Lg Chem, Ltd

Lg Energy Solution, Ltd.

Tae Hwan Roh

Tae Hyuck Kim

Jin Kyu Lee

Yoonhee Lee

Junhee Jung

Sooryoung Kim

Jong Woon Choi

Jun Hee Jung

Jung Oh Moon

Sung Gon Kim

Jun Seok Choi

Bu Gon Shin

Dal Mo Kang

Jong Moon Yoon

DalMo Kang

Yong Shik Shin

Jin Mi Jung

Seong Tae Kim

Dongyeon Kim

Seongtae Kim

Yoon Hee Lee

Hyung Jun Ahn

Su Chang Kim

Jong Soo Ha

Yu Jin Jeong

Hyun Young Cho

Hui Jeong Lee

Jung Jin Han

Nam In Kim

Do Wung Son

Disclosed is a battery pack including a battery module assembly including two or more battery modules, each of the battery modules having one or more battery cells arranged adjacent to each other in the state of being mounted in cartridges, a base plate allowing the battery module assembly to be loaded thereon, and a hold-down bracket fixing the battery module assembly to the base plate, wherein each of the cartridges includes a step portion having a lower part protruding outwards, the hold-down bracket includes an upper end portion covering upper surfaces of the step portions of the cartridges, a lower end portion coupled to the base plate, and a middle portion connecting the upper end portion and the lower end portion to each other, and a protrusion structure protruding in a direction toward the base plate is formed on the lower end portion.

Battery pack including hold-down bracket having protrusion structure formed thereon

A vehicle battery fire sensing apparatus and method includes a battery pack mounted to a vehicle structure and an electronic control unit. The battery pack includes a battery module including one or more battery cells, a battery management system configured to transmit a signal received from the battery module to the electronic control unit, and a battery pack case having a gas discharge portion configured to allow venting gas to be discharged therethrough. The vehicle battery fire sensing apparatus further includes a sensor provided at the vehicle structure, the sensor being configured to measure at least one of the temperature or pressure of the gas discharged from the gas discharge portion.

Vehicle battery fire sensing apparatus and method

A vehicle battery fire sensing apparatus includes a battery pack mounted to a vehicle structure, an electronic control unit, and at least one communication line, wherein the battery pack includes a battery module including at least one battery cell, a battery management system configured to transmit a signal received from the battery module to the electronic control unit, and a battery pack case having a gas discharge portion configured to allow venting gas to be discharged therethrough. The battery pack case is provided with a sensor configured to measure at least one of temperature and pressure, and a vehicle battery fire sensing method.

The present specification relates to a joint body of different materials, and a method of manufacturing the same. The joint body includes a metal layer; and a resin layer provided on and in contact with one surface of the metal layer. The metal layer comprises two or more etching grooves and two or more burrs provided on a surface of the metal layer adjacent to the etching grooves.

Joint body of different materials and method for manufacturing the same

Disclosed herein is A battery pack comprising: a pack housing; a base plate; at least two battery modules arranged such that the battery modules are located in a space defined between the pack housing and the base plate, each battery module including a plurality of battery cells or unit modules which can be charged and discharged; a first wall located at a first side of the base plate; a second wall located at a second side of the base plate; an external input terminal and an external output terminal are located at both of the first wall and the second wall, the battery modules being connected to the external input and output terminals in a state in which the battery modules are electrically connected in series or in parallel to each other; and a capacitor is present at the first or second wall adjacent to a corresponding one of the external input and output terminals, the capacitor being electrically connected to said corresponding one of the external input and output terminals.

Battery pack including noise reduction member

Disclosed herein is a battery pack configured to have a structure in which two or more battery modules, each of which includes a plurality of battery cells or unit modules which can be charged and discharged, are arranged such that the battery modules are mounted in a space defined between a pack housing and a base plate, the battery pack including the base plate on which the arranged battery modules are loaded, a sensing assembly mounted at upper ends of the battery modules for detecting voltage of the battery modules, a pair of tension bars mounted at the upper ends of the battery modules in a direction in which the battery modules are arranged for supporting the battery modules, a battery management system (BMS) mounted at an outside of an outermost one of the battery modules in a state in which the BMS is adjacent to the outermost one of the battery modules, the pack housing for surrounding the battery modules and the BMS, a lower end of the pack housing being coupled to the base plate, and a spacer disposed in a space defined between an inner surface of the pack housing and outer surfaces of the battery modules for restraining motion of upper end parts of the battery modules.

Battery pack including spacer

Disclosed herein is a battery pack including a battery module assembly configured to have a structure in which two or more battery modules, each of which includes battery cells arranged in an upright state such that electrode terminals of the battery cells are directed upward, are arranged such that the battery modules are adjacent to each other, and outward protrusions are formed at a lower end of one side or lower ends of opposite sides of each of the battery modules, a base plate, on a top of which the battery module assembly is loaded, and a hold down bracket having one side region covering the outward protrusions of the battery modules and the other side region coupled to the base plate so as to correctly fix the respective battery modules of the battery module assembly to the base plate.

