WO2019221376A1 - Bloc-batterie comprenant un profil de cadre ayant un élément de circuit de refroidissement intégré - Google Patents

Bloc-batterie comprenant un profil de cadre ayant un élément de circuit de refroidissement intégré Download PDF

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Publication number
WO2019221376A1
WO2019221376A1 PCT/KR2019/002726 KR2019002726W WO2019221376A1 WO 2019221376 A1 WO2019221376 A1 WO 2019221376A1 KR 2019002726 W KR2019002726 W KR 2019002726W WO 2019221376 A1 WO2019221376 A1 WO 2019221376A1
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WO
WIPO (PCT)
Prior art keywords
channel
frame profile
frame
refrigerant
battery
Prior art date
Application number
PCT/KR2019/002726
Other languages
English (en)
Korean (ko)
Inventor
뷰세랄프
레타라이너
코즈크미란
회르만토마스
퓨셔마티아스
마르코빅마리오
Original Assignee
삼성에스디아이 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
Priority claimed from EP18184956.3A external-priority patent/EP3584877A1/fr
Application filed by 삼성에스디아이 주식회사 filed Critical 삼성에스디아이 주식회사
Priority to JP2020548642A priority Critical patent/JP7183288B2/ja
Priority to US17/050,339 priority patent/US11949084B2/en
Priority to CN201980032821.4A priority patent/CN112119534A/zh
Publication of WO2019221376A1 publication Critical patent/WO2019221376A1/fr
Priority to US18/596,512 priority patent/US20240213579A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L50/00—Electric propulsion with power supplied within the vehicle
    • B60L50/50—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells
    • B60L50/60—Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
    • B60L50/64—Constructional details of batteries specially adapted for electric vehicles
    • 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
    • H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
    • H01M10/625—Vehicles
    • 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
    • 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
    • H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
    • 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
    • H01M10/6567—Liquids
    • 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
    • H01M50/218—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material
    • H01M50/22—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by the material of the casings or racks
    • H01M50/222—Inorganic material
    • H01M50/224—Metals
    • 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
    • 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
    • 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 pack for automobiles, and more particularly to a battery pack including a frame profile having an integrated refrigerant circuit member. Moreover, this invention relates to the motor vehicle containing this battery pack.
  • Electric vehicles are vehicles driven by electric motors using energy stored in rechargeable batteries.
  • the electric vehicle may be in the form of a hybrid vehicle driven entirely by a battery or driven, for example, by a gasoline generator.
  • the vehicle may also include a combination of an electric motor and a conventional combustion engine.
  • an electric vehicle battery (EVB) or a traction battery (EVB) is a battery used for propulsion of battery electric vehicles (BEV).
  • Electric vehicle batteries are different from start-up, lighting and ignition batteries because they are designed to last for a long time.
  • Rechargeable or secondary cells differ from primary cells in that charging and discharging can be repeated, the latter only providing irreversible conversion of chemicals into electrical energy.
  • Low capacity rechargeable batteries are used as power sources for small electronic devices such as cellular phones, notebook computers and camcorders, while high capacity rechargeable batteries are used as power sources for hybrid cars and the like.
  • the secondary battery includes an electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, a case accommodating the electrode assembly, and an electrode terminal electrically connected to the electrode assembly.
  • the electrolyte solution is injected into the case to enable charge and discharge of the battery through the electrochemical reaction of the positive electrode, the negative electrode and the electrolyte solution.
  • the shape of a cylindrical or rectangular case depends on the use of the battery. Lithium ion (and similar lithium polymer) batteries, widely known for use in laptops and consumer electronics, are most prominent in the latest group of electric vehicles under development.
  • the secondary battery may be used as a battery module formed of a plurality of unit battery cells connected in series and / or in parallel to provide a high energy density, in particular for driving a motor of a hybrid vehicle. That is, the battery module is formed by connecting the electrode terminals of the plurality of unit battery cells in order to implement a high output secondary battery according to the amount of power required.
  • a battery pack is a set of several (preferably the same) battery modules. They can be configured in series, in parallel, or a mixture of both to provide the desired voltage, capacity or power density. Components of a battery pack include individual battery modules and interconnects that provide electrical conductivity therebetween. Manage battery packs by protecting the battery from operating outside the safe operating area, monitoring its status, calculating auxiliary data, reporting the data, controlling its environment, authenticating, or balancing A battery management system (BMS) is provided.
  • BMS battery management system
  • Mechanical integration of the battery module may be accomplished by providing a carrier framewark and placing the battery module over the carrier framework. Fastening of the battery cell or battery module can be accomplished by depressions provided in the framework or by mechanical interconnects such as bolts or screws. Alternatively, the battery module is constrained by securing the side plates on the sides of the carrier framework. In addition, the cover plate may be fixed to the top and bottom of the battery module.
  • the carrier framework of the battery pack is mounted to the vehicle's transport structure. If the battery pack is to be secured to the floor of the vehicle, a mechanical connection can be established at the floor by a bolt, for example, penetrating through the carrier framework of the battery pack.
