CN206602130U - A kind of layer-built battery group, and cell assembly, battery module and module group - Google Patents
A kind of layer-built battery group, and cell assembly, battery module and module group Download PDFInfo
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- CN206602130U CN206602130U CN201720091975.9U CN201720091975U CN206602130U CN 206602130 U CN206602130 U CN 206602130U CN 201720091975 U CN201720091975 U CN 201720091975U CN 206602130 U CN206602130 U CN 206602130U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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Abstract
A kind of layer-built battery group, the cell in it includes forward and reverse monomer stacked on top of one another, and forward and reverse monomer is that inner containment has three edge plastic-aluminum film bodies of electrode plates, and lug is positive and negative relative when stacked on top of one another；Forward and reverse monomer is connected to constitute layer-built battery group with detection collector, plus plate current-collecting body, negative current collector, the layer-built battery group is connected to constitute cell assembly with battery shim pack, the cell assembly mutually cooperates to constitute battery module with battery case, and the battery module mutually cooperates with constituting module group with separator, stock in-and-out bolt.The design can not only be applicable that three edge soft-package batteries, simple in construction, cost are relatively low, and possess that stable heat dissipation channel, adjustability are relatively strong, be of wide application.
Description
Technical field
The utility model is related to a kind of soft-package battery and its applied in groups, more particularly to a kind of layer-built battery group, and battery
Aggregate, battery module and module group, it is particularly applicable on the basis of it can assemble three edge soft-package batteries, simplify structure and set
Meter, strengthens adjustability, in order to assemble follow-up cell assembly, battery module, module group, so as to expand application.
Background technology
Compared to cylindrical lithium battery, soft-package battery quality, energy density are high, and shaping is fast and thermal diffusivity is good, more and more to use
In batteries of electric automobile group.But soft package lithium battery mechanical strength itself is weaker, easy deformation when being squeezed, battery pole ear is easy by external force
Tear, meanwhile, it is not easy to form stable heat dissipation channel when directly in groups.
Application publication number is 300N102473879100, and data of publication of application is the application for a patent for invention on May 23rd, 2012
Disclose the manufacture method of a kind of battery pack and this battery pack, the battery pack have it is multiple by accommodate be laminated with it is multiple secondary
The battery component of the layered product of battery, the battery pack includes：Multiple battery components, respectively including being laminated with multiple secondary electricity
The layered product in pond, a pair of output are sub and for detecting the terminal voltage of secondary cell and with the specified of a pair of output
The voltage detection terminal of rated current more than electric current, and bus.Although this is designed to reduce is contained in structure for detection
Into the quantity of the voltage detecting line of the voltage of each secondary cell of each battery component of battery pack, but still there is following defect：
First, the design, which is only applicable to surrounding, the soft-package battery of flange, only so could surrounding flange
It is upper to punch respectively to be attached, and at present on the market common soft-package battery then battery core is included in a piece of aluminum plastic film doubling
Form, only front flange and side flange（That is three edge soft-package batteries）, cannot be attached in corner punching, reduce its application
Scope；
Secondly, the cell assembly of the elementary cell in the design, i.e., one includes four cells, and not only structure is answered
It is miscellaneous, and including cell quantity it is more, limit expansion, be unfavorable for carrying out Optional assembling to meet a variety of applications
Demand；
Again, the housing in the design includes upper and lower two parts, needs upper and lower casing to be engaged during assembling, not only ties
Structure is complicated, and manufacturing cost is higher, and adjustability is weaker, is unfavorable for follow-up further assembling, such as to housing battery carry out group
Dress.
The content of the invention
The purpose of this utility model be overcome that complicated, application present in prior art is narrower, adjustability compared with
There is provided a kind of simple in construction, application relatively stronger layer-built battery group of wide, adjustability, and battery collection with problem for weak defect
Fit, battery module and module group.
To realize object above, technical solution of the present utility model is：A kind of layer-built battery group, including collector with
Two cells being overlapped mutually, and cell is connected with collector；
Described two cells are respectively the consistent positive monomer of structure, reverse monomer, and reverse monomer is positive monomer
Gained after 180 degree after upset；The positive monomer, reverse monomer are that inner containment has the plastic-aluminum film body of electrode plates, the aluminium
The top and its side of plastic film body be formed with it is corresponding top flange, side flange, and top flange on be provided with overhanging anode ear,
Negative electrode lug with electrode plates to be connected；The positive monomer, the stacked system of reverse monomer to be stacked on top of one another, positive monomer
The negative electrode lug of the reverse monomer of anode ear correspondence, the anode ear of the reverse monomer of negative electrode lug correspondence of positive monomer；
The collector include detection collector, plus plate current-collecting body, negative current collector, the detection collector the inner with
The negative electrode lug of positive monomer, the anode ear of reverse monomer are connected, and the outer end of detection collector extends to the outside of top flange, just
The inner of pole collector is connected with the anode ear of positive monomer, and the outer end of plus plate current-collecting body extends to the outside of top flange, bears
The inner negative electrode lug with reverse monomer of pole collector is connected, and the outer end of negative current collector extends to the outside of top flange, and
Detect that the outer end of collector is located between plus plate current-collecting body outer end, negative current collector outer end.
The plastic-aluminum film body is that a piece of aluminum plastic film doubling is formed so that electrode plates are included in it, meanwhile, top flange, side are convex
Edge carries out correspondence thermal welding for the top margin of aluminum plastic film, side after doubling and formed.
