A battery including a swelling sensing unit. The battery includes a case and an electrode assembly in the case. The battery further includes a film on a surface of the battery. The film includes a predetermined amount of elasticity or having substantially no elasticity.

A battery module, and a battery pack and a vehicle, each including the battery module. The battery module includes a frame; a plurality of battery cells arranged in the frame; a heat sink in contact with one side of the battery cell; and a cooling fin in contact with the heat sink and in contact with the other side of the battery cell.

An energy storage system includes a pair of rack frames spaced apart from each other and arranged side by side; a plurality of L brackets fastened to the rack frames; a plurality of battery modules respectively placed on a pair of L brackets facing each other to form a plurality of layers along a longitudinal direction of the rack frame; a first heat transfer member interposed between the battery module and the L bracket; and a second heat transfer member interposed between the rack frame and the L bracket.

An energy storage system includes a pair of rack frames spaced apart from each other and arranged side by side; a plurality of L brackets fastened to the rack frames; a plurality of battery modules respectively placed on a pair of L brackets facing each other to form a plurality of layers along a longitudinal direction of the rack frame; a first heat transfer member interposed between the battery module and the L bracket; and a second heat transfer member interposed between the rack frame and the L bracket.

A paper suitable for use in a battery or battery pack as a flame barrier or thermal insulation, the paper comprising 60 to 95 weight percent aerogel powder and 5 to 40 weight aramid polymer fibrils; the paper having a thickness of 50 to 4000 micrometers.

A battery module includes: a battery cell stacked member in which a plurality of battery cells are stacked; a bus bar frame respectively connected to the front and rear surfaces of the battery cell stacked member; and a frame member accommodating the battery cell stacked member to which the bus bar frame is mounted, wherein one side of the bottom part of the frame member includes at least two step regions, at least two step regions are spaced apart in the same direction as the direction in which the battery cells are stacked, and the bus bar frame includes a support positioned to correspond to the step region.

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).

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).

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.