Lg Chem, Ltd

Lg Energy Solution, Ltd.

Byoung-Cheon Jeong

Jeong-O Mun

Dal-Mo Kang

Jung-Hoon Lee

Eun-Gyu Shin

Tai-Jin Jung

Ho-June Chi

Yoon-Koo Lee

Andreas Track

Mi-Geum Choi

Jong-Young Lee

Alexander Eichhorn

Jae-Uk Ryu

Hang-June Choi

Se-Won Kim

Torsten Karcher

A pouch exterior material that enables an electrode assembly to be easily mounted on an accommodating portion at a proper position, having an integrated shape and including an inserting portion provided at a center of the pouch exterior material and having a width equal to a thickness of the electrode assembly, accommodating portions provided symmetrically at two sides of the inserting portion and gradually deepening from a portion corresponding to a width center of the electrode assembly towards a portion corresponding to an edge of the electrode assembly, and a triangular stepped portion provided at two ends of the inserting portion and having a depth gradually decreasing towards an end.

Pouch exterior material for secondary battery, pouch type secondary battery using the same, and method of manufacturing the same

Disclosed are a pouch exterior capable of easily mounting an electrode assembly at an accurate position between accommodating parts, having an integrated form to minimize sealing parts contacting the air and to increase a lifetime of a battery, capable of preventing a rupture of the pouch exterior in an assembly process, and capable of increasing an energy density of a cell, a pouch-type secondary battery using the pouch exterior, and a method of manufacturing the pouch-type secondary battery. A pouch exterior for a secondary battery, according to the present disclosure, includes two corresponding accommodating parts configured to mount an electrode assembly therebetween and symmetrically formed at both sides by disposing a protruding part therebetween, and is folded along two folding lines outside a center pan of the protruding part by vertically mounting a side surface of the electrode assembly on the protruding part, such that folded parts surround side edges of the electrode assembly.

Pouch exterior for secondary battery, pouch-type secondary battery using the pouch exterior, and method of manufacturing the pouch-type secondary battery

A battery module according to the present disclosure includes a cell assembly including a plurality of battery cells stacked in a vertical direction, each battery cell having an electrode lead in a shape of a plate that protrudes forward in a depth direction perpendicular to the vertical direction, the electrode lead being bent for surface contact in the vertical direction with an adjacent electrode lead, the electrode lead having a protruding part that protrudes forward in the depth direction from a front side end thereof, and a sensing terminal module having a plurality of sensing terminals made of an electrically conductive material and a plurality terminal seating holes in which corresponding ones of the sensing terminals are seated and supported, the protruding part of each electrode lead being press-fit into a corresponding one of the sensing terminals which compresses around the protruding part.

Battery module, and battery pack and vehicle comprising same

Provided is a battery module in which a connection structure between electrode leads is changed to prevent a heat generation phenomenon when overcharged and to allow easy connection and disconnection between secondary batteries, and a method for manufacturing the same. The battery module according to the present disclosure includes a secondary battery stack formed by stacking a plurality of secondary batteries having electrode leads, wherein each electrode lead protrudes from the corresponding secondary battery, and each electrode lead has a bent part, and the bent parts of opposite-polarity electrode leads of neighboring secondary batteries are stacked with an elastic body interposed therebetween, and the corresponding stacked part is fastened by an insulating bolt including a washer, with the elastic body being compressed.

Battery module with improved connection structure between electrode leads and method for manufacturing the same

Disclosed is an air-cooling battery pack, which includes a cell assembly having a plurality of cells stacked therein; an air duct disposed to contact the cell assembly and having an air passage formed therein to allow a cooling air to move therethrough; a coupling groove formed at the air duct to elongate in a longitudinal direction; and a battery management system (BMS) plate having a BMS for managing the cells and assembled to the air duct by a slider slidably inserted into the coupling groove.

Air-cooling battery pack having improved assembling structure

A battery module according to the present disclosure includes a plurality of battery cells, each including an electrode lead which extends in horizontal direction from a front side, the electrode lead having at least one bent part, wherein the electrode leads disposed adjacent to each other in up-down direction are stacked in up-down direction in surface contact with each other, and a plurality of lead cartridges, each including two post parts disposed at each of an outer side of one end of the electrode lead and an outer side of the other end, a partition part formed in a shape of a plate which stands erect in up-down direction between the two post parts and having a receiving space in which the electrode leads in surface contact are individually received inside, and a first spacer part which protrudes forward from top of the partition part to space the electrode lead which protrudes out of the receiving space apart from a different electrode lead.