It is convex that the top flange of the positive monomer is divided into left top flange, middle top flange, right top successively by negative electrode lug, anode ear
Edge, and left top flange, right top flange, the length of middle top flange increase successively；Negative electrode lug, middle top flange are handed in the positive monomer
The place of connecing is arranged above as the anode ear of reverse monomer, anode ear in the positive monomer, right top flange junction just on
Side is provided with the negative electrode lug of reverse monomer；
The inner of the detection collector is base, the interior vertical edge of inspection in Z-type structure, including the inspection being sequentially connected with being pushed up in inspection
The upper and lower ends of vertical edge are connected with the inner of top margin in base in inspection, inspection respectively in side, inspection, in inspection the outer end of top margin then with inspection
The outer end for surveying collector is connected, and base is connected with the negative electrode lug of positive monomer in the inspection, top margin and reverse monomer in inspection
Anode ear be connected；The inner of the plus plate current-collecting body be Z-type structure, including be sequentially connected just interior base, just interior vertical edge
With just interior top margin, the inner of the upper and lower ends of just interior vertical edge respectively with just interior base, just interior top margin is connected, just interior top margin it is outer
End is then connected with the outer end of plus plate current-collecting body, and just interior base is connected with the anode ear of positive monomer；The negative pole currect collecting
The inner of body is connecting plate, and the connecting plate is connected with the negative electrode lug of reverse monomer；The outer end of the detection collector, positive pole collection
The outer end of fluid, the outer end of negative current collector are all L-type structures.
A kind of cell assembly；The cell assembly includes battery shim pack and above-mentioned layer-built battery group；
The battery shim pack includes the first battery pad, the second battery pad, the 3rd battery pad and the 4th battery pad
Piece；The second battery pad, the 3rd battery pad, the 4th battery pad are all plate profile structure, all including intermediate plate and its two
The connected first member plate in end, right end plate；The first battery pad is U-type groove structure, including be sequentially connected a upper plate, in one
Plate and a lower plate, the upper and lower ends of plate are vertical with the outer end of a upper plate, a lower plate respectively in one is connected, and in one plate middle part
Offer successively positive terminal, voltage detection terminal, negative terminal with the outer end with plus plate current-collecting body, detection collector it is outer
End, the outer end of negative current collector connect one to one；
The bottom surface of one upper plate is in contact with the top surface of the 4th battery pad, the bottom surface of the 4th battery pad, the 3rd electricity
The top flange of reverse monomer, the bottom surface of the 3rd battery pad, the top surface of the second battery pad are clamped between the top surface of pond pad
Between be clamped with the top flange of positive monomer, the bottom surface of the second battery pad is in contact with the top surface of a lower plate.
On the positive monomer push up flange left and right ends offer respectively pushed up on positive left hole, positive right hole, reverse monomer it is convex
The left and right ends of edge offer anti-left hole, anti-right hole, the second battery pad, the 3rd battery pad, the 4th battery pad respectively
Two left pins, three left hole, four left pins, the second battery pad, the 3rd battery pad, the 4th are disposed with the first member plate of piece
Two right pins, three right hole, four right pins are disposed with the right end plate of battery pad；
The two left pin, positive left hole, three left hole, anti-left hole, four left pins are sequentially inserted into connection from the bottom to top, and described two is right
Pin, positive right hole, three right hole, anti-right hole, four right pins are sequentially inserted into connection from the bottom to top.
The second battery pad, the 3rd battery pad, the intermediate plate of the 4th battery pad are all type structure, intermediate plate
On evagination position be respectively two convex bodys, three convex bodys, four convex bodys, be clamped with plus plate current-collecting body between two convex body, three convex bodys
Outer end, detect collector outer end, three convex body be sandwiched in the outer end of plus plate current-collecting body, detect collector outer end between,
Outer end, the outer end of negative current collector of detection collector are clamped between three convex body, four convex bodys.
On the intermediate plate of the 4th battery pad spill is respectively offered on the position of the four convex body left and right sides
The convex buckle with the corresponding clamping of spill neck progress is provided with neck, the bottom surface of a upper plate.
A kind of battery module；The battery module includes battery case and above-mentioned cell assembly；
The battery case includes front shroud, back shroud and hollow middle box body, and the rear and front end of the middle box body is opened
Mouth carries out closing with front shroud, back shroud respectively and is connected, and positive terminal sub-aperture, detection terminal are offered in the middle part of the front shroud
Hole, negative pole end sub-aperture to be inserted correspondingly with the positive terminal on cell assembly, voltage detection terminal, negative terminal
Enter to coordinate, the tail end of the cell assembly is in contact with the one side of the spacer pad of set in middle box body, insulation, locating pad
The another side of block is in contact with back shroud, and the inner chamber of spacer pad and middle box body is interference fit.
Radiating fin is provided with the left and right sides of the middle box body；The front shroud, the manufacture material of back shroud are
Stainless steel, aluminium or ambroin, the manufacture material of the spacer pad is ceramics or ambroin.
A kind of module group；The module group includes separator, stock in-and-out bolt and at least two above-mentioned battery modules,
The separator is hollow tubular structure, is provided with the annular projection of evagination in the middle part of separator, the annular projection with it is adjacent
Battery module between be formed with heat dissipation channel；
The corner of the middle box body respectively offers a box body through hole, and the left and right ends of the spacer pad respectively offer one
Individual cushion block through hole, the left and right ends of the cell assembly respectively offer an aggregate through hole, and the separator passes box body
Be fixed, or be fixed after passing box body through hole, cushion block through hole after through hole, aggregate through hole, and the inner chamber of separator with
The outer gusset of stock in-and-out bolt is connected；
One aggregate through hole includes two hollow posts, three hollow holes and four hollow posts, the second battery pad
It is each provided with two hollow posts on the first member plate of piece, right end plate, is each provided with the first member plate of the 3rd battery pad, right end plate
Four hollow posts are each provided with one three hollow hole, the first member plate of the 4th battery pad, right end plate.
Compared with prior art, the beneficial effects of the utility model are：
1st, in a kind of layer-built battery group of the utility model, and cell assembly, battery module and module group, with layer-built battery
Group is elementary cell, and it only includes positive, reverse two cells, and both are formed by connecting after being laminated with collector, can not only
Suitable for three most in the market edge soft-package batteries, and original creation design is carried out to collector with simpler, quick
Positive, reverse two cells are connected as one, more optimizedly, possess very strong expansibility after connection, can enter
Row is combined to meet various follow-up assembling demands, such as cell assembly, battery module, module group.Therefore, this practicality is new
Type can not only be applicable three edge soft-package batteries, simple in construction, and adjustability relatively strong, application is wider.
