WO2023224283A1 - 배터리 팩 및 이를 포함하는 자동차 - Google Patents
배터리 팩 및 이를 포함하는 자동차 Download PDFInfo
- Publication number
- WO2023224283A1 WO2023224283A1 PCT/KR2023/005624 KR2023005624W WO2023224283A1 WO 2023224283 A1 WO2023224283 A1 WO 2023224283A1 KR 2023005624 W KR2023005624 W KR 2023005624W WO 2023224283 A1 WO2023224283 A1 WO 2023224283A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cell assembly
- block
- bus bar
- back direction
- cell
- Prior art date
Links
- 238000003825 pressing Methods 0.000 claims description 22
- 230000017525 heat dissipation Effects 0.000 claims description 7
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract description 4
- 238000000429 assembly Methods 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 17
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 6
- 229910052744 lithium Inorganic materials 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 239000000615 nonconductor Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000002730 additional effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/514—Methods for interconnecting adjacent batteries or cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery pack and a vehicle including the same, and more specifically, to a battery pack that has a simpler and more stable structure than existing battery packs and a vehicle including the same.
- lithium secondary batteries are in the spotlight for their advantages of free charging and discharging, very low self-discharge rate, and high energy density as they have almost no memory effect compared to nickel-based secondary batteries.
- lithium secondary batteries mainly use lithium-based oxide and carbon material as positive and negative electrode active materials, respectively.
- the lithium secondary battery includes a positive and negative electrode plate coated with the positive and negative electrode active materials, an electrode assembly in which the positive and negative electrode plates are disposed with a separator in between, and an exterior material that seals and stores the electrode assembly with an electrolyte.
- lithium secondary batteries can be classified into can-type secondary batteries in which the electrode assembly is built into a metal can and pouch-type secondary batteries in which the electrode assembly is built in a pouch of an aluminum laminate sheet, depending on the shape of the battery case.
- can-type secondary batteries can be further classified into cylindrical batteries and prismatic batteries depending on the shape of the metal can.
- the pouch of the pouch-type secondary battery can be broadly divided into a lower sheet and an upper sheet covering it.
- the pouch accommodates an electrode assembly formed by laminating and winding a positive electrode, a negative electrode, and a separator. Then, after storing the electrode assembly, the edges of the upper and lower sheets are sealed by heat fusion or the like. Additionally, the electrode tab drawn out from each electrode is coupled to an electrode lead, and an insulating film may be added to the electrode lead in contact with the sealing portion.
- the pouch-type secondary battery can have the flexibility to be configured in various forms.
- the pouch-type secondary battery has the advantage of being able to implement a secondary battery of the same capacity with a smaller volume and mass.
- the electrode assembly is surrounded by a very thin pouch, so the overall shape of the battery cell can be bent even by a slight external force or self-weight.
- the electrode leads of conventional pouch-type secondary batteries are flexible and can be easily bent. Therefore, it is not easy to directly install a conventional pouch-type secondary battery into a battery pack without a module case structure that maintains the external shape of the battery cell.
- the purpose of the present invention is to provide a battery pack structure in which a cell assembly including a plurality of battery cells can be mounted on the battery pack without a module-type frame.
- a battery pack according to an aspect of the present invention for achieving the above object includes a cell assembly including a plurality of battery cells with electrode leads, a pack housing accommodating the cell assembly therein, and the cell assembly. It includes a bus bar assembly disposed on both sides, coupled to the pack housing, and connected to electrode leads of the plurality of battery cells.
- the plurality of battery cells are stacked in the front-to-back direction and can be coupled to each other through an adhesive member provided between each battery cell.
- the battery pack may further include a pair of cell supports coupled to the pack housing and configured to support both front and rear sides of the cell assembly.
- the pack housing is provided on a floor frame and the floor frame, is disposed on both sides of the cell assembly, and includes a pair of guide rails to which the bus bar assembly is coupled, and the cell support portion is connected to the cell. It is disposed between the pair of guide rails in the left and right directions of the assembly, so that both sides can be coupled to the pair of guide rails.
- the pair of guide rails may be formed to extend along the front-back direction of the cell assembly on the floor frame.
- the bus bar assembly is provided on a plurality of bus bar blocks coupled to the guide rail and at least a portion of the plurality of bus bar blocks, and electrode leads of the plurality of battery cells in the front-back direction of the cell assembly. and a plurality of bus bars connected to each other, wherein electrode leads of the plurality of battery cells are disposed between different bus bar blocks in the front-back direction of the cell assembly, and the plurality of bus bar blocks are connected to the plurality of bus bars and the It may be configured to interconnect electrode leads of a plurality of battery cells by pressing them in the front-back direction of the cell assembly.
- the plurality of bus bars may be arranged along the front-back direction of the cell assembly, and the plurality of bus bar blocks may be provided on the guide rail along the front-back direction of the cell assembly.
- the bus bar block includes a first block, a second block disposed opposite to the front-to-back direction of the first block and the cell assembly, and the first block and the second block to the front-to-rear direction of the cell assembly. It includes a pressing member disposed between two blocks and driven in an upward and downward direction to press the first block and the second block with respect to the front-back direction of the cell assembly, wherein the first block, the second block, and the The lower end of the pressing member may be located inside the guide rail.
- the pressing member includes a vertical movable portion configured to move in the vertical direction and a tapered portion coupled to the outer peripheral surface of the vertical movable portion and formed to have a tapered shape with respect to the downward direction, and the tapered portion is vertical. It may be configured to move in the vertical direction along with the eastern part to press the first block and the second block against the front-back direction of the cell assembly.
- the pressing member is located inside the guide rail and connected to the vertical moving part, and is a bus bar disposed between the lower end of the first block and the lower end of the second block in the front-back direction of the cell assembly. It may further include a block fixing part, and the bus bar block fixing part may be coupled to the vertical moving part to fix the bus bar block to the guide rail.
