WO2020101073A1 - Module de batterie - Google Patents

Module de batterie Download PDF

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Publication number
WO2020101073A1
WO2020101073A1 PCT/KR2018/014028 KR2018014028W WO2020101073A1 WO 2020101073 A1 WO2020101073 A1 WO 2020101073A1 KR 2018014028 W KR2018014028 W KR 2018014028W WO 2020101073 A1 WO2020101073 A1 WO 2020101073A1
Authority
WO
WIPO (PCT)
Prior art keywords
cartridge
icb
battery module
bus bar
snap
Prior art date
Application number
PCT/KR2018/014028
Other languages
English (en)
Korean (ko)
Inventor
방석준
Original Assignee
엘지전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지전자 주식회사 filed Critical 엘지전자 주식회사
Priority to PCT/KR2018/014028 priority Critical patent/WO2020101073A1/fr
Publication of WO2020101073A1 publication Critical patent/WO2020101073A1/fr

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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
    • H01M50/50—Current conducting connections for cells or batteries
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • 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
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • 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
    • H01M50/244—Secondary casings; Racks; Suspension devices; Carrying devices; Holders characterised by their mounting method
    • 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
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • 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
    • H01M50/284—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with incorporated circuit boards, e.g. printed circuit boards [PCB]
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/193—Means for increasing contact pressure at the end of engagement of coupling part, e.g. zero insertion force or no friction
    • 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 module, and more particularly, to a battery module capable of connecting the power of the battery cells in a non-welding manner without deformation of the cell leads.
  • a secondary battery As a power source for a vehicle, a high-output large-capacity is required, so it is necessary to develop a medium-to-large battery module having a structure in which a plurality of small secondary batteries (unit cells) are connected in series and / or in parallel.
  • the battery module according to the prior art uses techniques such as laser welding and ultrasonic welding as a method of connecting small secondary batteries in series and / or in parallel, but the welding and electrode terminal bonding method is complicated in manufacturing and assembly processes, There was a problem that the process cost is increased and maintenance is difficult.
  • the first problem to be solved by the present invention is to provide a battery module that can connect the power of the battery cells in a weldingless manner.
  • the second problem to be solved by the present invention is to provide a battery module capable of minimizing damage to a cell lead between assembly and removal of the battery module.
  • the third problem to be solved by the present invention is to provide a battery module that is easy to assemble and remove and replaces damaged battery cells.
  • a fourth problem to be solved by the present invention is to provide a battery module with improved electrical connection of battery cells.
  • the battery module according to the present invention each comprising a cell body, a cell lead protruding from the cell body, a plurality of battery cells stacked on each other; A plurality of cartridges, each of which includes a cartridge body in which the cell body is disposed, and a cartridge bus bar protruding from the cartridge body and contacting the cell lead; And an ICB (Interconnect Circuit Board) including a plurality of ICB busbars that pressurize the cartridge busbar so that the cell leads and cartridge busbars are in close contact, and a circuit board electrically connected to the ICB busbars. On the side and the other side opposite to the one side, the cartridge busbars are respectively contacted to form a cell lead-busbar contact.
  • ICB Interconnect Circuit Board
  • the ICB bus bar includes a fixing part fixed to the ICB; And an insertion portion protruding from the fixing portion and into which the cell lead-bus bar contact portion is inserted.
  • the ICB includes a snap protrusion at an upper end and a lower end, and the cartridge may include a snap hole engaged with the snap protrusion and snap-fitted.
  • the cartridge body may include at least one of a snap protrusion and a snap groove, and the plurality of cartridges may be mutually coupled by snap-fit engagement by the snap protrusion and the snap groove.
  • the cell lead-busbar contacts are in close contact to connect the power of the battery cells in a weldingless manner.
  • the cell lead is in close contact with the cartridge bus bar without bending deformation, so that damage to the cell lead between assembly and removal of the battery module can be minimized.
  • each of the plurality of cell lead-bus bar contacts may be inserted into the plurality of ICB bus bars to facilitate assembly and removal of the battery module.
  • the electrical connection of the battery cells can be improved by the ICB busbar pressing the cell lead-busbar contacts.
  • FIG. 1 is a conceptual diagram of a vehicle including a battery pack according to the present invention.
  • FIG. 2 is an exploded perspective view of a battery pack including a battery module according to the present invention.
  • FIG 3 is a perspective view of a battery module according to the present invention.
  • FIG. 4 is an exploded perspective view of a battery module according to the present invention.
