KR102093944B1 - Battery module, battery pack comprising the battery module and vehicle comprising the battery pack - Google Patents

Battery module, battery pack comprising the battery module and vehicle comprising the battery pack Download PDF

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Publication number
KR102093944B1
KR102093944B1 KR1020160016392A KR20160016392A KR102093944B1 KR 102093944 B1 KR102093944 B1 KR 102093944B1 KR 1020160016392 A KR1020160016392 A KR 1020160016392A KR 20160016392 A KR20160016392 A KR 20160016392A KR 102093944 B1 KR102093944 B1 KR 102093944B1
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KR
South Korea
Prior art keywords
battery
cell
flow prevention
assembly
battery module
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KR1020160016392A
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Korean (ko)
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KR20170094985A (en
Inventor
노태환
권유나
김성곤
김태혁
Original Assignee
주식회사 엘지화학
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Priority to KR1020160016392A priority Critical patent/KR102093944B1/en
Publication of KR20170094985A publication Critical patent/KR20170094985A/en
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Publication of KR102093944B1 publication Critical patent/KR102093944B1/en

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    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M2/1016Cabinets, cases, fixing devices, adapters, racks or battery packs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00Electric propulsion with power supplied within the vehicle
    • B60L50/50Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/66Arrangements of batteries
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00Secondary cells; Manufacture thereof
    • H01M10/04Construction or manufacture in general
    • H01M10/0481Compression means other than compression means for stacks of electrodes and separators
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2/00Constructional details or processes of manufacture of the non-active parts
    • H01M2/10Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M2/1016Cabinets, cases, fixing devices, adapters, racks or battery packs
    • H01M2/1072Cabinets, cases, fixing devices, adapters, racks or battery packs for starting, lighting or ignition batteries; Vehicle traction batteries; Stationary or load leading batteries
    • H01M2/1083Fixing on vehicles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00Batteries for particular applications
    • H01M2220/20Batteries in motive systems, e.g. vehicle, ship, plane
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries
    • Y02E60/12
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

The battery module according to an embodiment of the present invention, a battery cell assembly including a plurality of battery cells in which a pair of electrode leads protrude on one side and are stacked side by side and a pair of electrode leads of a plurality of battery cells are electrically It characterized in that it comprises an Ivy assembly that covers one side of the battery cell assembly to be connected, and has at least one flow prevention stopper for preventing flow when mounted on the battery cell assembly.

Description

Battery module, a battery pack including such a battery module, and a vehicle including such a battery pack TECHNICAL FIELD

The present invention relates to a battery module, a battery pack including such a battery module, and an automobile including such a battery pack.

A secondary battery having high applicability according to the product group and having electrical characteristics such as high energy density, etc. is not only portable devices but also electric vehicles (EV, Electric Vehicles) or hybrid vehicles (HEVs) driven by electric driving sources. It is used universally. These secondary batteries are attracting attention as a new energy source for eco-friendliness and energy efficiency enhancement, in that they do not generate any by-products due to the use of energy, as well as a primary advantage that can dramatically reduce the use of fossil fuels.

Currently widely used secondary batteries include lithium ion batteries, lithium polymer batteries, nickel cadmium batteries, nickel hydrogen batteries, and nickel zinc batteries. The operating voltage of the unit secondary battery cell, that is, the unit battery cell is about 2.5V to 4.2V. Therefore, when a higher output voltage is required, a battery pack may be configured by connecting a plurality of battery cells in series. In addition, a battery pack may be configured by connecting a plurality of battery cells in parallel according to the charge / discharge capacity required for the battery pack. Accordingly, the number of battery cells included in the battery pack may be variously set according to a required output voltage or charge / discharge capacity.

On the other hand, when a battery pack is configured by connecting a plurality of battery cells in series / parallel, a battery module composed of at least one battery cell is configured first, and other components are added using the at least one battery module to add a battery pack. How to configure it is common.

Conventional battery modules, generally, include a battery cell assembly including a plurality of battery cells that are mutually stacked, and sensing busbars electrically connecting a pair of electrode leads of the plurality of battery cells, and mounted on one side of the battery cell assembly It is constructed including an Ivy assembly. In addition, in the conventional battery module, after mounting one side of the battery cell assembly of the IBC assembly, a pair of electrode leads and sensing busbars of the battery cells are connected by laser welding or the like.