- the bus bar surrounds a portion of the bus bar block, and is pressed against the front-back direction of the cell assembly as the first block and the second block move. It may be configured to be connected to the electrode lead. .
- the bus bar is formed by extending downwardly from a seating portion disposed on an upper portion of the bus bar block and both ends of the seating portion in the front-to-back direction, so that the bus bar extends downward in the front-back direction of the first block and the second block.
- It includes a lead connection part disposed adjacent to the side, wherein the lead connection part is pressed on both sides of the cell assembly in the front-back direction according to the movement of the first block and the second block according to the pressure of the tapered portion to connect the plurality of battery cells. It may be configured to be connected to an electrode lead.
- the battery pack may further include a pair of side plates that connect the pair of cell supports in the front-back direction of the cell assembly and are disposed to face each other in the left-right direction of the cell assembly. there is.
- the battery pack may further include a heat dissipation member disposed between the cell assembly and the floor frame in the vertical direction.
- a vehicle according to another aspect of the present invention includes at least one battery pack according to an aspect of the present invention as described above.
- the present invention it is possible to stably support the cell assembly through a bus bar assembly and a cell support unit coupled to the pack housing without a module-type frame for accommodating the cell assembly, and also to simplify parts in manufacturing a battery pack. can do.
- connection between the electrode lead and the bus bar and the connection of the plurality of battery cells are made by pressing the bus bar block, a separate welding process is not required and the output of the cell assembly can be easily changed as needed in the future. .
- FIG. 1 is a diagram illustrating the overall shape of a battery pack according to an embodiment of the present invention.
- FIG. 2 is a schematic view of the battery pack of FIG. 1 from above.
- FIG. 3 is a diagram showing an exemplary shape and manufacturing process of a cell assembly provided in the battery pack of FIG. 1.
- FIG. 4 is a diagram showing part A of FIG. 2 in detail.
- FIGS. 5 and 6 are views of the configuration of FIG. 4 viewed from the anterior and posterior directions.
- FIG. 7 is a diagram showing the overall shape of the bus bar assembly provided in the battery pack of FIG. 1.
- Figure 8 is an exploded perspective view of the bus bar assembly of Figure 7.
- FIG. 9 is a diagram briefly showing an embodiment in which the bus bar assembly of FIG. 7 and the electrode lead of the cell assembly are connected from the side direction.
- FIG. 10 is a diagram schematically showing an embodiment in which the bus bar assembly of FIG. 7 and the electrode lead of the cell assembly are connected from the top.
- FIG. 11 is a diagram schematically showing another embodiment in which the bus bar assembly of FIG. 7 and the electrode lead of the cell assembly are connected from the side direction.
- FIG. 12 is a diagram schematically showing another embodiment in which the bus bar assembly of FIG. 7 and the electrode lead of the cell assembly are connected from the top.
- Figure 1 is a diagram illustrating the overall shape of the battery pack 10 according to an embodiment of the present invention
- Figure 2 is a diagram briefly showing the battery pack 10 of Figure 1 from the top
- Figure 3 is a diagram showing the overall shape of the battery pack 10 according to an embodiment of the present invention.
- This is a diagram showing an exemplary shape and manufacturing process of the cell assembly 100 provided in the battery pack 10 of FIG. 1
- FIG. 4 is a diagram showing part A of FIG. 2 in detail.
- illustration of the pack cover 240, bus bar assembly 300, and side plate 500 which will be described later in FIG. 2, will be omitted.
- the X-axis direction shown in the drawing is the front-to-back direction
- the Y-axis direction is the left-right direction perpendicular to the Both can mean vertical up and down directions.
- the battery pack 10 may include a cell assembly 100, a pack housing 200, and a bus bar assembly 300.
- the cell assembly 100 may include a plurality of battery cells 120.
- the cell assembly 100 may not be provided with a separate module case.
- each battery cell 120 may refer to a secondary battery.
- Each of the battery cells 120 may be provided as a pouch-shaped battery cell, a cylindrical battery cell, or a prismatic battery cell.
- each of the battery cells 120 may be a pouch-type battery cell.
- each battery cell 120 may be provided with an electrode lead 140.
- the electrode leads 140 may be formed on both sides of each battery cell 120 in the left and right directions. Additionally, the electrode lead 140 may be mechanically and electrically connected to the bus bar assembly 300.
- the electrode lead 140 may include a first lead 142 (eg, an anode lead) and a second lead 144 (eg, a cathode lead).
- the first lead 142 may be formed on one side of each battery cell 120 in the left and right directions
- the second lead 144 may be formed on the other side of each battery cell 120 in the left and right direction.
- the pack housing 200 can accommodate the cell assembly 100 therein. To this end, the pack housing 200 may be provided with a receiving space for accommodating the cell assembly 100 therein.
- the pack housing 200 will be discussed in more detail in the related description below.
- the bus bar assembly 300 may be disposed on both sides of the cell assembly 100 and coupled to the pack housing 200. Additionally, the bus bar assembly 300 may be connected to the electrode leads 140 of the plurality of battery cells 120.
- the bus bar assembly 300 may be disposed on both sides of the cell assembly 100 in the left and right directions.
- the bus bar assembly 300 may be connected to the electrode leads 140 of the plurality of battery cells 120 in the front-back direction of the cell assembly 100.
- the bus bar assembly 300 can support one side and the other side of the cell assembly 100 in the left and right directions.
- the bus bar assembly 300 is connected to the electrode leads 140 of the plurality of battery cells 120 in the front and rear directions of the cell assembly 100, the cell assembly 100 is connected to the bus bar. It can be stably supported in the forward and backward directions by the assembly 300.
- the bus bar assembly 300 will be looked at in more detail in the related description below.
- the cell assembly 100 can be stably accommodated inside the pack housing 200 through the bus bar assembly 300 coupled to the pack housing 200, thereby reducing the battery pack manufacturing time.
- the number of parts can be minimized.
- the plurality of battery cells 120 may be stacked in the front-back direction and electrically connected to each other.
