WO2020252846A1 - 动力电池包和车辆 - Google Patents
动力电池包和车辆 Download PDFInfo
- Publication number
- WO2020252846A1 WO2020252846A1 PCT/CN2019/097435 CN2019097435W WO2020252846A1 WO 2020252846 A1 WO2020252846 A1 WO 2020252846A1 CN 2019097435 W CN2019097435 W CN 2019097435W WO 2020252846 A1 WO2020252846 A1 WO 2020252846A1
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- WO
- WIPO (PCT)
- Prior art keywords
- battery pack
- power battery
- heat exchange
- plate
- bottom plate
- Prior art date
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- 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
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- 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
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- 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
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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- 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
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- 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
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- 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
- H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
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- 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
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- 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
- H01M10/6568—Liquids characterised by flow circuits, e.g. loops, located externally to the cells or cell casings
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- 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
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- 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
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- 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
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- 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
- H01M50/242—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 against vibrations, collision impact or swelling
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- 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
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- 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
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- 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
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- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- This application belongs to the technical field of power battery manufacturing, and specifically relates to a power battery pack and a vehicle having the power battery pack.
- the single cells are first assembled into modules, and the single cells are fixed by the module frame, which makes the power battery pack installation space utilization low, reduces the number of single cells and the overall capacity of the power battery pack, and affects Endurance.
- this application proposes a power battery pack, which includes a tray and an upper cover, the tray includes a side frame and a bottom plate, the upper cover and the bottom plate are respectively connected to the upper and lower ends of the side frame, To define a battery accommodating cavity; a plurality of single batteries, a plurality of the single batteries are installed in the battery accommodating cavity, a surface of the single battery and the upper cover are connected by structural adhesive bonding , The other opposite surface of the single battery and the bottom plate are connected by a thermally conductive structural glue.
- the power battery pack of the present application reduces the use of the module frame, improves the space utilization rate, reduces the parts of the battery pack, saves the process flow, improves the assembly efficiency, and reduces the manufacturing cost while ensuring sufficient structural strength.
- the application also proposes a vehicle with the above-mentioned power battery pack.
- Figure 1 is a top view of a power battery pack according to an embodiment of the present application.
- Figure 2 is a cross-sectional view at A-A in Figure 1;
- Figure 3 is a partial enlarged view of B in Figure 2;
- Figure 4 is an exploded view of a power battery pack according to an embodiment of the present application.
- FIG. 5 is a schematic diagram of the arrangement structure of the single cells in the power battery pack according to an embodiment of the present application.
- FIG. 6 is a schematic structural diagram of the single cells in the power battery pack arranged on the tray according to an embodiment of the present application;
- Fig. 7 is a schematic structural diagram of a vehicle according to an embodiment of the present application.
- the front-rear direction in this application is the longitudinal direction of the vehicle 1000, that is, the X direction; the left-right direction is the lateral direction of the vehicle 1000, that is, the Y direction; and the vertical direction is the vertical direction of the vehicle 1000, that is, the Z direction.
- the power battery pack 100 according to an embodiment of the present application will be described below with reference to FIGS. 1 to 4.
- the battery pack housing includes: a tray 110, an upper cover 120, and a plurality of single batteries 150.
- the tray 110 includes a side frame 111 and a bottom plate 112.
- the side frame 111 is a square frame.
- the bottom plate 112 is fixedly connected to the bottom surface of the side frame 111.
- the bottom surface can be connected by welding to form the load-bearing structure of the whole package, while ensuring the sealing performance of the whole package.
- the bottom plate 112 also has heat equalization performance, which facilitates heat exchange between the inside of the power battery pack body and the outside through the heat exchange plate.
- the upper cover 120 and the bottom plate 112 are respectively connected to the upper and lower ends of the side frame 111 to define a battery accommodating cavity, and a plurality of single batteries 150 are installed in the battery accommodating cavity.
- the upper cover 120 is connected to the upper end of the side frame 111, and the upper cover 120 and the side frame 111 may be connected by at least one of a threaded connection member and glue.
- glue is sandwiched between the upper end of the side frame 111 and the lower surface of the upper cover 120 to achieve sealing and preliminary connection.
- the threaded connection is provided on the outer ring of the glue to further strengthen the tray 110 and the upper cover. 120 connections.
- One surface of the single battery 150 and the upper cover 120 are bonded and connected by a structural glue 161, and the other opposite surface of the single battery 150 is bonded and connected with the bottom plate 112 by a thermally conductive structural glue 160.
- a plurality of single batteries 150 are directly installed in the battery accommodating cavity, and there is no need to assemble the single cells into modules first, which reduces the use of the module frame and increases the size of the shell
- the number of single batteries 150 installed in the battery accommodating cavity is increased, which increases the overall capacity of the power battery pack 100 and improves the endurance.
