CN214898789U

CN214898789U - Battery module assembly and battery module

Info

Publication number: CN214898789U
Application number: CN202023169386.9U
Authority: CN
Inventors: 任杰
Original assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Current assignee: Evergrande New Energy Technology Shenzhen Co Ltd
Priority date: 2020-12-24
Filing date: 2020-12-24
Publication date: 2021-11-26
Anticipated expiration: 2030-12-24

Abstract

The utility model relates to a battery technology field provides an electric core subassembly and battery module, and the electric core subassembly includes two at least electric cores, and each electric core is arranged in proper order and the electricity is connected, and the positive plate of arbitrary adjacent electric core is drawn forth in same sharing positive ear, and/or, and the negative pole piece of arbitrary adjacent electric core is drawn forth in same sharing negative ear. The utility model provides an electric core subassembly, when subsequent group battery module, the same utmost point of each electric core of electric core subassembly only need weld once can, need not weld respectively the anodal ear and the negative pole ear of each electric core, the use of piece that converges has not only been saved, and the cost is reduced, complicated group's process when having simplified follow-up group module or battery package moreover, simplify welding, the assembly, effectively raise the efficiency, and can avoid leading to structure or electricity to connect unstably because of the more use of piece that converges, adaptor, middle utmost point ear.

Description

Battery module assembly and battery module

Technical Field

The utility model relates to a battery technology field especially relates to a battery cell subassembly and battery module.

Background

The battery pack generally comprises a plurality of battery modules, the battery modules comprise a plurality of battery cores, and the battery modules are stacked to form a multi-string and multi-parallel mode so as to meet the use requirements of voltage and capacity.

When the module is formed to a plurality of electric core, the positive negative pole ear that draws forth respectively to single electric core both ends is usually required to carry out relevant welding, for example when a plurality of electric cores of needs parallelly connected, need carry out mutual welding to the utmost point ear of each electric core, still need weld utmost point ear to the copper bar when forming the module, every utmost point ear of every electric core all need carry out once more or weld many times after drawing forth promptly, and need adopt piece that converges such as a plurality of copper bars, lead to the technology complicacy, to the welding, it is unfriendly in groups, assembly efficiency is low, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an electric core subassembly to need all weld every utmost point ear of each electric core and lead to the technical problem of inefficiency when solving among the prior art electric core group module.

In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides an electricity core subassembly, electricity core subassembly includes two at least electric cores, and each electric core is arranged in proper order and is connected electrically, and the positive plate of arbitrary adjacent electric core is drawn forth in same sharing positive ear, and/or, the negative pole piece of arbitrary adjacent electric core is drawn forth in same sharing negative ear.

The utility model discloses in foretell technical scheme, following technological effect or advantage have at least: the utility model provides an electricity core subassembly, through setting up two at least electric cores, and each electric core is arranged in proper order and the electricity is connected, in order to form the electric core group that has two at least electric cores, the positive plate of each electric core is drawn forth in the negative pole piece of same sharing positive ear and/or each electric core simultaneously and is drawn forth in same sharing negative pole ear, not only do benefit to and form the parallelly connected electric core group of each electric core, and when subsequent group battery module of constituteing, only need to weld sharing positive ear and/or sharing negative pole ear can, the same utmost point of each electric core of electricity core subassembly only need weld once can, need not weld respectively positive ear and the negative pole ear of each electric core, the use of the piece that converges such as copper bar has not only been saved, and the cost is reduced, and complicated group process when follow-up group becomes module or battery package has been simplified, the welding is simplified, the assembly, effectively improve efficiency, and can avoid because of converging because of the piece, The structure or the electric connection is unstable due to the use of the adaptor and the intermediate lug.

In one embodiment, the common positive tab is integrally formed with at least one positive plate of the battery cell; and/or the shared negative electrode lug is integrally formed with at least one negative electrode sheet of one of the battery cells.

By adopting the technical scheme, the common positive tab can be formed by directly leading out the positive plate of at least one of the battery cells, the common negative tab can be formed by directly leading out the negative plate of at least one of the battery cells, and the independent common positive tab and the independent common negative tab can be omitted, so that the connection between the common positive tab and the positive plate of the battery cell can be simplified, and the connection between the common negative tab and the negative plate of the battery cell can be simplified.