However, in the conventional battery module, when the flow of the IBC assembly mounted on one side of the battery cell assembly occurs before or during welding of the pair of electrode leads and the sensing busbars, the welding joint is defective or the assembly of the IBC assembly is generated. There is a problem that quality deterioration occurs. This leads to a problem that deteriorates the quality reliability or product safety of the battery module.

Therefore, it is required to find a way to prevent the flow of the Ivy assembly when mounting the Icy assembly on the battery cell assembly.

Accordingly, an object of the present invention is to provide a battery module, a battery pack including such a battery module, and a vehicle including such a battery pack, which can prevent the flow of the Icy assembly when the IC cell assembly is mounted on the battery cell assembly. .

In order to solve the above object, the present invention is a battery module, a battery cell assembly including a plurality of battery cells that are stacked side by side with a pair of electrode leads protruding from one side; And at least one flow prevention stopper that covers one side of the battery cell assembly so as to electrically connect the pair of electrode leads of the plurality of battery cells, and prevents flow when mounted on the battery cell assembly. It provides a battery module, characterized in that it comprises an; Ivy assembly.

The battery cell assembly includes the plurality of battery cells; A plurality of cell cartridges accommodating at least two battery cells among the plurality of battery cells and stacked side by side to be spaced apart a predetermined distance along a front-rear direction of the battery cell assembly; And a pair of fastening members which are fastened to both sides of the upper end of each cell cartridge along the front-rear direction of the battery cell assembly so that the plurality of cell cartridges can be coupled to each other. One flow prevention stopper may be mounted between both sides of the upper end of the plurality of cell cartridges so that the upper end of the at least one cell cartridge is elastically contacted or fitted.

The IBC assembly includes an IBC frame mounted between both sides of an upper end of the plurality of cell cartridges; A PCB unit provided in the IBC frame and disposed along the front-rear direction of the IBC frame; And a plurality of sensing bus bars which are provided in plural along the front-rear direction of the IBC frame with the PCB unit interposed therebetween and connected to the pair of electrode leads of the plurality of battery cells by welding or the like. , The at least one flow prevention stopper may be provided on at least one side edge of both side edges of the Ivy frame facing both sides of the upper end of the plurality of cell cartridges.

The flow prevention stopper is provided in plural, and the plurality of flow prevention stoppers protrude from at least one side edge of the both side edges of the Ivy frame, and when the Icy assembly is mounted, the at least one cell cartridge At least one first flow prevention stopper that is in elastic contact with the upper end; And at least one second flow prevention stopper that protrudes from at least one side edge of the both side edges of the Ivy frame and is fitted to an upper end of the at least one cell cartridge when the Ivy assembly is mounted. .

The upper end of the at least one cell cartridge in elastic contact with the at least one first flow prevention stopper may be provided with at least one hook protruding upwards of the at least one first flow prevention stopper.

The at least one first flow prevention stopper may include: an elastic pressing rib protruding from at least one side edge of both side edges of the Ivy frame to elastically press the upper end of the at least one cell cartridge; And an elastic slot provided on the elastic pressing rib and providing elastic force to the elastic pressing rib.

The at least one first flow prevention stopper may have a width greater than a width of an upper end portion of the cell cartridge in the front-rear direction of the Ivy frame.

The first flow prevention stoppers may be provided in plural, and the plurality of first flow prevention stoppers may be disposed at a predetermined distance from each other along the front-rear direction of the IBC frame.

The first flow prevention stoppers may be provided in plural, and the plurality of first flow prevention stoppers may be respectively provided on both side edges of the Ivy frame.

The at least one second flow prevention stopper protrudes to face at least one fastening member, and sandwiches an upper end portion of the at least one cell cartridge between the front portion and a rear portion of the upper portion of the at least one cell cartridge, respectively. A first constraining rib disposed adjacently; And a second restraining rib.

The first constraining rib and the second constraining rib may each be fitted to the upper end of the at least one cell cartridge when the IBC frame is mounted between both sides of the upper end of the plurality of cell cartridges. It can be slid from top to bottom along the front and rear of the upper end of the cell cartridge.

A sliding guide inclined surface inclined downward may be formed on the first restraining rib to guide the sliding on one side facing the front surface of the upper end of the at least one cell cartridge.

A sliding guide inclined surface inclined downward may be formed on the second restraining rib to guide the sliding on one side facing the rear surface of the upper end of the at least one cell cartridge.

The second flow prevention stoppers may be provided in plural, and the plurality of second flow prevention stoppers may be arranged to be spaced apart from each other along a front-rear direction of the IBC frame.