  • Frameworks are generally made of aluminum or aluminum alloy to lower the total weight of the structure.
  • Battery systems according to the prior art despite any modular construction, generally provide a battery housing to act as an enclosure for sealing the battery system to the surrounding environment and to provide structural protection of the components of the battery system. Include. Housing-type cell systems are typically fully integrated into application environments (eg electric vehicles).
  • a thermal management system is needed to safely use at least one battery module by efficiently generating, dissipating and / or dissipating heat generated from a secondary battery.
  • Thermal heat dissipation / dissipation / dissipation is not performed sufficiently, and a temperature deviation occurs between each battery cell so that at least one battery module cannot generate a desired amount of power.
  • an increase in the internal temperature may cause an internal abnormal reaction, thereby deteriorating the charging and discharging functions of the secondary battery and shortening the lifespan. Therefore, cell cooling is required to efficiently generate, release and dissipate heat generated in a cell.
  • the thermal management system may thus comprise a liquid cooling circuit.
  • Liquid cooling circuits typically include several components, such as a cold plate in thermal contact with a battery module, each being a vehicle cooling circuit, a pipe or hose for conveying liquid refrigerant, and a connection member for connecting the pipe or hose to the cold plate. can do. Accordingly, previous cell system cooling circuits include a large number of single components that can be costly and reliable. In particular, the automation of the manufacturing process may be delayed and defective system components, such as defective battery modules, may require the separation of various parts of the battery system cooling circuit. Therefore, this replacement procedure is burdensome.
  • a vehicle battery pack according to the present invention includes at least one battery module each including a plurality of secondary battery cells, a framework including a first frame profile and a second frame profile disposed opposite to each other, and in thermal contact with the battery module.
  • a liquid cooling circuit comprising one or more cooling plates.
  • Each of the first frame profile and the second frame profile includes an integrated refrigerant structure that is part of the liquid cooling circuit.
  • the battery module includes a pair of module side plates and a pair of front plates constituting a module frame for assembly of the plurality of battery cells, wherein at least one of the The module side plate includes an integral refrigerant structure that is part of the liquid cooling circuit. That is, the cooling medium can be distributed through the cooling plate and / or the module side plate.
  • the battery pack of the present invention includes a metal framework for supporting a battery module.
  • the metal framework consists of a rectangular shape with two opposite sides facing each other, constituting a module frame to provide mechanical integrity of the battery pack.
  • the battery pack further includes a liquid cooling circuit that can be coupled to the vehicle cooling circuit.
  • the liquid cooling circuit of the battery pack includes one or more cooling plates, each module side plate, which is in thermal contact with each of the battery modules, that is, capable of cooling or heating the battery module if necessary.
  • the cooling plate may form one layer (in whole or in part) of the battery pack, and the battery module may be mounted thereon.
  • each frame profile comprises an integrated refrigerant (distribution / collection) structure.
  • the rigid frame profile is used as a refrigerant channel and comprises an integral hollow designed to distribute liquid refrigerant to the cooling plate or to collect liquid refrigerant in the cooling plate. That is, part of the cooling circuit and part of the framework are integrated into common components.
  • the common component is two frame profiles comprising an integral refrigerant structure.
  • the integration consists of one piece or is integrated directly into the frame profile instead of being mounted or attached to the frame profile.
  • the other parts of the unitary cooling structure and the frame profile for example, cannot be separated from each other.
  • Advanced parts of the integrated cooling circuit provide excellent robustness without increasing the overall weight of the battery pack.
  • its manufacturing process is greatly simplified since the number of component parts is significantly reduced.
  • the unitary refrigerant structure includes a first channel for the refrigerant passage extending in the longitudinal direction of the first frame profile and one or more connection points in fluid communication with each connection point of the cooling plate and / or the module side plate.
  • the refrigerant structure can be simply set in the frame profile by configuring a refrigerant channel extending in the longitudinal direction of the frame profile, for example lying parallel to the bottom surface of the frame profile. In a predetermined position outside the frame profile, a connection point is provided which engages the connection point of each of the cooling plate and / or the module side plate.
  • the refrigerant distribution / collection structure may be immediately adjacent to the cooling plate and / or the module side plate in addition to the gasket that may be disposed between the connection points of the two components.
  • the integrated refrigerant distribution structure may comprise one or more connection points for the vehicle refrigerant circuit in the narrow side of the frame profile.
  • the location of the inlet / outlet connection points is preferably such that the battery pack is easily accessible during the vehicle mounting process.
  • the unitary refrigerant distribution structure of the first and / or second frame profile extends along the longitudinal direction of the first and second frame profiles and is in fluid communication with the first channel through the component section. It further comprises a second channel.
  • the second channel basically extends parallel to the first channel but is not in fluid communication with the connection point with respect to the cooling plate and / or the module side plate. That is, the provision of the second channel may adopt a point for introducing the refrigerant into the first channel and a point for flowing the refrigerant from the first channel to the second channel.