  • FIG. 5 is a diagram briefly showing the configuration of a battery module according to the present invention.
  • FIG. 6 is a perspective view of a first cartridge according to the present invention.
  • FIG. 7 is a perspective view of a second cartridge according to the present invention.
  • FIG. 8 is a perspective view of a cartridge bus bar according to the present invention.
  • FIG. 9 is a view showing a contact state between the cell lead and the cartridge bus bar according to the present invention.
  • FIG. 10 is a view showing a state in which the ICB is assembled to the cell lead-bus bar contact according to the present invention.
  • FIG. 11 is a cross-sectional view of the ICB bus bar according to the present invention.
  • FIG. 12 is a perspective view of an ICB according to the present invention.
  • FIG. 13 is a perspective view of first and second ICB busbars according to the present invention.
  • FIG. 14 is a cross-sectional view showing a state in which the boss portion is coupled to the fixing portion according to the present invention.
  • 15 is a side view showing a state in which the ICB according to the present invention is coupled to the cartridge.
  • FIG. 16 is a perspective view of an ICB according to another embodiment of the present invention.
  • 17 is a view showing one surface of a pressing body according to another embodiment of the present invention.
  • the present invention is described in the three-dimensional coordinate system, respectively, shown in Figures 1 and 2, named as front, rear, upper, lower, left and right. Can be.
  • the present invention may be described based on a spatial Cartesian coordinate system by x-axis, y-axis, and z-axis orthogonal to each other shown in FIG. 3 and the like.
  • the x-axis, y-axis, and z-axis are defined with the vertical direction as the Z-axis direction and the longitudinal direction of the battery cell as the x-axis direction.
  • Each axial direction (x-axis direction, y-axis direction, z-axis direction) means both directions in which each axis extends.
  • each axis direction (+ x-axis direction, + y-axis direction, + z-axis direction) means a positive direction which is one of both directions in which each axis extends.
  • the '-' sign in front of each axial direction (-x-axis direction, -y-axis direction, -z-axis direction) means a negative direction, which is the other of the two directions in which each axis extends.
  • FIGS. 1 and 2 a battery pack including a battery module according to the present invention will be described with reference to FIGS. 1 and 2.
  • FIG. 1 is a conceptual diagram of a vehicle including a battery pack according to the present invention.
  • 2 is an exploded perspective view of a battery pack including a battery module according to the present invention.
  • the vehicle 1 may include a motor 5 that generates power to drive the vehicle 1.
  • the vehicle 1 may include a battery pack 10 that generates electrical energy.
  • the motor 5 is operated by receiving electric energy from the battery pack 10 and can convert electric energy into kinetic energy.
  • the battery pack 10 may be located at the center of the bottom of the vehicle body.
  • the battery pack 10 may be disposed between the front rotation axis and the rear rotation axis of the vehicle 1.
  • the battery pack 10 may repeat charging to increase the battery capacity and discharging to decrease the battery capacity. When charging and discharging the battery pack 10, heat may be generated.
  • the battery pack 10 may include a casing 20 forming an outer shape.
  • the casing 20 may include a tray 22 that supports the load of the battery module 100.
  • the casing 20 may include a cover 21 coupled to the tray 22 to cover the battery module 100.
  • the casing 20 may include a support panel 25 that reinforces the rigidity of the tray 22 and distributes the load of the heat sink 40 evenly on the tray 22.
  • the battery pack 10 may include a heat sink 40 through which cooling water absorbing thermal energy generated in the battery module 100 flows.
  • the heat sink 40 is formed of a material having a high heat transfer coefficient, and cooling water may flow therein.
  • the battery pack 10 may include a thermal pad 60 that transfers heat energy of the battery module 100 to the heat sink 40.
  • the thermal pad 60 may be a thermal conductive pad.
  • the thermal pad 60 may be formed of a material having high thermal conductivity.
  • the battery pack 10 may include a bracket 80 disposed on an upper side of the battery module 100 to support the cover 21.
  • the battery pack 10 may include a battery module 100 including cells generating electric energy.
  • a plurality of battery modules 100 may be provided in the battery pack 10.
  • the plurality of battery modules 100 may be electrically connected.
  • the plurality of battery modules 100 in the battery pack 10 may be disposed on the same plane.
  • a plurality of battery modules 100 may be arranged up and down.
  • FIG. 3 is a perspective view of a battery module according to the present invention.