- the plurality of battery cells 120 may be coupled to each other through an adhesive member T provided between each battery cell 120.
- the adhesive member (T) may be a double-sided tape, but is not limited thereto.
- a plurality of electrode leads 140 may be provided along the front and rear direction of the cell assembly 100 on both left and right sides of the cell assembly 100. That is, in the cell assembly 100 in which a plurality of battery cells 120 are arranged to be stacked in the front-to-back direction, when the cell assembly 100 is viewed as a whole, the electrode leads 140 are located on the left and right sides of the cell assembly 100. It is provided on both sides of the cell assembly 100, and may be provided in large numbers along the front-to-back direction of the cell assembly 100.
- each battery cell 120 has the first lead 142 and the second lead 144 when viewed from the front-back direction of the cell assembly 100. Can be stacked in the front-to-back direction so that they are arranged alternately.
- the cell assembly 100 accommodated in the pack housing 200 can be configured with a simpler structure.
- the battery pack 10 may further include a pair of cell supports 400.
- the pair of cell supports 400 are coupled to the pack housing 200 and may be configured to support both front and rear sides of the cell assembly 100.
- the pair of cell supports 400 may be configured in a plate shape.
- the pair of cell supports 400 may include a first support part 410 and a second support part 420.
- the first support part 410 may support one side of the cell assembly 100 in the front-back direction, and the second support part 420 may support the other side of the cell assembly 100 in the front-back direction. there is.
- the first support part 410 can support the entire side of the cell assembly 100 in the front-back direction
- the second support part 420 can support the entire side of the cell assembly 100 in the front-back direction. It can support the entire other side of.
- the cell assembly 100 can be stably supported in the front-back direction through a pair of plate-shaped cell supports 400, so that the cell assembly ( 100) has the advantage of enabling more stable acceptance.
- the pack housing 200 may include a floor frame 210 and a pair of guide rails 220.
- the floor frame 210 may constitute the lower surface of the pack housing 200.
- the floor frame 210 may be formed in a plate shape with a predetermined thickness in the vertical direction.
- the pair of guide rails 220 are provided on the floor frame 210 and may be arranged on both sides of the cell assembly 100. Specifically, the pair of guide rails 220 may be disposed on both sides of the cell assembly 100 in the left and right directions.
- the pair of cell supports 400 are disposed between the pair of guide rails 220 in the left and right directions of the cell assembly 100, so that both sides can be coupled to the pair of guide rails 220. there is.
- both sides of the cell support 400 are coupled to a pair of guide rails 220 provided on the floor frame 210,
- the cell assembly 100 can be supported more stably by the cell supporter 400.
- bus bar assembly 300 may be coupled to the pair of guide rails 220.
- the pair of guide rails 220 may be formed to extend along the front-back direction of the cell assembly 100 on the floor frame 210.
- the pair of guide rails 220 are formed to extend along the front and rear directions of the cell assembly 100, multiple bus bar assemblies 300 can be coupled to the guide rails 220. Accordingly, since more bus bar assemblies 300 can be connected to the electrode leads 140 of the plurality of battery cells 120, more stable support of the cell assembly 100 may be possible.
- FIGS. 5 and 6 are views of the configuration of FIG. 4 viewed from the anterior and posterior directions.
- FIG. 5 is a view of the configuration of FIG. 4 viewed from the front direction
- FIG. 6 is a view of the configuration of FIG. 4 viewed from the rear direction.
- the pair of guide rails 220 described above may include a first rail 222 and a second rail 224.
- the first rail 222 is disposed on one side of the cell assembly 100 in the left and right directions, and may be formed to extend along the front-back direction of the cell assembly 100. At this time, the above-described bus bar assembly 300 may be coupled to the first rail 222.
- the second rail 224 is disposed on the other side of the cell assembly 100 in the left and right directions, and may be formed to extend along the front-back direction of the cell assembly 100. At this time, the above-described bus bar assembly 300 may be coupled to the second rail 224.
- the first rail 222 may be placed on the left side of the cell assembly 100, and the second rail 224 may be placed on the right side of the cell assembly 100, but is limited to this. It doesn't work.
- the battery pack 10 may further include a pair of first fastening members C1 and a pair of first cell support fixing members F1.
- the first support part 410 can be coupled to the guide rail 220 using a pair of first fastening members C1 and a pair of first cell support fixing members F1.
- the pair of first fastening members C1 pass through the fasteners 412 formed on both sides of the first support portion 410 to connect the first rail 222 and the second rail 224. ) can be inserted in the vertical direction, respectively.
- the pair of first cell support fixing members (F1) are respectively provided in the first rail 222 and the second rail 224, and are coupled to the first fastening member (C1) to form the first support portion ( 410) can be fixed to the first rail 222 and the second rail 224.
- the first fastening member (C1) may be a bolt
- the first shell support fixing member (F1) may be a corresponding square nut.
- the first rail 222 may include step portions 2222 that protrude from both sides of the upper end of the first rail 222 and are formed to face the left and right directions of the cell assembly 100.
- the stepped portion 2222 of the first rail 222 may be formed to extend long along the front-back direction of the cell assembly 100.
- the first fastening member C1 may be inserted into the first rail 222 through a gap between the stepped portions 2222 of the first rail 222.
- the stepped portion 2222 of the first rail 222 is formed when the first cell support fixing member F1 provided in the first rail 222 is coupled with the first fastening member C1, It may be in contact with the first cell support fixing member F1 in the vertical direction. Accordingly, the stepped portion 2222 of the first rail 222 can prevent the first cell support fixing member F1 from being separated.
- the second rail 224 may include step portions 2242 that protrude from both sides of the upper end of the second rail 224 and are formed to face the left and right directions of the cell assembly 100.
- the stepped portion 2242 of the second rail 224 is, It may be formed to extend long along the front-to-back direction of the cell assembly 100.
