WO2020173481A1 - 电池以及电池组 - Google Patents

电池以及电池组 Download PDF

Info

Publication number
WO2020173481A1
WO2020173481A1 PCT/CN2020/076973 CN2020076973W WO2020173481A1 WO 2020173481 A1 WO2020173481 A1 WO 2020173481A1 CN 2020076973 W CN2020076973 W CN 2020076973W WO 2020173481 A1 WO2020173481 A1 WO 2020173481A1
Authority
WO
WIPO (PCT)
Prior art keywords
battery
heat
heat conducting
components
component
Prior art date
Application number
PCT/CN2020/076973
Other languages
English (en)
French (fr)
Inventor
李义
陈小明
Original Assignee
东莞新能源科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 东莞新能源科技有限公司 filed Critical 东莞新能源科技有限公司
Priority to EP20712822.4A priority Critical patent/EP3731335A4/en
Publication of WO2020173481A1 publication Critical patent/WO2020173481A1/zh

Links

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
    • H01M10/60—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
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • 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
    • H01M10/04—Construction or manufacture in general
    • H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
    • 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
    • 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
    • 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
    • H01M10/6551—Surfaces specially adapted for heat dissipation or radiation, e.g. fins or coatings
    • 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
    • H01M10/6554—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
    • 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
    • H01M50/233—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
    • 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
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • 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