  • 4 is an exploded perspective view of a battery module according to the present invention.
  • 5 is a diagram briefly showing the configuration of a battery module according to the present invention.
  • 6 is a perspective view of a first cartridge according to the present invention.
  • 7 is a perspective view of a second cartridge according to the present invention.
  • 8 is a perspective view of a cartridge bus bar according to the present invention.
  • 9 is a view showing a contact state between the cell lead and the cartridge bus bar according to the present invention.
  • 10 is a view showing a state in which the ICB is assembled to the cell lead-bus bar contact according to the present invention.
  • 11 is a cross-sectional view of the ICB bus bar according to the present invention.
  • 12 is a perspective view of an ICB according to the present invention.
  • 13 is a perspective view of first and second ICB busbars according to the present invention.
  • 14 is a cross-sectional view showing a state in which the boss portion is coupled to the fixing portion according to the present invention.
  • 15 is a side view showing a state in which the ICB according to the present invention is coupled to the cartridge.
  • the battery module 100 includes a battery cell 130, cartridges 110 and 120, and an ICB (Interconnect Circuit Board) 160.
  • ICB Interconnect Circuit Board
  • the battery cell 130 may generate electrical energy.
  • the structure and method of generating the electric energy by the battery cell 130 is not different from that of the well-known secondary battery, so a detailed description thereof will be omitted.
  • a plurality of battery cells 130 may be stacked with each other.
  • the battery cells 130 may be stacked with each other in the y-axis direction.
  • Each of the plurality of battery cells 130 may include a cell body 131 and a cell lead 133 protruding from the cell body 131.
  • the cell lead 133 may protrude from the cell body 131 in the x-axis direction.
  • the cell lead 133 may be understood as an electrode terminal in a secondary battery.
  • the cell lead 133 may protrude from at least one side of the cell body 131. As an example, as shown in FIG. 4, the cell leads 133 may protrude from each side of the cell body 131. In this case, the cartridge bus bars 111 and 121, which will be described later, may also protrude from both sides of the cartridge bodies 119 and 129 corresponding to the cell leads 133.
  • the cell lead 133 according to the present invention is not bent or deformed for contact with a bus bar described later. Accordingly, damage to the cell lead 133 can be prevented, and will be described later in more detail.
  • the battery cells 130 may be disposed inside the cartridges 110 and 120.
  • a plurality of cartridges 110 and 120 may be stacked with each other.
  • the cartridges 110 and 120 may be stacked mutually in the y-axis direction.
  • Each of the plurality of cartridges 110 and 120 includes cartridge bodies 119 and 129 in which the cell body 131 is disposed, and cartridge bus bars 111 and 121 protruding from the cartridge bodies 119 and 129. can do.
  • the cartridge bus bars 111 and 121 may protrude from the cartridge bodies 119 and 129 in the x-axis direction.
  • the cartridge bus bars 111 and 121 may be electrically connected by contacting the cell lead 133 which is an electrode terminal. That is, the electrical energy generated by the battery cell 130 may be transmitted to the outside through the electrical connection between the cell lead 133 and the cartridge busbars 111 and 121.
  • the cartridge busbars 111 and 121 are respectively contacted to form the cell lead-busbar contact portion A. have.
  • the one side of the cell lead 133 is in contact with the cartridge bus bar 121 in the -y axis direction, the cell lead 133 The other side may contact the cartridge busbar 111 in the + y-axis direction to form a cell lead-busbar contact portion A.
  • the gap between the cartridge busbars 111 and 121 contacting both sides of the cell lead 133 may be made smaller than the thickness of the cell lead 133 before the cartridge busbar 121 contacts. Thereby, the electrical connection of the cell lead-busbar contact portion A can be improved.
  • a plurality of cell lead-bus bar contacts A may also be formed as shown in FIG. 3 and the like. have.
  • a plurality of ICB bus bars 170 and 180 may also be provided, and electrically connected to the plurality of cell lead-bus bar contacts A formed as described above, which will be described later in more detail.
  • the cartridge bodies 119 and 129 and the cartridge bus bars 111 and 121 may be integrally inserted and injected.
  • the manufacturing process of the battery module 100 may be simplified.
  • reference numeral 111b is a cartridge bus bar 111 protruding from the cartridge body 119. Further, reference numerals 111a and 111c are cartridge bus bars 111 inserted or recessed in the cartridge body 119.
  • the part 111a recessed in the cartridge body 119 of the cartridge busbar 111 is flat, whereas in the case of FIG. 8 (b), the cartridge body of the cartridge busbar 111
  • the portions 111a and 111c recessed in (119) are formed by bending once.
  • the cartridge busbar 111 formed as shown in FIG. 8 (b) may be easier to prevent departure from the cartridge body 119 than the cartridge busbar 111 formed as shown in FIG. 8 (a).
  • the shape of the cartridge bus bar 111 shown in FIG. 8 is merely exemplary, and the shape of the cartridge bus bar 111 according to the present invention is not limited thereto.
  • the cartridges 110 and 120 may include a first cartridge 110 and a second cartridge 120. 3 to 5, the second cartridge 120 is disposed at both ends of the battery module 100 among the cartridges 110 and 120, and the first cartridge 110 is disposed in the remaining areas Can be At this time, a separator 140 that divides the space of the battery module 100 may be further included.
  • the first cartridge 110 may include a first cartridge body 119 and a first cartridge bus bar 111.
  • the second cartridge 120 may include a second cartridge body 129 and a second cartridge bus bar 121.
  • the first cartridge body 119 may include a first snap protrusion 114 and a first snap groove 113.
  • the second cartridge body 129 may include a second snap groove 123.
  • the combination of the plurality of first cartridges 110, or between the first cartridge 110 and the second cartridge 120, the first snap protrusion 114 and the first snap groove 113, or It may be implemented by a snap fit coupling between the first snap protrusion 114 and the second snap groove 123.
  • the first snap of the any one of the first cartridges 110 may be snap-fit to the first snap groove 113 of the adjacent cartridge 110.
  • the first snap protrusion 114 of any one of the first cartridges 110 is snap-fitted to the second snap groove 123 of the second cartridge 120 Can be.
  • the battery module 100 may further include a bolt 150 that integrally fixes the plurality of cartridges 110 and 120.
  • the cartridge bodies 119 and 129 may be formed with bolt holes 115 and 125 through which the bolt 150 penetrates in the y-axis direction.
  • the separator 140 may also be formed with a bolt hole 145 through which the bolt 150 passes.
  • the plurality of cartridges 110 and 120 accommodating the plurality of battery cells 130 therein are firstly snap-fitted to each other, and secondly bolted by bolts 150 to be securely fixed. .
  • the thermal pad 60 may be disposed under the battery module 100 according to the present invention.
  • the battery module 100 is assembled as a whole Will be described in detail.
  • the ICB 160 is an ICB body 161, an ICB bus bar 170, 180, and a circuit board (PCB, Printed Circuit Board) electrically connected to the ICB bus bar 170, 180. And a connector 164.
  • PCB Printed Circuit Board
  • Each component of the ICB 160 may be disposed or combined on the ICB body 161.
  • the ICB bus bars 170 and 180 are fixed to the ICB body 161, 171 and 181, protruding from the fixed parts 171 and 181, and the cell lead-bus bar contact portion A is inserted. It may include the insertion portion (172, 182).
  • the ICB 160 may include a boss portion 165 protruding perpendicular to a surface facing the fixing portions 171 and 181 of the ICB body 161.
  • the boss portion 165 may protrude from the ICB body 161 in the -x axis direction.
  • the fixing parts 171 and 181 may be formed with through holes 175 and 185 through which the boss part 165 penetrates.
  • the fixing parts 171 and 181 may be formed with through holes 175 and 185 through which the boss part 165 penetrates.
  • three through holes 175 and 185 are formed in each of the fixing parts 171 and 181, but this is only an example.
  • the boss portion 165 may pass through the through-holes 175 and 185 and be heat-sealed with the fixing portions 171 and 181 to be combined with the fixing portions 171 and 181, and then separated by applying heat again. have.
  • the boss portion 165 is formed of a plurality of forks that widen the gap toward the end, and is formed to narrow the gap when an external force is applied, and the fixing portion 171 and the snap Fit can be combined.
  • the insertion portions 172 and 182 may protrude from the fixing portions 171 and 181 in the -x axis direction.
  • the first ICB bus bar 170 includes two inserting portions 172a and 172b, but based on the inserting portion 172a located in the + y axis direction for a brief description.
  • the inserting portion 172a located in the + y axis direction for a brief description.
  • the insertion portion 172a includes a cell press-bus bar contact portion A, a first pressing body 1721, a second pressing body 1722 spaced apart from each other, and the first and second pressing bodies 1721, 1722) may include a connector 1723 connecting each upper end.
  • connection body 1723 can exhibit a function of protecting the cell lead-busbar contact portion A from impact and contamination from the outside.
  • the first and second pressing bodies 1721 and 1722 may be formed to extend in the z-axis direction.
  • the first and second pressing bodies 1721 and 1722 may contact the cartridge busbars 111 and 121 constituting the cell lead-busbar contact portion A. In other words, the first and second pressing bodies 1721 and 1722 may be in contact with the cartridge busbars 111 and 121 constituting the cell lead-busbar contact portion A in the y-axis direction.
  • the cell leads 133 may be sequentially electrically connected to the cartridge busbars 111 and 121 and the first ICB busbar 170.
  • the interval between the first and second pressing bodies 1721, 1722 is greater than the width of the cell lead-busbar contact portion A It can be narrow.
  • the first and second pressing bodies 1721 and 1722 press the cartridge bus bars 111 and 121 largely, thereby leading to the cell lead-
  • the electrical connection of the busbar contacts A can be improved.
  • the improvement of the electrical connection of the cell lead-busbar contact A described above can be achieved in the battery module according to the second or third embodiment of the present invention, which will be described below.
  • the ICB 160 according to the second embodiment of the present invention, one end is connected to any one of the outer surface of the first and second pressing bodies (1721, 1722), the other end A rod 169 that is a fixed end may be further included.
  • the rod 169 may have a cylindrical shape, but is not particularly limited in shape or material.
  • the rod 169 may be disposed along the y-axis direction, and both ends thereof are fixed ends, thereby assisting the first and second pressing bodies 1721 and 1722 to press the cartridge busbars 111 and 121,
  • the electrical connection of the cell lead-busbar contact A can be improved.
  • the first and second pressing bodies 1721 to improve the electrical connection of the cell lead-bus bar contact (A) , 1722) may include reinforcing members (176, 177, 179) on at least one of the surfaces facing each other.
  • the reinforcing members 176, 177, and 179 may be made of materials different from the materials of the first and second pressing bodies 1721 and 1722.
  • the reinforcing member may be a protrusion 176 protruding from the first and second pressing bodies 1721, 1722 to a predetermined height.
  • a plurality of protrusions 176 may be arranged at intersections to improve the electrical connection of the cell lead-bus bar contacts A.
  • the reinforcing member may be a protruding line 177 formed to extend in the z-axis direction of the first and second pressing bodies 1721 and 1722.
  • the protruding lines 177 are spaced apart from each other to improve the electrical connection of the cell lead-bus bar contact portion (A).
  • both the protrusion 176 and the protrusion line 177 can be understood as examples of the protruding member.
  • the reinforcing member may be an electrical conductor 179 attached to the first and second pressing bodies 1721 and 1722.
  • the electrical conductor 179 is formed of a material having a higher electrical conductivity than the first and second pressing bodies 1721 and 1722, thereby improving the electrical connection of the cell lead-bus bar contact portion A.
  • each of the first and second pressing bodies 1721 and 1722 may include first and second entry bodies 1724 and 1725 at the bottom.
  • the distance between the first and second entry bodies 1724 and 1725 may increase as the distance from the first and second pressing bodies 1721 and 1722 respectively.
  • the insertion path is widened, so that it is easy to insert the cell lead-bus bar contact portion A into the insertion portion 172a.
  • the ICB bus bars 170 and 180 may include connection terminals 173 and 183 protruding from the fixing parts 171 and 181 in the + z axis direction.
  • connection terminals 173 and 183 may be electrically connected to the circuit board 163, and a connector 164 for transmitting power to the outside may be installed on the circuit board 163.
  • the electrical energy generated by the battery cell 130 sequentially leads to the cell leads 133, the cartridge busbars 111 and 121, the ICB busbars 170 and 180, the circuit board 163 and the connector 164. It can be passed through and transmitted to the outside.
  • the ICB bus bars 170 and 180 may include a first ICB bus bar 170 and a second ICB bus bar 180.
  • the second ICB bus bar 180 is located at both ends of the ICB 160, and the rest may be the first ICB bus bar 170.
  • first ICB bus bar 170 is provided with two inserts 172a and 172b
  • second ICB bus bar 180 is provided with one insert 182.
  • a plurality of ICB busbars 170 and 180 are provided in one ICB 160 so that a plurality of cell lead-busbar contacts A can be electrically connected simultaneously.
  • the ICB 160 may include snap projections 166 and 167 at the upper and lower ends.
  • the cartridges 110 and 120 engage the snap holes 116, 117, 126, and 127 engaged with the snap projections 166, 167 and snap-fitted. It can contain.
  • the ICB 160 is spaced apart from the second cartridge 120 by a predetermined distance in the + x axis direction, and the cell lead-busbar contact portion A is gradually inserted and moves in the -z axis direction.
  • the snap projection 166 provided on the upper portion of the ICB 160 moves in the -x axis direction and is inserted into the snap hole 126 provided on the upper portion of the second cartridge 120 to be snap-fit
  • the snap protrusion 167 provided at the lower end of the ICB 160 also moves in the -x axis direction and is inserted into the snap hole 127 provided at the lower end of the second cartridge 120 to be snap-fit.
  • the ICB 160 into which the cell lead-bus bar contact portion A is inserted may be firmly fixed to the second cartridge 120.
  • the snap projection 166 provided at the upper end of the ICB 160 protrudes in the -x axis direction from the ICB 160 and the snap projection provided at the lower end of the ICB 160 ( 167) may protrude in the direction from the ICB 160 toward the inside of the ICB 160 among the y-axis directions.
  • the snap-fit engagement direction at the upper end of the ICB 160 may intersect at a right angle to the snap-fit engagement direction at the lower end of the ICB 160. Thereby, the ICB 160 can be more firmly fixed to the cartridges 110 and 120.
  • Vehicle 10 Battery pack
  • battery module 110 first cartridge
  • first cartridge busbar 121 second cartridge busbar
  • PCB 165 boss section

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Connection Of Batteries Or Terminals (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

La présente invention concerne un module de batterie comprenant : de multiples cellules de batterie empilées ensemble, chacune des cellules de batterie comprenant un corps de cellule et une patte de cellule faisant saillie du corps de cellule; de multiples cartouches empilées ensemble, chacune des cartouches comprenant un corps de cartouche dans lequel est disposé le corps de cellule, et une barre omnibus de cartouche faisant saillie du corps de cartouche et venant en contact avec la patte de cellule; et une carte de circuit imprimé d'interconnexion (ICB) comprenant de multiples barres omnibus d'ICB dont chacune appuie sur la barre omnibus de cartouche de telle sorte que la barre omnibus de cartouche vienne en contact serré avec la patte de cellule, et une carte de circuit imprimé connectée électriquement aux barres omnibus d'ICB, la barre omnibus de cartouche venant en contact avec chaque côté parmi un côté et l'autre côté opposé de la patte de cellule pour former un contact patte de cellule-barre omnibus.
PCT/KR2018/014028 2018-11-15 2018-11-15 Module de batterie WO2020101073A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI754413B (zh) * 2020-07-03 2022-02-01 美商莫仕有限公司 電池連接模組

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013187046A (ja) * 2012-03-08 2013-09-19 Nissan Motor Co Ltd 組電池
KR20140128477A (ko) * 2013-04-25 2014-11-06 에스케이컨티넨탈이모션코리아 주식회사 파우치셀용 하우징 및 상기 하우징을 구비한 파우치셀 유니트
US20150171399A1 (en) * 2013-12-18 2015-06-18 Hyundai Motor Company High voltage battery for vehicle
KR20170021631A (ko) * 2015-08-18 2017-02-28 주식회사 엘지화학 셀 리드 연결 장치 및 이를 포함하는 배터리 모듈
KR20170077467A (ko) * 2015-12-28 2017-07-06 한국단자공업 주식회사 배터리모듈용 직렬연결장치

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013187046A (ja) * 2012-03-08 2013-09-19 Nissan Motor Co Ltd 組電池
KR20140128477A (ko) * 2013-04-25 2014-11-06 에스케이컨티넨탈이모션코리아 주식회사 파우치셀용 하우징 및 상기 하우징을 구비한 파우치셀 유니트
US20150171399A1 (en) * 2013-12-18 2015-06-18 Hyundai Motor Company High voltage battery for vehicle
KR20170021631A (ko) * 2015-08-18 2017-02-28 주식회사 엘지화학 셀 리드 연결 장치 및 이를 포함하는 배터리 모듈
KR20170077467A (ko) * 2015-12-28 2017-07-06 한국단자공업 주식회사 배터리모듈용 직렬연결장치

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI754413B (zh) * 2020-07-03 2022-02-01 美商莫仕有限公司 電池連接模組

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