In one embodiment, the common positive tab has at least two positive tab terminals, each of which is connected to a positive tab of a cell; and/or the shared negative electrode tab is provided with at least two negative electrode tab leading-out ends, and each negative electrode tab leading-out end is connected with a negative electrode sheet of a battery cell.

By adopting the technical scheme, the leading-out ends of the anode lugs sharing the anode lugs are respectively connected with the anode plates of the battery cells, so that the connection of the anode plates of a plurality of battery cells through the same sharing anode lug is facilitated; the lead-out ends of the cathode lugs sharing the cathode lug are respectively connected with the cathode pieces of the battery cells, so that the cathode pieces of the battery cells are connected through the same shared cathode lug.

In one embodiment, the connection part of the positive tab leading-out end and the positive plate of the battery cell is encapsulated in the aluminum-plastic film of the battery cell; and/or the joint of the negative electrode tab leading-out end and the negative plate of the battery cell is encapsulated in the aluminum-plastic film of the battery cell.

By adopting the technical scheme, after the connection of the leading-out ends of the positive lugs sharing the positive lugs and the positive plate of the battery cell and/or the connection of the leading-out ends of the negative lugs sharing the negative lugs and the negative plate of the battery cell, the battery cell is encapsulated by the aluminum plastic film, and the connection between the leading-out ends of the positive lugs and the positive plate of the battery cell and/or the connection between the leading-out ends of the negative lugs and the negative plate of the battery cell can be protected.

In one embodiment, the number of the battery cells is two, and the common positive tab includes: a positive tab body segment; one end of the first positive lug connecting section is connected to one end of the positive lug main body section, and the other end of the first positive lug connecting section is connected to a positive plate of one of the battery cells; and one end of the second positive lug connecting section is connected to the other end of the positive lug main body section, and the other end of the second positive lug connecting section is connected to a positive plate of another electric core.

Through adopting above-mentioned technical scheme, do benefit to two parallelly connected formation electric core groups of electric core, because the anodal ear of sharing includes anodal ear main part section and connects respectively in the anodal ear linkage segment of first anodal ear and the anodal ear linkage segment of second at anodal ear main part section both ends, do benefit to and can form the anodal ear of sharing through same slice utmost point ear, not only the shape is regular, is convenient for be connected with external parts, and can need not additionally to carry on utmost point ear again and cut reduce cost.

In one embodiment, the number of the battery cells is two, and the common negative electrode tab includes: a negative tab main body section; one end of the first negative electrode tab connecting section is connected to one end of the negative electrode tab main body section, and the other end of the first negative electrode tab connecting section is connected to the negative electrode sheet of one of the battery cells; and one end of the second negative electrode tab connecting section is connected to the other end of the negative electrode tab main body section, and the other end of the second negative electrode tab connecting section is connected to the negative electrode sheet of the other electric core.

Through adopting above-mentioned technical scheme, do benefit to two parallelly connected formation electric core groups of electric core, because sharing negative pole ear includes negative pole ear main part section and connects respectively in the first negative pole ear linkage segment and the second negative pole ear linkage segment at negative pole ear main part section both ends, do benefit to and can form sharing negative pole ear through same slice utmost point ear, not only the shape is regular, is convenient for be connected with external parts, and can need not additionally to carry out utmost point ear again and cut reduce cost.

In one embodiment, the cell assembly includes an adhesive layer adhered between two adjacent cells.

Through adopting above-mentioned technical scheme, it is fixed to carry out the adhesion through the adhesive linkage to two adjacent electric cores to be convenient for become electric core group with each electric core looks fixed connection, can prevent between the electric core relative movement and influence and sharing anodal ear and/or sharing between the negative pole ear be connected.

In one embodiment, the cell assembly includes a fixing structure for fixing each cell, and the fixing structure is disposed at the periphery of each cell.

Through adopting above-mentioned technical scheme, be convenient for each electric core pile up the back and set up in each electric core periphery through fixed knot structure and can make each electric core looks fixed connection to form electric core group, can prevent relative movement between the electric core and influence and sharing anodal ear and sharing between the negative pole ear be connected.

In one embodiment, the fixing structure is a clamping member, the clamping member has a cavity, and each battery cell is limited in the cavity of the clamping member.

Through adopting above-mentioned technical scheme, each electric core is located each electric core periphery and is spacing each electric core in the cavity through the hoop member cover after being convenient for each electric core piles up to make each electric core looks fixed connection in order to form electric core group, it is more convenient to the fixed connection of each electric core.