- the single cells need to be assembled into modules first, and the shapes of the modules are irregular, they cannot be tightly arranged in the power battery pack shell.
- the solution of this application directly fixes the single cells 150 Installed in the accommodating space defined by the tray 110 and the upper cover 120, the single batteries 150 can be closely arranged in the battery accommodating cavity, which further increases the installation space of the single batteries 150 in the battery accommodating cavity and increases the entire power battery pack The number of single cells 150.
- the use of the module frame is reduced, the number of components and the assembly process are reduced, and the cost is further reduced; and by bonding a surface of the single cell 150 and the upper cover 120 through the structural glue 161, the single cell
- the thermally conductive structural glue 160 which not only strengthens the fixation of the single battery in the electrical housing cavity, and improves the strength of the entire power battery pack.
- the other opposite surface of 150 and the bottom plate 112 are connected by thermally conductive structural adhesive bonding, and the heat of the battery can also be transferred to the bottom plate through the thermally conductive structural adhesive, and dissipated through the bottom plate.
- the single battery 150 is a rectangular battery with a rectangular parallelepiped structure, and has a length L, a thickness D, and a height H between the length and the thickness.
- the battery 150 is arranged along the thickness direction of the single battery; the single battery 150 has two opposite large faces and two opposite narrow faces, the long side of the large side is the length of the single battery 150, and the short side is the single battery 150 height; the long side of the narrow side is the length of the single battery 150, and the short side is the thickness of the single battery 150.
- two adjacent single batteries 150 are placed in the battery accommodating cavity through a large surface.
- the outermost two single cells 150 along the thickness D direction of the single cells 150 may be provided with end plates 180 on the outer sides, and the single cells 150 may be connected to the tray 111 through the end plates 180.
- one of the narrow surfaces of the single cell 150 is bonded to the bottom plate 112 by a thermally conductive structural adhesive 160, and the other narrow surface of the single cell 150 is bonded to the upper cover 120 by a structural adhesive 161. Knot.
- the upper cover 120 and the bottom plate 112 are made of metal materials, and the upper cover 120 and the bottom plate 112 are made of metal materials.
- the bottom plate 112 and the upper cover 120 of metal material are used to protect the internal single battery 150 on the one hand, and on the other hand, the battery accommodating cavity can achieve the effect of heat dissipation.
- the bottom plate 112 and the upper cover 120 can adopt thermal conductivity High metal materials, including but not limited to aluminum, copper and their alloys.
- the bottom plate 112 and the upper cover 120 may be made of aluminum alloy material, which has good thermal conductivity and low density.
- the structural glue 161 is provided between one surface of the single battery 150 and the upper cover 120, and the thermally conductive structural glue 160 is provided between the other opposite lower surface of the single battery 150 and the bottom plate 112, that is, the single The upper surface of the battery 150 is bonded to the upper cover 120 by the structural adhesive 161, and the other opposite surface of the single battery 150 is bonded to the bottom plate 112 by the thermally conductive structural adhesive 160, so that the two opposite surfaces of the single battery 150 Both the upper end and the lower end are bonded to the battery pack shell, which strengthens the fixing of the single battery 150, so that the single battery 150 in the power battery pack 100 is firmly fixed, and the strength of the entire power battery pack is improved.
- one of the surfaces of the single battery 150 is bonded and connected to the bottom plate by the thermally conductive structural adhesive 160.
- the thermally conductive structural adhesive 160 can not only prevent the single battery 150 from being connected to the tray 110, but also enlarge the single battery 150 and the tray. 11 contact area, and transfer the heat of the battery to the bottom plate, dissipate through the bottom plate, play a good role in heat dissipation,
- the thermally conductive insulating glue may be thermally conductive silica gel, which has good insulation and thermal conductivity.
- the thermally conductive silica gel can conduct the heat of the single battery 150 to the bottom plate 112 in time.
- the structural adhesive can be one of epoxy resin, polyurethane, modified silane, acrylic, and silicone rubber added with inorganic thermally conductive filler, such as alumina.
- the power battery pack 100 of the present application may further include: a bottom protective plate and a heat exchange plate.
- the bottom guard plate is connected to the lower end of the side frame 111, and the bottom guard plate is spaced from the bottom plate 112 in the vertical direction, so that a cavity is formed between the bottom guard plate and the bottom plate 112, and the heat exchange plate is sandwiched between the bottom guard plate and the bottom plate 112. Between the bottom plate 112.
- the heat exchange plate may have a heat exchange cavity for circulating the heat exchange medium.