  • the overall cooling of the battery module can be optimized.
  • the construction section is located up to or within 10 cm of the geometric mean of the position of the connection point in the longitudinal extension of the frame profile.
  • the integrated refrigerant structure of each of the first and second frame profiles includes: a first channel for a refrigerant passage extending in a length direction of the first frame profile; One or more connection points in fluid communication with the first channel and respective connection points of the cooling plate and / or the module side plate, and a refrigerant passage extending in the longitudinal direction of the first frame profile and not in fluid communication with the first channel.
  • the second embodiment can be used to independently set two refrigerant flows through the cooling plate in the opposite direction. This allows cooling to be the same in all relevant parts of the battery pack and prevents overheating of a single battery module.
  • it comprises one or more connection points of the first and second channels aligned with the bottom surface of the first frame profile and one or more connection points of the cooling plate aligned with the top surface of the cooling plate.
  • the battery pack will be mounted to the support structure of the vehicle.
  • the vehicle body may be, for example, a vehicle body of a body frame, a self-supporting vehicle body or a space frame type.
  • the body is composed of body parts and is configured for load reception (power suction) during normal operation and in collision situations.
  • the battery pack is fixed to the bottom of the vehicle support structure. That is, the upper side of the frame profile will face the vehicle support structure.
  • the concept of the invention which provides a connection point on the lower side of the frame profile, has the advantage that in the event of a fault the cooling plates can be easily removed, for example a single battery module can be replaced without removing the entire battery pack. .
  • the cooling plate is supported by the arrester member.
  • the precise position of the connection point of the frame profile and the corresponding cooling plate connection point can always be ensured.
  • the first and second frame profiles are preferably made of (extruded) aluminum or aluminum alloy.
  • Extruded aluminum or aluminum alloys exhibit sufficient thermal conductivity and mechanical properties.
  • aluminum has a low weight and low manufacturing cost of aluminum.
  • all other parts of the integral refrigerant structure and the frame profile are made of the same material.
  • the battery module includes a pair of module side plates and a pair of module front plates for constructing a module frame for assembling a plurality of battery cells.
  • At least one module side plate includes an integral refrigerant structure that is part of a liquid refrigerant circuit.
  • the side plates of the module frame thus also comprise an integral refrigerant structure connected to the distribution of the cooling fluid and the liquid cooling circuit. Just cooling the battery cell on the bottom surface greatly improves the temperature distribution in the electrical performance of the battery cell.
  • the liquid cooling circuit of the vehicle can be subdivided, for example, into a first part comprising the cooling plate described above and a second part comprising the module side plate. If the cooling plate is damaged by mechanical shock and leakage of cooling fluid occurs, there will still be separate cooling by the module side plates.
  • the integral refrigerant structure of the module side plate includes a first channel for the refrigerant passage extending in the longitudinal direction of the module side plate and a connection point in fluid communication with each connection point of the integrated refrigerant structure of the first and second frame profiles. good.
  • the integrated refrigerant structure can simply be set in the side plate by defining a refrigerant channel which extends in parallel with the lower side of the side plate, for example, along the longitudinal extension of the side plate. Predefined positions on the two narrow sides of the side plates are provided with connection points for connecting to each connection point of the frame profile.
  • the refrigerant distribution / collection structure may be directly adjacent to the side frame in addition to the gasket, and the gasket may be located between the connection points of both parts.
  • the integral refrigerant structure of the module side plate further includes a second channel for the refrigerant passage extending in the longitudinal direction of the module side plate and a connection point in fluid communication with each connection point of the integral refrigerant structure of the first and second frame profiles. do.
  • the second channel basically extends parallel to the first channel of the module side plate, but need not be in fluid communication in the same way.
  • the first channel of the module side plate may be in fluid communication with the first channel of the first and second frame profiles
  • the second channel of the module side plate is in fluid communication with the second channel of the first and second frame profiles.
  • the liquid cooling circuit of the vehicle may for example be subdivided into a first part comprising a first channel of the module side plate and a second part comprising a second channel of the module side plate. If one of these parts is damaged by mechanical shock and leakage of cooling fluid occurs, there will still be separate cooling by the remaining parts.
  • the module side plate may be made of the same material as the first and second frame profiles.
  • a vehicle comprising a battery pack as defined and described above.
  • the battery pack can be connected to the vehicle cooling circuit at the connection point provided on the narrow side of the frame profile as already described above.
  • the battery pack of the present invention can reduce the number of parts as well as the effort of assembly.
  • FIG. 1 is a view illustrating a vehicle including a battery pack.
  • FIG. 2 is an exploded perspective view illustrating a general battery module.
  • FIG. 3 is a perspective view illustrating a framework for accommodating a plurality of battery modules according to an embodiment of the present invention.
  • FIG. 4 is a plan view illustrating the framework of FIG. 3.
  • FIG. 5 is a cross-sectional view of the first frame profile taken along the line A-A of FIG.