Another object of the utility model is to provide a battery module, battery module includes: a module housing; and the electric core assembly of any one of the above embodiments, the electric core assembly is arranged in the module shell.

The utility model discloses foretell technical scheme owing to adopted foretell battery pack spare, can save the use of converging pieces such as copper bar to can simplify the complicated process in groups when assembling or forming the battery module, simplify welding, assembly, raise the efficiency, also need not additionally carry out utmost point ear again and cut reduce cost.

Still another object of the present invention is to provide a battery pack, which includes the above battery module.

The utility model discloses foretell technical scheme owing to adopted foretell battery module, can save the use of converging pieces such as copper bar to can simplify the complicated process in groups when assembling or forming battery module and battery package, simplify welding, assembly, raise the efficiency.

It is yet another object of the present invention to provide a vehicle including the above battery pack.

The utility model discloses foretell technical scheme, owing to adopted foretell battery package, the process in groups when assembling or constituteing battery module and battery package is more simplified, and efficiency is higher to the cost is reduced, thereby can correspond and reduce vehicle cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an electrical core assembly according to an embodiment of the present invention;

fig. 2 is a schematic view of a partial structure of the common positive tab and the battery cell in fig. 1;

fig. 3 is a second schematic structural diagram of an electrical core assembly according to an embodiment of the present invention;

fig. 4 is a schematic partial structure diagram of the common negative electrode tab and the battery cell in fig. 3;

fig. 5 is a schematic structural view of the electric core assembly provided by the embodiment of the present invention after the clamping member is removed;

fig. 6 is a schematic structural diagram of an electrical core assembly according to another embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

100. an electrical core assembly; 10. an electric core; 20. sharing the positive tab; 30. sharing a negative electrode lug; 201. a positive tab leading-out terminal; 301. a negative tab lead-out terminal; 21. a positive tab body segment; 22. a first positive tab connection section; 23. a second positive tab connection section; 31. a negative tab main body section; 32. a first negative tab connection segment; 33. a second negative tab connection segment; 40. an adhesive layer; 50. fixing a structural member; 51. a cinch.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

For convenience of description, terms and explanations that may be referred to in the present invention are as follows:

positive plate: the battery cell comprises a current collector and a positive electrode material layer, wherein the positive electrode material layer is formed by coating positive electrode slurry on the surface of the current collector and then rolling the current collector by a compression roller, and the positive electrode material layer comprises an active substance, a conductive agent and a bonding agent.

And (3) negative plate: the battery cell comprises a current collector and a negative electrode material layer, wherein the negative electrode material layer is formed by coating negative electrode slurry on the surface of the current collector and rolling by a compression roller, and the negative electrode material layer comprises an active substance, a conductive agent and a bonding agent.

Current collector: the structure or part for collecting the current is made of copper or aluminum by a conventional material.

And (3) pole lug: the metal conductor leads out the positive electrode and the negative electrode from the battery cell, the positive electrode is led out to be a positive electrode lug, and the negative electrode is led out to be a negative electrode lug; the tab may be formed integrally with the current collector and cut, or the tab may be separately attached to the current collector.

Referring to fig. 1 and fig. 3, an embodiment of the present invention provides an electric core assembly 100 applied to a battery module, where the electric core assembly 100 includes at least two electric cores 10, which may be two or more than two, each electric core 10 is sequentially arranged and electrically connected, each electric core 10 may be mutually and fixedly connected to prevent relative movement between each electric core 10, each electric core 10 has an anode plate and a cathode plate, the anode plate of any adjacent electric core 10 is led out from the same common anode tab 20, and/or the cathode plate of any adjacent electric core 10 is led out from the same common cathode tab 30, so that at least two electric cores 10 are combined to form the electric core assembly 100 having the common anode tab 20 and/or the common cathode tab 30. The positive plate of any adjacent battery cell 10 is led out from the same common positive tab 20, and may be formed by connecting an independent positive tab with the positive tab of the battery cell 10 and leading out, or may be formed by directly extending and leading out the positive tab of the battery cell 10; the negative electrode tabs of any adjacent battery cells 10 are led out from the same common negative electrode tab 30, and may be led out by connecting the independent negative electrode tabs with the negative electrode tabs of the battery cells 10, or may be formed by directly extending and leading out the negative electrode tabs of the battery cells 10. Only the positive electrode tab of each cell 10 may be led out of the same common positive electrode tab 20, and the negative electrode tabs of each cell 10 are led out of one negative electrode tab; only the negative electrode tab of each cell 10 may be led out of the same common negative electrode tab 30, and the positive electrode tabs of each cell 10 are led out of one negative electrode tab respectively; the positive electrode tabs of the battery cells 10 may be led out from the same common positive electrode tab 20, and the negative electrode tabs of the battery cells 10 may be led out from the same common negative electrode tab 30.

