CN108649149A - The connection structure and battery assembly method of battery cover board and lug - Google Patents
The connection structure and battery assembly method of battery cover board and lug Download PDFInfo
- Publication number
- CN108649149A CN108649149A CN201810469161.3A CN201810469161A CN108649149A CN 108649149 A CN108649149 A CN 108649149A CN 201810469161 A CN201810469161 A CN 201810469161A CN 108649149 A CN108649149 A CN 108649149A
- Authority
- CN
- China
- Prior art keywords
- cover board
- battery
- conductive strips
- battery core
- lug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/54—Connection of several leads or tabs of plate-like electrode stacks, e.g. electrode pole straps or bridges
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/147—Lids or covers
- H01M50/148—Lids or covers characterised by their shape
- H01M50/15—Lids or covers characterised by their shape for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2200/00—Safety devices for primary or secondary batteries
- H01M2200/30—Preventing polarity reversal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention relates to the connection structures and battery assembly method of battery cover board and lug.The connection structure of battery cover board and lug includes battery cover board, battery core and the conductive strips for connecting battery core and battery cover board, the conductive strips folding is arranged between battery cover board and battery core, the inside of the battery cover board is equipped with insulated support, there is insulated support the conductive strips holding tank for accommodating the conductive strips folded, the conductive strips holding tank to have the cell wall being isolated between the inner walls and the conductive strips of folding of battery case thickness direction both sides.Battery assembly method includes the following steps：Step 1: battery cover board and battery core are passed through folding conductive band connection；Step 2: battery cover board is fastened to the lug exit of battery core so that conductive strips fold into the conductive strips holding tank being arranged on the insulated support on the inside of battery cover board.Above-mentioned technical proposal can solve the problems, such as existing battery structure, and there are security risk, poor reliability.
Description
Technical field
The present invention relates to the connection structures and battery assembly method of battery cover board and lug.
Background technology
Lithium ion battery is with light-weight, energy storage is big, power is big, pollution-free, long lifespan, self discharge coefficient is small, temperature is suitable
The advantages that answering range wide, therefore gradually have been favored by people, also gradually replace others in energy storage and power battery field
Conventional batteries.
A kind of existing lithium ion battery is one as disclosed in the Chinese patent that Authorization Notice No. is 205828564 U of CN
Kind of low-cost aluminum structure lithium ion battery, is a kind of two lithium ion batteries for bringing out lug, including battery case, battery case
Both ends are respectively equipped with opening, and two openings are separately connected a battery cover board, respectively positive cover board and cathode cover board, positive and negative
Contact terminal, such as pole are respectively equipped on polar cap plate；Positive cover board and cathode cover board are fixed by welding to battery case
The opening at body both ends surrounds the battery core accommodating chamber for accommodating battery core with battery case, and battery core is arranged in battery core accommodating chamber.
When assembling, positive cover board and cathode cover board are connect by connector with the positive pole ear of battery core respective side and negative lug respectively,
Realize the conduction of electric energy.
In practical manufacturing process, connector is longer in lug sometimes using being flexible coupling, when assembling cover board
Lug can also directly be connect with battery cover board be flexible coupling without the use of being flexible coupling or the prolongation of lug constitute for connecting
The conductive strips of logical contact terminal and battery core.Conductive strips can occur curved during battery cover board lid is closed to battery case
Folding, after on positive cover board or the capping to battery case of cathode cover board, conductive strips are possible to contact with battery case, due to electricity
Pond shell is metal, therefore the situation can lead to internal short-circuit of battery.In addition, battery is in use, battery core can be due to shaking
It moves or is impacted and moved in battery case, it is equally possible to cause conductive strips to contact conducting with battery case, lead to battery
Internal short-circuit.
It can be seen that for the connection structure of battery cover board and lug there are security risk, stability is poor in the prior art.It is existing
Have in technology in order to avoid due to be flexible coupling or lug contact with battery case caused by battery short circuit, often increase battery core with
Spacing between end cap realizes the processing to conductive strips, but the space availability ratio inside battery core can be caused to reduce again in this way,
Market be cannot be satisfied to battery energy density increasingly higher demands.If pasted to avoid short circuit and in inner walls exhausted
Edge layer can then reduce efficiency of assembling, also be not easy to Automated assembly.
Invention content
The object of the present invention is to provide the connection structure and a kind of battery assembly method of a kind of battery cover board and lug,
Capable of solving the problems, such as existing battery structure, there are security risk, poor reliability.
The technical solution that the connection structure of battery cover board and lug uses in the present invention is as follows.
The connection structure of battery cover board and lug, including battery cover board, battery core and for connecting battery core and battery cover board
Conductive strips, the conductive strips folding are arranged between battery cover board and battery core, and the inside of the battery cover board is equipped with insulating supporting
There is the conductive strips holding tank for accommodating the conductive strips folded, the conductive strips holding tank to have isolation for part, insulated support
Cell wall between the inner walls and the conductive strips of folding of battery case thickness direction both sides.
Advantageous effect：The present invention uses above-mentioned technical proposal, by the way that conductive strips folding is arranged in battery cover board and battery core
Between conductive strips holding tank in, can be by the cell wall of conductive strips holding tank by conductive strips and battery case thickness direction both sides
Inner walls isolation, to avoid conductive strips from being contacted with battery case, raising reliability, meanwhile, conductive strips before being folded can
Enough make that there is larger spacing between battery cover board and battery core, consequently facilitating the connection of conductive strips and battery cover board and/or battery core,
Convenient for assembly.Simultaneously as conductive strips can avoid conductive strips from being contacted with battery case after being arranged in conductive strips holding tank,
Therefore larger spacing between battery core and end cap need not be set, be conducive to reduce size and volume, it is close to improve the energy content of battery
Degree.