2nd, in a kind of layer-built battery group of the utility model, and cell assembly, battery module and module group, with layer-built battery
Group is elementary cell, meanwhile, during cell assembly, battery module, module group is assembled into, respectively to battery pad
Group, battery case, separator have carried out original creation design, are not only satisfied with the assembling that can be realized instantly, also require to meet follow-up
Expansion assembling, possess very strong adjustability, so as to expand application to the full extent.Therefore, it is of the present utility model can
Tonality is very strong, is of wide application.
3rd, in a kind of layer-built battery group of the utility model, and cell assembly, battery module and module group, battery case includes
Front shroud, back shroud and hollow middle box body, the opening of the rear and front end of the middle box body are entered with front shroud, back shroud respectively
Row closing connection, the interior intracavitary of middle box body tail end is provided with the spacer pad of interference fit, and the design can not only be beneficial to three edges
The assembling of soft-package battery（It cannot be punched in corner）, and it is simple in construction, it is avoided that the engaging up and down used in the prior art
Caused complicated edge rolls tightly fixed technical barrier each other, reduces cost, in addition, spacer pad can also prevent battery collection
Fit movement in use, raising uses reliability.Therefore, the utility model can not only be applicable three edge soft-package batteries, can
By property, stronger and simple in construction, cost is relatively low.
4th, in a kind of layer-built battery group of the utility model, and cell assembly, battery module and module group, in separator
Portion is provided with the annular projection of evagination, and heat dissipation channel is formed between the annular projection and adjacent battery module, in use, ring
Depending on the raised specific thickness of shape is according to radiating requirements.Therefore, the utility model possesses stable heat dissipation channel.
Brief description of the drawings
Fig. 1 is the structural representation of positive monomer in the utility model.
Fig. 2 is the structural representation of stacking battery pack in the utility model.
Fig. 3 is Fig. 2 assembling schematic diagram.
Fig. 4 is Fig. 3 upward view.
Fig. 5 is the structural representation of cell assembly in the utility model.
Fig. 6 is Fig. 5 assembling schematic diagram.
Fig. 7 is the structural representation of the first battery pad in Fig. 6.
Fig. 8 is the structural representation of the 3rd battery pad in Fig. 6.
Fig. 9 is the structural representation of the 4th battery pad in Fig. 6.
Figure 10 is the structural representation of battery module in the utility model.
Figure 11 is Figure 10 assembling schematic diagram.
Figure 12 is the assembling schematic diagram of spacer pad in Figure 10.
Figure 13 is the structural representation of module group in the utility model.
Figure 14 is the assembling schematic diagram of separator in Figure 13.
In figure：Layer-built battery group 100, aluminum plastic film 1, cell 2, positive monomer 21, positive left hole 211, positive right hole 212,
Reverse monomer 22, anti-left hole 221, anti-right hole 222, plastic-aluminum film body 23, top flange 24, left top flange 241, middle top flange 242, the right side
Top flange 243, side flange 25, anode ear 26, negative electrode lug 27, collector 3, detection collector 31, the interior base 311 of inspection, inspection are interior perpendicular
Top margin 313, plus plate current-collecting body 32, just interior base 321, just interior vertical edge 322, just interior top margin 323, negative current collector in side 312, inspection
33rd, connecting plate 331；
Plate 412, a lower plate in cell assembly 200, battery shim pack 4, the first battery pad 41, a upper plate 411, one
413rd, positive terminal 414, voltage detection terminal 415, negative terminal 416, convex buckle 417, the second battery pad 42, two left pins
421st, two right pins 422, two convex bodys 423, the 3rd battery pad 43, three left hole 431, three right hole 432, three convex bodys 433, the 4th battery
Pad 44, four left pins 441, four right pins 442, four convex bodys 443, spill neck 444, intermediate plate 45, first member plate 46, right end plate 47；
Battery module 300, battery case 5, front shroud 51, positive terminal sub-aperture 511, test side sub-aperture 512, negative pole end sub-aperture
513rd, back shroud 52, middle box body 53, box body through hole 531, radiating fin 532, spacer pad 54, cushion block through hole 541, separator 6,
Annular projection 61, stock in-and-out bolt 7, aggregate through hole 8, two hollow posts 81, three hollow holes 82, four hollow posts 83.
Embodiment
The utility model is described in further detail below in conjunction with brief description of the drawings and embodiment.
Referring to Fig. 1 to Figure 14, a kind of layer-built battery group, including collector 3 and two cells 2 being overlapped mutually, and
Cell 2 is connected with collector 3；
Described two cells 2 are respectively the consistent positive monomer 21 of structure, reverse monomer 22, and reverse monomer 22 is just
Gained after 180 degree after being overturn to monomer 21；The positive monomer 21, reverse monomer 22 are that inner containment has the aluminium of electrode plates
Plastic film body 23, the top and its side of the plastic-aluminum film body 23 are formed with corresponding top flange 24, side flange 25, and in top flange 24
On overhanging anode ear 26, negative electrode lug 27 is provided with electrode plates to be connected；The positive monomer 21, reverse monomer 22
Stacked system is stacked on top of one another, the negative electrode lug 27 of the reverse monomer 22 of the correspondence of anode ear 26 of positive monomer 21, positive monomer 21
The anode ear 26 of the reverse monomer 22 of the correspondence of negative electrode lug 27；
The collector 3 includes detection collector 31, plus plate current-collecting body 32, negative current collector 33, the detection collector
31 the inner is connected with the positive negative electrode lug 27 of monomer 21, the anode ear 26 of reverse monomer 22, detects the outer end of collector 31
The outside of top flange 24 is extended to, the inner of plus plate current-collecting body 32 is connected with the anode ear 26 of positive monomer 21, anode collection
The outer end of body 32 extends to the outside of top flange 24, and the inner negative electrode lug 27 with reverse monomer 22 of negative current collector 33 is connected
Connect, the outer end of negative current collector 33 extends to the outside of top flange 24, and the outer end of detection collector 31 is located at plus plate current-collecting body
Between 32 outer ends, the outer end of negative current collector 33.
The plastic-aluminum film body 23 is that a piece of doubling of aluminum plastic film 1 is formed so that electrode plates are included in it, meanwhile, push up flange
24th, side flange 25 forms for the top margin of aluminum plastic film 1, side progress correspondence thermal welding after doubling.