The second flow prevention stoppers may be provided in plural, and the plurality of second flow prevention stoppers may be respectively provided on both side edges of the Ivy frame.

And, the present invention, as a battery pack, at least one battery module according to the above-described embodiments; It provides a battery pack comprising a; and a pack case for packaging the at least one battery module.

In addition, the present invention provides an automobile, comprising at least one battery pack according to the above-described embodiment.

According to various embodiments as described above, a battery module capable of preventing the flow of the Icy assembly when the Icy assembly is mounted on the battery cell assembly, a battery pack including the battery module, and a vehicle including the battery pack are provided. can do.

According to these embodiments, when sensing electrodes of the IC bus assembly and electrode leads of the battery cell assembly are welded, sensing busbars and electrode leads can be welded in place, and welding joint defects can be prevented. It is possible to provide a battery module and a battery pack including the battery module and a vehicle including the battery pack.

In addition, since a fastener fastening process such as an additional bolt, nut, screw member, etc. for fixing the Ivy assembly when welding is not required through the flow prevention stopper according to the present embodiments, a battery capable of significantly improving manufacturing efficiency It is possible to provide a module, a battery pack including such a battery module, and an automobile including such a battery pack.

In addition, a battery module capable of stably fixing the IBC assembly to the battery cell assembly in the future through the flow prevention stopper according to the embodiments, a battery pack including such a battery module, and a vehicle including such a battery pack Can provide.

Accordingly, it is possible to provide a battery module, a battery pack including such a battery module, and a vehicle including such a battery pack, while ensuring quality reliability of the battery module and significantly improving product safety of the battery module.

The following drawings attached to this specification are intended to illustrate preferred embodiments of the present invention, and serve to further understand the technical idea of the present invention together with the detailed description of the invention described below, and thus the present invention is described in such drawings. It is not limited to interpretation.
1 is a perspective view of a battery module according to an embodiment of the present invention.
2 is a cross-sectional view of the battery module of FIG. 1.
3 is an exploded perspective view of the battery module of FIG. 1.
4 is a perspective view of the IBC assembly of the battery module of FIG. 3.
5 is a plan view of the Ivy assembly of FIG. 4.
6 is an enlarged view of part A of the battery module of FIG. 1.
7 and 8 are views for explaining the function of the first flow prevention stopper of the battery module of FIG. 6.
9 is a view for explaining the function of the second flow prevention stopper of the battery module of FIG. 6.
10 is a view for explaining a battery pack according to an embodiment of the present invention.

The present invention will become more apparent by describing the preferred embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the embodiments described herein are illustratively shown to help understanding of the present invention, and that the present invention can be implemented in various ways differently from the embodiments described herein. In addition, in order to help the understanding of the invention, the accompanying drawings are not drawn to scale, but the dimensions of some components may be exaggerated.

1 is a perspective view of a battery module according to an embodiment of the present invention, Figure 2 is a cross-sectional view of the battery module of Figure 1, Figure 3 is an exploded perspective view of the battery module of Figure 1, Figure 4 is a battery module of Figure 3 Is a perspective view of the IBC assembly, Figure 5 is a plan view of the IBC assembly of Figure 4, Figure 6 is an enlarged view of part A of the battery module of Figure 1;

1 to 6, the battery module 10 may include a battery cell assembly 100 and an IBC assembly 200.

The battery cell assembly 100 is an assembly of main components constituting the battery module 10, and may include a battery cell 110, a cell cartridge 130, an end plate 150, and a fastening member 170. have.

A plurality of battery cells 110 may be provided. The plurality of battery cells 110 are electrically connected to each other, and may be provided by being stacked on each other along the front-rear direction (X-axis direction) of the battery cell assembly 100.

Each of the plurality of battery cells 110 may be provided as a pouch-type secondary battery. Each battery cell 110 may include an electrode assembly, a battery case accommodating the electrode assembly, and an electrode lead 115 connected to the electrode assembly and protruding out of the battery case.

The electrode leads 115 may be provided in a pair. The pair of electrode leads 115 may protrude from the battery cell 110 to one side of the battery cell assembly 100, specifically, an upper side (+ Z-axis direction) of the battery cell assembly 100. have.

The cell cartridge 130 is configured to hold at least one battery cell 110 to prevent its flow, and to be stacked with each other to guide assembly of the plurality of battery cells 110.

The cell cartridge 130 may be provided in plural to guide the assembly of the plurality of battery cells 110, and may be stacked with each other along the front-rear direction (X-axis direction).

