Lg Chem, Ltd

Jaeseong Yeo

Jin Kyu Lee

Dal Mo Kang

BumHyun Lee

Hee Soo Yoon

Yongshik Shin

Jongmoon Yoon

Minchul Jang

Jin Woong Ha

Youngjoon Shin

Jeeho Kim

Bum Hyun Lee

Hanho Lee

Seung Yeob Park

Inchul Shin

Kwanyong Kim

Dal Moh Kang

Eun Ji Yoo

Jong Hwan Park

Disclosed herein is a battery module configured in a structure in which a plurality of battery cells or unit modules ('unit cells') are stacked, and a heat sink is mounted to electrical connection regions between the unit cells and/or to outsides of battery module connection members connected to the electrical connection regions.

Battery module of improved safety

Disclosed herein is a battery module using battery cells each having an electrode assembly mounted in a battery case including a resin layer and a metal layer as unit cells, wherein each battery cell has a thin upper end, including a sealing part, which is formed at a region where electrode terminals are placed, and an impact-absorbing member is mounted at the upper end of each battery cell. The battery module according to the present invention prevents the weak upper parts of battery cells, such as electrode terminals and sealing parts, from the breakage of the battery module or the occurrence of a short circuit in the battery module due to the movement of the battery cells caused by dropping of the battery module or application of external impacts to the battery module.

Middle or large-sized battery module employing impact-absorbing member

Disclosed herein is a middle or large-sized battery pack having a plurality of electrically connected battery modules, the middle or large-sized battery pack including an electrode terminal connecting device, wherein the electrode terminal connecting device includes a conductive connecting member coupled to electrode terminals of the battery modules to electrically connect the electrode terminals of the battery modules to each other and a shut-off cutter mounted to the conductive connecting member to shut off the circuit of the conductive connecting member when impact is applied to the battery pack in the longitudinal direction of the battery pack.

Battery pack containing electrode terminal connecting device

Disclosed herein is a battery module including a plurality of plate-shaped battery cells mounted in a module case in a state in which the plate-shaped battery cells are sequentially stacked, wherein each of the plate-shaped battery cells includes an electrode assembly of a cathode/separator/anode structure mounted in a battery case formed of a laminate sheet including a resin layer and a metal layer, and a plurality of heat dissipation members are disposed in two or more interfaces between the respective plate-shaped battery cells such that heat generated from the plate-shaped battery cells during charge and discharge of the plate-shaped battery cells is removed by thermal conduction through the heat dissipation members.

Battery module having excellent heat dissipation ability and battery pack employed with the same

Disclosed herein is a battery cartridge configured in a frame structure to mount a plate-shaped battery cell therein, the battery cartridge comprising a pair of plate-shaped frames configured to fix the outer circumference of the battery cell in a state in which at least one side of the battery cell is open, wherein each of the frames is provided at the outside thereof with an elastic pressing member configured to fix a heat dissipation member to the open side of the battery cell in a tight contact manner upon manufacture of a battery module.

Battery cartridge having elastic pressing member, and battery module containing the same

Disclosed herein is a battery module assembly including a plurality of battery modules, each including a plurality of battery cells or unit modules mounted in a module case in a state in which the battery cells or the unit modules are connected in series to each other, wherein the battery modules are arranged adjacent to each other in the lateral direction in a state in which the battery modules are electrically connected to each other, and a cooling member including a coolant conduit to allow a liquid coolant to flow therealong is mounted at the outside of each of the battery modules.

Battery module assembly of improved cooling efficiency

Disclosed herein are an equal distribution type connecting member for connecting two or more devices to an external circuit, the connection member including a first connection circuit connected to a connection point of the external circuit, and second connection circuits sequentially connected to the first connection circuit, the second connection circuits being constructed in a structure in which the sectional areas of the second connection circuits are increased and/or the lengths of the second connection circuits are decreased with the increase of the connection distance between the connection point of the external circuit and connection points of the devices, thereby equalizing internal resistances between the connection point of the external circuit and the connection points of the devices, and a middle- or large-sized battery pack including the same. The equal distribution type connecting member according to the present invention is capable of reducing the difference in internal resistances of the circuits, thereby increasing the overall life span of the battery pack. Also, the uniform charging and discharging efficiency of battery modules or battery cells is acquired, and therefore, it is possible to manufacture battery modules having optimized performance and a middle- or large-sized battery pack including the same.

Equal distribution-typed connecting member, and battery pack employed with the same

Disclosed herein is a battery cartridge having a plate-shaped battery cell mounted therein, wherein the battery cartridge includes a pair of plate-shaped frames configured to fix opposite sides of the battery cell at the edge thereof in a state in which the sides of the battery cell are open, and each of the frames is provided at the inside thereof, disposed in contact with the edge of the battery cell, with an elastic pressing member configured to press the edge of the battery cell.

Battery cartridge and battery module containing the same

Disclosed herein is a battery cell voltage balancing device for connecting two or more battery cells to one another in parallel so as to minimize a voltage difference between the respective battery cells, the battery cell voltage balancing device including an insulative main body having partitions, between which the two or more battery cells are mounted, respectively, configured in a structure in which the partitions are open upward, terminal connection parts disposed at opposite ends of the insulative main body for connecting cathodes and anodes of the battery cells mounted at the insulative main body to cathodes and anodes of neighboring battery cells mounted at the insulative main body, and an interval adjustment unit for variably adjusting an interval between the partitions in a state in which the battery cells are mounted between the partitions to achieve secure mounting of the battery cells between the respective partitions and electrical connection of electrode terminals of the respective battery cells to the terminal connection parts.

Battery cell voltage balancing device

Disclosed herein is a middle- or large-sized battery pack having a plurality of battery cells, which can be charged and discharged, stacked one on another with high density and electrically connected with each other. When the battery cells swell due to abnormal operation of the battery pack or degradation of the battery pack caused by the charge and discharge of the battery cells for a long period of time, stress is concentrated on a predetermined region of the battery pack due to the change of thickness of the swelling battery cells, whereby the physical change of the battery pack is caused, and the disconnection of an electrically connecting member of the battery pack is mechanically accomplished by the physical change of the battery pack. Consequently, the battery pack according to the present invention provides high safety.

Growing community of inventors

Daejeon, South Korea

Jaeseong Yeo