The top flange 24 of the positive monomer 21 is divided into left top flange 241, middle top successively by negative electrode lug 27, anode ear 26
Flange 242, it is right top flange 243, and it is left top flange 241, it is right top flange 243, it is middle top flange 242 length increase successively；It is described
Negative electrode lug 27 in positive monomer 21, the middle top junction of flange 242 are arranged above as the anode ear 26 of reverse monomer 22, described
Anode ear 26, the negative electrode lug 27 for being arranged above reverse monomer 22 of the right top junction of flange 243 in positive monomer 21；
The inner of the detection collector 31 is base 311, the interior vertical edge 312 of inspection in Z-type structure, including the inspection being sequentially connected
With top margin 313 in inspection, the upper and lower ends of vertical edge 312 are connected with the inner of top margin 313 in base 311 in inspection, inspection respectively in inspection,
The outer end of top margin 313 is then with detecting that the outer end of collector 31 is connected in inspection, and base 311 and positive monomer 21 is negative in the inspection
Lug 27 is connected, and top margin 313 is connected with the anode ear 26 of reverse monomer 22 in inspection；The inner of the plus plate current-collecting body 32 is
Z-type structure, including just interior base 321, just interior vertical edge 322 and the just interior top margin 323 being sequentially connected, just interior vertical edge is about 322
The inner of two ends respectively with just interior base 321, just interior top margin 323 is connected, the outer end of just interior top margin 323 then with plus plate current-collecting body
32 outer end is connected, and just interior base 321 is connected with the anode ear 26 of positive monomer 21；The negative current collector 33 it is interior
Hold as connecting plate 331, the connecting plate 331 is connected with the negative electrode lug 27 of reverse monomer 22；The outer end of the detection collector 31,
The outer end of plus plate current-collecting body 32, the outer end of negative current collector 33 are all L-type structures.
A kind of cell assembly；The cell assembly 200 includes battery shim pack 4 and above-mentioned layer-built battery group 100；
The battery shim pack 4 includes the first battery pad 41, the second battery pad 42, the 3rd battery pad 43 and the 4th
Battery pad 44；The second battery pad 42, the 3rd battery pad 43, the 4th battery pad 44 are all plate profile structure, are all wrapped
Include first member plate 46, right end plate 47 that intermediate plate 45 and its two ends are connected；The first battery pad 41 is U-type groove structure, bag
Include the upper and lower ends of plate 412 in the lower plate 413 of plate 412 and one in the upper plate 411, one being sequentially connected, one respectively with a upper plate
411st, the outer end of a lower plate 413 is vertically connected, and the middle part of plate 412 offers positive terminal 414, voltage detecting successively in one
Terminal 415, negative terminal 416 with the outer end with plus plate current-collecting body 32, detect the outer end of collector 31, negative current collector 33 it is outer
End connects one to one；
The bottom surface of one upper plate 411 is in contact with the top surface of the 4th battery pad 44, the bottom surface of the 4th battery pad 44,
The top flange 24 of reverse monomer 22, the bottom surface of the 3rd battery pad 43, second are clamped between the top surface of 3rd battery pad 43
The top flange 24 of positive monomer 21, bottom surface and the lower plate of the second battery pad 42 are clamped between the top surface of battery pad 42
413 top surface is in contact.
The left and right ends that flange 24 is pushed up on the positive monomer 21 offer positive left hole 211, positive right hole 212 respectively, reversely
The left and right ends that flange 24 is pushed up on monomer 22 offer anti-left hole 221, anti-right hole 222 respectively, the second battery pad 42, the
Two left pins 421, three left hole 431, four left pins are disposed with three battery pads 43, the first member plate 46 of the 4th battery pad 44
441, the second battery pad 42, the 3rd battery pad 43, it is disposed with two in the right end plate 47 of the 4th battery pad 44
Right pin 422, three right hole 432, four right pins 442；
The two left pin 421, positive left hole 211, three left hole 431, anti-left hole 221, four left pins 441 are sequentially inserted into from the bottom to top
Connection, the two right pin 422, positive right hole 212, three right hole 432, anti-right hole 222, four right pins 442 company of being sequentially inserted into from the bottom to top
Connect.
The second battery pad 42, the 3rd battery pad 43, the intermediate plate 45 of the 4th battery pad 44 are all type knot
Evagination position on structure, intermediate plate 45 is respectively two convex bodys 423, three convex bodys 433, four convex bodys 443, and two convex body 423, three is convex
The outer end of plus plate current-collecting body 32 is clamped between body 433, the outer end of collector 31 is detected, three convex body 433 is sandwiched in positive pole collection
The outer end of fluid 32, detect between the outer end of collector 31, detection afflux is clamped between three convex body 433, four convex bodys 443
Outer end, the outer end of negative current collector 33 of body 31.
On the intermediate plate 45 of the 4th battery pad 44 one is respectively offered on the position of the left and right sides of four convex body 443
The convex buckle with the corresponding clamping of the progress of spill neck 444 is provided with individual spill neck 444, the bottom surface of a upper plate 411
417。
A kind of battery module；The battery module 300 includes battery case 5 and above-mentioned cell assembly 200；
The battery case 5 include front shroud 51, back shroud 52 and hollow middle box body 53, the middle box body 53 it is front and rear
The opening at two ends carries out closing with front shroud 51, back shroud 52 respectively and is connected, and the middle part of the front shroud 51 offers positive terminal
Sub-aperture 511, test side sub-aperture 512, negative pole end sub-aperture 513 with the positive terminal 414 on cell assembly 200, voltage detecting
Terminal 415, negative terminal 416 carry out one-to-one insertion and coordinated, in the tail end of the cell assembly 200 and middle box body 53
The one side of spacer pad 54 set, insulation is in contact, and the another side of spacer pad 54 is in contact with back shroud 52, and positioning
The inner chamber of cushion block 54 and middle box body 53 is interference fit.
Radiating fin 532 is provided with the left and right sides of the middle box body 53；The front shroud 51, the system of back shroud 52
Producing material material is stainless steel, aluminium or ambroin, and the manufacture material of the spacer pad 54 is ceramics or ambroin.