The embodiment of the utility model provides an electric core subassembly 100, through setting up two at least electric cores 10, and each electric core 10 arranges in proper order and the electricity is connected, in order to form the electric core group that has two at least electric cores 10, simultaneously each electric core 10's positive plate is drawn forth in same sharing anodal ear 20 and/or each electric core 10's negative pole piece and is drawn forth in same sharing negative pole ear 30, not only do benefit to and form the parallelly connected electric core group of each electric core 10, and when subsequently forming electric core subassembly 100 into the battery module, only need to share anodal ear 20 and/or share negative pole ear 30 weld can, namely same utmost point of each electric core 10 of electric core subassembly 100 only need weld once can, need not weld respectively to anodal ear and the negative pole ear of each electric core 10, not only saved the use of the subassembly that converges such as copper bar, and simplified the complicated process when follow-up forming module or PACK, simplify the welding, The assembly effectively improves efficiency to but reduce cost also can avoid leading to structure or electricity to connect unstably because of the more use of piece, adaptor, middle utmost point ear of converging, also need not additionally to carry out utmost point ear again and cut.

In one embodiment, referring to fig. 2, the common positive tab 20 has at least two positive tab terminals 201, the number of the positive tab terminals 201 is the same as that of the battery cells 10, each positive tab terminal 201 is connected to a positive plate of one of the battery cells 10, and the common positive tab 20 and the positive tab terminals 201 are made of a metal material, such as aluminum. With this configuration, each positive tab terminal 201 of the common positive tab 20 is connected to the positive tab of the battery cell 10, so as to facilitate connection of the positive tabs of the battery cells 10 via the same common positive tab 20, and facilitate connection of the common positive tab 20 independent of the battery cell 10 to the positive tab of the battery cell 10. The positive tab terminals 201 may be integrally formed, or fixedly connected to form a common positive tab 20.

As can be understood, each positive tab leading-out terminal 201 is correspondingly provided with tab glue, so that the positive tab leading-out terminal 201 and the aluminum-plastic film of the battery cell 10 are conveniently connected in a sealing manner through the tab glue, and short circuit between the positive tab leading-out terminal 201 and the aluminum-plastic film of the battery cell 10 is prevented.

In one embodiment, referring to fig. 4, the common negative tab 30 has at least two negative tab terminals 301, the number of the negative tab terminals 301 is the same as the number of the battery cells 10, each negative tab terminal 301 is connected to a negative plate of one battery cell 10, and the common negative tab 30 and the negative tab terminals 301 are made of a metal material, such as nickel or nickel-plated copper. So set up, each negative pole ear leading-out terminal 301 through sharing negative pole ear 30 is connected with the negative pole piece of electric core 10 respectively to do benefit to and connect the negative pole piece of a plurality of electric cores 10 through same sharing negative pole ear 30, do benefit to and adopt sharing negative pole ear 30 independent of electric core 10 and be connected with the negative pole piece of electric core 10. The negative electrode tab terminals 301 may be integrally formed or fixedly connected to form the common negative electrode tab 30.

As can be understood, tab glue is correspondingly disposed on each negative tab leading-out terminal 301, so that the negative tab leading-out terminal 301 and the aluminum-plastic film of the battery cell 10 are connected in a sealing manner through the tab glue, and a short circuit between the negative tab leading-out terminal 301 and the aluminum-plastic film of the battery cell 10 is prevented.

Further, in an embodiment, referring to fig. 2, a connection portion of the positive tab leading-out terminal 201 and the positive plate of the battery cell 10 is encapsulated in the aluminum plastic film of the battery cell 10. By such arrangement, after each positive tab leading-out end 201 of the common positive tab 20 is connected (e.g., welded) with the positive plate of the battery cell 10, the battery cell 10 is encapsulated by the aluminum-plastic film, and the joint of the positive tab leading-out end 201 and the positive plate of the battery cell 10 can be protected.