- the first fastening member C1 may be inserted into the second rail 224 through a gap between the stepped portions 2242 of the second rail 224.
- the stepped portion 2242 of the second rail 224 is formed when the first cell support fixing member F1 provided in the second rail 224 is coupled with the first fastening member C1, It may be in contact with the first cell support fixing member F1 in the vertical direction. Accordingly, the stepped portion 2242 of the second rail 224 can prevent the first cell support fixing member F1 from being separated.
- the battery pack 10 may further include a pair of second fastening members C2 and a pair of second cell support fixing members C2.
- the second support part 420 can be coupled to the guide rail 220 using a pair of second fastening members C2 and a pair of second cell support fixing members F2.
- the pair of second fastening members (C2) pass through fasteners 422 formed on both sides of the second support portion 420 to connect the first rail 222 and the second rail 224. ) can be inserted in the vertical direction, respectively.
- the pair of second cell support fixing members (F2) are respectively provided in the first rail 222 and the second rail 224, and are coupled to the second fastening member (C2) to form the second support portion ( 420) can be fixed to the first rail 222 and the second rail 224.
- the second fastening member (C2) may be a bolt
- the second shell support fixing member (F2) may be a corresponding square nut
- the second fastening member C2 may be inserted into the first rail 222 through a gap between the stepped portions 2222 of the first rail 222.
- the step portion 2222 of the first rail 222 is formed when the second cell support fixing member F2 provided in the first rail 222 is coupled with the second fastening member C2. , may be in contact with the second cell support fixing member (F2) in the vertical direction. Accordingly, the step portion 2222 of the first rail 222 can prevent the second cell support fixing member F2 from being separated.
- the second fastening member C2 may be inserted into the second rail 224 through a gap between the stepped portions 2242 of the second rail 224.
- the step portion 2242 of the second rail 224 is formed when the second cell support fixing member F2 provided in the second rail 224 is coupled with the second fastening member C2. , It may be in contact with the second cell support fixing member (F2) in the vertical direction. Accordingly, the stepped portion 2242 of the second rail 224 can prevent the second cell support fixing member F2 from being separated.
- the battery pack 10 may further include a buffer pad (P) to prevent swelling of the cell assembly 100 .
- P buffer pad
- the buffer pad P may be disposed between the cell assembly 100 and the cell support part 400 in the front-back direction of the cell assembly 100.
- the buffer pad P is between one side in the front-back direction of the cell assembly 100 and the first support portion 410 and between the other side in the front-back direction of the cell assembly 100 and the second support portion ( 420).
- the buffer pad P together with the pair of cell supports 400, can suppress the swelling phenomenon of the cell assembly 100.
- the cushioning pad P may be formed of an elastic material such as a sponge to enable contraction.
- FIG. 7 is a diagram showing the overall shape of the bus bar assembly 300 provided in the battery pack 10 of FIG. 1
- FIG. 8 is an exploded perspective view of the bus bar assembly 300 of FIG. 7
- FIG. 9 is a side view of an embodiment in which the bus bar assembly 300 of FIG. 7 and the electrode lead 140 of the cell assembly 100 are connected.
- FIG. 10 is a diagram briefly showing an embodiment in which the bus bar assembly 300 of FIG. 7 and the electrode lead 140 of the cell assembly 100 are connected from the upper direction. At this time, detailed illustration of the bus bar block 310 described later in FIG. 10 will be omitted.
- the bus bar assembly 300 may include a plurality of bus bar blocks 310 and a plurality of bus bars 320.
- the plurality of bus bar blocks 310 may be coupled to the guide rail 220. At this time, the plurality of bus bar blocks 310 may be coupled to the guide rail 220 in the vertical direction.
- the plurality of bus bars 320 may be provided in at least a portion of the plurality of bus bar blocks 310. Additionally, the plurality of bus bars 320 may be connected to the electrode leads 140 of the plurality of battery cells 120 in the front-back direction of the cell assembly 100. At this time, the plurality of bus bars 320 may be coupled to the bus bar block 310 in the vertical direction. As an example, the bus bar 320 may be made of an electrically conductive metal material such as copper, silver, or tin plating.
- the electrode leads 140 of the plurality of battery cells 120 may be disposed between different bus bar blocks 310 in the front-back direction of the cell assembly 100. .
- the plurality of bus bar blocks 310 press the plurality of bus bars 320 and the electrode leads 140 of the plurality of battery cells 120 in the front-back direction of the cell assembly 100. It can be configured to be interconnected.
- the interconnection between the electrode lead 140 and the bus bar 320 stably achieved without a separate fixing structure by pressing the plurality of bus bar blocks 310, but also the bus bar 310 is pressed.
- the cell assembly 100 can be supported more stably by the bar assembly 300.
- the plurality of bus bars 320 may be arranged along the front-to-back direction of the cell assembly 100. Additionally, the plurality of bus bar blocks 310 may be provided along the front-to-back direction of the cell assembly 100 on the guide rail 220. As an example, the plurality of bus bar blocks 310 may be inserted into the guide rail 220 in a sliding manner through the front and rear ends of the guide rail 220.
- the electrode lead 140 and the bus bar 320 can be interconnected by more bus bar blocks 310, so that more stable support of the cell assembly 100 can be possible.
- the bus bar block 310 may include a first block 312, a second block 314, and a pressing member 316.
- the first block 312 and the second block 314 may be arranged to face each other in the front-back direction of the cell assembly 100 .
- the first block 312 and the second block 314 may be non-conductors, but are not limited thereto.
- the pressing member 316 may be disposed between the first block 312 and the second block 314 in the front-back direction of the cell assembly 100.
- the pressing member 316 may be configured to be driven in the vertical direction to press the first block 312 and the second block 314 with respect to the front-back direction of the cell assembly 100.
- the pressing member 316 may be formed in a shape corresponding to the side surfaces of the first block 312 and the second block 314.
- lower ends of the first block 312, the second block 314, and the pressing member 316 may be located inside the guide rail 220.