- the heat exchange plate may be a hollow plate body, and the heat exchange plate is provided with a flow channel, which is used to circulate the heat exchange medium, and the heat exchange medium may be water.
- the bottom guard plate and the bottom plate 112 are equivalent to a sandwich structure on the bottom surface of the tray 110.
- the heat exchange plate is placed outside the battery accommodating cavity, which can effectively ensure the electrical power of the power battery pack 100 in the event of sudden coolant leakage. Safety.
- the power battery pack 100 is installed on the chassis of the vehicle 1000.
- the heat exchange plate When the vehicle 1000 is running, if a bump on the road hits the power battery pack 100, the heat exchange plate will be damaged. There is a bottom plate 112 between the cavities for isolation, and the heat exchange medium will not flow into the battery accommodating cavity and affect the single battery 150.
- the bottom guard plate can protect the heat exchange plate to a certain extent and prevent the heat exchange plate from being damaged.
- the side frame 111 may be provided with an isolation cavity 113, the end of the heat exchange plate extends into the isolation cavity 113, the heat exchange plate may include a plurality of heat exchange runners, and the end of the heat exchange plate A collecting pipe is provided, and the collecting pipe is arranged in the isolation cavity 113, and the collecting pipe is communicated with an external waterway through a joint penetrating the side frame 111.
- the side frame 111 may be made of aluminum, and the side frame is configured to have a cavity structure, in which the lower end of one cavity is open, and the collector can be installed in the cavity from the open end below Inside, when the bottom shield is connected to the bottom of the side frame 111, the cavity is sealed to form an isolation cavity 113.
- the heat exchange plate in the interlayer between the bottom plate 112 and the bottom protective plate, the electrical safety of the power battery pack 100 can be effectively ensured, and the bottom protective plate can protect the heat exchange plate to a certain extent.
- the external heat exchange plate does not occupy the space of the battery accommodating cavity, and the battery density of the entire power battery pack 100 is higher.
- the surface of the heat exchange plate and the outer surface of the bottom plate 112 are bonded by a thermally conductive structural glue 160. In this way, the actual effective contact area between the heat exchange plate and the bottom plate 112 is large, which increases heat conduction.
- the heat exchange plate has an energy absorbing structure
- the heat exchange plate is an integrated structure with flow passages inside.
- the isolation ribs between adjacent flow passages can form the aforementioned energy absorbing structure, so that The overall structure of the hot plate 130 has an energy absorbing effect.
- the bottom protection board includes a main board body and an insulation layer, and the insulation layer is provided on a side of the main board body close to the heat exchange plate.
- the main board body can be a metal plate, including a steel plate, etc.
- the main board body can play a role in collision avoidance, and the thermal insulation layer can be a structure such as thermal insulation cotton. In this way, the bottom protective plate has excellent mechanical strength and can reduce the heat exchange between the package body and the outside.
- the bottom protection plate includes a main plate body and a buffer layer, and the buffer layer is provided on a side of the main plate body close to the heat exchange plate.
- the main board body can be a metal plate, including a steel plate, etc.
- the main board body can play a role of anti-collision
- the buffer layer is used to absorb external impact
- the buffer layer includes a structure such as a rubber layer. In this way, the bottom guard has excellent mechanical strength and resistance to mechanical impact.
- a power battery pack 100 includes a tray 110 and an upper cover 120.
- the tray 110 includes a side frame 111 and a bottom plate 112.
- the upper cover 120 and the bottom plate 112 are respectively connected to the upper and lower ends of the side frame 111 ,
- the structural glue 161 is adhesively connected, and the other opposite surface of the single cell 150 and the bottom plate 112 are adhesively connected by the thermally conductive structural glue 160.
- the single battery 150 is a rectangular battery with a rectangular parallelepiped structure, and has a length, a thickness, and a height between the length and the thickness. Arranged in the thickness direction.
- the single battery 150 has two opposite large surfaces and two opposite narrow surfaces, the long side of the large surface is the length of the single battery 150, and the short side is the height of the single battery 150;
- the long side of the narrow surface is the length of the single cell 150, and the short side is the thickness of the single cell 150.
- two adjacent single cells 150 are arranged in the battery accommodating cavity in a large-surface manner.
- one of the narrow surfaces of the single battery 150 is connected to the upper cover 120 by a structural adhesive 161; the other narrow surface of the single battery 150 is connected to the bottom plate 112. They are bonded by thermally conductive structural glue 160.
- both the upper cover 120 and the bottom plate 112 are made of metal materials.
- the power battery pack 100 further includes: a bottom guard plate connected to the lower end of the side frame 111 and spaced apart from the bottom plate 112 in the vertical direction; and a heat exchange plate, The heat exchange plate is sandwiched between the bottom guard plate and the bottom plate 112.