A kind of module group；The module group includes the above-mentioned battery mould of separator 6, stock in-and-out bolt 7 and at least two
Block 300, the separator 6 is hollow tubular structure, and the middle part of separator 6 is provided with the annular projection 61 of evagination, the ring-type
Heat dissipation channel is formed between projection 61 and adjacent battery module 300；
The corner of the middle box body 53 respectively offers a box body through hole 531, and the left and right ends of the spacer pad 54 are each
A cushion block through hole 541 is offered, the left and right ends of the cell assembly 200 respectively offer an aggregate through hole 8, described
Separator 6 is fixed after passing box body through hole 531, aggregate through hole 8, or passes after box body through hole 531, cushion block through hole 541
It is fixed, and the inner chamber of separator 6 is connected with the outer gusset of stock in-and-out bolt 7；
One aggregate through hole 8 includes two hollow posts 81, three hollow holes 82 and four hollow posts 83, second
Two hollow posts 81, the first member plate of the 3rd battery pad 43 are each provided with the first member plate 46 of battery pad 42, right end plate 47
46th, it is each provided with three hollow holes 82 in right end plate 47, is respectively set on the first member plate 46 of the 4th battery pad 44, right end plate 47
There are four hollow posts 83.
Principle of the present utility model is described as follows：
Layer-built battery group：Positive monomer, reverse monomer are laminated, after reverse monomer is 180 degree after positive monomer upset
Gained, can both place one layer of anti-skidding isolation plastics/rubber etc material between positive monomer, reverse monomer, can also be mutual
Contact.Layer-built battery group is the most crucial elementary cell of the utility model, and the base of the very strong expansion of the utility model is laid with it
Plinth.
Cell assembly：It is made up of battery shim pack with layer-built battery group, mainly the structure to battery shim pack is carried out
The design of original creation, not only beneficial to itself turning into an individually individual, and beneficial to further battery module, the group of module group
Dress.
Battery module：It is made up of cell assembly, battery case, can is a single product.
Module group：Both can be a battery module for final application state of the present utility model, or one with
On battery module combination, therefore the assembling of battery module each other is considered, therefore, the utility model is to battery pad
Group, battery case, spacer pad, separator, stock in-and-out bolt have carried out corresponding structure design to cooperate so that neither
Cell assembly, the realization of battery module are hindered, is easy to the assembling of module group again.
Embodiment 1：
Referring to Fig. 1 to Figure 14, a kind of layer-built battery group, including collector 3 and two cells 2 being overlapped mutually, and
Cell 2 is connected with collector 3；
Described two cells 2 are respectively the consistent positive monomer 21 of structure, reverse monomer 22, and reverse monomer 22 is just
Gained after 180 degree after being overturn to monomer 21；The positive monomer 21, reverse monomer 22 are that inner containment has the aluminium of electrode plates
Plastic film body 23, the top and its side of the plastic-aluminum film body 23 are formed with corresponding top flange 24, side flange 25, and in top flange 24
On overhanging anode ear 26, negative electrode lug 27 is provided with electrode plates to be connected；The positive monomer 21, reverse monomer 22
Stacked system is stacked on top of one another, the negative electrode lug 27 of the reverse monomer 22 of the correspondence of anode ear 26 of positive monomer 21, positive monomer 21
The anode ear 26 of the reverse monomer 22 of the correspondence of negative electrode lug 27；
The collector 3 includes detection collector 31, plus plate current-collecting body 32, negative current collector 33, the detection collector
31 the inner is connected with the positive negative electrode lug 27 of monomer 21, the anode ear 26 of reverse monomer 22, detects the outer end of collector 31
The outside of top flange 24 is extended to, the inner of plus plate current-collecting body 32 is connected with the anode ear 26 of positive monomer 21, anode collection
The outer end of body 32 extends to the outside of top flange 24, and the inner negative electrode lug 27 with reverse monomer 22 of negative current collector 33 is connected
Connect, the outer end of negative current collector 33 extends to the outside of top flange 24, and the outer end of detection collector 31 is located at plus plate current-collecting body
Between 32 outer ends, the outer end of negative current collector 33.Wherein, the plastic-aluminum film body 23 is a piece of doubling of aluminum plastic film 1 with by electrode plates
Include in it and form, meanwhile, top flange 24, side flange 25 be the top margin of aluminum plastic film 1 after doubling, side carry out correspondence thermal welding and
Into.
Embodiment 2：
Substance be the same as Example 1, difference is：
The top flange 24 of the positive monomer 21 is divided into left top flange 241, middle top successively by negative electrode lug 27, anode ear 26
Flange 242, it is right top flange 243, and it is left top flange 241, it is right top flange 243, it is middle top flange 242 length increase successively；It is described
Negative electrode lug 27 in positive monomer 21, the middle top junction of flange 242 are arranged above as the anode ear 26 of reverse monomer 22, described
Anode ear 26, the negative electrode lug 27 for being arranged above reverse monomer 22 of the right top junction of flange 243 in positive monomer 21；
The inner of the detection collector 31 is base 311, the interior vertical edge 312 of inspection in Z-type structure, including the inspection being sequentially connected
With top margin 313 in inspection, the upper and lower ends of vertical edge 312 are connected with the inner of top margin 313 in base 311 in inspection, inspection respectively in inspection,
The outer end of top margin 313 is then with detecting that the outer end of collector 31 is connected in inspection, and base 311 and positive monomer 21 is negative in the inspection
Lug 27 is connected, and top margin 313 is connected with the anode ear 26 of reverse monomer 22 in inspection；The inner of the plus plate current-collecting body 32 is
Z-type structure, including just interior base 321, just interior vertical edge 322 and the just interior top margin 323 being sequentially connected, just interior vertical edge is about 322
The inner of two ends respectively with just interior base 321, just interior top margin 323 is connected, the outer end of just interior top margin 323 then with plus plate current-collecting body
32 outer end is connected, and just interior base 321 is connected with the anode ear 26 of positive monomer 21；The negative current collector 33 it is interior
Hold as connecting plate 331, the connecting plate 331 is connected with the negative electrode lug 27 of reverse monomer 22；The outer end of the detection collector 31,
The outer end of plus plate current-collecting body 32, the outer end of negative current collector 33 are all L-type structures.