Definitions

  • This application relates to the field of battery technology, and specifically to a battery and a battery pack. Background technique
  • FIG. 1 shows a schematic diagram of the structure of an existing battery pack.
  • the battery pack 100 usually includes a plurality of battery cells 110 arranged in a stack, and a heat dissipation aluminum sheet 120 may be provided on the surface of each battery cell 110 to realize heat dissipation of each battery cell 110.
  • a battery pack may have dozens or dozens of stacked battery cells. Due to the heat accumulation of the battery cells located in the center of the battery pack, the temperature difference between the battery cells located in the center and the battery cells located at the edges is caused. Very large, which will affect the life of the battery cell. In addition, the stacked arrangement of a dozen or even dozens of cells will also cause difficulties in the assembly of the battery pack. Summary of the invention
  • the present application proposes a battery and a battery pack, which can at least reduce the temperature difference between the cell at the center of the battery and the cell at the edge, so as to improve the life of the cell.
  • a battery including: electric cores, a plurality of electric cores are arranged in a stack; at least two first heat conducting components, each of the first heat conducting components is located on the surface of one electric core; The second heat conducting component forms part of the surface of the battery, and at least two first heat conducting components contact the second heat conducting component.
  • the shape of the second heat conducting component is u-shaped, and the second heat conducting component constitutes at least part of the first surface, the second surface and at least part of the third surface of the battery.
  • the first surface, the second surface and the third surface The surfaces are connected in turn.
  • the second heat conduction component includes a first heat conduction subcomponent and a second heat conduction subcomponent, wherein the shapes of the first heat conduction subcomponent and the second heat conduction subcomponent are both L-shaped, and the first The thermally conductive subcomponent constitutes the first surface and the first portion of the second surface of the battery, and the second thermally conductive subcomponent constitutes the second portion and the third surface of the second surface of the battery.
  • the sum of the areas of the first part of the second surface and the second part of the second surface is greater than or equal to 90% of the area of the second surface.
  • the shape of the at least one first heat conducting component is U-shaped, and the at least one first heat conducting component is located on at least part of the first surface, the second surface, and at least part of the third surface of the corresponding cell.
  • the first surface, The second surface and the third surface are connected in sequence.
  • the two first heat-conducting components are respectively arranged on the surfaces of two adjacent electric cores, and the two first heat-conducting components are arranged oppositely and clamped to each other.
  • there are a plurality of the first heat conduction components the surface of each cell is provided with the first heat conduction component, and each first heat conduction component contacts the second heat conduction component. part.
  • the battery further includes a thermally conductive adhesive, and the thermally conductive adhesive is disposed between the second thermally conductive component and each of the first thermally conductive components.
  • the edges of the plurality of first heat conducting components are aligned with each other.
  • the battery further includes a buffer sheet, and the buffer sheet is located between the plurality of cells.
  • a battery pack including: a plurality of the above-mentioned batteries and a third heat-conducting component, the third heat-conducting component contacts each second heat-conducting component.
  • the battery pack further includes a second thermal conductive glue, and the second thermal conductive glue is disposed between the third thermal conductive component and each second thermal conductive component.
  • multiple batteries are stacked in the thickness direction of the battery.
  • the shape of the third heat-conducting component is U-shaped, and the third heat-conducting component constitutes at least part of the first side surface, the second side surface and at least part of the third side surface of the battery pack.
  • the three sides are connected in sequence.
  • the battery pack further includes a second buffer sheet, and the second buffer sheet is located between the multiple batteries.
  • the battery is divided into a first battery and a second battery.
  • the first battery is close to the outside of the battery pack, the first battery includes a plurality of first battery cells, and the second battery includes a plurality of second battery cells.
  • the number of the first battery cells is different from the number of the second battery cells.
  • the first heat-conducting component and the second heat-conducting component can realize the connection between the cell at the edge and the cell at the center.
  • Heat conduction reduces the heat concentration effect at the center area of the battery when the battery is working, reduces the temperature difference between the battery core at the center and the battery core at the edge, and thereby can improve the battery life;
  • the above technical solution of this application provides In the battery pack, through the heat transfer of the first, second and third heat conducting components, the heat conduction between the cells at the edge and the cell at the center of the battery pack is realized, which reduces the working time of the battery pack.
  • the heat concentration effect at the central area reduces the temperature difference between the battery cell at the center and the battery cell at the edge, so that the temperature between the multiple cells in the battery pack is more balanced, thereby improving the battery pack’s life.
  • each battery when assembling the battery pack, each battery can be assembled as a unit. Therefore, the battery pack provided by the present application is more convenient to assemble, and can avoid the problem of difficulty in assembly and movement due to the heavy weight of the battery pack during the assembly process. . Description of the drawings
  • Figure 1 is a schematic diagram of the structure of an existing battery pack
  • Fig. 2 is a schematic structural diagram of a battery according to an embodiment of the present application.
  • Fig. 3 is an exploded schematic diagram of the structure of a battery according to an embodiment of the present application.
  • Figure 4a is a front view of a second heat conducting component of a battery according to an embodiment of the present application.
  • Figure 4b is a side view of a second heat conducting component of a battery according to an embodiment of the present application.
  • Fig. 5 is a front view of a second heat conducting component of a battery according to another embodiment of the present application
  • Fig. 6 is a front view of a battery including the second heat conducting component of Fig. 5;
  • Fig. 7a is a front view of a first heat conducting component of a battery according to an embodiment of the present application.
  • Fig. 7b is a side view of the first heat conducting component of the battery according to the embodiment of the present application.
  • Fig. 8a is a schematic structural diagram of a first heat conducting component of a battery according to another embodiment of the present application
  • Fig. 8b is a schematic structural exploded view of the first heat conducting component in Fig. 8a;
  • Fig. 9 is a schematic structural diagram of a battery pack according to an embodiment of the present application.
  • Fig. 10 is a schematic structural exploded view of a plurality of batteries in a battery pack according to an embodiment of the present application. detailed description
  • FIG. 2 shows a schematic structural diagram of a battery according to an embodiment of the present application.
  • the present application provides a battery 10.
  • the battery 10 includes a plurality of battery cells 12, and the plurality of battery cells 12 are stacked.
  • the number of battery cells 12 shown in FIG. 2 is only an example, and the number of battery cells 12 may be any other suitable number.
  • Fig. 3 shows an exploded schematic diagram of the structure of a battery according to an embodiment of the present application.
  • the battery 10 of the present application may further include a first heat-conducting component 14 and a second heat-conducting component 16.
  • the second heat-conducting component 16 constitutes a part of the surface of the battery 10, and at least two first heat-conducting components 14 are in contact with the second heat-conducting component 16.
  • first heat-conducting parts 14 when there are two first heat-conducting parts 14, one first heat-conducting part 14 can be arranged on the surface of the battery core 12 at the center, and the other first heat-conducting part 14 can be arranged on the surface of the battery core 12 at the edge.
  • the first heat-conducting components 14 may be arranged on the surface of each cell 12, or arranged on the surface of the cell 12 at regular or irregular intervals along the thickness direction T of the cell 12.
  • the second heat conducting member 16 shown in FIG. 3 is configured as a first side surface 102 of the battery 10 extending in the thickness direction T of each cell 12, a surface 104 extending in the width direction W, and disposed opposite to the first side surface 102 The second side 106. It should be understood that you can also The structure and size of the second heat-conducting component 16 are appropriately designed so that the second heat-conducting component 16 constitutes the other part of the surface of the battery 10, which is not limited in this application.
  • the edge can be realized by the first and second heat-conducting components 14 and 16
  • the heat conduction between the battery core 12 and the battery core 12 at the center reduces the heat concentration effect in the center area when the battery is working, and reduces the difference between the battery core 12 at the center and the battery core 12 at the edge.
  • the temperature difference makes the temperature between the plurality of cells 12 of the battery 10 more balanced, thereby improving the life of the cells.
  • first heat-conducting component 14 and the second heat-conducting component 16 can be made of any suitable material with thermal conductivity.
  • the material of the first heat conducting component 14 and the second heat conducting component 16 may be aluminum. In an embodiment, the materials of the first heat conducting component 14 and the second heat conducting component 16 may be different.
  • the battery 10 of the present application may further include a buffer sheet 18, and the buffer sheet 18 is located between the plurality of battery cells 12 to connect two adjacent battery cells 12 through the buffer sheet 18.
  • the battery cell 12 and the buffer sheet 18 can be fixedly connected by setting adhesive glue on the buffer sheet 18.
  • the cushion sheet 18 can be made of materials with cushioning effects such as foam.
  • the connection between the battery cells 12 is realized by arranging the buffer sheet 18 between the two adjacent battery cells 12, so that expansion space can be reserved for each battery cell.
  • the number of the first heat conducting component 14 is multiple.
  • a first heat conducting component 14 is provided on the surface of each cell 12, and each first heat conducting component 14 contacts the second heat conducting component
  • the battery 10 may further include a thermally conductive glue disposed between the second thermally conductive component 16 and each of the first thermally conductive components 14.
  • the material of the thermally conductive adhesive is thermally conductive silicone grease.
  • the material of the thermally conductive adhesive may also be other suitable thermally conductive materials.
  • the heat transfer between the first heat-conducting part 14 and the second heat-conducting part 16 can be realized by filling a heat-conducting glue between the second heat-conducting part 16 and each of the first heat-conducting parts 14. It should be understood that the connection and heat transfer between the first heat-conducting component 14 and the second heat-conducting component 16 can also be realized in other suitable ways.
  • first heat conducting components 14 in the length direction L of each cell 12, a plurality of first heat conducting components The edges of 14 can be aligned with each other.