  • FIG. 6 is an exploded perspective view of the framework taken along the line A-A of FIG.
  • FIG. 7 is a perspective view illustrating a refrigerant flow according to the first embodiment.
  • FIG. 8 is a perspective view illustrating a refrigerant flow according to a second embodiment.
  • FIG. 9 is a perspective view illustrating a refrigerant flow according to a third embodiment.
  • FIG. 10 is a perspective view illustrating a refrigerant flow according to a fourth embodiment.
  • FIG. 11 is a plan view illustrating the framework of FIG. 10.
  • FIG. 12 is a cross-sectional view of the first frame profile along the line A-A of FIG.
  • FIG. 13 is an exploded perspective view of the framework taken along the line C-C of FIG.
  • FIG. 14 is an exploded perspective view of the framework taken along the line B-B of FIG.
  • FIG. 15 is an exploded perspective view of a battery module according to another embodiment.
  • FIG. 16 is a perspective view of the battery module shown in FIG. 15.
  • 17 is a partially enlarged view of a portion of the battery module of FIG. 15.
  • FIG. 18 is an exploded view illustrating a portion of a frame including a frame profile of another embodiment of the present invention.
  • 19 is a cross-sectional view of the first frame profile along the line A-A of FIG.
  • top and bottom are defined along the z axis.
  • the top cover is located above the z axis and the bottom cover below it.
  • the size of components may be exaggerated for clarity.
  • the size or thickness of each component may be arbitrarily presented for purposes of explanation, and thus embodiments of the present invention should not be construed as limited thereto.
  • first and second are used to describe various elements, it will be understood that these elements should not be limited by these terms. This term is only used to distinguish one element from another.
  • the first element may be named the second element, and likewise, the second element may be named the first element without departing from the scope of the present invention.
  • battery packs are usually located on the underside of the vehicle because they require a large amount of space.
  • the battery pack may be secured to the bottom of the vehicle carrying structure.
  • Battery packs according to the prior art usually include a battery housing that acts as an enclosure for sealing the battery pack to the external environment and structurally protects the components of the battery pack.
  • Housing-type battery packs are typically fully mounted in an application environment, such as an electric vehicle.
  • the battery pack may comprise attachment means which may be structurally integrated into the vehicle carrying structure and configured to be connected to the vehicle body for structural integration. That is, the vehicle body portion may include a battery system carrier and may be integrated directly into the vehicle body instead of being mounted or attached to the vehicle body.
  • the present invention can be realized in any of the variants described above. 1 schematically shows a vehicle including a battery pack 10 mounted to the bottom of a transport structure of a vehicle 300.
  • the battery pack 10 of the present invention may include one or more battery modules 100.
  • a plurality of battery cells 80 having a substantially planar shape are stacked and arranged with the terminals 21 and 22 facing upwards.
  • Insulation foils 69 are disposed between neighboring battery cells 80 to avoid unwanted electrical contact between individual battery cells 80.
  • a pair of module front plates 63 are provided at both ends of the stack.
  • the module front plate 63 is mechanically coupled to a pair of module side plates 64 facing the plurality of narrow sidewalls of the battery cell 80.
  • a pair of upper and lower plates 60 are connected to the module front plate 63 and the module side plate 64.
  • the module front plate 63, the module side plate 64, and the module upper and lower plates 60 are intended to assemble a plurality of aligned battery cells 80, that is, mechanical defects on the battery module 100. Configure the module frame to provide. As shown in FIG. 2, the battery cells 80 are electrically connected using a cell connection unit (CCU) 67 as electrical interconnects.
  • the cell connection unit 67 includes a plurality of conductive members (not shown) connected to the anode and cathode module terminals 65 and 66 and the cathode and anode terminals 21 and 22 of the secondary battery cell 80, respectively.
  • the framework 200 includes a first frame profile 210 and a second frame profile 220.
  • the first frame profile 210 and the second frame profile 220 are disposed on the longitudinal (or long side) side of the rectangular framework 200.
  • the other pair of frame profiles 240 and 242 are disposed on the short side (or width direction) side of the framework 200 to connect the first and second frame profiles 210 and 220.
  • the plurality of crossbars 250 divides the interior space surrounded by the frame profiles 210, 220, 240, 242 into seven sections 260. Each of these sections 260 can accommodate up to eight battery modules 100 (not shown in FIG. 3).
  • at least the first frame profile 210 and the second frame profile 220 are made of extruded aluminum.
  • the frame profiles 210 and 220 and the crossbars 250 may be made of the same material.
  • the battery cell 80 generates a large amount of heat during charging / discharging. The generated heat accumulates in the battery cell 80 to promote deterioration of the battery cell 80.
  • the battery pack 10 further includes a liquid refrigerant circuit.
  • the liquid refrigerant circuit of the battery pack 10 includes a cooling plate 270 in thermal contact with the battery module 100.
  • a cooling plate 270 in thermal contact with the battery module 100.
