WO2016175591A1 - 배터리 팩 및 그 제조 방법 - Google Patents
배터리 팩 및 그 제조 방법 Download PDFInfo
- Publication number
- WO2016175591A1 WO2016175591A1 PCT/KR2016/004482 KR2016004482W WO2016175591A1 WO 2016175591 A1 WO2016175591 A1 WO 2016175591A1 KR 2016004482 W KR2016004482 W KR 2016004482W WO 2016175591 A1 WO2016175591 A1 WO 2016175591A1
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- WO
- WIPO (PCT)
- Prior art keywords
- fastening member
- end plate
- cartridge
- case
- plate
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title description 18
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000007769 metal material Substances 0.000 claims abstract description 11
- 239000003792 electrolyte Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 21
- 230000008878 coupling Effects 0.000 claims description 15
- 238000010168 coupling process Methods 0.000 claims description 15
- 238000005859 coupling reaction Methods 0.000 claims description 15
- 238000003780 insertion Methods 0.000 claims description 6
- 230000037431 insertion Effects 0.000 claims description 6
- 239000005022 packaging material Substances 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 7
- 229910052744 lithium Inorganic materials 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012790 adhesive layer Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010292 electrical insulation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000007774 positive electrode material Substances 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000005540 biological transmission Effects 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
- 229910052729 chemical element Inorganic materials 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 230000003446 memory effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910000652 nickel hydride Inorganic materials 0.000 description 1
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
- H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
- H01M10/647—Prismatic or flat cells, e.g. pouch 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/105—Pouches or flexible bags
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- 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
- 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
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- 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
- H01M50/271—Lids or covers for the racks or secondary casings
- H01M50/273—Lids or covers for the racks or secondary casings characterised by the material
- H01M50/276—Inorganic material
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- 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
- H01M10/6555—Rods or plates arranged between the 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
- H01M10/656—Means for temperature control structurally associated with the cells characterised by the type of heat-exchange fluid
- H01M10/6561—Gases
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
Definitions
- the present invention relates to a battery including at least one secondary battery, and more particularly, to a battery pack and a vehicle including the same, which can be improved in assembling performance and a fixing force of the secondary battery and the cartridge can be stably secured, and such a battery pack. It relates to a manufacturing method.
- водородн ⁇ е ⁇ е ⁇ ество Commercially available secondary batteries include nickel cadmium batteries, nickel hydride batteries, nickel zinc batteries, and lithium secondary batteries. Among them, lithium secondary batteries have almost no memory effect compared to nickel-based secondary batteries, and thus are free of charge and discharge. The self-discharge rate is very low and the energy density is high.
- Such lithium secondary batteries mainly use lithium-based oxides and carbon materials as positive electrode active materials and negative electrode active materials, respectively.
- the lithium secondary battery includes an electrode assembly in which a positive electrode plate and a negative electrode plate coated with the positive electrode active material and the negative electrode active material are disposed with a separator interposed therebetween, and a packaging material that seals the electrode assembly together with the electrolyte solution, that is, a battery case.
- a lithium secondary battery may be classified into a can type secondary battery in which an electrode assembly is embedded in a metal can and a pouch type secondary battery in which an electrode assembly is embedded in a pouch of an aluminum laminate sheet, depending on the shape of the exterior material.
- secondary batteries are widely used not only in small devices such as portable electronic devices but also in medium and large devices such as automobiles and power storage devices. When used in such medium and large devices, a large number of secondary batteries are electrically connected to increase capacity and output.
- the pouch-type secondary battery is widely used in such a medium-large device because of its advantages such as easy lamination and light weight.
- an end plate may be provided at the outermost sides of the cell assembly in the stacking direction.
- the end plate is mainly composed of a metal material, and may serve to protect and fix the secondary battery and the cartridge and maintain the surface pressure.
- the end plate may be coupled to the cell assembly through a fastening member such as a bolt. That is, while the bolt penetrates the end plate and the cell assembly together, both ends of the bolt may be fixed to maintain the combined state of the end plate and the cell assembly. In particular, the bolt is often inserted into the hole of the cartridge with one end fixed to the end plate.
- a fastening member such as a bolt
- the angle formed between the end plate and the bolt may affect the assembly and quality of the battery pack. That is, in order for the bolt to be easily inserted into the hole of the cartridge, and the assembly of the end plate and the cartridge and the assembly between the cartridges are made accurately, it is preferable that the angle between the end plate and the bolt is maintained at right angles. If the angle of the bolt is not perpendicular to the end plate, the process of inserting the bolt into the hole of the cartridge may not be easy.
- the holes of the cartridge may be configured to be connected to each other in a direction perpendicular to the seating surface of the cartridge. Therefore, when the bolts are not perpendicular to the end plate, when the cartridges are stacked while the bolts are inserted into the holes of the cartridges, the cartridges may not be stacked in the correct position. In addition, in order to stack the cartridge in the correct position, it is necessary to change the angle of the bolt with respect to the end plate during the stacking of the cartridge. In this process, the bolt or the end plate is damaged or deformed, so that the fixing of the cartridge by the bolt is properly performed. It may not be done.