  • the thickness of the first heat-conducting component 14 may be in the range of 0.2 mm to 0.5 mm, so that the first heat-conducting component 14 can have an appropriate thickness and can achieve a good heat dissipation effect.
  • the first heat conducting component 14 may have other appropriate thicknesses according to actual applications.
  • the first heat conducting component 14 and the corresponding electric core 12 may be connected by adhesive glue.
  • the thickness of the adhesive glue may be in the range of 30 fim to 50 fim, for example, the thickness of the adhesive glue may be 40 fim, so as to ensure the smallest conductive thermal resistance and sufficient bonding strength on the heat transfer path.
  • the thickness of the second heat conducting member 16 may be 0.2 mm. In other embodiments, the second heat conducting member 16 may have other appropriate thicknesses.
  • the shape of the second heat conducting member 16 is U-shaped.
  • U-shaped heat conducting member 16 includes a second bottom surface 162 and the bottom surface of the first side wall connected to both ends 162 and 164 and disposed opposite the second side wall 166 o
  • U shaped member 16 constitutes a second heat conducting cell 10 At least part of the first surface, the second surface and at least part of the third surface, and the first surface, the second surface and the third surface are connected in sequence.
  • first side wall 164 and the second side wall 166 of the second heat conducting member 16 constitute at least part of the first surface and at least part of the third surface of the battery 10, respectively, and the bottom surface 162 of the second heat conducting member 16 constitutes the battery 10 The second surface.
  • the first surface, the second surface, and the third surface of the battery 10 may be the first side surface 102 of the battery 10 extending in the thickness direction T of each battery cell 12 and the width
  • the surface 106 extending in the direction W, and the second side 106 disposed opposite to the first side 102, that is, the U-shaped second heat conducting member 16 constitutes the first extension of the battery 10 in the thickness direction T of each cell 12
  • the second heat conducting component 16 may be formed as another surface of the battery 10.
  • Fig. 5 shows a front view of a second heat conducting component of a battery according to another embodiment of the present application.
  • Fig. 6 shows a front view of a battery including the second heat conducting member in Fig. 5. As shown in FIG.
  • the second thermally conductive component 16 may include a first thermally conductive subcomponent 161 and a second thermally conductive subcomponent 163, wherein the first thermally conductive subcomponent 161 and the second thermally conductive subcomponent 163 are both L-shaped.
  • the first thermally conductive subcomponent 161 constitutes the first surface and the first part of the second surface of the battery 10
  • the second thermally conductive subcomponent 163 constitutes the second portion and the third surface of the second surface of the battery 10.
  • the first surface and the third surface may respectively be the first side surface and the second side surface 106 that extend in the thickness direction T of each cell 12 and are arranged opposite to each other, and the second surface may be on each cell 12
  • the surface 104 extending in the width direction W, that is, the second heat conducting member 16 may constitute the first side surface of the battery 10 extending in the thickness direction T of each cell 12, and the first surface 104 extending in the width direction W One part, the second part, and the second side 106 opposite to the first side.
  • the sum of the areas of the first part of the second surface and the second part of the second surface is greater than or equal to 90% of the area of the second surface.
  • the second heat conducting component 16 can constitute at least 90% of the surface area of the surface 104 of the battery 10 extending in the width direction W of each cell 12.
  • Figures 7a and 7b respectively show a front view and a side view of a first heat conducting component of a battery according to an embodiment of the present application.
  • the shape of at least one first heat conducting component 14 is U-shaped.
  • the U-shaped first heat conducting component 14 includes a bottom surface 142 and a first side wall 144 and a second side wall 146 connected to two ends of the bottom surface 142 and disposed oppositely.
  • the U-shaped first heat conducting component 14 is provided on at least part of the first surface, the second surface, and at least part of the third surface of the corresponding cell 12, and the first surface, the second surface, and the third surface of the cell 12 are sequentially connected .
  • the first side wall 144 and the second side wall 146 of the first heat conducting component 14 are respectively disposed on at least part of the first surface and at least part of the third surface of the cell 12, and the bottom surface 142 of the first heat conducting component 14 is disposed.
  • the first surface, the second surface, and the third surface of the cell 12 may be the first side surface 102 extending in the thickness direction T of each cell 12, in the width direction.
  • the second heat conducting component 16 may be formed as another surface of the battery core 12.
  • the lengths of the first side wall 144 and the second side wall 146 of the first heat-conducting component 14 are the same as the thickness of the cell 12, so that the first heat-conducting component 14 can obtain a larger heat dissipation area.
  • Fig. 8a shows a schematic structural diagram of a first heat conducting component of a battery according to another embodiment of the present application.
  • Fig. 8b shows an exploded schematic view of the structure of the first heat conducting component in Fig. 8a.
  • two first heat conducting components 14 are respectively disposed on the surfaces of two adjacent electric cores, the two first heat conducting components 14 are U-shaped, and the two first heat conducting components 14 The components 14 are arranged oppositely and clamped to each other, so that two adjacent electric cores are arranged between the two first heat conducting components 14 arranged oppositely.
  • Fig. 9 shows a schematic structural diagram of a battery pack according to an embodiment of the present application.
  • a battery pack 200 is further provided, and the battery pack 200 includes a plurality of batteries 10 described above.
  • various embodiments of the battery 10 can be applied to the battery pack 200, and are not limited.
  • the battery pack 200 may further include a third heat-conducting component 20, and the third heat-conducting component 20 is in contact with the second heat-conducting component 16 of each battery 10.
  • the heat dissipation method of the third heat conducting component 20 may be any one of heat dissipation methods such as natural heat dissipation, air cooling heat dissipation, and liquid cooling heat dissipation.
  • the battery pack 200 provided by the above technical solution of the present application realizes the electric core 12 at the edge and the electric core at the center of the battery pack 200 through the heat transfer of the first heat conducting component, the second heat conducting component 16 and the third heat conducting component 20
  • the heat conduction between 12 reduces the heat concentration effect at the center area of the battery pack when working, reduces the temperature difference between the battery core 12 at the center and the battery core 12 at the edge, and realizes the temperature difference in the battery pack 200
  • the temperature balance among the plurality of battery cells 12 can further improve the life of the battery pack.
  • each battery 10 can be used as a unit. Therefore, the battery pack 200 provided in the present application is more convenient to assemble and can avoid difficulties in assembly and movement due to the weight of the battery pack during the assembly process. The problem.
  • the battery 10 is divided into a first battery 101 and a second battery 103, the first battery 101 is close to the outside of the battery pack 200, the first battery 101 includes a plurality of first battery cells 121, and the second battery 103 includes a plurality of batteries.
  • the number of the first battery 121 of the first battery 101 may be different from the number of the second battery 123 of the second battery 103. In other embodiments In this case, the number of the plurality of first battery cells 121 of the first battery 101 may be the same as the number of the plurality of second battery cells 123 of the second battery 103.
  • the number of battery cells 12 in each battery 10 can be configured according to the heat transfer temperature difference of each battery cell 12 in the thickness direction T, so that the temperature difference between each battery 10 in the battery pack 200 is minimized.
  • the more battery cells there are in the battery pack the better the effect of the battery pack provided in this application will be.
  • the effect of the battery pack of the present application can be more reflected.
  • a plurality of batteries 10 are stacked in the thickness direction T of each cell 12.
  • the number of batteries 10 shown in FIG. 9 is only exemplary, and the number of batteries 10 in the battery pack 200 may be any other suitable number.
  • the battery pack 200 of the present application may further include a second thermally conductive adhesive, and the second thermally conductive adhesive is disposed between the third thermally conductive component 20 and each of the second thermally conductive components 16. It is possible to reserve a space of 1 mm to 2 mm between the third heat conductive component 20 and the plurality of batteries 10 to fill the second heat conductive glue, so that the second heat conductive glue has a thickness in the range of 1 mm to 2 mm, so as to ensure the second The thermal conductive glue has good contact with the third thermal conductive component 20 and the plurality of batteries 10, and can and has a sufficient compressibility.
  • the second thermally conductive glue may include thermally conductive silica gel, one-component thermally conductive paste, two-component thermally conductive gel, and the like.
  • the second thermally conductive adhesive may be a silicone rubber material, and the silicon rubber is filled with metal oxides or other highly thermally conductive particles, so as to simultaneously obtain the elasticity of the silicone rubber and the thermal conductivity of the filled particles.
  • the shape of the third heat conducting component 20 may be U-shaped.
  • the U-shaped third heat conducting component 20 constitutes at least part of the first side surface 202, the second side surface 204, and at least part of the third side surface 206 of the battery pack 200, and the first side surface 202, the second side surface 204, and the third side surface 206 are sequentially connected.
  • the first side surface 202, the second side surface 204, and the third side surface 206 of the battery pack 200 may be the first side surface 202 extending in the width direction W of the plurality of battery cells 12, and in the thickness direction T The extended second side surface 204 and the third side surface 206 disposed opposite to the first side surface 202.
  • the second thermally conductive member 16 may be configured as the battery pack 200 Other surfaces.
  • the edge of the third heat conducting component 20 extends beyond the edge of the cell 12. In other embodiments, in the length direction L of each cell 12, the edge of the third heat conducting component 20 may not exceed the edge of the cell 12.
  • the material of the third heat-conducting component 20 may be any suitable material that facilitates heat dissipation.
  • the material of the third heat-conducting component 20 includes any one of aluminum, stainless steel, and carbon steel.
  • Fig. 10 shows a schematic structural exploded view of multiple batteries in a battery pack according to an embodiment of the present application.
  • the battery pack 200 may further include a second buffer sheet 30, which is located between the plurality of batteries 10 to connect two adjacent batteries 10 through the second buffer sheet 30.
  • the second buffer sheet 30 can be fixedly connected with the corresponding battery 10 by setting the adhesive glue on the second buffer sheet 30.
  • the second buffer sheet 30 can be made of a material with a buffering effect such as foam.
  • the connection between the batteries 10 is realized by arranging the second buffer sheet 30 between two adjacent batteries 10, which can reserve expansion space for the soft-packed battery cell.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