A jig assembly for laser welding includes a jig body having a first penetration portion through which laser light for welding is capable of passing; a contact member connected to the jig body to contact a welding target, the contact member having a second penetration portion through which the laser light passing through the first penetration portion is capable of passing toward the welding target; a tilting unit having a hinge structure to connect the jig body and the contact member to each other; and an elastic member interposed between the jig body and the contact member to apply an elastic force to provide close contact between the contact member and the welding target.

Jig assembly for laser welding

Discussed is an air-cooling battery module, which includes a cell assembly having a plurality of cells and a cooling member having a duct disposed to contact an edge portion of the cell assembly and having an air passage formed therein so that a cooling air moves therethrough, wherein the inside of the duct has a truss structure.

Air-cooling battery module

Disclosed are a pouch exterior capable of easily mounting an electrode assembly at an accurate position between accommodating parts, having an integrated form to minimize sealing parts contacting the air and to increase a lifetime of a battery, capable of preventing a rupture of the pouch exterior in an assembly process, and capable of increasing an energy density of a cell, a pouch-type secondary battery using the pouch exterior, and a method of manufacturing the pouch-type secondary battery. A pouch exterior for a secondary battery, according to the present disclosure, includes two corresponding accommodating parts configured to mount an electrode assembly therebetween and symmetrically formed at both sides by disposing a protruding part therebetween, and is folded along two folding lines outside a center part of the protruding part by vertically mounting a side surface of the electrode assembly on the protruding part, such that folded parts surround side edges of the electrode assembly.

Disclosed is a battery module, as well as a battery pack and a vehicle comprising the same. The battery module includes a plurality of battery cells, each having an accommodation portion in which an electrode assembly is accommodated and a sealing portion for sealing the accommodation portion, thermal-conductive sheets configured to surround at least a part of the battery cells in surface contact with the battery cells, side cooling fins located at an inner side of the thermal-conductive sheets and at least partially in contact with the accommodation portions of the battery cells, and a cooling plate in contact with the thermal-conductive sheet.

Battery module, and battery pack and vehicle comprising the same

Provided are a heat dissipation material, a method of manufacturing the same, and a battery module including the same. The heat dissipation material according to an embodiment of the present disclosure may include: a plurality of foam pad members provided to be capable of buffering; and a graphite member configured to surround the foam pad member for heat conduction, wherein the graphite member is provided to surround the plurality of foam pad members, respectively.

Heat dissipation material, method of manufacturing the same, and battery module including the heat dissipation material

Disclosed is a battery module, which includes a battery cell assembly having at least one battery cell, a module case configured to accommodate the battery cell assembly, and a module connector mounted at the module case, wherein the module connector includes a connector pin electrically connected to the battery cell assembly at the inside of the module case so as to be connected to an external connector at the outside of the module case, a connector housing mounted to an outer surface of the module case to surround the connector pin, and a sealing member provided between the connector housing and the module case.

Battery module, battery pack comprising battery module, and vehicle comprising battery pack

Disclosed are a busbar for cooling battery cells and a battery module using the same. The busbar for cooling battery cells is a busbar configured to cool a plurality of battery cells included in a battery module, and includes: a body portion formed in a strap shape and contacting an electrode lead of each battery cell; and a bent portion integrally formed with the body portion and extending from one end of the body portion to be bent in a thickness direction of the body portion, wherein the bent portion includes: a coupling groove coupled to a coupling protrusion that is prepared on a cooling plate of the battery module or a coupling protrusion that is prepared on a predetermined frame of the battery module, the predetermined frame supporting the busbar; and a thermal contact surface thermally contacting the cooling plate. Therefore, the busbar efficiently cools the electrode lead of each battery cell, which emits a large amount of heat, and allows simplification and size reduction of a structure of the battery module and reduction in manufacturing costs of the battery module.

Busbar for cooling battery cell and battery module using same

Disclosed is a battery module, and a battery pack and a vehicle including the battery module. The battery module includes: one or a plurality of unit modules; and a module case having an accommodation space therein in which the plurality of unit modules are placed, wherein the unit module includes: a tube-type unit case having a hollow formed therein; a plurality of battery cells configured in a can-type secondary battery form, located in the hollow of the unit case, disposed side by side along a length direction thereof and electrically connected to each other; and an electrode lead having a positive electrode lead located at one side of the unit module and a negative electrode lead located at the other side of the unit module.

Growing community of inventors

Daejeon, South Korea

Byoung-Cheon Jeong