Specifically, each of the plurality of cell cartridges 130 may receive at least two battery cells 110 among the plurality of battery cells 110, and the front-rear direction of the battery cell assembly 100 may be Along the X-axis direction), the upper ends 132 may be stacked side by side to be spaced a predetermined distance.

Further, at least one cell cartridge 130 of the plurality of cell cartridges 130 may include a hook 140.

The hook 140 may be provided on at least one of the plurality of cell cartridges 130. Specifically, the hook 140 may be provided on the cell cartridge 130 facing the first flow prevention stopper 270 to be described later and in elastic contact with the first flow prevention stopper 270. The hook 140 may prevent flow along the vertical direction (Z-axis direction) of the IBC assembly 200 together with the first flow prevention stopper 270 described later.

The hook 140 may be provided to protrude along the left-right direction (Y-axis direction) of the battery module 10 from the side surface 136 of the upper end portion 132 of the cell cartridge 130. Accordingly, the hook 140 of the cell cartridge 130 facing the first flow prevention stopper 270 described below may protrude upwards of the first flow prevention stopper 270.

A plurality of hooks 140 may be provided. The plurality of hooks 140 may be uniformly provided on each of the plurality of cell cartridges 130. Accordingly, when the plurality of cell cartridges 130 are manufactured, the hook 140 is also formed at once, such as separating the cell cartridge 130 separately from the manufacturing line during the process to form the hook 140. Additional processes can be prevented from occurring.

The end plate 150 is to secure the rigidity of the plurality of cell cartridges 130 and to support the plurality of cell cartridges 130, provided as a pair, the plurality of cell cartridges ( The plurality of cell cartridges 130 may be covered in front (+ X-axis direction) and rear (-X-axis direction) of 130).

The fastening member 170 is for coupling the plurality of cell cartridges 130 and the pair of end plates 150, and may be provided with a long bolt such as a shoulder bolt.

The fastening member 170 may be provided in a pair. The pair of fastening members 170, the end plate 150 provided in the front (+ X-axis direction) of the plurality of cell cartridges 130, the upper end portion 132 of each cell cartridge 130 ) Is fastened to both ends of the plurality of cell cartridges 130 and the end plate 150 provided at the rear side (-X-axis direction), so that the plurality of cell cartridges 130 and the pair of end plates Fields 150 may be combined.

The IC assembly 200 electrically connects the pair of electrode leads 115 of the plurality of battery cells 110 and senses the voltage of the plurality of battery cells 110. One side of the battery cell assembly 100, specifically, may cover the upper side (+ Z-axis direction) of the battery cell assembly 100.

The IBC assembly 200 may include an IBC frame 210, a PBC unit 230, a plurality of sensing busbars 250, and flow prevention stoppers 270 and 280.

The IBC frame 210 forms an external appearance of the IBC assembly 200, and between both sides of the upper end 132 of the plurality of cell cartridges 130 and the upper end of the pair of end plates 150. Can be mounted on.

The PCB unit 230 includes various electric components of the IBC assembly 200 and the like, and may be provided along the front-rear direction (X-axis direction) of the IBC frame 210.

The PCB unit 230 may include a PCB board 232, a pair of terminal busbars 234 and 236, and a connector 238.

The PCB board 232 is provided in the center of the IBC frame 210, and may be arranged to be long along the front-rear direction (X-axis direction) of the IBC frame 210.

The pair of terminal bus bars 234 and 236 protrude from the upper side of the PCB board 232 and may be electrically connected to the PCB board 232. The pair of terminal bus bars 234 and 236 may be electrically connected to an external device such as an external power source.

The connector 238 is provided on an upper side of the PCB board 232 and may be disposed between the pair of terminals 234 and 236. The connector 238 may be electrically connected to a sensing connector for sensing the voltage of the battery cell assembly 100.

The plurality of sensing bus bars 250 may be provided to be spaced apart from each other by a predetermined distance along the front-rear direction (X-axis direction) of the IBC frame 210 with the PCB unit 230 interposed therebetween.

The plurality of sensing bus bars 250 may electrically connect the pair of electrode leads 115 of the plurality of battery cells 110. To this end, the plurality of sensing bus bars 250 and the pair of electrode leads 115 of the plurality of battery cells 110 when the IBC assembly 200 is mounted on the battery cell assembly 100 It can be connected by welding or the like. Here, the welding may be laser welding.

The flow prevention stopper (270, 280) is to prevent the flow of the IBC assembly 200 when the IBC assembly 200 is mounted on the battery cell assembly 100, the IBC frame 210 It may be provided.