Further, in an embodiment, referring to fig. 4, a connection portion of the negative tab leading-out terminal 301 and the negative plate of the battery cell 10 is encapsulated in the aluminum-plastic film of the battery cell 10. With such an arrangement, after the negative electrode tab leading-out ends 301 of the common positive electrode tab 20 are connected (e.g., welded) with the negative electrode sheet of the battery cell 10, the battery cell 10 is encapsulated by an aluminum-plastic film, and the joint of the negative electrode tab leading-out ends 301 and the negative electrode sheet of the battery cell 10 can be protected.

The formation method or structure of the common positive electrode tab 20 is not limited to the above-described method or structure. In another embodiment, referring to fig. 6, the common positive tab 20 is integrally formed with at least one positive plate of one of the battery cells 10, for example, the common positive tab 20 may be integrally formed with the positive plate of one of the battery cells 10, that is, the common positive tab 20 is formed by directly extending and leading out the positive plate of the battery cell 10 and then connecting the positive plate with the positive plates of the other battery cells 10, or the common positive tab 20 may be formed by integrally forming the positive plates of two battery cells 10 and connecting the positive plates with the common positive tab 20. With such an arrangement, it is not necessary to separately connect the common positive tab 20 with the positive plates of the battery cells 10 and then lead out the common positive tab 20, thereby simplifying the connection process between the common positive tab 20 and the positive plates of the battery cells 10. In another embodiment, please refer to fig. 6, the common negative electrode tab 30 is integrally formed with at least one of the negative electrode sheets of the battery cells 10, for example, the common negative electrode tab 30 may be integrally formed with the negative electrode sheet of one of the battery cells 10, that is, the common negative electrode tab 30 is formed by directly extending and leading out the negative electrode sheet of the battery cell 10 and then connecting the negative electrode sheet with the negative electrode sheets of the other battery cells 10, or the common negative electrode tabs 30 may be formed by integrally forming the negative electrode sheets of two battery cells 10 and connecting the negative electrode sheets with the negative electrode sheets. With such an arrangement, the individual common negative electrode tabs 30 do not need to be connected with the negative electrode pieces of the battery cell 10 respectively to be led out, and the connection procedure between the common negative electrode tabs 30 and the negative electrode pieces of the battery cell 10 can be simplified.

In an embodiment, please refer to fig. 1 and fig. 2, the number of the battery cells 10 is two, the common positive tab 20 includes a positive tab body section 21, a first positive tab connection section 22, and a second positive tab connection section 23, the positive tab body section 21 serves as a body portion of the common positive tab 20, and is convenient for the battery module 100 to be connected to an external electrical conductor such as a copper bar when the battery module is assembled or assembled, one end of the first positive tab connection section 22 is connected to one end of the positive tab body section 21, the other end of the first positive tab connection section 22 is connected to a positive tab of one of the battery cells 10, one end of the second positive tab connection section 23 is connected to the other end of the positive tab body section 21, and the other end of the second positive tab connection section 23 is connected to a positive tab of another battery cell 10; an included angle may be formed between the first positive tab connection section 22 and the positive tab main body section 21, and an included angle may be formed between the second positive tab connection section 23 and the positive tab main body section 21, so that the first positive tab connection section 22 and the second positive tab connection section 23 are respectively connected with positive tabs of two stacked battery cells 10. So set up, do benefit to two parallelly connected formation electric core groups of electric core 10, because sharing anodal ear 20 includes anodal ear main part section 21 and connects respectively in the anodal ear linkage segment 22 of first anodal ear linkage segment 22 and the anodal ear linkage segment 23 of second at anodal ear main part section 21 both ends, do benefit to and can form sharing anodal ear through same slice utmost point ear, buckle in order to form first anodal ear linkage segment 22 and the anodal ear linkage segment 23 of second respectively through the relative both ends of sheetmetal for example, part between first anodal ear linkage segment 22 and the anodal ear linkage segment 23 of second forms anodal ear main part section 21, not only the shape is regular, more be close to in electric core 10 and set up, it is little to occupy the exterior, and be convenient for be connected with the external world, and can need not additionally to carry out utmost point ear again, cut electrically conductive part.

