended portion is bended in a direction close to the fixing plate, such that an angle is formed between the second output body and the second bended portion; and at least a part of the insulating portion is located between the first bended portion and the second bended portion. a battery cell arrangement structure, wherein the battery cell arrangement structure comprises a first battery cell arrangement structure and a second battery cell arrangement structure, the first battery cell arrangement structure and the second battery cell arrangement structure both comprise a plurality of battery cells arranged along a horizontal direction, and the first battery cell arrangement structure and the second battery cell arrangement structure are arranged along a vertical direction; a plurality of bus bars connected to the plurality of battery cells, wherein the plurality of battery cells are electrically connected by means of the plurality of bus bars to form a first output electrode of the battery module and a second output electrode of the battery module, and the first output electrode of the battery module and the second output electrode of the battery module are arranged at a same end of the battery module along the horizontal direction; and a fixing plate, wherein the fixing plate is located on a side of the battery cell arrangement structure along the horizontal direction, the fixing plate is provided with an insulating portion, and at least a part of the insulating portion is located between the first output electrode of the battery module and the second output electrode of the battery module to separate the first output electrode of the battery module from the second output electrode of the battery module; wherein the first output electrode of the battery module comprises a first output body electrically connected to an electrode terminal of one of the battery cells and a first bended portion connected to the first output body, and the first bended portion is bended in a direction close to the fixing plate, such that an angle is formed between the first output body and the first bended portion; the second output electrode of the battery module comprises a second output body electrically connected to an electrode terminal of another one of the battery cells and a second bended portion connected to the second output body, and the second bended portion is bended in a direction close to the fixing plate, such that an angle is formed between the second output body and the second bended portion; and at least a part of the insulating portion is located between the first bended portion and the second bended portion.