- the present invention has been made to solve the above problems, the battery pack and its manufacturing method that can be improved in the assembly and processability, the durability is improved, the stack configuration of the cartridge can be stably maintained, and such
- An object of the present invention is to provide a vehicle including a battery pack.
- Battery pack for achieving the above object, a plurality of secondary batteries having an electrode assembly, an electrolyte and a pouch packaging material and arranged in the vertical direction; A plurality of cartridges accommodating the secondary battery in an inner space, a fastening hole is formed, and stacked in a vertical direction; A lower end plate made of a plate-shaped metal material and positioned under the stack of the secondary battery and the cartridge; A first fastening member fixed to the lower end plate; And a second fastening member formed in an elongated shape so as to stand perpendicular to the lower end plate, and having a lower end coupled to the first fastening member and penetrating the fastening hole of the cartridge.
- first fastening member may be a nut
- second fastening member may be a bolt
- the second fastening member may have threads formed at both ends thereof, and a thread formed at a lower end thereof may be coupled to the threads of the first fastening member.
- first fastening member may be welded to the lower end plate.
- the lower end plate has a through hole formed therein, and the first fastening member is inserted into the through hole of the lower end plate and is positioned below the lower end plate and is disposed on the lower surface of the lower end plate.
- the welding part to be welded may be provided.
- the second fastening member may be formed in a cylindrical shape, and at least a portion thereof may include a protrusion having a polygonal shape along an outer circumferential surface thereof.
- the battery pack may further include a pack case accommodating the secondary battery and the cartridge in an internal space.
- the pack case may include a lower case having an empty space therein and having an open top, and an upper case coupled to an upper open end of the lower case to seal the upper open end.
- the lower end plate and the first fastening member may be configured to be embedded in the lower case, and the second fastening member may be configured to protrude into an inner space of the lower case.
- the second fastening member may protrude upward of the upper case, and an upper end thereof may be coupled by a third fastening member.
- the battery pack according to the present invention may further include an upper end plate formed of a plate-shaped metal material and disposed on an upper portion of the stack of the secondary battery and the cartridge to cover an upper portion of the secondary battery and the cartridge. 2 fastening member can penetrate the said upper end plate.
- the battery pack according to the present invention which is formed in a plate shape, the secondary battery and the cartridge is provided on top of the stack, the surface of the electrical equipment is further equipped with at least one electronic component of the BMS, current sensor, relay and fuse.
- the second fastening member may be configured to penetrate through the electric plate.
- the vehicle according to the present invention for achieving the above object includes a battery pack according to the present invention.
- the battery pack manufacturing method for achieving the above object, the step of fixing the first fastening member to the lower end plate made of a plate-like metal material; Coupling the second fastening member to the first fastening member such that the second fastening member formed to extend in one direction is erected perpendicularly to the lower end plate; And stacking the cartridge to accommodate the secondary battery so that the second fastening member penetrates through the fastening hole.
- the fixing of the first fastening member may be performed by welding the first fastening member to the lower end plate.
- the battery pack manufacturing method between the second fastening member coupling step and the cartridge stacking step, the lower end plate and the inside of the lower case is formed in the form of the inner space is formed in the upper open;
- the method may further include embedding the first fastening member.
- the battery pack manufacturing method after the cartridge stacking step, the step of coupling the upper case to the upper open end of the lower case with the second fastening member penetrated; And coupling a third fastening member to an upper end of the second fastening member protruding to an upper portion of the upper case.
- the fastening member such as a bolt
- the fastening member can be stably formed at right angles to the end plate, the assembly and processability of the battery module can be improved.
- the process of fitting the cartridge to the bolt can be made easily, by laminating the bolt can be made in the correct position.
- the bolt itself is not welded, it is possible to prevent the problem that the perpendicularity is distorted during the deformation or welding of the bolt.
- the angle of the bolt is easy to form a right angle, it is not necessary to forcibly change the angle of the bolt to accurately stack the cartridge when the cartridge is fitted to the bolt. Therefore, according to this aspect of the present invention, since there is no fear that the bolt or the end plate will be broken, the mutual engagement of the cartridge by the bolt can be stably maintained.
- the lower end plate may be embedded in the pack case.
- the rigidity of the pack case can be reinforced, and the lower end plate can be stably maintained without moving, so that the fixing force of the cartridge coupled with the lower end plate and the secondary battery housed inside the cartridge is Can be improved.
- FIG. 1 is a combined perspective view schematically illustrating some components of a battery pack according to an exemplary embodiment of the present invention.
- FIG. 2 is an exploded perspective view showing some components of FIG. 1 separately.
- FIG. 3 is a perspective view schematically showing the configuration of a cartridge and a secondary battery according to an embodiment of the present invention.
- FIG. 4 is a view schematically illustrating a coupling configuration of a lower end plate, a first fastening member, and a second fastening member according to an embodiment of the present invention.
- FIG. 5 is a top view of FIG. 4.
- FIG. 6 is a cross-sectional view taken along a line A1-A1 'of FIG. 5.
- FIG. 7 is an enlarged view of a portion A2 of FIG. 6.