In an embodiment, please refer to fig. 3 and 4, the number of the battery cells 10 is two, the common negative electrode tab 30 includes a negative electrode tab main body section 31, a first negative electrode tab connection section 32, and a second negative electrode tab connection section 33, the negative electrode tab main body section 31 serves as a main body portion of the common negative electrode tab 30, and is convenient for being connected to an external conductor such as a copper bar when the battery module 100 is assembled or assembled, one end of the first negative electrode tab connection section 32 is connected to one end of the negative electrode tab main body section 31, the other end of the first negative electrode tab connection section 32 is connected to a negative electrode tab of one of the battery cells 10, one end of the second negative electrode tab connection section 33 is connected to the other end of the negative electrode tab main body section 31, and the other end of the second negative electrode tab connection section 33 is connected to a negative electrode tab of another one of the battery cell 10; an included angle may be formed between the first negative electrode tab connection segment 32 and the negative electrode tab main body segment 31, and an included angle may be formed between the second negative electrode tab connection segment 33 and the negative electrode tab main body segment 31, so that the first negative electrode tab connection segment 32 and the second negative electrode tab connection segment 33 are respectively connected to negative electrode tabs of two stacked battery cells 10. So set up, do benefit to two parallelly connected formation electric core groups of electric core 10, because sharing negative pole ear 30 includes negative pole ear main part section 31 and connects respectively in first negative pole ear linkage segment 32 and the second negative pole ear linkage segment 33 at negative pole ear main part section 31 both ends, do benefit to and can form sharing negative pole ear 30 through same slice utmost point ear, buckle in order to form first negative pole ear linkage segment 32 and second negative pole ear linkage segment 33 respectively in the relative both ends through the sheetmetal for example, part between first negative pole ear linkage segment 32 and the second negative pole ear linkage segment 33 then forms negative pole ear main part section 31, not only the shape is regular, be convenient for be connected with external electrically conductive parts, and can need not additionally to carry out utmost point ear again and cut, and the cost is reduced.

In one embodiment, referring to fig. 6, the cell assembly 100 includes an adhesive layer 40, the adhesive layer 40 is adhered between two adjacent cells 10 to adhere and fix the two cells 10, and the adhesive layer 40 may be glue, double-sided tape, etc., but is not limited thereto, as long as it does not affect the normal operation of the cells 10 and can be an adhesive object capable of adhering and fixing the two cells 10. So set up, it is fixed to carry out the adhesion through adhesive linkage 40 to two adjacent electric cores 10 to be convenient for with each electric core 10 looks fixed connection becomes electric core group, can prevent between electric core 10 relative movement and influence its with sharing anodal ear 20 and sharing between the negative pole ear 30 be connected.

In one embodiment, referring to fig. 1 and fig. 3, the electric core assembly 100 includes a fixing structure 50 for fixing each electric core 10, the fixing structure 50 is disposed at the periphery of each electric core 10, and may be disposed at the periphery of each electric core 10 or at a non-complete circumferential part of each electric core 10, and the fixing structure 50 may be a rope, a sleeve, a plastic clamping member, a structure formed by a plate and a fastener, a structure formed by a rod and a fastener, and the like, but is not limited thereto, as long as the structure does not affect the normal operation of the electric core 10 and can fixedly connect each electric core 10 at the periphery of the electric core 10. So set up, be convenient for each electric core 10 pile up the back and set up in each electric core 10 periphery through fixed structure spare 50 and can make each electric core 10 looks fixed connection to form the electric core group, can prevent that relative movement between electric core 10 from influencing its and sharing between positive electrode tab 20 and the negative electrode tab 30 that shares.

Further, in an embodiment, referring to fig. 1 and fig. 2, the fixing structure 50 is a tightening member 51, the tightening member 51 has a cavity, each battery cell 10 is limited in the cavity of the tightening member 51 to realize relative fixing, and the cavity of the tightening member 51 can be coated on the whole or part of the outer surface of the battery cell group formed by sequentially and adjacently stacking each battery cell 10. The tightening member 51 is a structural member capable of applying a force to each battery cell 10 to limit the battery cell in a cavity formed by the tightening member 51, and may be, for example, a sheath, a heat shrinkable sleeve, a binding rope, a binding wire, or the like, but is not limited thereto, and fig. 1 and 2 show schematic diagrams when the tightening member 51 is a sheath or a heat shrinkable sleeve. So set up, be convenient for each electric core 10 pile up the back and locate each electric core 10 periphery and spacing each electric core 10 in the cavity through binding member 51 cover to make each electric core 10 looks fixed connection in order to form electric core group, more swiftly convenient to each electric core 10's fixed connection, and the steadiness is high.

