Battery pack comprising covering for cell module and electrical device

A battery pack, comprising:

• a battery pack housing;
• a cell module comprising a plurality of cell assemblies stacked along a first direction;
• at least one covering;
• a first resin layer;
• and
• at least one first structural member;
• wherein,
• the battery pack housing comprises a first housing and a second housing connected to each other;
• each cell assembly comprises at least one cell;
• the cell module comprises a first surface, a second surface, a first lateral face, and a second lateral face;
• the first surface and the second surface are disposed opposite to each other along the first direction, and the first lateral face and the second lateral face are disposed opposite to each other along a third direction;
• each covering comprises a first section, a second section, and a third section connected to the first section and the second section, wherein the first section covers at least a part of the first lateral face, the second section covers at least a part of the second lateral face, and the third section covers at least a part of the first surface;
• the cell module comprises a first region and a second region;
• along a second direction, the first region and the second region are located on two sides of one of the at least one covering, respectively;
• the first resin layer comprises a first resin material, wherein the first resin layer is bonded to the at least one covering, the first resin layer is disposed in the first region, the first resin layer bonds and fixes the cells of the plurality of cell assemblies to the first housing, and the first resin material comprises a pouring sealant;
• and
• each first structural member is disposed between two adjacent cell assemblies to partition the two adjacent cell assemblies and form a channel between the two adjacent cell assemblies, wherein a part of the channel located in the second region comprises a clearance, and wherein the at least one covering is configured to restrict flow of the first resin material into the channel.