Embodiment 3：
Substance be the same as Example 2, difference is：
A kind of cell assembly；The cell assembly 200 includes battery shim pack 4 and above-mentioned layer-built battery group 100；
The battery shim pack 4 includes the first battery pad 41, the second battery pad 42, the 3rd battery pad 43 and the 4th
Battery pad 44；The second battery pad 42, the 3rd battery pad 43, the 4th battery pad 44 are all plate profile structure, are all wrapped
Include first member plate 46, right end plate 47 that intermediate plate 45 and its two ends are connected；The first battery pad 41 is U-type groove structure, bag
Include the upper and lower ends of plate 412 in the lower plate 413 of plate 412 and one in the upper plate 411, one being sequentially connected, one respectively with a upper plate
411st, the outer end of a lower plate 413 is vertically connected, and the middle part of plate 412 offers positive terminal 414, voltage detecting successively in one
Terminal 415, negative terminal 416 with the outer end with plus plate current-collecting body 32, detect the outer end of collector 31, negative current collector 33 it is outer
End connects one to one；
The bottom surface of one upper plate 411 is in contact with the top surface of the 4th battery pad 44, the bottom surface of the 4th battery pad 44,
The top flange 24 of reverse monomer 22, the bottom surface of the 3rd battery pad 43, second are clamped between the top surface of 3rd battery pad 43
The top flange 24 of positive monomer 21, bottom surface and the lower plate of the second battery pad 42 are clamped between the top surface of battery pad 42
413 top surface is in contact.
Embodiment 4：
Substance be the same as Example 3, difference is：The left and right ends difference of flange 24 is pushed up on the positive monomer 21
Offer on positive left hole 211, positive right hole 212, reverse monomer 22 push up flange 24 left and right ends offer respectively anti-left hole 221,
Anti- right hole 222, the second battery pad 42, the 3rd battery pad 43, sets on the first member plate 46 of the 4th battery pad 44 successively
It is equipped with two left pins 421, three left hole 431, four left pins 441, the second battery pad 42, the 3rd battery pad 43, the 4th battery
Two right pins 422, three right hole 432, four right pins 442 are disposed with the right end plate 47 of pad 44；The two left pin 421, a positive left side
Hole 211, three left hole 431, anti-left hole 221, four left pins 441 are sequentially inserted into connection, the two right pin 422, positive right hole from the bottom to top
212nd, three right hole 432, anti-right hole 222, four right pins 442 are sequentially inserted into connection from the bottom to top.
Embodiment 5：
Substance be the same as Example 3, difference is：The second battery pad 42, the 3rd battery pad the 43, the 4th
The intermediate plate 45 of battery pad 44 is all that the evagination position on type structure, intermediate plate 45 is respectively two convex bodys 423, three convex bodys
433rd, four convex body 443, is clamped with outer end, the detection collector of plus plate current-collecting body 32 between two convex body 423, three convex bodys 433
31 outer end, three convex body 433 is sandwiched between the outer end of plus plate current-collecting body 32, the outer end for detecting collector 31, and described three is convex
Outer end, the outer end of negative current collector 33 of detection collector 31 are clamped between body 433, four convex bodys 443.The 4th battery pad
Respectively offered on a spill neck 444, described one on the position of the left and right sides of four convex body 443 on the intermediate plate 45 of piece 44
The convex buckle 417 with the corresponding clamping of the progress of spill neck 444 is provided with the bottom surface of plate 411.
Embodiment 6：
Substance be the same as Example 3, difference is：
A kind of battery module；The battery module 300 includes battery case 5 and above-mentioned cell assembly 200；
The battery case 5 include front shroud 51, back shroud 52 and hollow middle box body 53, the middle box body 53 it is front and rear
The opening at two ends carries out closing with front shroud 51, back shroud 52 respectively and is connected, and the middle part of the front shroud 51 offers positive terminal
Sub-aperture 511, test side sub-aperture 512, negative pole end sub-aperture 513 with the positive terminal 414 on cell assembly 200, voltage detecting
Terminal 415, negative terminal 416 carry out one-to-one insertion and coordinated, in the tail end of the cell assembly 200 and middle box body 53
The one side of spacer pad 54 set, insulation is in contact, and the another side of spacer pad 54 is in contact with back shroud 52, and positioning
The inner chamber of cushion block 54 and middle box body 53 is interference fit.Wherein, can also be preferably：Set in the left and right sides of the middle box body 53
It is equipped with radiating fin 532；The front shroud 51, the manufacture material of back shroud 52 are stainless steel, aluminium or ambroin, the positioning
The manufacture material of cushion block 54 is ceramics or ambroin.
Embodiment 7：
Substance be the same as Example 6, difference is：
A kind of module group；The module group includes the above-mentioned battery mould of separator 6, stock in-and-out bolt 7 and at least two
Block 300, the separator 6 is hollow tubular structure, and the middle part of separator 6 is provided with the annular projection 61 of evagination, the ring-type
Heat dissipation channel is formed between projection 61 and adjacent battery module 300；
The corner of the middle box body 53 respectively offers a box body through hole 531, and the left and right ends of the spacer pad 54 are each
A cushion block through hole 541 is offered, the left and right ends of the cell assembly 200 respectively offer an aggregate through hole 8, described
Separator 6 is fixed after passing box body through hole 531, aggregate through hole 8, or passes after box body through hole 531, cushion block through hole 541
It is fixed, and the inner chamber of separator 6 is connected with the outer gusset of stock in-and-out bolt 7；One aggregate through hole 8 includes one
On two hollow posts 81, three hollow holes 82 and four hollow posts 83, the first member plate 46 of the second battery pad 42, right end plate 47
Be each provided with two hollow posts 81, be each provided with the first member plate 46 of the 3rd battery pad 43, right end plate 47 one it is three hollow
Four hollow posts 83 are each provided with hole 82, the first member plate 46 of the 4th battery pad 44, right end plate 47.