The flow prevention stopper (270, 280), when mounting the IBC assembly 200 between both sides of the upper end of the plurality of cell cartridges 130 and the pair of end plates 150, the To prevent the flow of the IBC assembly 200 may be elastically contacted or fitted to both sides of the upper end 132 of the at least one cell cartridge 130.

In addition, the flow prevention stoppers 270 and 280 may be provided to be elastically contacted and fitted to both sides of the upper end 132 of the at least one cell cartridge 130.

The flow prevention stopper (270, 280), the plurality of cell cartridges 130, the upper end 132 of both sides and the pair of end plates 150 of the upper end facing the both sides of the Ivy frame 210 ) May be provided on at least one side edge 215 of both side edge edges 215.

In addition, the flow prevention stoppers 270 and 280 may be provided in plural to more reliably prevent the flow of the Ivy assembly 200. The plurality of flow prevention stoppers 270 and 280 may include a first flow prevention stopper 270 and a second flow prevention stopper 280.

The first flow prevention stopper 270 protrudes from at least one side edge 215 of the both side edges 215 of the Ivy frame 210, and at least one of the Ivy assembly 200 is mounted. The upper end portion 132 of the cell cartridge 130 may be in elastic contact.

Here, the first flow prevention stopper 270 in the front-rear direction (X-axis) of the upper end 132 of the cell cartridge 130 in the front-rear direction (X-axis direction) of the Ivy frame 210 for smooth elastic contact Direction).

The first flow prevention stopper 270 may be provided in plural to more reliably prevent the flow of the Ivy assembly 200.

The plurality of first flow prevention stoppers 270 may be arranged to be spaced apart from each other along a front-rear direction (X-axis direction) of the Ivy frame 210. The plurality of first flow prevention stoppers 270 may be provided on the both side edges 215 of the IBC frame 210, respectively.

The plurality of first flow prevention stoppers 270 may include an elastic pressing rib 271 and an elastic slot 276, respectively.

The elastic pressure ribs 271 are provided in the left and right directions of the battery module 10 from the side edge 215 of the IBC frame 210 so as to elastically press the upper end portion 132 of the cell cartridge 130 facing each other. Y-axis direction) may be formed to protrude.

The elastic slot 276 is provided on the elastic pressing rib 271, it is possible to provide an elastic force to the elastic pressing rib 271. The elastic slot 276 is provided along the longitudinal direction (X-axis direction) of the elastic pressing rib 271, it may be formed to have a predetermined depth.

The second flow prevention stopper 280 protrudes from at least one side edge 215 of the both side edges 215 of the Ivy frame 210, and at least one of the Ivy assembly 200 is mounted. It may be fitted to the upper end 132 of the cell cartridge 130.

The second flow prevention stopper 280 may be provided in plural to more reliably prevent the flow of the Ivy assembly 200.

The plurality of second flow prevention stoppers 280 may be arranged to be spaced apart from each other along a front-rear direction (X-axis direction) of the Ivy frame 210. The plurality of second flow prevention stoppers 280 may be provided on the both side edges 215 of the IBC frame 210, and the both side edges 215 of the IBC frame 210, respectively. Each may be disposed between the plurality of first flow prevention stoppers 270.

The plurality of second flow prevention stoppers 280 may include a first constraining rib 281 and a second constraining rib 286, respectively.

The first restraining rib 281 protrudes along the left-right direction (Y-axis direction) of the battery module 10 so as to face the fastening member 170, and the front surface of the upper end 132 of the cell cartridge 130 (137) may be disposed adjacent to a portion.

The first restraining rib 281, the Ivy frame 210 is mounted between both sides of the upper end 132 of the plurality of cell cartridges 130 and the upper end of the pair of end plates 150. When it is, it slides from the upper side (+ Z-axis direction) to the lower side (-Z-axis direction) along the front surface 138 of the upper end portion 132 of the cell cartridge 130, and the second restraining rib 286 described later. Together, it can be fitted to the cell cartridge 130.

Here, a sliding guide inclined surface 283 may be formed on the first restraining rib 281.

The sliding guide inclined surface 283 is provided on one side facing the front surface 137 of the upper end portion 132 of the cell cartridge 130, and may be inclined downward (-Z-axis direction).

The sliding guide inclined surface 283 prevents interference between the first restraining rib 281 and the front surface 137 of the upper end 132 of the cell cartridge 130 when the first restraining rib 281 is sliding. While it can guide the smooth sliding of the first restraining rib (281).