  • Cooling plate 270 may be made of a metallic material, such as extruded aluminum, such as used in the manufacture of frame profiles 210, 220, 240, 242 and crossbars 250.
  • a passage for the liquid refrigerant is provided inside the cooling plate 270.
  • FIG. 5 is a cross-sectional view of the first frame profile 210 along the line A-A of FIG.
  • FIG. 6 is an exploded perspective view of the first frame profile 210 and the cooling plate 270 along the line A-A of FIG. 4.
  • the first frame profile 210 basically has a top surface 211 facing the body structure of the vehicle in the final assembled state, a bottom surface 212 facing the cooling plate 270 (see FIG. 6), and a pair of It has a rectangular shape including a longitudinal section (or longitudinal surfaces 213, 214).
  • the first frame profile 210 is arranged with the first channel 215 both arranged proximate to the bottom surface 212 and extending parallel to the longitudinal direction of the first frame profile 210.
  • the second channel 216 is included.
  • the second channel 216 is arranged at the center of the lower surface 212, while the first channel 215 is arranged closer to the longitudinal section 214 facing the interior space of the framework 200. do.
  • the first channel 215 is configured to be in fluid communication with the connection point 217.
  • the configuration through which the fluid passes can be made by a vertical drill hole extending from the bottom surface 212 into the first channel 215.
  • the first channel 215, the second channel 216 and the connection point 217 are components of the integrated refrigerant structure that are part of the liquid refrigerant circuit of the battery pack 10.
  • An arrester member 218 is also provided on the bottom surface 212 of the first frame profile 210.
  • the arrester member 218 extends along the longitudinal direction of the first frame profile 210 below the center of the first frame profile 210, that is, the second channel 216.
  • the cooling plate 270 supports the arrester member 218.
  • the refrigerant structure is completely embedded in the first frame profile 210 to form a portion integral thereto. That is, all the components shown in the cross-sectional state in FIGS. 5 and 6 are made of a single piece of extruded aluminum. More specifically, the refrigerant structure portion is not mounted as a single member to the first frame profile 210.
  • the cooling plate 270 includes a passage 271 for the coolant.
  • On the top surface 272 of the cooling plate 270 is provided another connection point 273 corresponding to the size and position of the connection point 217 of the first frame profile 210. Fluid connection tightness of the cooling plate 270 and the first frame profile 210 is ensured by a gasket 280 provided between the corresponding connection point 217 and the other connection point 273.
  • the second frame profile 220 may comprise a very identical structure, that is, a similar integral refrigerant structure with the first frame profile 210.
  • the cooling plate 270 will have a connection point provided on the side facing the second frame profile 220. That is, the integrated refrigerant structure of the second frame profile 220 also includes a first channel for the refrigerant passage extending in the longitudinal direction of the second frame profile 220, and a connection point between the first channel and the cooling plate 270 is fluid. It will include a connection point that allows for communication.
  • FIG. 7 to 10 are diagrams for explaining the refrigerant flow in accordance with four embodiments.
  • the integrated refrigerant distribution structure of the first frame profile 210 includes a connection point 221 for a vehicle refrigerant circuit (not shown).
  • the connection point 221 is provided on the short side of the first frame profile 210.
  • the second frame profile 220 also includes a connection point 222 aligned on the same side of the framework 200 as the connection point 221 of the first frame profile 210.
  • the connection point 221 represents an inlet through which the liquid refrigerant is supplied to the refrigerant circuit of the battery pack 10, and the connection point 222 is an outlet. Dotted lines in the figure will demonstrate the flow of refrigerant flowing through the first and second frame profiles 210, 220 and the cooling plate 270.
  • connection point 221 is in direct fluid communication with the first channel 215 and the connection point 222 is in direct fashion with the first channel embedded in the second frame profile 220 in a similar manner.
  • the refrigerant is distributed to the seven cooling plates 270 by the integrated refrigerant structure of the first frame profile 210.
  • the refrigerant passing through the cooling plate 270 is collected by the unitary refrigerant structure of the second frame profile 220.
  • a refrigerant flow according to a second embodiment is shown in FIG. 8.
  • the second embodiment is the same as the first embodiment of FIG.
  • the connection point 223 is used as the inlet of the first frame profile 210.2 and flows directly into the second channel 216.
  • the connection point 224 is in fluid communication directly with the second channel of the second frame profile 220.2, which is used as the outlet of the liquid refrigerant.
  • the second channel 216 of the first frame profile 210.2 is in fluid communication with the first channel 215 through the component section (not shown in the figure but represented by the refrigerant flow).
  • the component section here is arranged up to or within 10 cm from the geometric mean of the position of the connection point 217 in the longitudinal extension of both frame profiles 210.2, 220.2. Because of this, the refrigerant temperature distribution for the longitudinal extension of framework 200.2 may be more identical than in the embodiment shown in FIG.
  • a refrigerant flow according to a third embodiment is shown in FIG. Basically, the third embodiment is the same as the first embodiment of FIG.
