Lg Chem, Ltd

Chae Ho Chung

Ye Hoon Im

Dal Mo Kang

Sangyoon Jeong

BumHyun Lee

Jongmoon Yoon

Yongseok Choi

WonChan Park

Jin Kyu Lee

Jong Moon Yoon

DalMo Kang

JiYoung Choi

Minjung Kim

Jae Hun Yang

Yongshik Shin

YoungHo Lee

JaeHun Yang

YeonSeok Choo

Yong Seok Choi

Bum Hyun Lee

Kyoung Ho Kim

Ji Young Choi

Ye-Hoon Im

Won Chan Park

JunSeok Choi

Jiyoung Choi

Dal Moh Kang

Youngho Lee

Disclosed herein is a bus bar connected or fastened to a terminal part of a battery pack and fixedly mounted to a battery pack case, the bus bar including a power input part located at one end of the bus bar such that the power input part is connected or fastened to an output terminal part of the battery pack, a power output part located at the other end of the bus bar such that the power output part is connected or fastened to an input terminal part of the battery pack, a plate-shaped main body connected between the power input part and the power output part, the plate-shaped main body including a vapor chamber, and a fastening part formed at the power input part to fix the bus bar to the battery pack case.

Bus bar with novel structure

Disclosed is a battery pack having a structure in which a plurality of unit cells constitutes a battery module, two or more of the battery modules are vertically arranged from a coolant introduction direction of a coolant inlet port to constitute a pair of battery module groups, a coolant introduction part extending from the coolant inlet port to each battery module group is provided at a middle of a pack case wherein the coolant introduction part is located between respective battery module groups, coolant discharge parts extending from respective battery module groups to coolant outlet ports are provided at an upper and lower part of the pack, and a coolant flow channel defined between the coolant introduction part and the coolant discharge parts is configured such that a coolant, introduced through the coolant introduction part, passes by each unit cell, and is discharged through the respective coolant discharge parts.

Battery pack of novel air cooling structure

Disclosed herein is a battery pack including a plurality of battery modules, each having a battery cell or a unit module (unit cell) that can be charged and discharged, mounted in a pack case, wherein two or more unit cells constitute one battery module, two or more battery modules are arranged in a length direction of the battery pack to constitute one battery module group, two battery module groups are arranged in a width direction of the battery pack in a state in which the battery module groups are spaced apart from each other such that a coolant discharge part is defined between the battery module groups, a coolant inlet port is independently formed at a region of the pack case corresponding to each of the battery modules located at a position opposite to the coolant discharge part, and a coolant outlet port is formed at a front or a rear of the pack case in the length direction of the battery pack such that coolant introduced through the respective coolant inlet ports cools the unit cells of the respective battery modules while passing through the respective battery modules and is then discharged out of the pack case.

A battery pack including battery cells or unit modules (unit cells), configured to have a structure including a battery module group including one or more battery modules each having the unit cells mounted in a pack case in a state in which the unit cells are uprightly arranged in a width direction of the pack such that the unit cells are spaced apart by a spacing distance for coolant flow, a coolant introduction part continuously defined in a space between a bottom of the pack case and the battery module group, a coolant discharge part defined between a top of the pack case and the battery module group, an electronic member located at one side of the module group, the electronic member being mounted in an inner space defined by the coolant discharge part, and a coolant flow channel defined between the coolant introduction part and the coolant discharge part.

Battery pack having novel cooling structure

Discussed herein is a battery pack configured to have a structure in which a battery pack case is provided at the upper part and the lower part thereof with a coolant inlet port and a coolant outlet port, respectively, the battery pack case is provided with a coolant introduction part and a coolant discharge part, the coolant introduction part includes (a) a parallel introduction part adjacent to the coolant inlet port, the parallel introduction part extending in parallel to a top of the unit cell stack and (b) an inclined introduction part connected to the parallel introduction part, the inclined introduction part extending from the coolant inlet port to an end of the battery pack case opposite to the coolant inlet port such that a distance between the inclined introduction part and the top of the unit cell stack is gradually decreased.

Battery pack of excellent cooling efficiency

Disclosed is a battery pack having a plurality of battery cells or unit modules ('unit cells'), which can be charged and discharged, mounted in a pack case, wherein the unit cells are stacked in a direction (a Z direction) in which the unit cells are sequentially stacked in parallel to a ground in a state in which a spacing distance for coolant flow is provided between the respective unit cells to constitute a battery module, two or more battery modules are arranged in a horizontal direction (an X direction) on the plane with respect to a coolant introduction direction in which a coolant is introduced through a coolant inlet port in a state in which flow of the coolant between the battery modules is restrained to constitute a battery module group.

Disclosed is a battery pack including battery cells or unit modules (unit cells), wherein the battery pack is configured to have a structure in which the unit cells are uprightly arranged in a width direction (a horizontal direction) of the battery pack in a state in which a spacing distance for coolant flow is provided between the respective unit cells to constitute a battery module, a plurality of battery modules is arranged to constitute a battery module group, battery modules groups are vertically arranged from a coolant introduction direction of a coolant inlet port in a height direction (a vertical direction) of the battery pack to have a two or more layer structure or laterally arranged from the coolant introduction direction of the coolant inlet port in a length direction (a horizontal direction) of the battery pack to have a two or more row structure.