Battery pack having hold down bracket

Disclosed herein is a battery module including a battery cell assembly constituted by at least two battery cells, a front plate and a rear plate fixed to the battery cell assembly such that the front plate and the rear plate cover outermost ones of the battery cells, an electrically insulative cover member mounted at an upper end of the battery cell assembly, the electrically insulative cover member being provided with through holes, through which electrode terminals of the battery cells extend, a PCB mounted on a bottom of the cover member, a plurality of conductive connection parts arranged on the cover member, the conductive connection parts being connected to the electrode terminals of the battery cells and the PCB, and a lower molding part located on the PCB at the bottom of the cover member, the lower molding part covering the connection between the PCB and the conductive connection parts.

Battery module having molding part for insulating

Disclosed herein is a battery module including a battery cell assembly having battery cells laterally arranged, a front plate and a rear plate fixed to outermost battery cells, an electrically insulative cover member mounted at an upper end of the battery cell assembly, the cover member being provided with through holes, through which electrode terminals of the battery cells extend, conductive connection parts arranged in a state in which the conductive connection parts are mounted at the cover member, the conductive connection parts being connected to the electrode terminals for detecting voltages of the battery cells while achieving electrical connection between the battery cells, cooling members interposed between the battery cells, each of the cooling members being provided with a coolant flow part having a hollow structure, in which a coolant flows, and a manifold connected to the cooling members for moving the coolant in the coolant flow part.

Battery module having water-cooled type cooling structure

Disclosed herein is a battery module configured to have a structure in which two or more unit modules, each of which includes one or more battery cells, a frame member configured to have a structure to surround outer edges of the one or more battery cells, the frame member including cooling manifold elements located at opposite ends of one side of the outer edges of the battery cells, and a cooling member mounted in the frame member such that the cooling member faces the battery cells while being in contact with the battery cells, the cooling member including a plate-shaped cooling fin having a shape and a size corresponding to those of the battery cells and a coolant conduit having a hollow structure located at an outer edge of the cooling fin, are arranged while being in tight contact with each other, wherein the coolant conduit includes a coolant inlet port and a coolant outlet port connected to the cooling manifold elements of the frame member of each of the unit modules in a communicating fashion.

Battery module including cooling structure in which coolant channel is minimally bent

Disclosed herein is a battery pack including at least one battery module including a battery cell stack constituted by two or more stacked battery cells that can be charged and discharged and a pack case for surrounding an outside of the battery module, wherein a liquid refrigerant isolated from an inner space of the pack case removes heat conducted from the battery cells through cooling of the pack case.

Battery pack having improved safety against leakage of liquid refrigerant

Disclosed is a battery pack configured such that a plurality of battery modules is connected to each other in series in a state in which the modules are in contact with each other or stacked adjacent to each other, the pack being fixed such that a stacked state of the modules is maintained even when volume of the modules is changed during charge and discharge, the pack including a cut-off portion connected in series to an electrical connection circuit between modules, a fixing member to fix a circuit breaker to at least one outer surface of the pack, and the breaker configured to be electrically conducted when an outer surface of at least one module expands by a reference volume value or more, the breaker being connected in series to the electrical connection circuit to short-circuit the cut-off portion when electric conduction is performed due to swelling of the modules.

Battery pack of improved safety

Disclosed herein is a battery assembly including at least two battery cells connected in series or in parallel. Each of the battery cells includes an electrode assembly including a cathode, an anode and a separator interposed between the cathode and the anode and a battery case in which the electrode assembly is mounted. An electrode terminal of a first battery cell and an electrode terminal of a second battery cell are formed as a single member at a series or parallel connection portion between the first and second battery cells.

Battery assembly having single electrode terminal connection part

Disclosed herein is a battery module including a battery cell stack configured to have a rectangular parallelepiped structure in which two or more plate-shaped battery cells, each of which has electrode terminals formed at one side thereof, are stacked and a breadth of one surface of the battery cell stack at which the electrode terminals of the battery cells are disposed is smaller than a width and a height of each major surface of the battery cell stack, a first module case bent to surround two relatively large major surfaces of the battery cell stack and one surface of the battery cell stack opposite to the surface of the battery cell stack at which the electrode terminals of the battery cells are disposed, among six surfaces of the battery cell stack and a surface, the first module case being made of a thermally conductive material that is capable of dissipating heat generated from the battery cells during charge and discharge of the battery cells, and a second module case bent to surround side surfaces of the battery cell stack adjacent to the two major surfaces of the battery cell stack and the surface of the battery cell stack at which the electrode terminals of the battery cells are disposed, the second module case being fastened to the first module case, the second module case being provided with through holes, through which the electrode terminals of the battery cells protrude outward, the second module case being made of an electrically insulative material.

Growing community of inventors

Daejeon, South Korea

Tae Hwan Roh