  • the refrigerant flows into the first channel 215 of the first frame profile 210.3 through the connection point 221 and is collected by the first channel of the second frame profile 220.3 through the cooling plate 270.
  • the first channel of the second frame profile 220.3 is in fluid communication with the second channel via a component section arranged on the longitudinal side of the framework 200.3 opposite the connection point 221.
  • the connection point 224 in fluid communication with the second channel is represented by the refrigerant outlet of the cooling circuit of the battery pack 10.
  • the unitary refrigerant structure of the first frame profile 201.4 and the second frame profile 220.4 is a first channel extending in the longitudinal direction of the frame profile for the refrigerant passage, each connection point of the cooling plate 270.1 and the first Connection points 221 and 222 in fluid communication with the channel, a second channel extending longitudinally of the first and second frame profiles 210.4 and 220.4 for the refrigerant passage and not in fluid communication with the first channel, and cooling with the second channel.
  • Connection points 223 and 224 in fluid communication with each connection point of plate 270.1.
  • the fourth embodiment differs from the other embodiments described above in that there are two independent refrigerant circuits in the battery pack 10 that can be driven in opposite directions (see the refrigerant flows indicated by dashed lines and solid lines in FIG. 10).
  • the coolant temperature can be further equalized in each region of the framework 200.4.
  • the remaining cooling circuit can still prevent overheating of the battery pack.
  • FIG. 11 is a plan view of the framework of FIG. 10, and FIG. 12 is a cross-sectional view of the first frame profile 210.4 along the line A-A of FIG. 10.
  • FIG. 13 is an exploded perspective view of the framework along the line C-C of FIG. 11, and
  • FIG. 14 is an exploded perspective view of the framework along the line B-B of FIG. 11.
  • the first frame profile 210.4 basically has an upper surface 211 facing the body structure of the vehicle in the final assembled state, and a lower surface 212 facing the cooling plate 270.1. And a square shape including a pair of longitudinal sections (or longitudinal surfaces 213 and 214).
  • the first frame profile 210.4 is arranged in close proximity to the lower surface 212 and extends the first channel 215 and the second channel 216 extending parallel to the longitudinal direction of the first frame profile 210.4. Include.
  • the second channel 216 is arranged at the center of the lower surface 212, while the first channel 215 is arranged closer to the longitudinal section 214 facing the interior space of the framework 200.4.
  • An arrester member 218. 1 is provided on the lower surface 212 of the first frame profile 210.4.
  • the arrester member 218. 1 extends in the longitudinal direction of the first frame profile 210.4.
  • the arrester member 218.1 is disposed close to the longitudinal section 213 on the side facing away from the internal space of the framework 200.4.
  • the refrigerant structure is completely embedded in the first frame profile 210.4 to form a portion integral with it. That is, all of the components shown in cross-section in FIGS. 12 and 13 are made of a single piece of extruded aluminum. More specifically, the refrigerant structure portion is not mounted as a single member in the first frame profile 210.4.
  • FIG. 13 is an exploded perspective view of the framework taken along the line C-C of FIG.
  • the second channel 216 is in fluid communication with the connection point 217.1.
  • the configuration through which the fluid passes can be made by a vertical drill hole extending from the bottom surface 212 into the second channel 216.
  • the upper surface of the cooling plate 270.1 is provided with a first connection point 273.1 corresponding to the size and position of the connection point 217.1 of the first frame profile 210.4.
  • the first channel 215 is in fluid communication with the connection point 217.2.
  • the configuration through which the fluid passes can be made by a vertical drill hole extending from the bottom surface 212 into the first channel 215.
  • a second connection point 273.2 corresponding to the size and position of the connection point 217.2 of the first frame profile 210.4.
  • the second frame profile 220.4 may comprise a structure that is very identical to the first frame profile 210.4, that is, a similar integral refrigerant structure.
  • the cooling plate 270.1 will have first and second connection points 217.1 and 217.2 provided on the side facing the second frame profile 220.4.
  • the first connection point 217.1 provided on the side facing the cooling plate 270.1 is in fluid communication by a first refrigerant passage 271.1.
  • the second connection point 217.2 of the cooling plate 270.1 is in fluid communication by the second refrigerant passage 271.2.
  • the first and second refrigerant passages 271.1 and 271.2 are separated from each other. As a result of this, two independent refrigerant circuits are created which can be driven in opposite directions.
  • battery module 100.1 illustrates a battery module 100.1 according to another embodiment of the present invention.
  • the basic configuration of the battery module 100.1 is the same as the battery module 100 described above with reference to FIG. 2.
  • battery module 100.1 includes two stacked stacks of battery cells 80.
  • the cell stack is surrounded by four sides by a module front plate 631 and a module side plate 661.
  • Intermediate plate 68 separates both cell stacks and improves fixation of battery cells 80.
  • the cell stack is typically compressed with any compressive force and secured through the side plate 661.
  • the assembly of the module front plate 631 and the module side plate 661 is called a module frame.
  • the joining of the module frames can be made, for example, by welding.