- the first block 312 and the second block 314 can be pressed only by driving the pressing member 316 in the vertical direction, so that the electrode lead 140 and the electrode lead 140 have a simple structure. Interconnection between bus bars 320 may be achieved.
- the pressing member 316 may include a vertically moving portion 3162 and a tapered portion 3164.
- the vertical movement unit 3162 may be configured to move in the vertical direction.
- the vertical moving part 3162 may be a bolt.
- the tapered portion 3164 is coupled to the outer peripheral surface of the vertical moving portion 3162 and may be formed to have a tapered shape in the downward direction.
- the tapered portion 3164 may be a non-conductor, but is not limited thereto.
- the tapered portion 3164 moves in the vertical direction together with the vertical moving portion 3162 to move the first block 312 and the second block 314 with respect to the front-back direction of the cell assembly 100. It may be configured to pressurize.
- the tapered portion 3164 has one side (front side) in the front-back direction corresponding to the side surface of the first block 312, and the other side (rear side) in the front-back direction is formed in a shape corresponding to the side surface of the second block 314. It can be formed into a corresponding shape.
- the tapered portion 3164 when the tapered portion 3164 is driven in the downward direction according to the driving of the vertical moving portion 3162, the tapered portion 3164 is disposed on both sides of the tapered portion 3164 in the front and rear directions ( The first block 312 and the second block 314 can be pressed in the front-back direction to widen the gap between the second block 312 and the second block 314 .
- the tapered portion 3164 of the pressing member 316 has a tapered shape with a narrow width as it goes downward, it is possible to pressurize the first block 312 and the second block 314 with a simpler structure. There is an advantage.
- the pressing member 316 may further include a bus bar block fixing portion 3166.
- the bus bar block fixing part 3166 is located inside the guide rail 220 and connected to the vertical moving part 3162, and is positioned at the bottom of the first block 312 in the front-back direction of the cell assembly 100. It may be placed between the bottom of the second block 314. As an example, the bus bar block fixing part 3166 may be a square nut corresponding to the vertical moving part 3162.
- This bus bar block fixing part 3166 may be configured to be fastened to the vertical moving part 3162 to fix the bus bar block 310 to the guide rail 220.
- the lower end of the vertical moving part 3162 may be fastened to the bus bar block fixing part 3166 as it is driven in the vertical direction.
- the vertical moving part 3162 may be inserted into the guide rail 220 through a gap between the step portions 2222 and 2242 of the guide rail 220.
- the stepped portions 2222 and 2242 of the guide rail 220 are,
- the vertical moving part 3162 may be inserted into the first rail 222 through a gap between the stepped parts 2222 of the first rail 222.
- the step portion 2222 of the first rail 222 is a bus bar block when the bus bar block fixing portion 3166 located inside the first rail 222 is fastened with the vertical moving portion 3162. By contacting the fixing part 3166 in the vertical direction, the bus bar block fixing part 3166 can be prevented from being separated.
- the vertical moving part 3162 may be inserted into the second rail 224 through a gap between the stepped parts 2242 of the second rail 224.
- the step portion 2242 of the second rail 224 is a bus bar block when the bus bar block fixing portion 3166 located inside the second rail 224 is fastened with the vertical moving portion 3162. By contacting the fixing part 3166 in the vertical direction, the bus bar block fixing part 3166 can be prevented from being separated.
- bus bar block 310 can be stably fixed to the guide rail 220 by the fastening structure of the vertical moving part 3162 and the bus bar block fixing part 3166.
- the bus bar 320 may be configured to surround a portion of the bus bar block 310.
- the bus bar 320 is pressed against the front-back direction of the cell assembly 100 as the first block 312 and the second block 314 move and is connected to the electrode lead 140. It can be configured as follows.
- bus bar 320 may be interconnected.
- the bus bar 320 may include a seating portion 322 and a lead connection portion 324.
- the seating portion 322 may be disposed on an upper portion of the bus bar block 310.
- the seating portion 322 may include a hole H in the center having a shape corresponding to the top of the tapered portion 3164.
- the hole H of the seating portion 322 may guide the arrangement of the seating portion 322 with respect to the tapered portion 3164. That is, the hole H of the seating portion 322 can be inserted into the upper end of the tapered portion 3164.
- the lead connection portion 324 is formed to extend downward from both ends in the front-back direction of the seating portion 322 and is located on the side surface of the first block 312 and the second block 314 in the front-back direction. Can be placed adjacent to each other.
- the lead connection portion 324 is pressed on both sides of the cell assembly 100 in the front-back direction according to the movement of the first block 312 and the second block 314 according to the pressure of the tapered portion 3164, forming a plurality of It may be configured to be connected to the electrode leads 140 of the battery cells 120.
- the lead connection portion 324 disposed adjacent to the first block 312 and the second block 314 has a tapered portion ( Since it is pressed by 3164 and comes into close contact with the electrode lead 140, the interconnection between the electrode lead 140 and the bus bar 320 can be made more stably and effectively.
- a plurality of battery cells 120 are stacked so that adjacent first leads 142 and second leads 144 are alternately arranged in the front-back direction of the cell assembly 100.
- the bus bar blocks 310 provided with the bus bar 320 are, of bus bar (320)
- the lead connection portion 324 can be pressed in both front and rear directions.
- bus bar blocks 310 that are not provided with the bus bar 320 may press the electrode leads 140 disposed between different bus bar blocks 310. That is, as shown in FIG.
- the bus bar blocks 310 not provided with the bus bar 320 are pressurized by the downward movement of the tapered portion 3164, and the first block 312 and the second block 310 As the gap between blocks 314 widens, the electrode leads 140 disposed between different bus bar blocks 310 can be pressed and brought into close contact with the lead connection portion 324 of the opposing bus bar 320.
- bus bars 320 and the electrode leads 140 are pressed against the front and rear directions of the cell assembly 100 by the plurality of bus bar blocks 310, thereby forming a plurality of battery cells having the electrode leads 140. (120) can be stably connected.