- the surface of the heat exchange plate and the outer surface of the bottom plate 112 are bonded by a thermally conductive structural glue 160.
- the heat exchange plate has a heat exchange cavity, and the heat exchange cavity is used for the circulation of heat exchange medium.
- the heat exchange plate has an energy absorbing structure.
- the bottom protection board includes a main board body and an insulation layer, and the insulation layer is provided on a side of the main board body close to the heat exchange plate.
- the bottom protection plate includes a main plate body and a buffer layer, and the buffer layer is provided on a side of the main plate body close to the heat exchange plate.
- the application also discloses a vehicle 1000.
- the vehicle 1000 of the embodiment of the present application has the power battery pack 100 of any of the foregoing embodiments.
- the vehicle 1000 in the embodiment of the present application may be an electric vehicle 1000, including an electric passenger car or an electric bus.
- the power battery pack 100 may be installed on the chassis of the vehicle 1000.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Inorganic Chemistry (AREA)
- Aviation & Aerospace Engineering (AREA)
- Battery Mounting, Suspending (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims (14)
- 一种动力电池包(100),其特征在于,包括:托盘(110)和上盖(120),所述托盘(110)包括侧边框(111)和底板(112),所述上盖(120)、所述底板(112)分别与所述侧边框(111)的上下两端连接,以限定出电池容纳腔;多个单体电池(150),多个所述单体电池(150)安装于所述电池容纳腔内,所述单体电池(150)的一个表面与所述上盖(120)之间通过结构胶(161)粘结连接,所述单体电池(150)的另一个相对的表面与所述底板(112)之间通过导热结构胶(160)粘结连接。
- 根据权利要求1所述的动力电池包(100),其特征在于,所述单体电池(150)为长方体结构的方形电池,并具有长度、厚度和介于所述长度和厚度之间的高度,多个所述单体电池(150)沿单体电池的厚度方向排布。
- 根据权利要求2所述的动力电池包(100),其特征在于,所述单体电池(150)具有两个相对的大面和两个相对的窄面,大面的长边为单体电池(150)的长度,短边为单体电池(150)的高度;窄面的长边为单体电池(150)的长度,短边为单体电池(150)的厚度。
- 根据权利要求3所述的动力电池包(100),其特征在于,相邻两个所述单体电池(150)通过大面对大面的方式在电池容纳腔中排布。
- 根据权利要求3或4所述的动力电池包(100),其特征在于,所述单体电池(150)的其中一个窄面与所述上盖(120)之间通过结构胶(161)粘结连接;所述单体电池(150)的另一个窄面与所述底板(112)之间通过导热结构胶(160)粘结。
- 根据权利要求1-5中任一项所述的动力电池包(100),其特征在于,所述上盖(120)和底板(112)均由金属材料制成。
- 根据权利要求1-6中任一项所述的动力电池包(100),其特征在于,还包括:底护板,所述底护板与所述侧边框(111)的下端相连,且与所述底板(112)在竖直方向上间隔开;换热板,所述换热板夹设在所述底护板与所述底板(112)之间。
- 根据权利要求7所述的动力电池包(100),其特征在于,所述换热板的表面与所述底板(112)的外表面通过导热结构胶(160)粘结。
- 根据权利要求7或8所述的动力电池包(100),其特征在于,所述换热板具有换热腔,所述换热腔用于换热介质的流通。
- 根据权利要求7-9中任一项所述的动力电池包(100),其特征在于,所述换热板具有吸能结构。
- 根据权利要求7-10中任一项所述的动力电池包(100),其特征在于,所述底护板 包括:主板体和保温层,所述保温层设在所述主板体的靠近所述换热板的一侧。
- 根据权利要求7-11中任一项所述的动力电池包(100),其特征在于,所述底护板包括:主板体和缓冲层,所述缓冲层设在所述主板体的靠近所述换热板的一侧。
- 一种车辆(1000),其特征在于,具有如权利要求1-12中任一项所述的动力电池包(100)。
- 根据权利要求13所述的车辆(1000),其特征在于,所述动力电池包(100)安装于所述车辆(1000)的底盘。
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CN113708002A (zh) * | 2021-09-29 | 2021-11-26 | 远景能源有限公司 | 电池箱和储能电池 |
WO2024063981A1 (en) * | 2022-09-23 | 2024-03-28 | Apple Inc. | Structural battery pack with durability improvements |
KR20240077888A (ko) * | 2022-11-25 | 2024-06-03 | 주식회사 엘지에너지솔루션 | 전지 디바이스 |
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