本申请公开了一种电池以及电池组，该电池包括：电芯，电芯为多个且堆叠设置；至少两个第一导热部件，每个所述第一导热部件位于一个电芯的表面；第二导热部件，构成电池的部分表面，且至少两个第一导热部件接触第二导热部件。本申请上述技术方案提供的电池，至少能够实现电池的多个电芯之间的温度均衡，从而能够提升电芯寿命。

Description

电池以及电池组 技术领域
本申请涉及电池技术领域， 具体来说， 涉及一种电池以及电池组。 背景技术
图 1示出了现有的电池组的结构示意图。如图 1所示， 电池组 100内通常 包括堆叠设置的多个电芯 110,在每个电芯 110的表面上可以设置散热铝片 120, 以实现对各个电芯 110的散热。通常， 电池组内可以具有十几个或者几十个堆 叠布置的电芯， 由于位于电池组中心处的电芯的热量累积， 导致位于中心处的 电芯与位于边缘处的电芯之间温差很大， 从而会对电芯的寿命产生影响。 另 外， 十几个甚至几十个电芯堆叠布置还会导致电池组组装困难。 发明内容
针对相关技术中的上述问题， 本申请提出一种电池以及电池组， 至少能 够减小电池中心处的电芯与位于边缘处的电芯之间的温差， 从而能够提升电 芯寿命。
本申请的技术方案是这样实现的：
根据本申请的一个方面， 提供了一种电池， 包括： 电芯， 电芯为多个且 堆叠设置； 至少两个第一导热部件， 每个所述第一导热部件位于一个电芯 的表面； 第二导热部件， 构成电池的部分表面， 且至少两个第一导热部件 接触第二导热部件。
根据本申请的实施例， 第二导热部件的形状为 u型， 第二导热部件构 成电池的至少部分第一表面、第二表面以及至少部分第三表面，第一表面、 第二表面和第三表面依次连接。
根据本申请的实施例， 第二导热部件包括第一导热子部件和第二导热 子部件， 其中， 第一导热子部件和第二导热子部件的形状都为 L型， 第一 导热子部件构成电池的第一表面和第二表面的第一部分， 第二导热子部件 构成电池的第二表面的第二部分和第三表面。
根据本申请的实施例， 第二表面的第一部分和第二表面的第二部分的 面积之和大于等于第二表面面积的 90%。
根据本申请的实施例， 至少一个第一导热部件的形状为 U型， 至少一 个第一导热部件位于相应电芯的至少部分第一表面、 第二表面以及至少部 分第三表面， 第一表面、 第二表面和第三表面依次连接。
根据本申请的实施例， 两个第一导热部件分别设置在两个相邻的电芯 的表面上， 并且两个第一导热部件相对设置且相互卡接。 根据本申请的实 施例， 所述第一导热部件为多个， 每个所述电芯的表面均设置有所述第一 导热部件， 每个所述第一导热部件均接触所述第二导热部件。
根据本申请的实施例， 电池还包括导热胶， 导热胶设置在第二导热部 件与每个第一导热部件之间。
根据本申请的实施例， 在电芯的长度方向上， 多个第一导热部件的边 缘相互对齐。
根据本申请的实施例，电池还包括缓冲片，缓冲片位于多个电芯之间。 根据本申请的另一方面， 提供了一种电池组， 包括： 多个上述的电池及 第三导热部件， 第三导热部件接触每个第二导热部件。
根据本申请的实施例， 电池组还包括第二导热胶， 第二导热胶设置在 第三导热部件与每个第二导热部件之间。
根据本申请的实施例， 多个电池在电池的厚度方向上堆叠设置。
根据本申请的实施例， 第三导热部件的形状为 U型， 第三导热部件构 成电池组的至少部分第一侧面、 第二侧面以及至少部分第三侧面， 第一侧 面、 第二侧面和第三侧面依次连接。
根据本申请的实施例， 电池组还包括第二缓冲片， 第二缓冲片位于多 个电池之间。
根据本申请的实施例， 电池分为第一电池和第二电池， 第一电池靠近 电池组的外侧，第一电池包括多个第一电芯，第二电池包括多个第二电芯， 多个第一电芯的数量与多个第二电芯的数量不同。 本申请的有益效果在于：
本申请上述技术方案提供的电池，由于至少一个第一导热部件与第二导热 部件接触，因此可以通过第一导热部件和第二导热部件实现边缘处的电芯与中 心处的电芯之间的热量传导， 降低了电池工作时中心区域处的热量集中效应， 减小了中心处的电芯与位于边缘处的电芯之间的温差，进而能够提升电芯寿命; 本申请上述技术方案提供的电池组，通过第一导热部件、第二导热部件和 第三导热部件的热量传递，实现了电池组中边缘处的电芯与中心处的电芯之间 的热量传导， 降低了电池组工作时中心区域处的热量集中效应， 减小了中心处 的电芯与位于边缘处的电芯之间的温差，使电池组中的多个电芯之间的温度更 加均衡， 进而能够提升电池组的寿命。 另一方面， 在进行电池组组装时， 可以 以每个电池为单位进行组装， 因此本申请提供的电池组更加便于组装， 能够避 免组装过程中由于电池组太重而导致组装、 移动困难的问题。 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施 例中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是 本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的 前提下， 还可以根据这些附图获得其它的附图。
图 1是现有的电池组的结构示意图；
图 2是根据本申请实施例的电池的结构示意图；
图 3是根据本申请实施例的电池的结构分解示意图；
图 4a是根据本申请实施例的电池的第二导热部件的主视图；
图 4b是根据本申请实施例的电池的第二导热部件的侧视图；
图 5是根据本申请另一实施例的电池的第二导热部件的主视图； 图 6是包括图 5中的第二导热部件的电池的主视图；
图 7a是根据本申请实施例的电池的第一导热部件的主视图；
图 7b是根据本申请实施例的电池的第一导热部件的侧视图；
图 8a是根据本申请另一实施例的电池的第一导热部件的结构示意图； 图 8b是图 8a中的第一导热部件的结构分解示意图；
图 9是根据本申请实施例的电池组的结构示意图；
图 10根据本申请实施例的电池组中的多个电池的结构分解示意图。 具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清 楚、 完整地描述， 显然， 所描述的实施例仅仅是本申请一部分实施例， 而不是 全部的实施例。基于本申请中的实施例， 本领域普通技术人员所获得的所有其 它实施例， 都属于本申请保护的范围。
以下说明书中和附图中相应的示例性实施例可以相互组合， 从而形成 未在以下进行描述的其他实施方式； 并且其中部分部件在不同实施例中可 以省略。 换句话说， 以下描述对本申请并不构成限定。
图 2示出了根据本申请实施例的电池的结构示意图。本申请提供了一种电 池 10, 电池 10包括多个电芯 12, 多个电芯 12堆叠设置。 图 2中示出的电芯 12的数量仅是示例性的， 电芯 12可以是任何其它适当的数量。