Battery pack providing improved distribution uniformity in coolant

Disclosed is a battery pack including a plurality of battery cells or unit modules, wherein the battery pack is provided at an upper and lower part thereof with a coolant inlet port and a coolant outlet port, through which a coolant to cool the battery cells or the unit modules, i.e. unit cells, flows from one side to the other side of the battery module in a direction perpendicular to the stacked direction of the unit cells, the battery pack case is further provided with a flow space ('coolant introduction part') extending from the coolant inlet port to the battery module and another flow space ('coolant discharge part') extending from the battery module to the coolant outlet port, and the coolant outlet port is bent in a lateral direction at an angle of at least 30 degrees to a flow direction of the coolant introduced through the coolant inlet port.

Disclosed herein is a battery pack case in which a battery module having a plurality of stacked battery cells or unit modules ('unit cells') is mounted, wherein the battery pack case is provided at the upper part and the lower part thereof with a coolant inlet port and a coolant outlet port, respectively, which are directed in opposite directions such that a coolant to cool the unit cells can flow from one side to the other side of the battery module in a direction perpendicular to a cell stacking direction, the battery pack case is further provided with a flow space ('coolant introduction part') extending from the coolant inlet port to the battery module and another flow space (&#x2018;coolant discharge part&#x2019;) extending from the battery module to the coolant outlet port, and the flow channel width of the coolant introduction part and/or the flow channel width of the coolant discharge part is greater than that of each of the unit cells, thereby achieving uniform distribution of the coolant.

Battery pack case having novel structure

A middle- or large-sized battery pack having two or more hexahedral battery modules, each including a plurality of chargeable and dischargeable plate-shaped unit cells, mounted in a pack case, wherein the battery pack removes heat generated during the charge and discharge of the unit cells using an air cooling method, the unit cells of each of the battery modules are vertically stacked such that the number of the unit cells corresponds to a height of a battery pack installation space defined in a vehicle while neighboring unit cells are spaced apart from each other such that a coolant channel is defined between the respective unit cells, the pack case is formed in a shape corresponding to the battery pack installation space in the vehicle, and a coolant for removing heat from the unit cells is introduced through at least one side of the pack case.

Middle or large-sized battery pack of novel air cooling structure

Disclosed herein is a battery pack having a plurality of battery cells or unit modules ('unit cells') electrically connected to each other, wherein the unit cells are arranged in a width direction (traverse direction) of the battery pack in an upright fashion in a state in which the unit cells are spaced apart from each other to form coolant flow channels, thereby constituting a battery module layer, and two or more battery module layers are mounted in a pack case such that the battery module layers are stacked in a height direction (vertical direction) of the battery pack, and wherein the battery pack includes a coolant introduction part, through which a coolant is introduced into the two or more battery module layers to simultaneously cool some or all of the unit cells in the two or more battery module layers, and a coolant discharge part, through which the coolant, having passed the unit cells, is discharged.

Battery pack providing improved distribution uniformity of coolant

Disclosed is a battery pack including battery modules arranged in two or more rows, each of the battery modules including a plurality of battery cells or unit modules, each of which has two or more battery cells mounted therein, stacked in an upright or upside-down fashion, wherein the battery modules are individually mounted in pack cases, the pack cases are provided at upper parts and lower parts thereof with coolant inlet ports and coolant outlet ports such that a coolant to cool the battery cells flows to one side to the other side of the battery modules in a direction perpendicular to the stacked direction of the battery cells or the unit modules, the pack cases are further provided with flow spaces ('coolant introduction parts').

Disclosed herein is a battery pack having a plurality of battery cells or unit modules ('unit cells'), which can be charged and discharged, mounted in a pack case.

Disclosed herein is a middle- or large-sized battery pack having two or more hexahedral battery modules, each including a plurality of chargeable and dischargeable plate-shaped battery cells or unit modules (unit cells), mounted in a pack case, wherein the battery pack is used as a power source for driving a vehicle, has a battery capacity of 5 KWh or more, and removes heat generated during the charge and discharge of the unit cells using an air cooling method, the unit cells of each of the battery modules are vertically stacked such that the number of the unit cells corresponds to a height of a battery pack installation space defined in the vehicle while neighboring unit cells are spaced apart from each other such that a coolant channel is defined between the respective unit cells, the pack case is formed in a shape corresponding to the battery pack installation space in the vehicle, the hexahedral battery modules being arranged in an inner space of the pack case, and a coolant for removing heat from the unit cells is introduced through at least one side of the pack case, passes through the battery modules horizontally, and is discharged through the other side of the pack case.

Disclosed is a battery pack including a battery module array, wherein a reinforcement member is coupled to side walls of end plates or sides of main members at an outer side of an outermost battery module of the battery module array to minimize deformation of the battery pack when the battery pack is vibrated in the front and rear direction.

Growing community of inventors

Daejeon, South Korea

Chae Ho Chung