- the bus bar 320 is illustrated as being provided only in a part of the bus bar block 310, but it is not limited thereto, and the bus bar 320 is also provided in the entire bus bar block 310. It can be.
- FIG. 11 is a diagram briefly showing another embodiment in which the bus bar assembly 300 of FIG. 7 and the electrode lead 140 of the cell assembly 100 are connected from the side direction;
- FIG. 12 is a diagram schematically showing another embodiment in which the bus bar assembly 300 of FIG. 7 and the electrode lead 140 of the cell assembly 100 are connected from the top. At this time, detailed illustration of the bus bar block 310 described above in FIG. 11 will be omitted.
- a pair of battery cells 120 may have electrode leads 140 of the same polarity in the front-back direction.
- a set of a pair of battery cells 120 having electrode leads 140 of the same polarity in the front-back direction have electrode leads 140 of different polarities.
- the cell assembly 100 is a set of a pair of battery cells 120 having a first lead 142, as long as the set has a first lead 142.
- a set of a pair of battery cells 120 and another set of a pair of battery cells 120 adjacent to each other in the front-to-back direction may have a second lead 144 .
- the set of the pair of battery cells 120 having the first lead 142 and the set of the pair of battery cells 120 having the second lead 144 are located before and after the cell assembly 100. It may be configured to be arranged alternately with respect to the direction.
- the bus bar blocks 310 provided with the bus bar 320 among the plurality of bus bar blocks 310 arranged along the front-rear direction according to the pressure on the tapered portion 3164 are the bus bars 320.
- the lead connection portion 324 can be pressed in both front and rear directions. Then, according to the pressure of the tapered portion 3164, among the bus bar blocks 310, the bus bar blocks 310 not provided with the bus bar 320 have electrode leads disposed between different bus bar blocks 310. (140) can be pressurized.
- bus bar 320 and the electrode lead 140 are pressed against the front and rear directions of the cell assembly 100 by the plurality of bus bar blocks 310, so that the sets of the pair of battery cells 120 are It can be connected stably.
- the battery pack 10 may further include a pair of side plates 500.
- the pair of side plates 500 may connect the pair of cell supports 400 in the front-back direction of the cell assembly 100. Additionally, the pair of side plates 500 may be arranged to face each other in the left and right directions of the cell assembly 100.
- the pair of side plates 500 may connect the first support part 410 and the second support part 420 in the front-back direction of the cell assembly 100. Additionally, the pair of side plates 500 may support the pair of cell supports 400 in the left and right directions of the cell assembly 100.
- a pair of cell supports 400 can be stably connected to the front and rear directions of the cell assembly 100. Accordingly, the cell assembly 100 can be supported more stably by the pair of cell supports 400.
- a pair of side plates 500 can support the pair of cell supports 400 on both sides, so that shaking of the cell assembly 100 in the left and right directions can be suppressed.
- the pair of side plates 500 may include a first side plate 510 and a second side plate 520.
- the first side plate 510 may connect the first support part 410 and the second support part 420. Additionally, the first side plate 510 may support one side of the first support part 410 and the second support part 420 in the left and right directions.
- the second side plate 520 is disposed to face the first site plate 510 in the left and right directions of the cell assembly 100,
- the first support part 410 and the second support part 420 may be connected. Additionally, the second side plate 520 may support the other side of the first support part 410 and the second support part 420 in the left and right directions.
- the first side plate 510 may be placed on the left side of the cell assembly 100, and the second side plate 520 may be placed on the right side of the cell assembly 100, but is limited to this. It doesn't work.
- the battery pack 10 includes a pair of third fastening members (C3), a pair of third cell support fixing members (F3), and a pair of fourth fastening members (C4). ) and a pair of fourth cell support fixing members (F4).
- the connection between the first support part 410 and the second support part 420 includes a pair of third fastening members C3, a pair of third cell support fixing members F3, and a pair of fourth fastening members C3. It can be achieved by a fastening member (C4) and a pair of fourth cell support fixing members (F4).
- the pair of third fastening members C3 are formed on one side of the first support part 410 and the second support part 420 in the left and right directions, and are positioned in the front-back direction of the cell assembly 100. It can be placed opposite to .
- the first side plate 510 is formed to extend long in the front-back direction of the cell assembly 100, and a pair of long holes 512 are formed to face each other in the front-back direction of the cell assembly 100. ) may include.
- the pair of third fastening members C3 may pass through the pair of long holes 512 of the first side plate 510 in the left and right directions of the cell assembly 100, respectively.
- the pair of third cell support fixing members (F3) are combined with the pair of third fastening members (C3) to connect the first side plate 510 to the first support part 410 and the second support part ( 420) can be fixed.
- the third fastening member C3 may be a bolt
- the third shell support fixing member F3 may be a nut having an arbitrary shape corresponding thereto.
- the pair of fourth fastening members C4 are formed on the other sides of the first support part 410 and the second support part 420 in the left and right directions, and are positioned in the front and rear direction of the cell assembly 100. can be placed opposite to each other.
- the second side plate 520 is formed to extend long in the front-to-back direction of the cell assembly 100, and a pair of long holes 522 are formed to face each other in the front-to-back direction of the cell assembly 100. ) may include.
- the pair of fourth fastening members C4 may pass through a pair of long holes 522 of the second side plate 520 in the left and right directions of the cell assembly 100, respectively.
- the pair of fourth cell support fixing members (F4) are combined with the pair of fourth fastening members (C4) to connect the second side plate 520 to the first support part 410 and the second support part ( 420) can be fixed.
- the fourth fastening member C4 may be a bolt
- the fourth shell support fixing member F4 may be a nut having an arbitrary shape corresponding thereto.
- the battery pack 10 may further include a heat dissipation member 600.
- the heat dissipation member 600 may be disposed between the cell assembly 100 and the floor frame 210 in the vertical direction.