  • the thermal connection of the module side plate 661 to the battery cell 80 may be made by thermal pads, thermal gap fillers, thermal adhesives or direct contact with each other.
  • the adhesive or gap filler may be injected after the module frame is secured around the cell stack.
  • FIG. 17 is an enlarged partial perspective view illustrating one end of the battery module 100.1 of FIG. 15.
  • Both module side plates 661 are made by aluminum extrusion profiles in which the first cooling channel 290 and the second cooling channel 291 are made during the extrusion process.
  • Connection points 294.1 and 294.2 of the first and second cooling channels 290 and 291 are provided on the narrow side of the module side plate 661.
  • the first and second cooling channels 290 and 291 extend in parallel in the longitudinal direction of the module side plate 664. That is, the first and second cooling channels 290 and 291 may be used by separate cooling circuits, at least not in fluid communication with the module side plate 664.
  • Cooling liquid, refrigerant, or air may flow through the first and second cooling channels 290 and 291 to cool the battery cell 80 from one or both sides of the battery module 100.1.
  • This refrigerant structure is completely embedded in the module side plate (64.1) to form an integral part therewith. In other words, all the components are made of a single part of extruded aluminum. Above all, it can be said that the refrigerant structure part is not installed as a separate single part in the module side plate 661.
  • FIG. 18 is an exploded perspective view showing a part of a frame including the frame profile 210.5, which is an exploded perspective view along the line C-C of FIG.
  • the frame profile 210.5 may be used in combination with the battery module 100.1 described above.
  • the frame profile 210.5 is similar to the frame profile 210.4 shown in FIG. 13 except that the connection points 292.1, 292.2, 292.3, 292.4 are provided at the end faces of the frame profile 210.5 facing inward of the frame.
  • connection points 292.1, 292.2, 292.3, 292.4 establish a fluid connection to the first and second cooling channels 290, 291 embedded in the module side plate 661 of the battery module 100.1 shown in Figs. 15-17. Can be used.
  • the lower connection point 294.2 of the first cooling channel 290 lies against the lower connection point 292.2 of the frame profile 210.5
  • the second cooling channel 291 Top connection point 294.1 lies against top connection point 292.1 of frame profile 210.5.
  • the fluid connection tightness of the module side plate 661 and the frame profile 210.5 is ensured by a gasket provided between the corresponding connection points.
  • the second frame profile 220 may also have the same structure as the first frame profile 210.5. That is, the second frame profile 220 is similar to the first frame profile 210.5, the integral refrigerant structure having connection points 292.1, 292.2, 292.3, 292.4 for connecting to the module side plate 661 at its longitudinal section. It includes.
  • connection point 292.4 is a battery module 100.1 in which the first channel 215.1 of the first frame profile 210.5 and the first channel 290 of the module side plate 661 establish fluid communication.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)

Abstract

La présente invention concerne un bloc-batterie comprenant un profil de cadre ayant un élément de circuit de refroidissement intégré. Le bloc-batterie comprend : un ou plusieurs modules de batterie comprenant chacun une pluralité d'éléments de batterie rechargeable ; un cadre comprenant un premier profil de cadre et un second profil de cadre qui sont agencés de façon à se faire face l'un l'autre ; et un circuit de refroidissement de liquide comprenant une ou plusieurs plaques de refroidissement établissant un contact thermique avec les modules de batterie.
PCT/KR2019/002726 2018-05-16 2019-03-08 Bloc-batterie comprenant un profil de cadre ayant un élément de circuit de refroidissement intégré WO2019221376A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2020548642A JP7183288B2 (ja) 2018-05-16 2019-03-08 一体型冷媒回路部材を有するフレームプロファイルを含む電池パック
US17/050,339 US11949084B2 (en) 2018-05-16 2019-03-08 Battery pack comprising frame profile having integral refrigerant circuit member