图 3示出了根据本申请实施例的电池的结构分解示意图。 结合图 3所示， 本申请的电池 10还可以包括第一导热部件 14和第二导热部件 16 , 第一导 热部件 14为至少两个，每个第一导热部件 14设置在一个电芯 12的表面上。 第二导热部件 16构成电池 10的部分表面， 并且， 至少两个第一导热部件 14与第二导热部件 16接触。 其中， 当第一导热部件 14为两个时， 一个第 一导热部件 14可设置于中心处的电芯 12表面，另一第一导热部件 14可设 置于边缘处的电芯 12表面。 当第一导热部件 14为多个时， 第一导热部件 14可设置于每个电芯 12表面， 或者沿电芯 12的厚度方向 T有规律或无规 律地间隔设置于电芯 12的表面。
由此可以通过第一导热部件 14、 和第二导热部件 16实现多个电芯 12 之间的热量传导。 在一些实施例中， 多个电芯 12在各个电芯 12的厚度方 向 T上堆叠设置。 图 3示出的第二导热部件 16 , 构成为电池 10在各个电 芯 12的厚度方向 T上延伸的第一侧面 102、 在宽度方向 W上延伸的表面 104、 以及与第一侧面 102相对设置的第二侧面 106。 应当理解， 也可以对 第二导热部件 16 的结构和尺寸进行其它适当的设计， 使得第二导热部件 16构成电池 10的其它部分表面， 本申请并不对此构成限定。
本申请上述技术方案提供的电池 10, 由于至少两个电芯 12表面上的第一 导热部件 14与第二导热部件 16接触， 因此可以通过第一导热部件 14和第二 导热部件 16实现边缘处的电芯 12与中心处的电芯 12之间的热量传导， 降低 了电池工作时中心区域处的热量集中效应， 减小了中心处的电芯 12与位于边 缘处的电芯 12之间的温差， 使电池 10的多个电芯 12之间的温度更加均衡， 进而能够提升电芯寿命。
其中， 第一导热部件 14和第二导热部件 16可以采用任何适当的具有 导热性能的材料。 在一个实施例中， 第一导热部件 14和第二导热部件 16 的材料都可以是铝。 在一个实施例中， 第一导热部件 14 和第二导热部件 16的材料可以不相同。
继续参考图 3所示， 本申请的电池 10还可以包括缓冲片 18， 缓冲片 18位于多个电芯 12之间， 以通过缓冲片 18连接相邻的两个电芯 12。 可以 通过在缓冲片 18上设置粘接胶来使得电芯 12与缓冲片 18固定连接。缓冲 片 18 可以采用例如泡棉等具有缓冲作用的材料。 通过在相邻的两个电芯 12之间设置缓冲片 18来实现电芯 12之间的连接， 可以为各个电芯预留出 膨胀空间。
在一个实施例中， 第一导热部件 14的数量为多个。 每个电芯 12的表 面均设置有第一导热部件 14， 每个第一导热部件 14均接触第二导热部件
16。
在一个实施例中， 电池 10还可以包括设置在第二导热部件 16与每个 第一导热部件 14之间的导热胶。 在一个实施例中， 导热胶的材料为导热硅 脂。 在一些实施例中， 导热胶的材料也可以是其它适当的导热材料。 可以 通过在第二导热部件 16与每个第一导热部件 14之间填充导热胶， 来实现 第一导热部件 14与第二导热部件 16之间热量的传递。 应当理解， 也可以 通过其它适当的方式来实现第一导热部件 14与第二导热部件 16之间的连 接和热量传递。
在一些实施例中， 在各个电芯 12的长度方向 L上， 多个第一导热部件 14 的边缘可以相互对齐。 在一些实施例中， 第一导热部件 14 的厚度可以 在 0.2 mm至 0.5mm的范围内， 从而第一导热部件 14能够具有适当厚度， 并且能够实现良好的散热效果。 在其它实施例中， 根据实际应用第一导热 部件 14可以具有其它适当的厚度。 在一些实施例中， 可以通过粘接胶来连 接第一导热部件 14和相应的电芯 12。 在一些实施例中， 粘接胶的厚度可 以在 30fim至 50fim的范围内， 例如粘接胶的厚度可以是 40fim, 从而保证 传热路径上的最小的传导热阻和足够的粘接强度。 在一个实施例中， 第二 导热部件 16的厚度可以是 0.2mm。 在其它实施例中， 第二导热部件 16可 以具有其它适当的厚度。
图 4a和图 4b分别示出了根据本申请实施例的电池 10的第二导热部件 的主视图和侧视图。 在一个实施例中， 如图 4a、 图 4b所示， 第二导热部件 16的形状为 U型。 具体的， U型的第二导热部件 16包括底面 162以及连 接于底面 162的两端并且相对设置的第一侧壁 164和第二侧壁 166 oU型的 第二导热部件 16构成电池 10的至少部分第一表面、 第二表面以及至少部 分第三表面， 第一表面、 第二表面和第三表面依次连接。 也就是说， 第二 导热部件 16的第一侧壁 164和第二侧壁 166分别构成电池 10的至少部分 第一表面和至少部分第三表面， 第二导热部件 16的底面 162构成电池 10 的第二表面。通过将第二导热部件 16设置为 U型结构， 可以使得电池的多 个电芯的散热效率得到强化。
在一个实施例中， 结合图 3所示， 电池 10的第一表面、 第二表面和第 三表面可以分别是电池 10在各个电芯 12的厚度方向 T上延伸的第一侧面 102、在宽度方向 W上延伸的表面 106、 以及与第一侧面 102相对设置的第 二侧面 106， 也就是说， U型的第二导热部件 16构成电池 10在各个电芯 12的厚度方向 T上延伸的第一侧面 102、在宽度方向 W上延伸的表面 106、 以及与第一侧面 102相对设置的第二侧面 106。 在其它实施例中， 第二导 热部件 16可以构成为电池 10的其它表面。 在一个实施例中， 在各个电芯 12的厚度方向 T上， 第二导热部件 16的第一侧壁 164和第二侧壁 166的 长度与电池 10的厚度相同， 从而可以使得第二导热部件 16获得更大的散 热面积。 图 5示出了根据本申请另一实施例的电池的第二导热部件的主视图。 图 6示出了包括图 5中的第二导热部件的电池的主视图。 如图 5所示， 第 二导热部件 16可以包括第一导热子部件 161和第二导热子部件 163 ,其中， 第一导热子部件 161和第二导热子部件 163的形状都为 L型。如图 6所示， 第一导热子部件 161构成电池 10的第一表面和第二表面的第一部分，第二 导热子部件 163构成电池 10的第二表面的第二部分和第三表面。在一个实 施例中，第一表面和第三表面可以分别是在各个电芯 12的厚度方向 T上延 伸且相对设置的第一侧面和第二侧面 106 , 第二表面可以是在各个电芯 12 的宽度方向 W上延伸的表面 104 , 也就是说， 第二导热部件 16可以构成电 池 10在各个电芯 12的厚度方向 T上延伸的第一侧面、在宽度方向 W上延 伸的表面 104的第一部分和第二部分、 以及与第一侧面相对设置的第二侧 面 106。
在一个实施例中， 为了获得足够大的传热面积， 第二表面的第一部分 和第二表面的第二部分的面积之和大于等于第二表面面积的 90%。 也就是 说， 第二导热部件 16可以构成电池 10在各个电芯 12的宽度方向 W上延 伸的表面 104的表面面积的至少 90%。