The second restraining rib 286 protrudes along the left-right direction (Y-axis direction) of the battery module 10 so as to face the fastening member 170, and the rear surface of the upper end 132 of the cell cartridge 130 (138) may be disposed adjacent to a portion.

Accordingly, the second restraining rib 286 has the first restraining rib at the rear side (-X-axis direction) of the first restraining rib 281 with the upper end 132 of the cell cartridge 130 interposed therebetween. 281) and a predetermined distance.

The second restraining rib 286 is mounted between the both ends of the upper end 132 of the plurality of cell cartridges 130 and the upper end of the pair of end plates 150. When it is, while sliding from the upper side (+ Z-axis direction) to the lower side (-Z-axis direction) along the rear surface 139 of the upper end portion 132 of the cell cartridge 130, together with the first restraining rib 281, It may be fitted to the cell cartridge 130.

Here, a sliding guide inclined surface 288 may be formed on the second constraining rib 286 like the first constraining rib 281.

The sliding guide inclined surface 288 is provided on one side facing the rear surface 138 of the upper end portion 132 of the cell cartridge 130, and may be inclined downward (-Z axis direction).

The sliding guide inclined surface 288 prevents interference between the second restraining rib 286 and the rear surface 138 of the upper end 132 of the cell cartridge 130 when sliding the second restraining rib 286. While it can guide the smooth sliding of the second restraining rib (286).

Hereinafter, in the battery module 10 according to this embodiment, the flow prevention mechanism of the IBC assembly 200 will be described in more detail when the IBC assembly 200 is mounted on the battery cell assembly 100. see.

7 and 8 are views for explaining the function of the first flow prevention stopper of the battery module of FIG. 6, and FIG. 9 is a view for explaining the function of the second flow prevention stopper of the battery module of FIG. 6.

Referring to FIGS. 7 to 9, when the IBC assembly 200 is mounted on the battery cell assembly 100 of the battery module 10, the IBC assembly 200 is a part of the battery cell assembly 100. It may be mounted between both sides of the upper end 132 of the cell cartridges 130 to cover the upper side (+ Z-axis direction).

At this time, the IBC frame 210 of the IBC assembly 200 is moved from the upper side (+ Z axis direction) to the lower side (-Z axis direction) of the battery cell assembly 100 while the battery cell assembly 100 ) Can be seated on the upper side (+ Z-axis direction).

Here, the first flow prevention stopper 270, while being elastically deformed when the Ivy frame 210 moves, slides from the upper side (+ Z axis direction) to the lower side (-Z axis direction) of the hook 140. You can.

Thereafter, the first flow prevention stopper 270 may be restored to the original state from the lower side of the hook 140 (-Z-axis direction) and disposed on the lower side of the hook 140 (-Z-axis direction), The cell cartridge 130 may be in elastic contact with the side 136 of the upper end 132. Through this elastic contact, the first flow prevention stopper 270 is between the upper ends 132 of the cell cartridges 130, the eye according to the left-right direction (Y-axis direction) of the battery module 10 The flow S1 of the fertilizing assembly 200 may be limited.

In addition, the first flow prevention stopper 270 is the IBC assembly (in the vertical direction (Z axis direction) of the battery module 10 through the hook 140 disposed on the upper side (+ Z axis direction) ( The flow S2 of 200) can also be limited.

Therefore, the first flow prevention stopper 270 is a flow (S1) of the IBC assembly 200 according to the left-right direction (Y-axis direction) of the battery module 10 and the vertical direction of the battery module 10 It is possible to prevent the flow S2 of the Ivy assembly 200 along (Z-axis direction).

And, the second flow prevention stopper 280 is disposed adjacent to the front 137 and the rear 138 of the cell cartridge 130 between the upper end 132 of the cell cartridge 130, the battery module In the front-rear direction (X-axis direction) of (10), the flow (S3) of the Ivy assembly 200 can be prevented.

The second flow prevention stopper 280 and the first flow prevention stopper 270 are mounted in the battery cell assembly 100 in the front-rear direction (X axis) of the battery module 10 when the IBC assembly 200 is mounted. Direction), left-right direction (Y-axis direction) and up-down direction (Z-axis direction), that is, the flow (S1, S2, S3) of the Ivy assembly 200 that can occur in both the three-axis direction is prevented can do.

The electrode leads 115 of the battery cell assembly 100 may be welded to the plurality of sensing busbars 250 of the IBC assembly 200 by laser welding or the like.

