The present invention relates to a battery pack having a cooling unit provided outside a pack case, and more particularly a battery pack including a battery module (100) including one or more unit cells; a case (200) having a receiving portion configured to receive the battery module (100); a cooling unit (300) located at an outer bottom surface of the case (200); and a reinforcement member (400) configured to protect the cooling unit (300).

Disclosed is a battery module with improved manufacturing efficiency and improved cooling efficiency. The battery module includes a plurality of secondary batteries; and a cooling member configured so that the plurality of secondary batteries are mounted thereto, and the cooling member includes an upper frame having a plate shape with a predetermined length so that the plurality of secondary batteries are mounted to a first surface thereof; and a lower frame coupled to a second surface of the upper frame on a side opposite the first surface and having a coolant channel configured so that a coolant flows through the coolant channel.

Disclosed is a battery module with improved manufacturing efficiency and improved cooling efficiency. The battery module includes a plurality of secondary batteries; and a cooling member configured so that the plurality of secondary batteries are mounted thereto, and the cooling member includes an upper frame having a plate shape with a predetermined length so that the plurality of secondary batteries are mounted to a first surface thereof; and a lower frame coupled to a second surface of the upper frame on a side opposite the first surface and having a coolant channel configured so that a coolant flows through the coolant channel.

A battery pack is provided. The battery pack includes a battery cell assembly including at least a battery cell, a heat dissipation member, and a plate member; and an exterior case. The heat dissipation member and the plate member are disposed in this order on one or both of an electrode of the battery cell and a side surface of the battery cell along a direction in which the battery cell assembly is assembled in the exterior case.

A battery pack is provided. The battery pack includes a battery cell assembly including at least a battery cell, a heat dissipation member, and a plate member; and an exterior case. The heat dissipation member and the plate member are disposed in this order on one or both of an electrode of the battery cell and a side surface of the battery cell along a direction in which the battery cell assembly is assembled in the exterior case.

An assembled battery includes a plurality of Peltier elements, a plurality of control circuits each of which controls an associated one of the plurality of Peltier elements, a plurality of battery cells at least one of which is connected to one end of each of the plurality of Peltier elements, and a heat transfer plate connected to the other end of each of the plurality of Peltier elements.

An assembled battery includes a plurality of Peltier elements, a plurality of control circuits each of which controls an associated one of the plurality of Peltier elements, a plurality of battery cells at least one of which is connected to one end of each of the plurality of Peltier elements, and a heat transfer plate connected to the other end of each of the plurality of Peltier elements.

A stack has an end surface located at an end portion in a first direction. A restraint portion includes a first member, a second member, and an adhesive agent layer. The first member has a main body portion and a protrusion portion. The protrusion portion protrudes from the main body portion in a second direction intersecting the first direction. The second member is provided with a recess portion that receives at least a portion of the protrusion portion in the second direction. The adhesive agent layer adheres the first member and the second member to each other. One of the first member and the second member is provided to face the end surface of the stack. The protrusion portion and the recess portion are engaged with each other with the adhesive agent layer being interposed between the protrusion portion and the recess portion.

A stack has an end surface located at an end portion in a first direction. A restraint portion includes a first member, a second member, and an adhesive agent layer. The first member has a main body portion and a protrusion portion. The protrusion portion protrudes from the main body portion in a second direction intersecting the first direction. The second member is provided with a recess portion that receives at least a portion of the protrusion portion in the second direction. The adhesive agent layer adheres the first member and the second member to each other. One of the first member and the second member is provided to face the end surface of the stack. The protrusion portion and the recess portion are engaged with each other with the adhesive agent layer being interposed between the protrusion portion and the recess portion.

A battery module and a method of assembling a battery module are provided. The method includes selectively applying a light-cure adhesive to recesses in a first side of a carrier layer and inserting battery cells into respective recesses. The method further includes exposing the first side of the carrier layer to light to at least partially cure the light-cure adhesive with the carrier layer in a first orientation, moving the carrier layer into a second orientation, and exposing a second opposite side of the carrier layer to light to fully cure the light-cure adhesive. The recesses may include a sidewall having crush points spaced apart along the sidewall and a bottom portion having an opening between a pair of crush points, where adhesive is not disposed between the pair of crush points.