- the heat dissipation member 600 may be made of resin with good thermal conductivity, and may absorb heat emitted from the cell assembly 100 and dissipate the heat to the outside of the pack housing 200. That is, the heat emitted from the cell assembly 100 may be dissipated to the outside of the pack housing 200 through the heat dissipation member 600 and the floor frame 210.
- the heat dissipation member 600 can support the lower portion of the cell assembly 100 by being disposed between the cell assembly 100 and the floor frame 210 in the vertical direction.
- the battery pack 10 may further include a cooling module disposed below the floor frame 210 or inside the floor frame 210 to enable cooling of the cell assembly 100.
- the cooling module may be a heat sink.
- a plurality of battery cells 120 are stacked in the front-back direction to form the cell assembly 100. At this time, at least one cell assembly 100 may be formed.
- the cell assembly 100 is placed between a pair of guide rails 220, and the bus bar assembly 300 is coupled to the guide rails 220.
- bus bar 320 and the electrode lead 140 are connected in the front-back direction using the bus bar assembly 300, so that the plurality of battery cells 120 are connected to each other.
- a pair of cell supports 400 are placed on both sides of the cell assembly 100 in the front-back direction, and the pair of cell supports 400 are coupled to the guide rail 220.
- the pair of cell supports 400 are connected through a pair of side plates 500.
- the cell assembly 100 can be stably accommodated inside the pack housing 200 through the bus bar assembly 300 and the cell support portion 400 coupled to the pack housing 200. there is.
- the pack housing 200 described above may further include a side frame 230 and a pack cover 240.
- the side frame 230 may form a side surface of the pack housing 200.
- the pack cover 240 may be coupled to the upper part of the side frame 230. At this time, the pack cover 240 may cover the top of the cell assembly 100 accommodated inside the pack housing 200.
- At least one cell assembly 100 can be accommodated inside the pack housing 200 shown in FIG. 2, and includes a guide rail 220, a bus bar assembly 300, and a pair of cell supports 400. , the side plate 500, etc. may also be formed to correspond to the number of cell assemblies 100 accommodated inside the pack housing 200.
- the cell is connected to the cell through the bus bar assembly 300 and the cell support portion 400 coupled to the pack housing 200, without a module-type frame accommodating the cell assembly 100. Not only can the assembly 100 be stably supported, but parts during manufacturing the battery pack 10 can be simplified.
- connection between the electrode lead 140 and the bus bar 320 and the plurality of battery cells 120 are made by pressing the bus bar block 310, a separate welding process is not required and will be required in the future. Accordingly, the output of the cell assembly 100 can be easily changed.
- the battery pack 10 includes, in addition to the cell assembly 100, the pack housing 200, and the bus bar assembly 300, various devices for controlling charging and discharging of the cell assembly 100, for example. It may further be equipped with a BMS (Battery Management System), current sensor, and fuse.
- BMS Battery Management System
- current sensor current sensor
- fuse fuse
- the battery pack 10 according to the present invention can be applied to automobiles such as electric vehicles. That is, the automobile according to the present invention may include at least one battery pack 10 according to the present invention.
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- Aviation & Aerospace Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Description
Claims (15)
- 전극 리드를 구비한 복수 개의 배터리 셀들을 포함하는 셀 어셈블리;상기 셀 어셈블리를 내부에 수용하는 팩 하우징; 및상기 셀 어셈블리의 양측에 배치되어 상기 팩 하우징에 결합되고, 상기 복수 개의 배터리 셀들의 전극 리드와 연결되는 버스바 어셈블리를 포함하는 것을 특징으로 하는 배터리 팩.
- 제 1항에 있어서,상기 복수 개의 배터리 셀들은, 전후 방향에 대해 적층되며, 각각의 배터리 셀 사이에 구비된 접착부재를 통해 상호 결합되는 것을 특징으로 하는 배터리 팩.
- 제 1항에 있어서,상기 팩 하우징에 결합되고, 상기 셀 어셈블리의 전후 양측을 지지하도록 구성된 한 쌍의 셀 지지부를 더 포함하는 것을 특징으로 하는 배터리 팩.
- 제 3항에 있어서,상기 팩 하우징은,플로어 프레임; 및상기 플로어 프레임 상에 구비되며, 상기 셀 어셈블리의 양측에 배치되고, 상기 버스바 어셈블리가 결합되는 한 쌍의 가이드 레일을 포함하고,상기 셀 지지부는,상기 셀 어셈블리의 좌우 방향에 대해 상기 한 쌍의 가이드 레일 사이에 배치되어 양측이 상기 한 쌍의 가이드 레일에 결합되는 것을 특징으로 하는 배터리 팩.
- 제 4항에 있어서,상기 한 쌍의 가이드 레일은,상기 플로어 프레임 상에서, 상기 셀 어셈블리의 전후 방향을 따라 연장되어 형성되는 것을 특징으로 하는 배터리 팩.
- 제 4항에 있어서,상기 버스바 어셈블리는,상기 가이드 레일에 결합되는 복수의 버스바 블록; 및상기 복수의 버스바 블록의 적어도 일부에 구비되고, 상기 셀 어셈블리의 전후 방향에 대해 상기 복수 개의 배터리 셀들의 전극 리드와 연결되는 복수의 버스바를 포함하고,상기 복수 개의 배터리 셀들의 전극 리드는 상기 셀 어셈블리의 전후 방향에 대해 서로 다른 버스바 블록 사이에 배치되고, 상기 복수의 버스바 블록은 상기 복수의 버스바와 상기 복수 개의 배터리 셀들의 전극 리드를 상기 셀 어셈블리의 전후 방향에 대해 가압하여 상호 연결하도록 구성된 것을 특징으로 하는 배터리 팩.
- 제 6항에 있어서,상기 복수의 버스바는,상기 셀 어셈블리의 전후 방향을 따라 배치되고,상기 복수의 버스바 블록은,상기 가이드 레일 상에서 상기 셀 어셈블리의 전후 방향을 따라 구비되는 것을 특징으로 하는 배터리 팩.