In this welding process, the IBC assembly 200 can be stably fixed without flow on the upper side (+ Z-axis direction) of the battery cell assembly 100 in all three-axis directions.

Therefore, the battery module 10 according to the present embodiment can weld the sensing busbars 250 and the electrode leads 115 in place at the time of welding, and prevent welding defects and the like.

In addition, in the battery module 10 according to the present embodiment, an additional bolt, nut, screw member fastener fastening process for fixing the IBC assembly 200 during welding is not required, and the battery module The manufacturing efficiency of (10) can be remarkably improved.

In addition, the battery module 10 according to the present embodiment can stably fix the IBC assembly 200 to the battery cell assembly 100 later through the flow prevention stoppers 270 and 280.

As such, the battery module 10 according to the present embodiment can secure product quality reliability of the battery module 10 and improve product safety of the battery module 10.

10 is a view for explaining a battery pack according to an embodiment of the present invention.

Referring to FIG. 10, the battery pack 1 may include the at least one battery module 10 and a pack case 50 for packaging the at least one battery module 10.

The battery pack 1 is a fuel source of a vehicle, and may be provided in at least one or more vehicles. For example, the battery pack 1 may be provided in an automobile in an electric vehicle, a hybrid vehicle, and other ways in which other battery packs 1 can be used as a fuel source.

In addition, of course, the battery pack 1 may be provided in other devices, apparatus, and facilities, such as an energy storage system using a secondary battery, in addition to the vehicle.

As described above, the device, mechanism, and equipment provided with the battery pack 1 and the vehicle according to the present embodiment includes the battery module 10 described above, and the battery module described above (10) It is possible to implement a device, apparatus, and equipment such as the battery pack 1 having all the advantages due to the vehicle and the battery pack 1 having the advantages.

In the above, preferred embodiments of the present invention have been illustrated and described, but the present invention is not limited to the specific embodiments described above, and it is usually in the technical field to which the present invention belongs without departing from the gist of the present invention claimed in the claims. Of course, various modifications can be made by those having knowledge of, and these modifications should not be individually understood from the technical idea or prospect of the present invention.

1: Battery pack 10: Battery module
50: pack case 100: battery cell assembly
110: battery cell 115: electrode lead
130: cell cartridge 140: hook
150: end plate 170: fastening member
200: Ivy assembly 210: Ivy frame
230: PCB unit 232: PCB board
234, 236: Terminal busbar 238: Connector
250: sensing bus bar 270: first flow prevention stopper
271: elastic pressure rib 276: elastic slot
280: second flow prevention stopper 281: first restraining rib
283: sliding guide slope 286: second restraint rib
288: sliding guide slope

Claims (17)