图 7a和图 7b分别示出了根据本申请实施例的电池的第一导热部件的 主视图和侧视图。 如图 7a、 图 7b所示， 至少一个第一导热部件 14的形状 为 U型。 具体的， U型的第一导热部件 14包括底面 142 以及连接于底面 142的两端且相对设置的第一侧壁 144和第二侧壁 146。 U型的第一导热部 件 14设置在相应电芯 12的至少部分第一表面、 第二表面以及至少部分第 三表面上， 电芯 12的该第一表面、 第二表面和第三表面依次连接。 也就是 说， 第一导热部件 14的第一侧壁 144和第二侧壁 146分别设置在电芯 12 的至少部分第一表面和至少部分第三表面上， 第一导热部件 14的底面 142 设置在电池 10的第二表面上。 在一个实施例中， 结合图 3所示， 电芯 12 的第一表面、 第二表面和第三表面可以分别是在各个电芯 12的厚度方向 T 上延伸的第一侧面 102、 在宽度方向 W上延伸的表面 104、 以及与第一侧 面 102相对设置的第二侧面 106。 在其它实施例中， 第二导热部件 16可以 构成为电芯 12的其它表面。 在一个实施例中， 在各个电芯 12的厚度方向 T上， 第一导热部件 14的第一侧壁 144和第二侧壁 146的长度与电芯 12 的厚度相同， 从而可以使得第一导热部件 14获得更大的散热面积。
图 8a示出了根据本申请另一实施例的电池的第一导热部件的结构示意 图。 图 8b示出了图 8a中的第一导热部件的结构分解示意图。 如图 8a和图 8b所示， 两个第一导热部件 14分别设置在两个相邻的电芯的表面上， 两 个第一导热部件 14的形状都为 U型， 并且两个第一导热部件 14相对设置 且相互卡接， 以使得相邻的两个电芯设置在相对设置的两个第一导热部件 14之间。
图 9示出了根据本申请实施例的电池组的结构示意图。如图 9所示， 根据 本申请的实施例还提供了一种电池组 200， 该电池组 200包括多个上述的电 池 10。 并且电池 10的各种实施方式均可以应用到电池组 200 中， 且不构 成限定。 电池组 200还可以包括第三导热部件 20， 第三导热部件 20与每 个电池 10的第二导热部件 16接触。 由于第三导热部件 20与每个电池 10 的第二导热部件 16接触， 因此可以通过第二导热部件 16向第三导热部件 20 传递热量， 并通过第三导热部件 20进行散热。 在一些实施例中， 第三导热部 件 20的散热方式可以是自然散热、 风冷散热以及液冷散热等散热方式之中的 任意一种。
本申请上述技术方案提供的电池组 200, 通过第一导热部件、 第二导热部 件 16和第三导热部件 20的热量传递， 实现了电池组 200中边缘处的电芯 12 与中心处的电芯 12之间的热量传导， 降低了电池组工作时中心区域处的热量 集中效应，减小了中心处的电芯 12与位于边缘处的电芯 12之间的温差， 实现 了电池组 200中的多个电芯 12之间的温度均衡，进而能够提升电池组的寿命。 另一方面， 在进行电池组组装时， 可以以每个电池 10为单位进行组装， 因此 本申请提供的电池组 200更加便于组装，能够避免组装过程中由于电池组太重 而导致组装、 移动困难的问题。
在一些实施例中， 电池 10分为第一电池 101和第二电池 103， 第一电 池 101靠近电池组 200的外侧， 第一电池 101包括多个第一电芯 121， 第 二电池 103包括多个第二电芯 123， 第一电池 101 的多个第一电芯 121 的 数量可以与第二电池 103的多个第二电芯 123的数量不同。 在其它实施例 中， 第一电池 101的多个第一电芯 121的数量可以与第二电池 103的多个 第二电芯 123的数量相同。可以根据电池在各个电芯 12的厚度方向 T上的 传热温差来配置每个电池 10中的电芯 12的数量， 以使得电池组 200中的 每个电池 10之间的温度差异最小。 与现有的电池组相比较， 在电池组内的 电芯数量越多的情况下， 本申请提供的电池组的效果将会越优异。 尤其在 电池组以较大倍率进行充放电时， 更能够体现本申请的电池组的效果。
在一个实施例中， 继续参考图 9所示， 多个电池 10在各个电芯 12的 厚度方向 T上堆叠设置。 图 9中示出的电池 10的数量仅是示例性的， 电池 组 200中的电池 10可以是任何其它适当的数量。 在一个实施例中， 在各个 电芯 12的宽度方向 W上， 还可以设置有堆叠设置的其它多个电池。 应当 理解，本申请的电池组 200中的多个电池 10可以以任何适当的排列方式进 行布置， 本申请对此并不构成限定。
在一个实施例中， 本申请的电池组 200还可以包括第二导热胶， 第二 导热胶设置在第三导热部件 20与每个第二导热部件 16之间。 可以通过在 第三导热部件 20与多个电池 10之间预留 1mm至 2mm的间距以填充第二 导热胶， 以使得第二导热胶具有在 1mm至 2mm范围内的厚度， 从而能够 保证第二导热胶与第三导热部件 20和多个电池 10的良好接触， 能够并且 具有足够的压缩率。
在一些实施例中， 第二导热胶可包括导热硅胶、 单组份导热泥和双组 份导热凝胶等。 在一个实施例中， 第二导热胶可以采用硅橡胶类材料， 并 在硅橡胶内填充高导热的金属氧化物或其它高导热颗粒， 以能够同时获得 硅橡胶的弹性及填充颗粒的导热性能。
在一个实施例中， 第三导热部件 20的形状可以为 U型。 U型的第三导 热部件 20构成电池组 200的至少部分第一侧面 202、 第二侧面 204以及至 少部分第三侧面 206 , 第一侧面 202、 第二侧面 204和第三侧面 206依次连 接。 在一个实施例中， 电池组 200的第一侧面 202、 第二侧面 204和第三 侧面 206可以分别是在多个电芯 12的宽度方向 W上延伸的第一侧面 202、 在厚度方向 T上延伸的第二侧面 204、 以及与第一侧面 202相对设置的第 三侧面 206。 在其它实施例中， 第二导热部件 16可以构成为电池组 200的 其它表面。 在一个实施例中， 在各个电芯 12的长度方向 L上， 第三导热部 件 20的边缘超出电芯 12的边缘。 在其它实施例中， 在各个电芯 12的长度 方向 L上， 第三导热部件 20的边缘可以不超出电芯 12的边缘。 在一些实 施例中， 第三导热部件 20的材料可以是有利于散热的任何适当的材料， 例 如， 第三导热部件 20的材料包括铝、 不锈钢、 碳钢之中的任意一种。
图 10示出了根据本申请实施例的电池组中的多个电池的结构分解示意图。 如图 10所示， 电池组 200还可以包括第二缓冲片 30， 第二缓冲片 30位于 多个电池 10之间， 以通过第二缓冲片 30连接相邻的两个电池 10。 可以通 过在第二缓冲片 30上设置粘接胶来使得第二缓冲片 30与相应的电池 10固 定连接。 第二缓冲片 30可以采用例如泡棉等具有缓冲作用的材料。通过在 相邻的两个电池 10之间设置第二缓冲片 30来实现电池 10之间的连接，可 以为软包电芯预留出膨胀空间。
以上所述仅为本申请的较佳实施例而已， 并不用以限制本申请， 凡在本申 请的精神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本申 请的保护范围之内。