CN201980032821.4A CN112119534A (zh) 2018-05-16 2019-03-08 包括具有一体制冷剂回路构件的框架型材的电池组
US18/596,512 US20240213579A1 (en) 2018-05-16 2024-03-05 Battery pack comprising frame profile having integral refrigerant circuit member

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
EP18172518 2018-05-16
EP18172518.5 2018-05-16
EP18184956.3 2018-07-23
EP18184956.3A EP3584877A1 (fr) 2018-05-16 2018-07-23 Bloc batterie comprenant un profilé de cadre avec des éléments de circuit de refroidissement intégrés
KR1020190026496A KR102416527B1 (ko) 2018-05-16 2019-03-07 일체형 냉매 회로 부재를 갖는 프레임 프로파일을 포함한 전지 팩
KR10-2019-0026496 2019-03-07

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US17/050,339 A-371-Of-International US11949084B2 (en) 2018-05-16 2019-03-08 Battery pack comprising frame profile having integral refrigerant circuit member
US18/596,512 Division US20240213579A1 (en) 2018-05-16 2024-03-05 Battery pack comprising frame profile having integral refrigerant circuit member

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WO2021221416A1 (fr) * 2020-04-29 2021-11-04 주식회사 엘지에너지솔루션 Bloc-batterie, dispositif électronique le comprenant, et véhicule
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CN115066788A (zh) * 2020-06-08 2022-09-16 株式会社Lg新能源 具有堆叠成多层的电池模块的电池组
WO2022210515A1 (fr) * 2021-03-29 2022-10-06 いすゞ自動車株式会社 Unité batterie
JP2022553133A (ja) * 2020-09-25 2022-12-22 エルジー エナジー ソリューション リミテッド 電池モジュール、電池パックおよびこれを含む自動車
JP2023510899A (ja) * 2020-08-14 2023-03-15 エルジー エナジー ソリューション リミテッド バッテリーパック、それを含む自動車
JP2023512819A (ja) * 2020-06-02 2023-03-29 エルジー エナジー ソリューション リミテッド パックケースに冷媒循環路を備えた電池パック
EP4254593A1 (fr) * 2022-03-31 2023-10-04 Automotive Cells Company SE Batterie et procédé d assemblage associé
JP7566287B2 (ja) 2019-11-22 2024-10-15 エルジー エナジー ソリューション リミテッド 電池モジュールおよびこれを含む電池パック

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WO2020192196A1 (fr) * 2019-03-25 2020-10-01 华为技术有限公司 Module de batterie et bloc-batterie d'alimentation
JP7566287B2 (ja) 2019-11-22 2024-10-15 エルジー エナジー ソリューション リミテッド 電池モジュールおよびこれを含む電池パック
JP7411076B2 (ja) 2020-04-29 2024-01-10 エルジー エナジー ソリューション リミテッド バッテリーパック、それを含む電子デバイス、及び自動車
JP7266749B2 (ja) 2020-04-29 2023-04-28 エルジー エナジー ソリューション リミテッド 冷却流路構造の効率化及び安定性を向上させたバッテリーパック及びそれを含む自動車
EP4024572A4 (fr) * 2020-04-29 2024-08-14 Lg Energy Solution Ltd Bloc-batterie à rendement et stabilité améliorés de structure de canaux de fluide de refroidissement et véhicule le comprenant
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US20220348068A1 (en) * 2020-04-29 2022-11-03 Lg Energy Solution, Ltd. Battery pack with efficient cooling path structure and improved safety and vehicle including the same
JP2022549674A (ja) * 2020-04-29 2022-11-28 エルジー エナジー ソリューション リミテッド バッテリーパック、それを含む電子デバイス、及び自動車
EP4037070A4 (fr) * 2020-04-29 2022-12-14 LG Energy Solution, Ltd. Bloc-batterie, dispositif électronique le comprenant, et véhicule
WO2021221416A1 (fr) * 2020-04-29 2021-11-04 주식회사 엘지에너지솔루션 Bloc-batterie, dispositif électronique le comprenant, et véhicule
CN114342156B (zh) * 2020-04-29 2023-06-23 株式会社Lg新能源 具有有效的冷却路径结构和提高的稳定性的电池组和包括该电池组的车辆
JP7362051B2 (ja) 2020-06-02 2023-10-17 エルジー エナジー ソリューション リミテッド パックケースに冷媒循環路を備えた電池パック
JP2023512819A (ja) * 2020-06-02 2023-03-29 エルジー エナジー ソリューション リミテッド パックケースに冷媒循環路を備えた電池パック
CN115066788A (zh) * 2020-06-08 2022-09-16 株式会社Lg新能源 具有堆叠成多层的电池模块的电池组
JP2023515018A (ja) * 2020-06-08 2023-04-12 エルジー エナジー ソリューション リミテッド 電池モジュールが多段に積層された電池パック
JP2023510899A (ja) * 2020-08-14 2023-03-15 エルジー エナジー ソリューション リミテッド バッテリーパック、それを含む自動車
JP7553574B2 (ja) 2020-08-14 2024-09-18 エルジー エナジー ソリューション リミテッド バッテリーパック、それを含む自動車
JP2022553133A (ja) * 2020-09-25 2022-12-22 エルジー エナジー ソリューション リミテッド 電池モジュール、電池パックおよびこれを含む自動車
JP7418897B2 (ja) 2020-09-25 2024-01-22 エルジー エナジー ソリューション リミテッド 電池モジュール、電池パックおよびこれを含む自動車
CN114696028A (zh) * 2020-12-31 2022-07-01 三星Sdi株式会社 供电装置
US20220209329A1 (en) * 2020-12-31 2022-06-30 Samsung Sdi Co., Ltd. Power supply device
WO2022210515A1 (fr) * 2021-03-29 2022-10-06 いすゞ自動車株式会社 Unité batterie
WO2023187042A1 (fr) * 2022-03-31 2023-10-05 Automotive Cells Company Se Batterie et procédé d'assemblage associé
EP4254593A1 (fr) * 2022-03-31 2023-10-04 Automotive Cells Company SE Batterie et procédé d assemblage associé

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