  1. A battery cell assembly including a plurality of battery cells in which a pair of electrode leads protrude on one side and are stacked side by side with each other; And
    An eye covering one side of the battery cell assembly so as to electrically connect the pair of electrode leads of the plurality of battery cells, and having at least one flow prevention stopper for preventing flow when mounted on the battery cell assembly Fertilization assembly; and
    The battery cell assembly,
    The plurality of battery cells;
    A plurality of cell cartridges accommodating at least two battery cells among the plurality of battery cells and stacked side by side to be spaced apart a predetermined distance along a front-rear direction of the battery cell assembly; And
    It includes; a pair of fastening members that are fastened to both sides of the upper end of each cell cartridge along the front-rear direction of the battery cell assembly so as to combine the plurality of cell cartridges; includes,
    The Ivy assembly,
    The at least one flow prevention stopper is mounted between both sides of the upper end of the plurality of cell cartridges so as to be elastically contacted or fitted to the upper end of the at least one cell cartridge,
    The Ivy assembly,
    An IBC frame mounted between both sides of an upper end of the plurality of cell cartridges;
    A PCB unit provided in the IBC frame and disposed along the front-rear direction of the IBC frame; And
    It includes; a plurality of sensing bus bars are provided in a plurality along the front-rear direction of the IBC frame with the PCB unit interposed therebetween, and connected to the pair of electrode leads of the plurality of battery cells by welding or the like;
    The at least one flow prevention stopper,
    It is provided on at least one side edge of both side edges of the IBC frame facing both sides of the upper end of the plurality of cell cartridges,
    The flow prevention stopper,
    It is provided in plural,
    The plurality of flow prevention stopper,
    At least one first flow prevention stopper protruding from at least one side edge of the both side edges of the Ivy frame, and elastically contacting an upper end of the at least one cell cartridge when the Ivy assembly is mounted; And
    It includes; at least one second flow prevention stopper that protrudes from at least one side edge of the both side edges of the Ivy frame, and is fitted to an upper end of the at least one cell cartridge when the Ivy assembly is mounted.
    The at least one first flow prevention stopper,
    An elastic pressing rib protruding from at least one side edge of both side edges of the Ivy frame to elastically press the upper end of the at least one cell cartridge; And
    It is provided on the elastic pressing rib, the elastic slot providing elastic force to the elastic pressing rib; includes,
    The elastic slot,
    A battery module, which is provided along the longitudinal direction of the elastic pressing rib and is formed to have a predetermined depth.
  2. delete
  3. delete
  4. delete
  5. According to claim 1,
    On the upper end of the at least one cell cartridge in elastic contact with the at least one first flow prevention stopper,
    A battery module comprising at least one hook protruding above the at least one first flow prevention stopper.
  6. delete
  7. According to claim 1,
    The at least one first flow prevention stopper,
    The battery module, characterized in that having a width greater than the width of the upper end of the cell cartridge in the front-rear direction of the Ivy frame.
  8. According to claim 1,
    The first flow prevention stopper,
    It is provided in plural,
    The plurality of first flow prevention stopper,
    The battery module, characterized in that arranged at a predetermined distance from each other along the front-rear direction of the Ivy frame.
  9. According to claim 1,
    The first flow prevention stopper,
    It is provided in plural,
    The plurality of first flow prevention stoppers,
    The battery module, characterized in that provided on each of the rims of both sides of the frame.
  10. According to claim 1,
    The at least one second flow prevention stopper,
    A first restraining rib protruding facing at least one fastening member, and disposed adjacent to a front portion and a rear portion of the upper end portion of the at least one cell cartridge with an upper end portion of the at least one cell cartridge interposed therebetween; And a second restraining rib.
  11. The method of claim 10,
    The first restraining rib and the second restraining rib,
    When the IBC frame is mounted between both sides of the upper end of the plurality of cell cartridges, the upper and lower sides are respectively along the front and rear surfaces of the upper end of the at least one cell cartridge so that they can be fitted to the upper ends of the at least one cell cartridge. Battery module characterized in that the sliding.
  12. The method of claim 11,
    The first restraining rib,
    A battery module, characterized in that a sliding guide inclined surface is inclined downward to guide the sliding on one side facing the front surface of the upper end of the at least one cell cartridge.
  13. The method of claim 11,
    The second restraining rib,
    A battery module, characterized in that a sliding guide inclined surface inclined downward to guide the sliding on one side facing the rear surface of the upper end of the at least one cell cartridge.
  14. According to claim 1,
    The second flow prevention stopper,
    It is provided in plural,
    The plurality of second flow prevention stoppers,
    The battery module, characterized in that arranged at a predetermined distance from each other along the front-rear direction of the Ivy frame.
  15. According to claim 1,
    The second flow prevention stopper,
    It is provided in plural,
    The plurality of second flow prevention stoppers,
    The battery module, characterized in that provided on each of the rims of both sides of the frame.
  16. At least one battery module according to claim 1; And
    A battery pack comprising a; a pack case for packaging the at least one battery module.
  17. A vehicle comprising at least one battery pack according to claim 16.
KR1020160016392A 2016-02-12 2016-02-12 Battery module, battery pack comprising the battery module and vehicle comprising the battery pack KR102093944B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160016392A KR102093944B1 (en) 2016-02-12 2016-02-12 Battery module, battery pack comprising the battery module and vehicle comprising the battery pack

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160016392A KR102093944B1 (en) 2016-02-12 2016-02-12 Battery module, battery pack comprising the battery module and vehicle comprising the battery pack

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KR102093944B1 true KR102093944B1 (en) 2020-03-26

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KR20200080075A (en) * 2018-12-26 2020-07-06 주식회사 엘지화학 A battery module having guides for restricting the movement of the bus bar frame, and A battery pack and A vehicle comprising the same

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KR20080038663A (en) * 2006-10-30 2008-05-07 삼성에스디아이 주식회사 Secondary battery
KR101772115B1 (en) * 2013-09-03 2017-08-28 삼성에스디아이 주식회사 Battery pack having movement prevention portion
KR101642325B1 (en) * 2013-10-17 2016-07-25 주식회사 엘지화학 Battery module and battery pack including the same
KR101743696B1 (en) * 2013-11-29 2017-06-05 주식회사 엘지화학 Battery module and battery pack including the same

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