Claims

权 利 要 求 书
1. 一种电池， 其特征在于， 包括：
电芯， 所述电芯为多个且堆叠设置；
至少两个第一导热部件， 每个所述第一导热部件位于一个所述电芯的 表面；
第二导热部件， 构成所述电池的部分表面， 且至少两个所述第一导热 部件接触所述第二导热部件。
2. 根据权利要求 1所述的电池， 其特征在于， 所述第二导热部件的形 状为 U型， 所述第二导热部件构成所述电池的至少部分第一表面、 第二表 面以及至少部分第三表面， 所述第一表面、 所述第二表面和所述第三表面 依次连接。
3. 根据权利要求 1所述的电池， 其特征在于， 所述第二导热部件包括 第一导热子部件和第二导热子部件， 其中， 所述第一导热子部件和所述第 二导热子部件的形状都为 L型， 所述第一导热子部件构成所述电池的第一 表面和第二表面的第一部分， 所述第二导热子部件构成所述电池的所述第 二表面的第二部分和第三表面。
4. 根据权利要求 3所述的电池， 其特征在于， 所述第二表面的第一部 分和所述第二表面的第二部分的面积之和大于等于所述第二表面面积的
90%。
5. 根据权利要求 1所述的电池， 其特征在于， 至少一个所述第一导热 部件的形状为 U型， 至少一个所述第一导热部件位于相应电芯的至少部分 第一表面、 第二表面以及至少部分第三表面， 所述电芯的所述第一表面、 所述第二表面和所述第三表面依次连接。
6. 根据权利要求 5所述的电池， 其特征在于， 两个所述第一导热部件 分别设置在两个相邻的所述电芯的表面上， 并且两个所述第一导热部件相 对设置且相互卡接。
7. 根据权利要求 1所述的电池， 其特征在于， 所述第一导热部件为多 个， 每个所述电芯的表面均设置有所述第一导热部件， 每个所述第一导热 部件均接触所述第二导热部件。
8. 根据权利要求 7所述的电池， 其特征在于， 还包括导热胶， 所述导 热胶设置在所述第二导热部件与每个所述第一导热部件之间。
9. 根据权利要求 7所述的电池， 其特征在于， 在所述电芯的长度方向 上， 多个所述第一导热部件的边缘相互对齐。
10. 根据权利要求 1 所述的电池， 其特征在于， 还包括缓冲片， 所述 缓冲片位于多个所述电芯之间。
1 1. 一种电池组， 其特征在于， 包括： 多个如权利要求 1 -10任一项所 述的电池及第三导热部件，所述第三导热部件接触每个所述第二导热部件。
12. 根据权利要求 1 1所述的电池组，其特征在于，还包括第二导热胶， 所述第二导热胶设置在所述第三导热部件与每个所述第二导热部件之间。
13. 根据权利要求 11所述的电池组， 其特征在于， 多个所述电池在所 述电池的厚度方向上堆叠设置。
14. 根据权利要求 13所述的电池组， 其特征在于， 所述第三导热部件 的形状为 U型， 所述第三导热部件构成电池组的至少部分第一侧面、 第二 侧面以及至少部分第三侧面， 所述第一侧面、 所述第二侧面和所述第三侧 面依次连接。
15. 根据权利要求 1 1所述的电池组，其特征在于，还包括第二缓冲片， 所述第二缓冲片位于多个所述电池之间。
16. 根据权利要求 11所述的电池组， 其特征在于， 所述电池分为第一 电池和第二电池， 所述第一电池位于所述电池组的外侧；
所述第一电池包括多个第一电芯， 所述第二电池包括多个第二电芯， 所述多个第一电芯的数量与所述多个第二电芯的数量不同。
PCT/CN2020/076973 2019-02-27 2020-02-27 电池以及电池组 WO2020173481A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP20712822.4A EP3731335A4 (en) 2019-02-27 2020-02-27 BATTERY AND BATTERY PACK

