A battery pack includes battery modules each including secondary batteries; a connection plate having a body portion at the upper portion or the lower portion of the secondary batteries and provided with connection terminals respectively in electrical contact and connection with the electrode terminal at one of the secondary batteries, and a connection portion to protrusively extend in a left or right direction from the body portion so that a part of the protrusively extending portion is bent upward or downward from the body portion and the bent end is bonded to a portion of the other connection plate; and a module housing having hollows in which the secondary batteries are inserted and accommodated, the module housing having a separating groove at an outer wall thereof by indenting a portion of the outer wall inward to be spaced apart from the bent end of the connection portion.

A battery module capable of maintaining constant surface pressure of battery cells even if a swelling occurs in the battery cells accommodated in the battery module; a battery module system; and a battery pack including the battery module are provided.

A carrier means 1 for retaining and locating one or more sensing means 2,3 within a battery pack, the battery pack comprising one or more cells and a thermal management duct 10 in thermal contact with at least one cell, the carrier means 1 comprising a sensing means 2,3 for sensing one or more conditions of the battery pack and a connection means 4 for providing a communicative connection to the carrier means 1, wherein the sensing means 2,3 is operably connected to the connection means 4.

A lithium-ion battery module includes a housing having a plurality of partitions configured to define a plurality of compartments within a housing. The battery module also includes a lithium-ion cell element provided in each of the compartments of the housing. The battery module further includes a cover coupled to the housing and configured to route electrolyte into each of the compartments. The cover is also configured to seal the compartments of the housing.

A battery module may include a plurality of battery cells that are stacked on each other; and a circuit module which is electrically connected to the plurality of battery cells and includes a plate-shaped circuit part having a width and a length. The circuit part may be disposed between any one pair of battery cells of the plurality of battery cells in a state in which a width direction of the circuit part is parallel to a direction perpendicular to a direction in which the plurality of battery cells are stacked.

A leadframe (10) for a battery apparatus (100) of an electric vehicle, having an encircling frame section (20) and at least one separating section (30) that subdivides the frame section (20) into at least two module receptacles (40) for receiving in each case one cell module (120). The encircling frame section (20) has an encircling outer seal (50) for sealing off against the passage of liquid. Additionally, the at least one separating section (30), together with the frame section (20), has an inner seal (60) that encircles each module receptacle (40) for sealing off against the passage of liquid.

A leadframe (10) for a battery apparatus (100) of an electric vehicle, having an encircling frame section (20) and at least one separating section (30) that subdivides the frame section (20) into at least two module receptacles (40) for receiving in each case one cell module (120). The encircling frame section (20) has an encircling outer seal (50) for sealing off against the passage of liquid. Additionally, the at least one separating section (30), together with the frame section (20), has an inner seal (60) that encircles each module receptacle (40) for sealing off against the passage of liquid.

A battery module prevents an electrolyte solution from leaking out in the event of electrolyte solution leakage. To achieve the object, the battery module according to the present disclosure includes at least one cell assembly including a plurality of secondary batteries stacked in a direction, each secondary battery including an electrode lead, a base plate disposed below the cell assembly and extending in a horizontal direction to support a bottom of the cell assembly, and at least one base insulation member interposed between the cell assembly and the base plate and having a receiving portion formed concavely in a downward direction to receive a part of the cell assembly.

A battery module prevents an electrolyte solution from leaking out in the event of electrolyte solution leakage. To achieve the object, the battery module according to the present disclosure includes at least one cell assembly including a plurality of secondary batteries stacked in a direction, each secondary battery including an electrode lead, a base plate disposed below the cell assembly and extending in a horizontal direction to support a bottom of the cell assembly, and at least one base insulation member interposed between the cell assembly and the base plate and having a receiving portion formed concavely in a downward direction to receive a part of the cell assembly.

A battery module including a stack of battery cells, a U-shaped frame that accommodates the stack of battery cells and has an opened upper part, and at least two upper plates covering a part of the stack of battery cells at the opened upper part of the U-shaped frame is provided.