The embodiment of the utility model provides a still provide a battery module, battery module include module shell and the electric core subassembly 100 of above-mentioned arbitrary embodiment, and electric core subassembly 100 sets up in the module shell.

Because the embodiment of the utility model provides an adopted foretell battery pack subassembly 100, therefore its technical effect that the technical scheme who has above-mentioned battery pack subassembly 100 equally brought can save the use of converging the piece to can simplify the complicated group's process when assembling or forming battery module, simplify welding, assembly, raise the efficiency, also need not additionally carry out utmost point ear again and cut, and reduce cost.

The embodiment of the utility model provides a still provide a battery package, battery package includes foretell battery module. The battery pack can further comprise a box body, and the battery module is arranged in the box body.

Because the embodiment of the utility model provides an adopted foretell battery module, therefore its technical effect that the technical scheme who has above-mentioned electric core subassembly 100 equally brought can save the use of converging the piece to can simplify the complicated process in groups when assembling or constituteing battery module and battery package, simplify welding, assembly, raise the efficiency.

The embodiment of the utility model provides a still provide a vehicle, the vehicle includes foretell battery package.

Because the embodiment of the utility model provides an adopted foretell battery package, therefore its technical effect that the technical scheme who has above-mentioned electric core subassembly 100 equally brought, the process in groups when assembling or constituteing battery module and battery package is more simplified, and efficiency is higher to the cost is reduced, thereby can correspond and reduce vehicle cost.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An electric core component, its characterized in that: the electric core assembly comprises at least two electric cores, the electric cores are sequentially arranged and electrically connected, positive plates of any adjacent electric cores are led out of the same common positive lug, and/or negative plates of any adjacent electric cores are led out of the same common negative lug.

2. The electric core assembly according to claim 1, wherein: the common positive tab is integrally formed with at least one positive plate of the battery cell; and/or the common negative electrode lug is integrally formed with at least one negative electrode sheet of the battery cell.

3. The electric core assembly according to claim 1, wherein: the common positive tab is provided with at least two positive tab leading-out ends, and each positive tab leading-out end is connected with a positive plate of the battery cell;

and/or the shared negative electrode tab is provided with at least two negative electrode tab leading-out ends, and each negative electrode tab leading-out end is connected with a negative electrode sheet of the battery cell.

4. The electrical core assembly of claim 3, wherein: the joint of the positive lug leading-out end and the positive plate of the battery cell is encapsulated in the aluminum-plastic film of the battery cell;

and/or the joint of the negative electrode tab leading-out end and the negative plate of the battery cell is encapsulated in the aluminum-plastic film of the battery cell.

5. The battery pack assembly of claim 1, wherein the number of cells is two, and the common positive tab comprises:

a positive tab body segment;

one end of the first positive lug connecting section is connected to one end of the positive lug main body section, and the other end of the first positive lug connecting section is connected to a positive plate of one of the battery cells; and

and one end of the second positive lug connecting section is connected to the other end of the positive lug main body section, and the other end of the second positive lug connecting section is connected to the other positive plate of the battery cell.

6. The battery pack of claim 1, wherein the number of cells is two, and the common negative tab comprises:

a negative tab main body section;

one end of the first negative electrode tab connecting section is connected to one end of the negative electrode tab main body section, and the other end of the first negative electrode tab connecting section is connected to a negative electrode piece of one of the battery cells; and

and one end of the second negative electrode tab connecting section is connected to the other end of the negative electrode tab main body section, and the other end of the second negative electrode tab connecting section is connected to the other negative electrode piece of the battery cell.

7. The electrical core assembly of any one of claims 1 to 6, wherein: the battery cell assembly comprises an adhesive layer, and the adhesive layer is adhered between two adjacent battery cells.

8. The electrical core assembly of any one of claims 1 to 6, wherein: the battery cell assembly comprises fixing structural members for fixing the battery cells, and the fixing structural members are arranged on the periphery of the battery cells.

9. The electrical core assembly of claim 8, wherein: the fixed structure part is a clamping part, the clamping part is provided with a cavity, and each battery cell is limited in the cavity of the clamping part.

10. The utility model provides a battery module which characterized in that, battery module includes:

a module housing; and

the electrical core assembly of any one of claims 1 to 9, disposed in the module housing.