- 제 6항에 있어서,상기 버스바 블록은,제 1 블록;상기 제 1 블록과 상기 셀 어셈블리의 전후 방향에 대해 대향되게 배치되는 제 2 블록; 및상기 셀 어셈블리의 전후 방향에 대해 상기 제 1 블록과 상기 제 2 블록 사이에 배치되고, 상하 방향으로 구동되어 상기 제 1 블록 및 상기 제 2 블록을 상기 셀 어셈블리의 전후 방향에 대해 가압하도록 구성된 가압부재를 포함하고,상기 제 1 블록, 상기 제 2 블록 및 상기 가압부재의 하단은 상기 가이드 레일 내부에 위치되는 것을 특징으로 하는 배터리 팩.
- 제 8항에 있어서,상기 가압부재는,상하 방향으로 이동되도록 구성된 수직이동부; 및상기 수직이동부의 외주면에 결합되고, 하측 방향에 대해 테이퍼 형상을 가지도록 형성되는 테이퍼부를 포함하고,상기 테이퍼부는,상기 수직이동부와 함께 상하 방향으로 이동되어 상기 제 1 블록 및 상기 제 2 블록을 상기 셀 어셈블리의 전후 방향에 대해 가압하도록 구성된 것을 특징으로 하는 배터리 팩.
- 제 9항에 있어서,상기 가압부재는,상기 가이드 레일 내부에 위치되어 상기 수직이동부에 연결되고, 상기 셀 어셈블리의 전후 방향에 대해 상기 제 1 블록의 하단과 상기 제 2 블록의 하단 사이에 배치되는 버스바 블록 고정부를 더 포함하고,상기 버스바 블록 고정부는,상기 수직이동부와 체결되어 상기 버스바 블록을 상기 가이드 레일에 대해 고정하도록 구성된 것을 특징으로 하는 배터리 팩.
- 제 9항에 있어서,상기 버스바는,상기 버스바 블록의 일부를 감싸고, 상기 제 1 블록 및 상기 제 2 블록의 이동에 따라 상기 셀 어셈블리의 전후 방향에 대해 가압되어 상기 전극 리드와 연결되도록 구성된 것을 포함하는 것을 특징으로 하는 배터리 팩.
- 제 11항에 있어서,상기 버스바는,상기 버스바 블록의 상부에 배치되는 안착부; 및상기 안착부의 전후 방향에서의 양단으로부터 하측 방향으로 연장되어 형성되어 상기 제 1 블록 및 상기 제 2 블록의 전후 방향에서의 측면에 인접 배치되는 리드 연결부를 포함하고,상기 리드 연결부는,상기 테이퍼부의 가압에 따른 상기 제 1 블록 및 상기 제 2 블록의 이동에 따라 상기 셀 어셈블리의 전후 방향 양측으로 가압되어 상기 복수 개의 배터리 셀들의 전극 리드와 연결되도록 구성된 것을 특징으로 하는 배터리 팩.
- 제 3항에 있어서,상기 셀 어셈블리의 전후 방향에 대해 상기 한 쌍의 셀 지지부 사이를 연결하고, 상기 셀 어셈블리의 좌우 방향에 대해 대향되게 배치되는 한 쌍의 사이드 플레이트를 더 포함하는 것을 특징으로 하는 배터리 팩.
- 제 4항에 있어서,상하 방향에 대해 상기 셀 어셈블리와 상기 플로어 프레임 사이에 배치되는 방열부재를 더 포함하는 것을 특징으로 하는 배터리 팩.
- 제 1항 내지 제 14항 중 어느 한 항에 따른 배터리 팩을 적어도 하나 이상 포함하는 것을 특징으로 하는 자동차.
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KR20170056976A (ko) * | 2015-11-16 | 2017-05-24 | 삼성에스디아이 주식회사 | 이차 전지 모듈 |
KR20170057740A (ko) * | 2015-11-17 | 2017-05-25 | 주식회사 엘지화학 | 전지 팩의 내부에 위치되는 버스바 지지 유닛 |
KR20170135479A (ko) * | 2016-05-31 | 2017-12-08 | 주식회사 엘지화학 | 배터리 모듈 및 이를 포함하는 배터리 팩, 자동차 |
KR20190071454A (ko) * | 2017-12-14 | 2019-06-24 | 주식회사 엘지화학 | 버스바 어셈블리를 포함하는 배터리 모듈 |
KR20210114670A (ko) * | 2020-03-11 | 2021-09-24 | 에스케이이노베이션 주식회사 | 배터리 모듈 |
KR20220059533A (ko) | 2019-11-28 | 2022-05-10 | 섀플러 테크놀로지스 아게 운트 코. 카게 | 분리 클러치를 작동시키기 위한 회전 축을 갖는 자기 클러치 |
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KR20170056976A (ko) * | 2015-11-16 | 2017-05-24 | 삼성에스디아이 주식회사 | 이차 전지 모듈 |
KR20170057740A (ko) * | 2015-11-17 | 2017-05-25 | 주식회사 엘지화학 | 전지 팩의 내부에 위치되는 버스바 지지 유닛 |
KR20170135479A (ko) * | 2016-05-31 | 2017-12-08 | 주식회사 엘지화학 | 배터리 모듈 및 이를 포함하는 배터리 팩, 자동차 |
KR20190071454A (ko) * | 2017-12-14 | 2019-06-24 | 주식회사 엘지화학 | 버스바 어셈블리를 포함하는 배터리 모듈 |
KR20220059533A (ko) | 2019-11-28 | 2022-05-10 | 섀플러 테크놀로지스 아게 운트 코. 카게 | 분리 클러치를 작동시키기 위한 회전 축을 갖는 자기 클러치 |
KR20210114670A (ko) * | 2020-03-11 | 2021-09-24 | 에스케이이노베이션 주식회사 | 배터리 모듈 |
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