Claims (10)
1. a kind of layer-built battery group, including collector（3）With two cells being overlapped mutually（2）, and cell（2）With
Collector（3）It is connected, it is characterised in that：
Described two cells（2）The respectively consistent positive monomer of structure（21）, reverse monomer（22）, reverse monomer（22）
For positive monomer（21）Gained after 180 degree after upset；The positive monomer（21）, reverse monomer（22）It is that inner containment has electricity
The plastic-aluminum film body of pole pole piece（23）, the plastic-aluminum film body（23）Top and its side be formed with corresponding top flange（24）, side it is convex
Edge（25）, and in top flange（24）On be provided with overhanging anode ear（26）, negative electrode lug（27）To be connected with electrode plates；Institute
State positive monomer（21）, reverse monomer（22）Stacked system be stacked on top of one another, positive monomer（21）Anode ear（26）Correspondence
Reverse monomer（22）Negative electrode lug（27）, positive monomer（21）Negative electrode lug（27）The reverse monomer of correspondence（22）Anode ear
（26）；
The collector（3）Including detection collector（31）, plus plate current-collecting body（32）, negative current collector（33）, the detection collection
Fluid（31）The inner and positive monomer（21）Negative electrode lug（27）, reverse monomer（22）Anode ear（26）It is connected, detects
Collector（31）Outer end extend to top flange（24）Outside, plus plate current-collecting body（32）The inner and positive monomer（21）Just
Lug（26）It is connected, plus plate current-collecting body（32）Outer end extend to top flange（24）Outside, negative current collector（33）It is interior
End and reverse monomer（22）Negative electrode lug（27）It is connected, negative current collector（33）Outer end extend to top flange（24）It is outer
Portion, and detection collector（31）Outer end be located at plus plate current-collecting body（32）Outer end, negative current collector（33）Between outer end.
2. a kind of layer-built battery group according to claim 1, it is characterised in that：The plastic-aluminum film body（23）For a piece of plastic-aluminum
Film（1）Doubling is formed so that electrode plates are included in it, meanwhile, push up flange（24）, side flange（25）For aluminum plastic film after doubling（1）
Top margin, side carry out correspondence thermal welding form.
3. a kind of layer-built battery group according to claim 1 or 2, it is characterised in that：The positive monomer（21）Top it is convex
Edge（24）By negative electrode lug（27）, anode ear（26）Left top flange is divided into successively（241）, middle top flange（242）, right top flange
（243）, and left top flange（241）, right top flange（243）, middle top flange（242）Length increase successively；The positive monomer
（21）Middle negative electrode lug（27）, middle top flange（242）Junction is arranged above as reverse monomer（22）Anode ear（26）, institute
State positive monomer（21）Middle anode ear（26）, right top flange（243）Junction is arranged above reverse monomer（22）It is negative
Lug（27）；
The detection collector（31）The inner be base in Z-type structure, including the inspection being sequentially connected（311）, inspection in vertical edge
（312）With top margin in inspection（313）, the interior vertical edge of inspection（312）Upper and lower ends respectively with inspection in base（311）, inspection in top margin（313）
The inner be connected, inspection in top margin（313）Outer end then with detection collector（31）Outer end be connected, base in the inspection
（311）With positive monomer（21）Negative electrode lug（27）It is connected, top margin in inspection（313）With reverse monomer（22）Anode ear（26）
It is connected；The plus plate current-collecting body（32）The inner be Z-type structure, including the just interior base being sequentially connected（321）, just interior vertical edge
（322）With just interior top margin（323）, just interior vertical edge（322）Upper and lower ends respectively with just interior base（321）, just interior top margin（323）
The inner be connected, just interior top margin（323）Outer end then with plus plate current-collecting body（32）Outer end be connected, and just interior base
（321）With positive monomer（21）Anode ear（26）It is connected；The negative current collector（33）The inner be connecting plate（331）,
The connecting plate（331）With reverse monomer（22）Negative electrode lug（27）It is connected；The detection collector（31）Outer end, positive pole collection
Fluid（32）Outer end, negative current collector（33）Outer end be all L-type structure.
4. a kind of cell assembly, including multiple battery pads and multiple electrodes pole piece, it is characterised in that：The battery pad structure
Into battery shim pack（4）, the electrode plates composition layer-built battery group（100）；
The battery shim pack（4）Including the first battery pad（41）, the second battery pad（42）, the 3rd battery pad（43）With
4th battery pad（44）；The second battery pad（42）, the 3rd battery pad（43）, the 4th battery pad（44）All it is plate
Type structure, all including intermediate plate（45）And its first member plate that two ends are connected（46）, right end plate（47）；The first battery pad
（41）For U-type groove structure, including the upper plate being sequentially connected（411）, plate in one（412）With a lower plate（413）, plate in one
（412）Upper and lower ends respectively with a upper plate（411）, a lower plate（413）Outer end vertically connect, and the plate in one（412）'s
Middle part offers positive terminal successively（414）, voltage detection terminal（415）, negative terminal（416）With with plus plate current-collecting body（32）
Outer end, detection collector（31）Outer end, negative current collector（33）Outer end connect one to one；
One upper plate（411）Bottom surface and the 4th battery pad（44）Top surface be in contact, the 4th battery pad（44）Bottom
Face, the 3rd battery pad（43）Top surface between be clamped with reverse monomer（22）Top flange（24）, the 3rd battery pad（43）
Bottom surface, the second battery pad（42）Top surface between be clamped with positive monomer（21）Top flange（24）, the second battery pad
（42）Bottom surface and a lower plate（413）Top surface be in contact.
5. a kind of cell assembly according to claim 4, it is characterised in that：The positive monomer（21）Upper top flange
（24）Left and right ends offer positive left hole respectively（211）, positive right hole（212）, reverse monomer（22）Upper top flange（24）A left side
Right two ends offer anti-left hole respectively（221）, anti-right hole（222）, the second battery pad（42）, the 3rd battery pad
（43）, the 4th battery pad（44）First member plate（46）On be disposed with two left pins（421）, three left hole（431）, four left pins
（441）, the second battery pad（42）, the 3rd battery pad（43）, the 4th battery pad（44）Right end plate（47）On according to
It is secondary to be provided with two right pins（422）, three right hole（432）, four right pins（442）；
The two left pin（421）, positive left hole（211）, three left hole（431）, anti-left hole（221）, four left pins（441）From the bottom to top according to
Secondary insertion connection, the two right pin（422）, positive right hole（212）, three right hole（432）, anti-right hole（222）, four right pins（442）By
Under supreme be sequentially inserted into connection.