- FIG. 8 is an exploded perspective view schematically illustrating a configuration of a battery pack according to an embodiment of the present invention.
- FIG. 9 is a combined perspective view of FIG. 8.
- FIG. 10 is an exploded perspective view schematically illustrating a configuration of a lower case and a lower end plate according to an embodiment of the present invention.
- FIG. 11 is a flowchart schematically illustrating a method of manufacturing a battery pack according to an embodiment of the present invention.
- FIG. 1 is a combined perspective view schematically illustrating some components of a battery pack according to an exemplary embodiment of the present invention.
- 2 is an exploded perspective view showing some components of FIG. 1 separately.
- the battery pack according to the present invention includes a secondary battery 100, a cartridge 200, a lower end plate 300, a first fastening member 400, and a second fastening member 500. It may include. 1 and 2, the rechargeable battery 100 may be included in the cartridge 200.
- the secondary battery 100 is a component that stores or emits electrical energy through charge and discharge, and in particular, may be a pouch type secondary battery.
- the secondary battery 100 may include an electrode assembly, an electrolyte, and a pouch packaging material.
- the secondary battery 100 according to the present invention may be a lithium secondary battery.
- the electrode assembly may be configured such that at least one positive electrode plate and at least one negative electrode plate are disposed with the separator interposed therebetween. More specifically, the electrode assembly may be classified into a winding type in which one positive electrode plate and one negative electrode plate are wound together with a separator, and a stack type in which a plurality of positive electrode plates and a plurality of negative electrode plates are alternately stacked with a separator interposed therebetween. .
- the pouch packaging material may be configured to include an outer insulating layer, a metal layer, and an inner adhesive layer.
- the pouch sheath may be formed of a metal thin film such as an aluminum thin film to protect internal components such as the electrode assembly and the electrolyte, and to improve the electrochemical properties and the heat dissipation of the electrode assembly and the electrolyte. have.
- such an aluminum thin film may be formed between an insulating layer formed of an insulating material in order to secure electrical insulation between components inside the secondary battery 100, such as an electrode assembly and an electrolyte, or other components outside the secondary battery 100. That is, it may be interposed between the outer insulating layer and the inner adhesive layer.
- the pouch sheath may be composed of two pouches, and at least one of the pouch sheaths may have a concave inner space.
- the electrode assembly may be accommodated in the inner space of the pouch.
- the outer peripheral surfaces of the two pouches are provided with a sealing portion such that the sealing portions are fused to each other, so that the inner space in which the electrode assembly is accommodated can be sealed.
- each electrode plate of the electrode assembly is provided with an electrode tab, one or more electrode tabs may be connected to the electrode lead.
- the electrode lead is interposed between the sealing portions of the two pouches and exposed to the outside of the pouch packaging material, thereby functioning as an electrode terminal of the secondary battery 100.
- the secondary battery 100 may be included in a plurality of battery packs.
- the plurality of secondary batteries 100 may be arranged in a vertical direction in such a manner that their wide sides face down to face the top and the bottom.
- the cartridge 200 may be configured to accommodate the secondary battery 100 in an inner space, and in particular to surround the outer circumferential portion of the secondary battery 100 from the outside.
- FIG. 3 is a perspective view schematically showing the configuration of the cartridge 200 and the secondary battery 100 according to an embodiment of the present invention.
- the cartridge 200 may include a main frame 210 formed in a substantially rectangular ring shape.
- the main frame 210 of the cartridge 200 may be composed of four unit frames connected to both ends.
- the cartridge 200 may be provided in a form in which each unit frame is separately manufactured and then assembled together, or may be molded into an integrated form from the beginning.
- the cartridge 200 is made of a plastic material and may be manufactured by injection molding.
- the pouch type secondary battery 100 may be configured in a substantially rectangular shape. Therefore, as in the above embodiment, when the main frame 210 of the cartridge 200 is formed in a rectangular ring shape, the edge of the secondary battery 100 is located outside by placing the secondary battery 100 in a central empty space. It can be configured to wrap in. Therefore, the cartridge 200 may accommodate the secondary battery 100 and protect the outside of the secondary battery 100.
- the cartridge 200 may include a cooling plate 220 made of a thermally conductive material in a central portion thereof.
- the cartridge 200 may include a cooling plate 220 made of aluminum at a central portion of the square ring defined by the main frame 210.
- the cooling plate 220 may be composed of two plates spaced apart by a predetermined distance in the vertical direction, that is, the upper plate and the lower plate.
- a flow path P is formed between the two cooling plates 220 such that a refrigerant such as air may move.
- one secondary battery 100 may be accommodated in each of the upper part of the upper plate and the lower part of the lower plate. In this case, it can be said that two secondary batteries 100 are accommodated in one cartridge 200.
- the heat generated from the secondary battery 100 may be transferred to the adjacent cooling plate 220 and discharged to the outside through the refrigerant flowing in the flow path between the cooling plates 220.
- the cartridge 200 may be configured to be stacked on each other.
- the cartridge 200 may be included in a plurality of battery packs.
- the cartridge 200 may be stacked in a vertical direction.