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201920248840.8 2019-02-27
CN201920248840.8U CN209641785U (zh) 2019-02-27 2019-02-27 电池以及电池组

Publications (1)

Publication Number Publication Date
WO2020173481A1 true WO2020173481A1 (zh) 2020-09-03

Family

ID=68494683

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/076973 WO2020173481A1 (zh) 2019-02-27 2020-02-27 电池以及电池组

Country Status (4)

Country Link
US (1) US20200274211A1 (zh)
EP (1) EP3731335A4 (zh)
CN (1) CN209641785U (zh)
WO (1) WO2020173481A1 (zh)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN209641785U (zh) * 2019-02-27 2019-11-15 东莞新能源科技有限公司 电池以及电池组
KR20210069974A (ko) * 2019-12-04 2021-06-14 에스케이이노베이션 주식회사 셀케이스유닛 및 이를 포함하는 배터리 모듈
DE102021113418A1 (de) 2021-05-25 2022-12-01 Lisa Dräxlmaier GmbH Batteriemodul für eine traktionsbatterie eines elektrofahrzeugs, traktionsbatterie für ein elektrofahrzeug und verfahren zum herstellen einer traktionsbatterie

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012204129A (ja) * 2011-03-25 2012-10-22 Hitachi Maxell Ltd 組電池
CN202651312U (zh) * 2012-06-18 2013-01-02 北京戴尔维动力电池系统科技有限公司 一种低温差锂电池装置
CN105518928A (zh) * 2014-11-10 2016-04-20 深圳市大疆创新科技有限公司 电池及其热管理装置、以及具有该电池的uav
DE102015014034A1 (de) * 2015-10-30 2017-05-04 Daimler Ag Batterie
CN207217718U (zh) * 2017-09-14 2018-04-10 微宏动力系统（湖州）有限公司 一种电池模块
CN209641785U (zh) * 2019-02-27 2019-11-15 东莞新能源科技有限公司 电池以及电池组

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2153487B1 (de) * 2007-04-05 2013-06-19 Behr GmbH & Co. KG Elektrochemische energiespeichereinheit mit kühlvorrichtung
WO2014045855A1 (ja) * 2012-09-20 2014-03-27 Ｎｅｃエナジーデバイス株式会社 電池パック
KR20150115250A (ko) * 2014-04-03 2015-10-14 주식회사 엘지화학 내부 텐션-바를 포함하는 배터리 팩
CN208127371U (zh) * 2018-02-02 2018-11-20 北京海博思创科技有限公司 一种电池热管理系统

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012204129A (ja) * 2011-03-25 2012-10-22 Hitachi Maxell Ltd 組電池
CN202651312U (zh) * 2012-06-18 2013-01-02 北京戴尔维动力电池系统科技有限公司 一种低温差锂电池装置
CN105518928A (zh) * 2014-11-10 2016-04-20 深圳市大疆创新科技有限公司 电池及其热管理装置、以及具有该电池的uav
DE102015014034A1 (de) * 2015-10-30 2017-05-04 Daimler Ag Batterie
CN207217718U (zh) * 2017-09-14 2018-04-10 微宏动力系统（湖州）有限公司 一种电池模块
CN209641785U (zh) * 2019-02-27 2019-11-15 东莞新能源科技有限公司 电池以及电池组

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3731335A4 *

Also Published As

Publication number Publication date
EP3731335A4 (en) 2021-03-10
CN209641785U (zh) 2019-11-15
US20200274211A1 (en) 2020-08-27
EP3731335A1 (en) 2020-10-28

Similar Documents

Publication Publication Date Title
WO2020173481A1 (zh) 电池以及电池组
JP5540070B2 (ja) 電池モジュール及び電池パック
JP5055198B2 (ja) 電池モジュール
JP6920660B2 (ja) 電池モジュール
JP7451703B2 (ja) 電池パック及び電気自動車
US11217835B2 (en) Heat dissipating structure and battery comprising the same
JP5478791B2 (ja) 組電池
KR20200021609A (ko) 배터리 모듈 및 이의 제조방법
TWI463724B (zh) 導熱結構
JP2013505535A (ja) 新規の構造を有する放熱部材を含んでいるバッテリーモジュール並びに中型又は大型のバッテリーパック
CN111033876A (zh) 电池组
KR102555088B1 (ko) 이차 전지의 제조 방법
US8703321B2 (en) Secondary battery pack
WO2017064978A1 (ja) 電池モジュール
CN111063959A (zh) 电动车辆及其电池模组
KR102472909B1 (ko) 배터리 팩
JP2018018629A (ja) 電池モジュール
JPH1092394A (ja) モノブロック電池
CN216085095U (zh) 电池外壳、电池模组及电池包
WO2024146154A1 (zh) 电池模组及电池包
JP5154706B1 (ja) 組電池及び組電池モジュール
WO2020156370A1 (zh) 电池组
WO2020134978A1 (zh) 电池模组
WO2020133674A1 (zh) 电池模组以及电池包
JP2013041741A (ja) 二次電池

Legal Events

Date Code Title Description
ENP Entry into the national phase

Ref document number: 2020712822

Country of ref document: EP

Effective date: 20200331

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20712822

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE