CN114976396A - Battery module and electric vehicle - Google Patents

Battery module and electric vehicle Download PDF

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Publication number
CN114976396A
CN114976396A CN202210740297.XA CN202210740297A CN114976396A CN 114976396 A CN114976396 A CN 114976396A CN 202210740297 A CN202210740297 A CN 202210740297A CN 114976396 A CN114976396 A CN 114976396A
Authority
CN
China
Prior art keywords
battery
module
core
cell
top cover
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202210740297.XA
Other languages
Chinese (zh)
Inventor
曾勇
阮祖云
李德壮
黄红光
华超
曾维权
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GAC Aion New Energy Automobile Co Ltd
Original Assignee
GAC Aion New Energy Automobile Co Ltd
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 GAC Aion New Energy Automobile Co Ltd filed Critical GAC Aion New Energy Automobile Co Ltd
Priority to CN202210740297.XA priority Critical patent/CN114976396A/en
Publication of CN114976396A publication Critical patent/CN114976396A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/147—Lids or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/186—Sealing members characterised by the disposition of the sealing members
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/197—Sealing members characterised by the material having a layered structure
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/198—Sealing members characterised by the material characterised by physical properties, e.g. adhesiveness or hardness
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • 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

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The application relates to a battery module and an electric vehicle, wherein the battery module comprises a module shell and a plurality of electric core components; the module shell comprises a plurality of mounting plates, wherein a battery cell mounting groove is formed between the two mounting plates, and the battery cell mounting grooves are sequentially arranged along the length direction of the module shell and are used for mounting a plurality of battery cell assemblies sequentially arranged along the length direction of the module shell; each electric core component comprises a top cover, a sealing insulating film and a battery stack core, wherein the sealing insulating film forms an installation cavity matched with the battery stack core, the battery stack core is placed in the installation cavity, the top cover is positioned at the top of the battery stack core, and when the battery stack core is placed in the installation cavity, the top cover is sealed with the sealing insulating film. This application can be glued under the prerequisite of fixing electric core subassembly not needing to use curb plate, end plate, structure, realizes fixing a plurality of electric core subassembly's integration. Compared with the prior art, the device has the advantages of being better in volume and space utilization rate, better in weight utilization rate and lower in cost.

Description

Battery module and electric vehicle
Technical Field
The application relates to power battery equipment, particularly, relates to a battery module and electric motor car.
Background
At present, the battery module is mainly divided into three types according to different structures of the single body: cylinder battery module, square soft packet of module and square crust module. The square hard shell module consists of an end plate, an insulating cover, a battery monomer, a cushion pad, a wiring harness isolation plate assembly, an upper cover, a side plate and other parts, and is fixed through structural glue, welding and other modes.
For the square hard shell module, the square hard shell module is formed by stacking the electric cores together, and the module is fixed by means of structural adhesive, end side plate welding and the like, so that the integration strength of the components of the square hard shell module is limited by end side plate welding and structural adhesive bonding, wherein the higher the structural strength is, the thicker the end side plate is required, the more the structural adhesive is required, and further the integration volume utilization rate and the weight utilization rate of the module are limited.
Disclosure of Invention
The application aims at providing a battery module and an electric vehicle, and the battery module and the electric vehicle are used for realizing the integration fixation of a plurality of electric core assemblies on the premise that the electric core assemblies are not fixed by using side plates, end plates and structural glue. Compared with the prior art, the device has the advantages of being better in volume and space utilization rate, better in weight utilization rate and lower in cost.
In a first aspect, the present invention provides a battery module, including: the module comprises a module shell and a plurality of electric core components;
the module shell comprises a plurality of mounting plates, a battery cell mounting groove is formed between the two mounting plates, and the battery cell mounting grooves are sequentially arranged along the length direction of the module shell and are used for mounting the battery cell assemblies sequentially arranged along the length direction of the module shell;
every electric core subassembly includes that top cap, sealing insulation film and battery stack the core, sealing insulation film form with the core assorted installation cavity is folded to the battery, the battery stack the core place in the installation cavity, the top cap is located the top of core is folded to the battery, and when the battery stack the core put into during the installation cavity, the top cap with sealing insulation film is sealed.
In this application first aspect, because the module casing has included a plurality of mounting panel, two form electric core mounting groove between the mounting panel, and a plurality of electric core mounting groove is followed the length direction of module casing arranges in proper order, so, can install through electric core mounting groove and follow the length direction of module casing arranges in proper order a plurality of electric core subassembly to integrated a plurality of electric core subassembly is integrated and is formed the battery module. Further, each electric core assembly comprises a top cover, a sealing insulating film and a battery stack core, wherein the sealing insulating film forms an installation cavity matched with the battery stack core, and the battery stack core is placed in the installation cavity, so that the battery stack core can be isolated and insulated from the battery stack cores of other electric core assemblies through the sealing insulating film. Further, the sealing property of the cell stack in each cell module can be ensured by sealing the top cover with the sealing insulating film.
Compared with the prior art, the prior art needs to adopt the side plates, the end plates and the structural adhesive to integrate a plurality of cell assemblies together, and needs to form a sealing space through the side plates, the end plates and the structural adhesive to ensure the sealing performance of the cell assemblies. However, this application can be in the same place a plurality of electric core subassemblies are integrated through the module casing to form confined space through seal insulation film and top cap, in order to guarantee electric core subassembly's leakproofness, and then need not adopt curb plate, end plate and structure to glue a plurality of electric core subassemblies and be in the same place, and need not glue through curb plate, end plate and structure and form confined space, in order to guarantee electric core subassembly's leakproofness. Consequently, compare with prior art, curb plate, end plate and structure glue can not be adopted in this application, and then can save curb plate, end plate and the shared space is glued to the structure, and then can improve battery module's volume utilization. In addition, because this application can not adopt curb plate, end plate and structure to glue, consequently its holistic weight is littleer, and then can improve battery module's weight utilization ratio. On the other hand, because this application can not adopt curb plate, end plate and structure to glue, consequently it can save the cost of adopting curb plate, end plate and structure to glue and pay to have manufacturing cost's advantage.
In an alternative embodiment, the battery cell assembly further comprises a heat-fusible edge seal routed around a bottom edge of the top cover to fill a gap between the top cover and the sealing insulating film when the battery stacked cell is placed in the mounting cavity.
In this alternative embodiment, since the cell assembly further includes a heat-fusible edge seal, and the heat-fusible edge seal is disposed around the bottom edge of the top cover, the heat-fusible edge seal can fill the gap between the top cover and the sealing insulating film when the battery stacked cell is placed in the mounting cavity, so that the top cover is hermetically connected to the sealing insulating film.
In an alternative embodiment, the sealing insulating film is an aluminum plastic film.
In this alternative embodiment, the aluminum plastic film is used as the sealing insulating film, and the puncture resistance, the electrolyte stability, and other properties of the battery module can be improved by utilizing the advantages of the aluminum plastic film such as the puncture resistance and the electrolyte stability.
In an optional embodiment, the width of the top cover is greater than the width of the notch of the battery cell mounting groove, and the length of the top cover is greater than the length of the notch of the battery cell mounting groove, so that when the battery cell assembly is mounted in the battery cell mounting groove, the notch of the battery cell mounting groove abuts against the top cover.
In this optional embodiment, since the width of the top cover is greater than the width of the notch of the battery cell mounting groove, and the length of the top cover is greater than the length of the notch of the battery cell mounting groove, in this way, when the battery cell assembly is mounted in the battery cell mounting groove, the notch of the battery cell mounting groove abuts against the top cover, so that the notch of the battery cell mounting groove is conveniently connected with the top cover in a sealing manner.
In an alternative embodiment, the top cover and the notch of the cell mounting groove are sealed by laser welding.
In an optional embodiment, the top cover is welded with the notch of the battery cell mounting groove by laser, so that the top cover can be ensured to be connected with the battery cell mounting groove in a sealing manner.
In an optional embodiment, the core assembly further includes a positive post and a negative post, the positive post is electrically connected to the positive electrode of the battery stack core and extends from the top of the top cover, and the negative post is electrically connected to the negative electrode of the battery stack core and extends from the top of the top cover.
In this optional embodiment, a plurality of stacked battery cells can be connected in series or in parallel through the positive pole posts and the negative pole posts by electrically connecting the positive pole posts with the positive poles of the stacked battery cells and extending from the top of the top cover, and the negative pole posts are electrically connected with the negative poles of the stacked battery cells and extending from the top of the top cover.
In an alternative embodiment, the battery module further comprises a bus bar for connecting the positive posts of the two electric core assemblies and the negative posts for connecting the two electric core assemblies.
In this alternative embodiment, the positive posts of two of the cell assemblies can be connected and the negative posts of two of the cell assemblies can be connected by a bus bar, so that a plurality of cell stacks can be connected in series or in parallel.
In an optional embodiment, the module housing further comprises a total positive output pole and a total negative output pole, and the total positive output pole and the total negative output pole are both electrically connected to the bus bar.
In an alternative embodiment, the battery module can be integrally connected to an external power source through the total positive output electrode and the total negative output electrode.
In an alternative embodiment, the module housing further comprises mounting structures arranged at the sides of the module housing.
In the present alternative embodiment, the battery module may be mounted to the vehicle body by a mounting structure provided at a side of the module case.
In a second aspect, the present invention provides an electric vehicle including the battery module according to any one of the preceding embodiments.
Because the electric motor car of this application second aspect has the battery module of this application first aspect, consequently, this electric motor car of this application second aspect compares with current electric motor car, has that volume space utilization is more excellent, weight utilization is more excellent, the advantage that the cost is lower.
Additional features and advantages of the present application will be described in detail in the detailed description which follows.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of an electric core assembly according to an embodiment of the present application;
FIG. 3 is a schematic structural diagram of another electrical core assembly provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of another battery module according to an embodiment of the present disclosure.
Icon: 1-a module housing; 101-a mounting structure; 102-total positive output pole; 103-total negative output pole; 2-an electrical core assembly; 201-sealing insulating film; 202-a top cover; 203-negative pole; 204-positive pole; 205-a battery stack core; 206-hot melting and edge sealing; 3-bus bar.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
In the description of the present application, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when using, and are only used for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements that are referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is also to be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, fig. 2, fig. 3, and fig. 4, fig. 1 is a schematic structural diagram of a battery module according to an embodiment of the present disclosure, fig. 2 is a schematic structural diagram of a battery core assembly according to an embodiment of the present disclosure, fig. 3 is a schematic structural diagram of another battery core assembly according to an embodiment of the present disclosure, and fig. 4 is a schematic structural diagram of another battery module according to an embodiment of the present disclosure. As shown in fig. 1, 2, 3, and 4, the battery module according to the embodiment of the present application includes: the module comprises a module shell 1 and a plurality of electric core assemblies 2; wherein, module casing 1 includes a plurality of mounting panel, forms electric core mounting groove between two mounting panels, and a plurality of electric core mounting groove is arranged along module casing 1's length direction in proper order for a plurality of electric core subassembly 2 that the length direction of installing along module casing 1 arranged in proper order.
In the embodiment of the present application, each cell assembly 2 includes a top cap 202, a sealing insulating film 201, and a cell stack 205, the sealing insulating film 201 forms a mounting cavity matching the cell stack 205, the cell stack 205 is placed in the mounting cavity, the top cap 202 is positioned on top of the cell stack 205, and the top cap 202 is sealed with the sealing insulating film 201 when the cell stack 205 is placed in the mounting cavity.
In the embodiment of the present application, since module casing 1 includes a plurality of mounting panel, form electric core mounting groove between two mounting panels to a plurality of electric core mounting groove is arranged along module casing 1's length direction in proper order, so, can install a plurality of electric core subassembly 2 of arranging in proper order along module casing 1's length direction through electric core mounting groove, thereby integrated a plurality of electric core subassembly 2 is integrated and is formed the battery module. Further, since each of the cell modules 2 includes the top cover 202, the sealing insulating film 201, and the cell stack 205, the sealing insulating film 201 forms a mounting cavity matching the cell stack 205, and the cell stack 205 is placed in the mounting cavity, and thus, the cell stack 205 can be insulated from the cell stacks 205 of other cell modules 2 by the sealing insulating film 201. Further, by sealing the top cover 202 with the sealing insulating film 201, the sealability of the cell stack 205 in each cell module 2 can be ensured.
Compared with the prior art, the prior art needs to adopt the side plates, the end plates and the structural adhesive to integrate a plurality of electric core assemblies 2 together, and needs to form a sealing space through the side plates, the end plates and the structural adhesive to ensure the sealing performance of the electric core assemblies 2. However, this application can be integrated together a plurality of electric core subassemblies 2 through module casing 1 to form the confined space through seal insulating film 201 and top cap 202, with the leakproofness of guaranteeing electric core subassembly 2, and then need not adopt curb plate, end plate and structure to glue a plurality of electric core subassemblies 2 and integrate together, and need not glue through curb plate, end plate and structure and form the confined space, with the leakproofness of guaranteeing electric core subassembly 2. Therefore, compared with the prior art, this application embodiment can not adopt curb plate, end plate and structure to glue, and then can save curb plate, end plate and the shared space of structure glue, and then can improve battery module's volume utilization. In addition, because this application embodiment can not adopt curb plate, end plate and structure to glue, consequently its holistic weight is littleer, and then can improve battery module's weight utilization ratio. On the other hand, because this application embodiment can not adopt curb plate, end plate and structure to glue, therefore it can save the cost that adopts curb plate, end plate and structure to glue and pay to have manufacturing cost's advantage.
In an alternative embodiment, the battery cell assembly 2 further includes a hot melt edge seal 207, the hot melt edge seal 207 being disposed around the bottom edge of the top cover 202 to fill the gap between the top cover 202 and the sealing membrane 201 when the battery cell stack 205 is placed into the mounting cavity.
In this alternative embodiment, since the core assembly 2 further includes the heat-fusible edge seal 207, and the heat-fusible edge seal 207 is disposed around the bottom edge of the top cover 202, the heat-fusible edge seal 207 can fill the gap between the top cover 202 and the sealing insulating film 201 when the battery stack core 205 is placed in the installation cavity, so that the top cover 202 and the sealing insulating film 201 are hermetically connected.
In an alternative embodiment, the sealing insulating film 201 is an aluminum plastic film.
In this alternative embodiment, the sealant insulating film 201 is made of an aluminum plastic film, and the puncture resistance, the electrolyte stability, and other properties of the battery module can be improved by utilizing the advantages of the aluminum plastic film such as the puncture resistance and the electrolyte stability.
In an alternative embodiment, the width of the top cover 202 is greater than the width of the notch of the cell mounting groove, and the length of the top cover 202 is greater than the length of the notch of the cell mounting groove, so that when the cell assembly 2 is mounted in the cell mounting groove, the notch of the cell mounting groove abuts against the top cover 202.
In this optional embodiment, because the width of top cap 202 is greater than the notch width of electric core mounting groove, and the length of top cap 202 is greater than the notch length of electric core mounting groove, so, when electric core subassembly 2 is installed in electric core mounting groove, the notch of electric core mounting groove supports top cap 202 to be convenient for with the notch of electric core mounting groove and top cap 202 sealing connection.
In an alternative embodiment, the top cover 202 is sealed with the cell mounting groove notch by laser welding.
In an alternative embodiment, the top cover 202 is welded to the notch of the battery cell mounting groove by laser, so that the top cover 202 and the battery cell mounting groove can be connected in a sealing manner.
In an alternative embodiment, the electric core assembly 2 further comprises a positive post 204 and a negative post 203, the positive post 204 is electrically connected to the positive electrode of the battery stack 205 and extends from the top of the top cover 202, and the negative post 203 is electrically connected to the negative electrode of the battery stack 205 and extends from the top of the top cover 202.
In this alternative embodiment, a plurality of stacked cells 205 can be connected in series or in parallel through the positive and negative posts 204 and 203 by electrically connecting the positive post 204 with the positive electrode of the stacked cell 205 and extending from the top of the top cover 202 and the negative post 203 with the negative electrode of the stacked cell 205 and extending from the top of the top cover 202.
In an alternative embodiment, the battery module further includes a bus bar 3, the bus bar 3 being used to connect the positive posts 204 of the two cell assemblies 2, and the negative posts 203 being used to connect the two cell assemblies 2.
In the present alternative embodiment, the positive posts 204 of the two cell assemblies 2 and the negative posts 203 of the two cell assemblies 2 can be connected by the bus bar 3, so that the plurality of cell stacks 205 are connected in series or in parallel.
In an alternative embodiment, the module housing 1 further includes a total positive output electrode 102 and a total negative output electrode 103, and both the total positive output electrode 102 and the total negative output electrode 103 are electrically connected to the bus bar 3.
In an alternative embodiment, the battery module as a whole can be connected to an external power source through the total positive output electrode 102 and the total negative output electrode 103.
In an alternative embodiment, the module housing 1 further comprises a mounting structure 101, the mounting structure 101 being arranged at a side of the module housing 1.
In the present alternative embodiment, the battery module can be mounted to the vehicle body by the mounting structure 101 provided at the side of the module case 1.
In addition, the embodiment of the application also provides an electric vehicle which comprises the battery module in any one of the above embodiments.
Because the electric motor car of this application embodiment has the battery module of this application embodiment, consequently, the electric motor car of this application second aspect compares with current electric motor car, has that volume space utilization is more excellent, weight utilization is more excellent, cost lower advantage.
It should be noted that the features of the embodiments in the present application may be combined with each other without conflict.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a battery module which characterized in that, battery module includes: the module comprises a module shell and a plurality of electric core components;
the module shell comprises a plurality of mounting plates, a battery cell mounting groove is formed between the two mounting plates, and the battery cell mounting grooves are sequentially arranged along the length direction of the module shell and are used for mounting the battery cell assemblies sequentially arranged along the length direction of the module shell;
every electric core subassembly includes that top cap, sealing insulation film and battery stack the core, sealing insulation film form with the core assorted installation cavity is folded to the battery, the battery stack the core place in the installation cavity, the top cap is located the top of core is folded to the battery, and when the battery stack the core put into during the installation cavity, the top cap with sealing insulation film is sealed.
2. The battery module of claim 1, wherein the cell assembly further comprises a heat-fused edge seal routed around a bottom edge of the top cover to fill a gap between the top cover and the sealing insulative film when the battery stack cell is placed in the mounting cavity.
3. The battery module according to claim 2, wherein the sealing insulating film is an aluminum plastic film.
4. The battery module of claim 2, wherein the top cover has a width that is greater than a width of a slot opening of the cell mounting groove and a length that is greater than a length of the slot opening of the cell mounting groove, such that the slot opening of the cell mounting groove abuts the top cover when the cell assembly is mounted in the cell mounting groove.
5. The battery module of claim 2, wherein the top cover is sealed to the slot of the cell mounting groove by laser welding.
6. The battery module of claim 2, wherein the core assembly further comprises a positive post electrically connected to a positive electrode of the stack and extending from the top of the top cap, and a negative post electrically connected to a negative electrode of the stack and extending from the top of the top cap.
7. The battery module of claim 6, further comprising a bus bar for connecting the positive posts of the two core assemblies and for connecting the negative posts of the two core assemblies.
8. The battery module of claim 7, wherein the module housing further comprises a total positive output pole and a total negative output pole, both of which are electrically connected to the buss bars.
9. The battery module of claim 1, wherein the module housing further comprises mounting structures disposed on the sides of the module housing.
10. An electric vehicle, characterized in that the electric vehicle comprises the battery module according to any one of claims 1 to 9.
CN202210740297.XA 2022-06-28 2022-06-28 Battery module and electric vehicle Pending CN114976396A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210740297.XA CN114976396A (en) 2022-06-28 2022-06-28 Battery module and electric vehicle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210740297.XA CN114976396A (en) 2022-06-28 2022-06-28 Battery module and electric vehicle

Publications (1)

Publication Number Publication Date
CN114976396A true CN114976396A (en) 2022-08-30

Family

ID=82965105

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210740297.XA Pending CN114976396A (en) 2022-06-28 2022-06-28 Battery module and electric vehicle

Country Status (1)

Country Link
CN (1) CN114976396A (en)

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