- the cartridge 200 may be formed with a concave-convex structure in a shape corresponding to each other, the upper surface and the lower surface of the stacked surface, for example, the main frame. And, because of the concave-convex structure formed in this way, the fastening property and fixing force between the cartridge 200 can be improved, the concave-convex structure serves as a guide can be more easily assembled.
- the cartridge 200 accommodates the pouch-type secondary battery 100 in an internal space formed by stacking, and limits the external exposure of the secondary battery 100 to prevent the secondary battery 100 from external physical or chemical elements. It is possible to protect the and guide the mutual arrangement of the pouch-type secondary battery 100, while preventing the flow of the stacked assembly.
- a fastening hole may be formed on at least one side.
- the cartridge 200 as indicated by H2 in Figure 3, at least one of the four unit frames, or two of the unit frame is provided with a fastening hole in the form of penetrating in the vertical direction to meet the corner portion. Can be.
- the lower end plate 300 may have a plate shape, that is, a wide plate shape.
- the lower end plate 300 may be made of a metal material to ensure rigidity.
- the lower end plate 300 may be formed of a rectangular plate made of steel.
- the lower end plate 300 may be positioned below the stack of the secondary battery 100 and the cartridge 200. That is, the lower end plate 300 is disposed below the stack formed by stacking the secondary battery 100 and the cartridge 200 to each other, and is coupled to the stack of the secondary battery 100 and the cartridge 200. Can be.
- the lower end plate 300 may protect the stack of the secondary battery 100 and the cartridge 200 from the lower side, and improve the fixing force of the stack.
- the first fastening member 400 may be coupled to and fixed to the lower end plate 300.
- the first fastening member 400 may be configured in the form of a nut, as shown in FIG. 2.
- the first fastening member 400 at least a portion of the outer peripheral surface may be configured in a polygonal shape, the inner peripheral surface may be configured in a circular shape.
- a screw thread may be formed on an inner circumferential surface of the first fastening member 400.
- the second fastening member 500 may be coupled to the first fastening member 400.
- FIG. 4 is a view schematically illustrating a coupling configuration of the lower end plate 300, the first fastening member 400, and the second fastening member 500 according to an embodiment of the present invention.
- 5 is a top view of FIG. 4, and
- FIG. 6 is a cross-sectional view taken along line A1-A1 'of FIG. 5.
- the second fastening member 500 may be configured to extend in one direction, such as a rod.
- the second fastening member 500 may be configured such that the longitudinal direction is parallel to the direction in which the cartridges 200 are stacked, as shown in various drawings. That is, the second fastening member 500 may be configured in a form standing up and down.
- the second fastening member 500 may be configured to stand perpendicular to the lower end plate 300.
- the second fastening member 500 may have a lower end coupled to the first fastening member 400.
- the first fastening member 400 is fixed to the lower end plate 300 as shown in FIG. 6. Therefore, the second fastening member 500 may also be fixed to the lower end plate 300.
- the second fastening member 500 may be configured in the form of a bolt, and in the form of a long bolt extending in one direction.
- the second fastening member 500 may be formed in a shape corresponding to an inner circumferential surface of the first fastening member 400 having a nut shape, for example, a circular shape, and may be configured in the form of a thread formed on the outer circumferential surface of the lower end. have.
- the second fastening member 500 having a bolt shape may have a lower end inserted into the first fastening member 400 having a nut shape.
- the second fastening member 500 may pass through the fastening hole of the cartridge 200.
- the second fastening member 500 may pass through fastening holes formed in each of the plurality of cartridges 200 stacked in the vertical direction.
- the cartridge 200 may be fixedly coupled to the lower end plate 300 by the penetration of the second fastening member 500, and the cartridges 200 may be fixedly coupled to each other, and the inside of the cartridge 200 may be fixed.
- the secondary battery 100 accommodated in the movement may also be limited.
- the second fastening member 500 may have threads formed at both ends thereof. That is, as shown in FIGS. 2 and 6, the second fastening member 500 may have a screw thread formed at the upper end as well as the lower end. In this case, the second fastening member 500 may be coupled to the first fastening member 400 through a screw thread formed at the lower end, and may be coupled to the third fastening member via a screw thread formed at the upper end. At this time, the third fastening member, like the first fastening member 400, may be configured in the form of a nut.
- the first fastening member 400 and the third fastening member are coupled to the threads formed at the lower end and the upper end, so that the components located therebetween, such as the cartridge 200 and the lower end plate ( 300) and the like can be fixed.
- the first fastening member 400 may be welded to the lower end plate 300.
- the second fastening member 500 is fixed to the lower end plate 300 by coupling the second fastening member 500 to the first fastening member 400 welded to the lower end plate 300.
- the first fastening member 400 may be configured in the form of a nut, and at least a portion of the outer circumferential surface may be welded to the lower end plate 300.
- the second fastening member 500 having a bolt shape may be rotatably coupled to the inner circumferential surface of the first fastening member 400 through a screw thread.
- the fixing force between the first fastening member 400 and the lower end plate 300 can be stably ensured. have. Furthermore, since the first fastening member 400 is unlikely to be separated from the lower end plate 300 even during the use of the battery pack, the first fastening member 400, the lower end plate 300, and the first fastening member ( The mutual coupling state of the second fastening members 500 coupled to 400 may be stably maintained.