6. a kind of cell assembly according to claim 4, it is characterised in that：The second battery pad（42）, the 3rd
Battery pad（43）, the 4th battery pad（44）Intermediate plate（45）All it is type structure, intermediate plate（45）On evagination position
Respectively two convex bodys（423）, three convex bodys（433）, four convex bodys（443）, two convex body（423）, three convex bodys（433）Between clamp
There is plus plate current-collecting body（32）Outer end, detection collector（31）Outer end, three convex body（433）It is sandwiched in plus plate current-collecting body（32）
Outer end, detection collector（31）Outer end between, three convex body（433）, four convex bodys（443）Between be clamped with detection afflux
Body（31）Outer end, negative current collector（33）Outer end.
7. a kind of cell assembly according to claim 6, it is characterised in that：The 4th battery pad（44）Centre
Plate（45）It is upper to be located at four convex bodys（443）A spill neck is respectively offered on the position of the left and right sides（444）, a upper plate
（411）Bottom surface on be provided with and spill neck（444）Carry out the convex buckle of correspondence clamping（417）.
8. a kind of battery module, including outer battery case and interior cell assembly on its interior, it is characterised in that：The dispatch from foreign news agency
Pond box is battery case（5）, the interior cell assembly is cell assembly（200）, cell assembly（200）It is arranged at battery case
（5）Inside to constitute battery module（300）；
The battery case（5）Including front shroud（51）, back shroud（52）And hollow middle box body（53）, the middle box body（53）
Rear and front end opening respectively with front shroud（51）, back shroud（52）Carry out closing connection, the front shroud（51）Middle part
Offer positive terminal sub-aperture（511）, test side sub-aperture（512）, negative pole end sub-aperture（513）With with cell assembly（200）On
Positive terminal（414）, voltage detection terminal（415）, negative terminal（416）Carry out one-to-one insertion to coordinate, the battery
Aggregate（200）Tail end and middle box body（53）Interior setting, insulation spacer pad（54）One side be in contact, spacer pad
（54）Another side and back shroud（52）It is in contact, and spacer pad（54）With middle box body（53）Inner chamber for interference fit.
9. a kind of battery module according to claim 8, it is characterised in that：The middle box body（53）Left and right sides on
It is provided with radiating fin（532）；The front shroud（51）, back shroud（52）Manufacture material be stainless steel, aluminium or ambroin,
The spacer pad（54）Manufacture material for ceramics or ambroin.
10. a kind of module group, including at least two monomer modules and connector, adjacent monomer module are connected by connector
Connect, it is characterised in that：The monomer module refers to the battery module described in claim 8（300）, the connector refers to separator
（6）With stock in-and-out bolt（7）, the separator（6）For hollow tubular structure, separator（6）Middle part be provided with evagination
Annular projection（61）, the annular projection（61）With adjacent battery module（300）Between be formed with heat dissipation channel；
The middle box body（53）Corner respectively offer a box body through hole（531）, the spacer pad（54）Left and right ends
Respectively offer a cushion block through hole（541）, the cell assembly（200）Left and right ends respectively offer an aggregate through hole
（8）, the separator（6）Pass box body through hole（531）, aggregate through hole（8）After be fixed, or pass box body through hole
（531）, cushion block through hole（541）After be fixed, and separator（6）Inner chamber and stock in-and-out bolt（7）Outer gusset be connected
Connect；
One aggregate through hole（8）Including two hollow posts（81）, three hollow hole（82）With four hollow posts（83）,
Second battery pad（42）First member plate（46）, right end plate（47）On be each provided with two hollow posts（81）, the 3rd battery pad
Piece（43）First member plate（46）, right end plate（47）On be each provided with three hollow holes（82）, the 4th battery pad（44）A left side
End plate（46）, right end plate（47）On be each provided with four hollow posts（83）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091975.9U CN206602130U (en) | 2017-01-22 | 2017-01-22 | A kind of layer-built battery group, and cell assembly, battery module and module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720091975.9U CN206602130U (en) | 2017-01-22 | 2017-01-22 | A kind of layer-built battery group, and cell assembly, battery module and module group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206602130U true CN206602130U (en) | 2017-10-31 |
Family
ID=60149950
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720091975.9U Withdrawn - After Issue CN206602130U (en) | 2017-01-22 | 2017-01-22 | A kind of layer-built battery group, and cell assembly, battery module and module group |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684266A (en) * | 2017-01-22 | 2017-05-17 | 东风商用车有限公司 | Laminated battery pack, battery assembly, battery module and module group |
| CN108461869A (en) * | 2018-03-20 | 2018-08-28 | 华霆（合肥）动力技术有限公司 | A kind of hose construction and supply unit |
| WO2023087217A1 (en) * | 2021-11-18 | 2023-05-25 | 宁德时代新能源科技股份有限公司 | Battery cell, fabrication method therefor, fabrication device, battery, and electrical apparatus |
-
2017
- 2017-01-22 CN CN201720091975.9U patent/CN206602130U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106684266A (en) * | 2017-01-22 | 2017-05-17 | 东风商用车有限公司 | Laminated battery pack, battery assembly, battery module and module group |
| CN108461869A (en) * | 2018-03-20 | 2018-08-28 | 华霆（合肥）动力技术有限公司 | A kind of hose construction and supply unit |
| CN108461869B (en) * | 2018-03-20 | 2024-02-09 | 华霆（合肥）动力技术有限公司 | Hose structure and power supply device |
| WO2023087217A1 (en) * | 2021-11-18 | 2023-05-25 | 宁德时代新能源科技股份有限公司 | Battery cell, fabrication method therefor, fabrication device, battery, and electrical apparatus |
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