- the second fastening member 500 may not be welded to the lower end plate 300. Therefore, the second fastening member 500 may be prevented from being deformed or damaged due to welding of the second fastening member 500, thereby preventing a problem that the right angle of the second fastening member 500 is distorted. Furthermore, since the first fastening member 400 formed short in one direction is welded without being welded to the second fastening member 500 formed in one direction, the second fastening member 500 is formed at a right angle with respect to the lower end plate 300. It may be easier to do.
- the first fastening member 400 may be inserted into the through hole of the lower end plate 300 and welded to the lower surface of the lower end plate 300. This will be described in more detail with reference to FIG. 7.
- FIG. 7 is an enlarged view of a portion A2 of FIG. 6.
- the lower end plate 300 may have a through hole formed in a vertical direction through one side thereof, as indicated by H3.
- the first fastening member 400 may include an inserting portion 410 and a welding portion 420.
- the insertion part 410 and the welding part 420 may be configured in a form that is physically separated or separated from each other, as shown in the figure may be configured in an integrated form that cannot be separated from each other.
- the insertion part 410 of the first fastening member 400 may be inserted into the through hole H3 of the lower end plate 300.
- the insertion portion 410 of the first fastening member 400 may be configured in the form of a short prism having a size equal to or smaller than that of the through hole.
- the insertion part 410 may be configured to penetrate the through hole H3 of the lower end plate 300 so that an upper end thereof protrudes above the lower end plate 300.
- the welding part 420 of the first fastening member 400 may be positioned below the lower end plate 300 and welded to the lower surface of the lower end plate 300.
- the welding part 420 may be configured to have a size larger than that of the insertion part 410, so that the welding part 420 may not penetrate the through hole H3 of the lower end plate 300, but may be configured to be caught by the through hole H3. have.
- the upper surface of the portion formed larger than the welding portion 420 may be in contact with the lower surface of the lower end plate 300 to be welded to the lower end plate 300 at such a contact portion.
- the weld 420 of the first fastening member 400 is configured to be caught by the lower surface of the lower end plate 300 at the portion indicated by W in FIG.
- the lower surface and the laser welding may be fixed.
- the first fastening member 400 while the first fastening member 400 is stably fixed to the lower end plate 300, welding can be made smoothly. Therefore, the process of welding the first fastening member 400 to the lower end plate 300 during the manufacture of the battery pack can be easily performed, and the first fastening member 400 is connected to the lower end plate during the use of the battery pack. Separation from 300) can be prevented. In addition, the fixing force and the squareness of the second fastening member 500 coupled to the first fastening member 400 can be secured stably.
- the second fastening member 500 may be formed in a cylindrical shape, as shown in various drawings.
- the second fastening member 500 may include a protrusion 510 having a polygonal shape along at least a portion of an outer circumferential surface thereof.
- the second fastening member 500 may be formed in a cylindrical shape as a whole, and a protrusion 510 having a polygonal pillar shape may be formed in a portion thereof. have.
- the protrusion 510 of the second fastening member 500 may have an outer circumferential surface having a hexagonal pillar shape.
- the protrusion 510 of the second fastening member 500 is positioned in contact with the upper portion of the first fastening member 400 when the first fastening member 400 and the second fastening member 500 are rotated to each other. It can be configured to.
- the cylindrical shape of the second fastening member 500 through the cylindrical shape of the second fastening member 500, it can be in close contact with the inner surface of the fastening hole (H2) while smoothly penetrating the fastening hole (H2) of the cartridge (200).
- assembling of the second fastening member 500 with respect to the first fastening member 400 may be easier.
- a process of rotating the second fastening member 500 to the hexagonal protrusion 510 of the second fastening member 500 by using a fastening tool having a shape such as a wrench may be performed more easily.
- the protrusion 510 is formed at an adjacent portion of the first fastening member 400, thereby facilitating the rotation of the second fastening member 500 when the second fastening member 500 is rotated, and the rotational force is reduced. 2 can be sufficiently delivered to the fastening member 500.
- FIG. 8 is an exploded perspective view schematically illustrating a configuration of a battery pack according to an embodiment of the present invention
- FIG. 9 is a combined perspective view of FIG. 8.
- the battery pack according to the present invention may further include a pack case 600.
- the pack case 600 may include an empty space therein to accommodate the secondary battery 100 and the cartridge 200 in the internal space.
- the secondary battery 100 and the cartridge 200 may be stacked in a plurality to constitute a laminate B.
- the laminate B of the secondary battery 100 and the cartridge 200 may be formed. ) May be stored in the inner space of the pack case 600.
- the pack case 600 may include an upper case 620 and a lower case 610.
- the lower case 610 may be configured to have an empty space therein and an upper portion of the lower case 610.
- the upper case 620 may be coupled to the upper open end of the lower case 610 to seal the upper open end.
- the upper case 620 and the lower case 610 is provided with a sealing member such as a rubber pad on the edge portion in contact with each other, it is possible to improve the sealing force.
- FIG. 10 is an exploded perspective view schematically showing the configuration of the lower case 610 and the lower end plate 300 according to an embodiment of the present invention.
- the lower end plate 300 and the first fastening member 400 may be configured to be embedded in the lower case 610. That is, the lower case 610 has a lower housing 611 made of a polymer material having an inner space formed in a form in which a lower part and a side part are blocked, and a lower polymer part 610 that is coupled to a lower part of the lower housing 611.
- the lower cover 612 may be configured.
- the lower end plate 300 and the first fastening member 400 may be interposed between the lower housing 611 and the lower cover 612.
- the lower cover 612 may be fixedly coupled to the lower housing 611 by laser welding.
- the lower cover 612 may be a transmission material for laser welding
- the lower housing 611 may be an absorption material for laser welding.
- the lower cover 612 may be fused to each other by the lower housing 611 and the laser welding method at the edge portion.
- the lower cover 612 may be molded by insert injection methods with the lower housing 611 with the lower end plate 300 having the first fastening member 400 fixed therebetween.
- the lower cover 612 may be formed by a molding method.
- the second fastening member 500 may be configured to protrude into the inner space of the lower case 610. Furthermore, since the second fastening member 500 may be coupled to the lower end of the first fastening member 400 embedded in the lower case 610, the second fastening member 500 penetrates through the lower housing 611 to form an interior of the lower housing 611. It can be drawn into space.
- the lower case 610 is mainly made of a polymer material, while the electrical insulation, light weight and moldability, etc. easily secured, the rigidity and sealing properties due to the built-in lower end plate 300 Can be reinforced.
- the fixing state between the first fastening member 400 and the lower end plate 300 is stably maintained, the coupling state between the lower end plate 300 and the cartridge 200 may be stably maintained.
- the parts or space for fastening the bolt or the nut are not required for fastening and fixing the lower end plate 300 and the lower case 610, the space utilization may be improved and the manufacturing processability may be improved.
- the second fastening member 500 protrudes to the top of the upper case 620 so that an upper end thereof may be coupled by the third fastening member 900.
- the third fastening member 900 may be coupled.
- the second fastening member 500 may be formed with a screw thread on the outer peripheral surface of the upper end.
- the third fastening member 900 may be configured in the form of a nut, and a thread may be formed on an inner circumferential surface thereof.
- the second fastening member 500 may be rotatably coupled with the third fastening member 900 by a screw thread.
- the fastening parts and the space between the upper case 620 and the lower case 610 can be reduced or eliminated. have. Therefore, while reducing the manufacturing cost and time of the battery pack, it can be easier to achieve the miniaturization of the battery pack. Further, according to the embodiment in which the lower end plate 300 and the first fastening member 400 are embedded in the lower case 610, the lower case 610 and the upper part are connected through the second fastening member 500. Fixing force between the cases 620 may be further improved.
- the battery pack according to the present invention may further include an upper end plate 700, as shown in FIG. 8.
- the upper end plate 700 is formed in a plate shape, and may be made of a metal material, for example, a steel material.
- the upper end plate 700 may be provided on the stack B of the secondary battery 100 and the cartridge 200. Therefore, the upper end plate 700 covers the upper part of the secondary battery 100 and the cartridge 200, thereby fixing the stack B of the secondary battery 100 and the cartridge 200 and reinforcing rigidity. The surface pressure can be maintained and the laminate can be protected from external impact.
- the upper end plate 700 may be penetrated by the second fastening member 500. That is, the second fastening member 500 may be configured to penetrate the upper end plate 700 together with the fastening hole H2 of the cartridge 200.
- the battery pack according to the present invention may further include an electric plate 800, as shown in FIG. 8.
- the electrical plate 800 is formed in a plate shape, and at least one electrical component of a BMS, a current sensor, a relay, and a fuse may be mounted on a surface thereof, and may be electrically connected to a secondary battery.
- the battery management system refers to a battery management device that generally controls the charge / discharge operation of the battery pack, and such a BMS is a component that is typically included in the battery pack.
- the current sensor is a component for sensing the charge and discharge current of the battery pack
- the relay is a switching component for selectively opening and closing the charge and discharge path through which the charge and discharge current of the battery pack flows.
- the fuse is a component that is provided on the charge / discharge path of the battery pack and is melted when an abnormal situation occurs in the battery pack to block the flow of charge / discharge current.
- the electric plate 800 may be provided on an upper portion of the stack B of the secondary battery 100 and the cartridge 200.
- the electrical plate 800 is positioned on the upper end plate 700. can do. According to this configuration of the present invention, mounting, assembly, replacement, etc. of the electrical equipment can be facilitated.
- the electric plate 800 may be penetrated by the second fastening member 500. That is, the second fastening member 500 may be configured to penetrate the electric plate 800 together with the fastening hole H2 of the cartridge 200, the upper end plate 700, and the like.
- the battery pack according to the present invention may further include a duct (D) for flowing in and out of the refrigerant such as air into the stack (B) of the secondary battery 100 and the cartridge 200.
- the duct (D) is an inlet duct for introducing refrigerant from the outside of the stack (B) of the secondary battery (100) and the cartridge (200), and the stack of the secondary battery (100) and the cartridge (200).
- An outflow duct for outflowing the coolant from the inside of the sieve B to the outside may be provided.
- the inlet duct and the outlet duct may be disposed on opposite sides of each other for smooth flow of the refrigerant.
- each cartridge 200 may include two cooling plates 220 spaced apart from each other by a predetermined distance, and refrigerant may be introduced into the spaced spaces of the cooling plates 220.
- the refrigerant flowing between the spaced spaces of the cooling plate 220 of the cartridge 200 may be discharged to the outside through the outflow duct.
- the battery pack according to the present invention may further include other various components in addition to the above configuration.
- the battery pack according to the present invention may further include a bus bar for transferring charge / discharge power of the cell assembly, a cable for transmitting electrical signals, a power supply terminal for connecting with an external charge / discharge device, and the like. .
- the battery pack according to the present invention can be applied to an automobile such as an electric vehicle or a hybrid vehicle. That is, the vehicle according to the present invention may include a battery pack according to the present invention.
- the vehicle according to the present invention may include a battery pack according to the present invention.
- improvement of energy density of the battery pack, improvement of durability against shock and vibration, light weight, and miniaturization through space utilization are very important factors. Therefore, when the battery pack according to the present invention is applied to such a vehicle, a battery pack that satisfies such various factors may be provided.
- FIG. 11 is a flowchart schematically illustrating a method of manufacturing a battery pack according to an embodiment of the present invention.
- the battery pack manufacturing method includes a first fastening member fixing step S110, a second fastening member coupling step S120, and a cartridge stacking step S130.
- the step S110 is a step of fixing the first fastening member 400 to the lower end plate 300 made of a plate-shaped metal material.
- step S120 the second fastening member 500 is coupled to the first fastening member 400.
- the step S120 may be performed in a form in which the second fastening member 500 formed to extend in one direction is erected perpendicular to the lower end plate 300.
- the step S130 is a step of stacking the cartridge 200 while accommodating the secondary battery 100 in the inner space.
- the step S130 may be performed in a form in which the second fastening member 500 penetrates the fastening hole formed in the cartridge 200.
- the step S110 may be performed by welding the first fastening member 400 to the lower portion of the lower end plate 300.
- the method may further include embedding the lower end plate 300 and the first fastening member 400 inside the lower case 610 before the step S130, in particular, between the steps S120 and S130.
- the lower case 610 may be configured in a form in which an inner space is formed and an upper portion thereof is opened.
- the embedding step may be performed in the form as shown in FIG.
- the secondary battery 100 and the cartridge 200 may further include the step of mounting the upper end plate 700 made of a plate-shaped metal material on the upper body.
- the second fastening member 500 may be configured to penetrate the upper end plate 700.
- the step of mounting the electric plate 800 on which at least one of the electrical equipment of the BMS, the current sensor, the relay and the fuse is mounted on the stack of the secondary battery 100 and the cartridge 200 It may further include.
- the second fastening member 500 may be configured to penetrate the electric plate 800.
- the electrical plate 800 may be disposed on the upper end of the upper end plate 700.
- the step of coupling the upper case 620 to the upper open end of the lower case 610 in a state that the second fastening member 500 is penetrated and protruded to the upper portion of the upper case 620 may further include coupling the third fastening member 900 to an upper end of the second fastening member 500.
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Abstract
Description
Claims (17)
- 전극 조립체, 전해질 및 파우치 외장재를 구비하고 상하 방향으로 배열된 다수의 이차 전지;상기 이차 전지를 내부 공간에 수용하고, 체결홀이 형성되며, 상하 방향으로 상호 적층된 다수의 카트리지;판상의 금속 재질로 구성되고, 이차 전지와 카트리지의 적층체 하부에 위치하는 하부 엔드 플레이트;상기 하부 엔드 플레이트에 고정된 제1 체결 부재; 및상기 하부 엔드 플레이트에 수직하게 세워지도록 길게 연장된 형태로 형성되고, 하단부가 상기 제1 체결 부재에 결합되며, 상기 카트리지의 체결홀을 관통하는 제2 체결 부재를 포함하는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 제1 체결 부재는 너트이고, 상기 제2 체결 부재는 볼트인 것을 특징으로 하는 배터리 팩.
- 제2항에 있어서,상기 제2 체결 부재는, 양단에 나사산이 형성되고, 하단에 형성된 나사산이 상기 제1 체결 부재의 나사산에 결합된 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 제1 체결 부재는, 상기 하부 엔드 플레이트에 용접 고정된 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 하부 엔드 플레이트는, 관통홀이 형성되고,상기 제1 체결 부재는, 상기 하부 엔드 플레이트의 관통홀에 삽입된 삽입부 및 상기 하부 엔드 플레이트의 하부에 위치하여 상기 하부 엔드 플레이트의 하면에 용접되는 용접부를 구비하는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 제2 체결 부재는, 원기둥 형상으로 형성되고, 적어도 일부분에 외주면을 따라 다각형 형태의 돌출부가 구비된 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,상기 이차 전지 및 상기 카트리지를 내부 공간에 수용하는 팩 케이스를 더 포함하는 것을 특징으로 하는 배터리 팩.
- 제7항에 있어서,상기 팩 케이스는, 내부에 빈 공간을 구비하고 상부가 개방된 형태로 구성된 하부 케이스 및 상기 하부 케이스의 상부 개방단에 결합되어 상부 개방단을 밀폐시키는 상부 케이스를 구비하는 것을 특징으로 하는 배터리 팩.
- 제8항에 있어서,상기 하부 엔드 플레이트 및 상기 제1 체결 부재는 상기 하부 케이스의 내부에 매립된 형태로 구성되고, 상기 제2 체결 부재는 상기 하부 케이스의 내부 공간으로 돌출된 형태로 구성된 것을 특징으로 하는 배터리 팩.
- 제8항에 있어서,상기 제2 체결 부재는, 상기 상부 케이스의 상부로 돌출되어, 상단부가 제3 체결 부재에 의해 결합된 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,판상의 금속 재질로 구성되며, 상기 이차 전지와 카트리지의 적층체 상부에 구비되어 상기 이차 전지와 카트리지의 상부를 커버하는 상부 엔드 플레이트를 더 포함하고,상기 제2 체결 부재는, 상기 상부 엔드 플레이트를 관통하는 것을 특징으로 하는 배터리 팩.
- 제1항에 있어서,판상으로 구성되고, 상기 이차 전지와 카트리지의 적층체 상부에 구비되며, 표면에 BMS, 전류센서, 릴레이 및 퓨즈 중 적어도 하나의 전장품이 장착된 전장 플레이트를 더 포함하고,상기 제2 체결 부재는, 상기 전장 플레이트를 관통하는 것을 특징으로 하는 배터리 팩.
- 제1항 내지 제12항 중 어느 한 항에 따른 배터리 팩을 포함하는 자동차.
- 판상의 금속 재질로 구성된 하부 엔드 플레이트에 제1 체결 부재를 고정시키는 단계;일 방향으로 길게 연장된 형태로 형성된 제2 체결 부재가 상기 하부 엔드 플레이트에 수직하게 세워지도록, 상기 제2 체결 부재를 상기 제1 체결 부재에 결합시키는 단계; 및이차 전지를 수용하면서 체결홀에 상기 제2 체결 부재가 관통되도록 상기 카트리지를 적층시키는 단계를 포함하는 것을 특징으로 하는 배터리 팩.
- 제14항에 있어서,상기 제1 체결 부재 고정 단계는, 상기 하부 엔드 플레이트에 상기 제1 체결 부재를 용접하는 방식으로 수행되는 것을 특징으로 하는 배터리 팩.
- 제14항에 있어서,상기 제2 체결 부재 결합 단계와 상기 카트리지 적층 단계 사이에,내부 공간이 형성되고 상부가 개방된 형태로 구성된 하부 케이스의 내부에, 상기 하부 엔드 플레이트 및 상기 제1 체결 부재를 매립시키는 단계를 더 포함하는 것을 특징으로 하는 배터리 팩.
- 제14항에 있어서,상기 카트리지 적층 단계 이후에,제2 체결 부재가 관통된 상태로 상부 케이스를 하부 케이스의 상부 개방단에 결합시키는 단계; 및상기 상부 케이스의 상부로 돌출된 상기 제2 체결 부재의 상단에 제3 체결 부재를 결합시키는 단계를 더 포함하는 것을 특징으로 하는 배터리 팩.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP16786777.9A EP3291330B1 (en) | 2015-04-30 | 2016-04-28 | Battery pack and manufacturing method therefor |
PL16786777T PL3291330T3 (pl) | 2015-04-30 | 2016-04-28 | Pakiet akumulatorowy i sposób jego wytwarzania |
CN201680019338.9A CN107431163B (zh) | 2015-04-30 | 2016-04-28 | 电池组及其制造方法 |
JP2017548058A JP6527953B2 (ja) | 2015-04-30 | 2016-04-28 | バッテリーパック及びその製造方法 |
US15/555,703 US10446812B2 (en) | 2015-04-30 | 2016-04-28 | Battery pack and manufacturing method therefor |
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KR1020150061978A KR101948180B1 (ko) | 2015-04-30 | 2015-04-30 | 배터리 팩 및 그 제조 방법 |
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EP (1) | EP3291330B1 (ko) |
JP (1) | JP6527953B2 (ko) |
KR (1) | KR101948180B1 (ko) |
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PL3291330T3 (pl) | 2019-10-31 |
JP2018508109A (ja) | 2018-03-22 |
EP3291330A1 (en) | 2018-03-07 |
CN107431163B (zh) | 2020-07-14 |
JP6527953B2 (ja) | 2019-06-12 |
US10446812B2 (en) | 2019-10-15 |
KR20160129597A (ko) | 2016-11-09 |
KR101948180B1 (ko) | 2019-02-14 |
CN107431163A (zh) | 2017-12-01 |
US20180053921A1 (en) | 2018-02-22 |
EP3291330A4 (en) | 2018-03-07 |
EP3291330B1 (en) | 2019-06-12 |
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