As a kind of perferred technical scheme, the insulated support is fixed on battery cover board.
Amount of parts can be reduced using the program, reduce process, keep battery assembly simpler.
As a kind of perferred technical scheme, the insulated support have for the battery core end face along perpendicular to
The stop section of the direction block cooperation of battery cover board.
Stop section is arranged on insulated support to play positioning action to battery core, and battery core is avoided to be altered in battery case
It is dynamic, so as to further increase reliability and safety.
On the basis of stop section is arranged, as a kind of perferred technical scheme, the stop section includes the conductive strips
The notch opening's edge of holding tank.
The notch opening's edge of conductive strips holding tank can play buffer action to conductive strips to a greater extent as stop section, into
One step improves isolation effect.
On the basis of stop section is arranged, as a kind of perferred technical scheme, the both ends of the insulated support are equipped with
Insulating supporting platform, conductive strips holding tank are located between the insulating supporting platform at both ends, the insulating supporting platform have for it is described
Along the stopping surface of the direction block cooperation perpendicular to battery cover board, the stop section includes the insulating supporting for the end face of battery core
Platform.
Setting insulating supporting platform can play buffer action to battery case width direction both sides, simultaneously support platform have compared with
Big block area, can ensure the reliable location of battery core.
As a kind of perferred technical scheme, the conductive strips have the cover board linkage section that is connect with battery cover board and with electricity
The battery core linkage section of core connection, is equipped with intermediate linkage section, cover board linkage section, centre connect between cover board linkage section and battery core linkage section
Connect section and battery core linkage section fold to be formed it is Z-shaped.
The scheme bending of Z-fold is convenient, easy to operation, is conducive to improve efficiency of assembling.
As a kind of perferred technical scheme, the conductive strips are fixedly connected on the lug drawn in battery core, the pole
The part bending that ear is connected with conductive strips is arranged with parallel with battery cover board.
Battery size can be further decreased using the technical solution, improve battery energy density.
As a kind of perferred technical scheme, the bending part of the conductive strips is preset with folding line.
Setting folding line can facilitate bending, and be conducive to control bending size and shape, improve consistency and reliability.
On the basis of insulating supporting platform is arranged, the battery cover board includes positive cover board and cathode cover board, the anode
Cover board and cathode cover board are separately positioned on the opposite both sides of battery, and the battery core is plugged in the battery case of battery, the electricity
The width direction both sides of core are equipped with the side plate extended perpendicular to battery cover board, one end of the side plate and positive cover board or negative cover
Insulating supporting platform overlap joint, the other end on plate is concordant with the corresponding end of battery core.
Setting side plate can position positive cover board or cathode cover board, and convenient for being packed into battery case, to have
Conducive to raising efficiency of assembling, ensure assembling quality.
On the basis of side plate is set, it is equipped with the side of the side plate overlapped insulating supporting platform fixed for side plate
Buckle.
It is simple that buckle structure is set, easy to operate, good positioning effect.
On the basis of side plate is set, adhesive tape is bonded between the side plate and battery core.
Adhesive tape can further increase the reliability of positioning of battery cover board and side plate, and technical maturity is easy to operate.
On the basis of cover board linkage section, intermediate linkage section are set, as a kind of perferred technical scheme, the battery cover
Plate includes positive cover board, and conductive strips include the positive conductive band being connect with positive cover board, the cover board linkage section of positive conductive band and
High temperature resistant spacer is equipped between intermediate linkage section.
The effect of high temperature resistant spacer, which is arranged, is, when positive conductive band fuses, prevent fusing after cover board linkage section with
Intermediate linkage section is sticked together, to ensure the disconnection of circuit, timely disengagement failure.
The above preferred technical solution can be used individually, can also more than two combination uses.
The technical solution that battery assembly method uses in the present invention is as follows.
Battery assembly method, this approach includes the following steps：Step 1: battery cover board is led with battery core by folding
Electric band connection；Step 2: battery cover board is fastened to the lug exit of battery core so that conductive strips fold on the inside of battery cover board
Insulated support in the conductive strips holding tank that is arranged.
Advantageous effect：The present invention uses above-mentioned technical proposal, conductive strips can make before being folded battery cover board and battery core it
Between there is larger spacing, consequently facilitating the connection of conductive strips and battery cover board and/or battery core, convenient for assembly, and pass through by
Conductive strips folding is arranged in the conductive strips holding tank between battery cover board and battery core, can pass through the cell wall of conductive strips holding tank
Conductive strips are isolated with the inner walls of battery case thickness direction both sides, to avoid conductive strips from being contacted with battery case, are carried
Larger spacing need not be arranged in high reliability between battery core and end cap, be conducive to reduce size and volume, improve battery energy
Metric density.
As a kind of perferred technical scheme, the insulated support is using the insulation branch being fixed on battery cover board
Support member.
As a kind of perferred technical scheme, the battery core is located in by the cooperation of the block of its end face and insulated support
In battery case.
In the technology for positioning battery core by insulated support, as a kind of perferred technical scheme, the conductive strips
The notch opening's edge of holding tank and the end face block of battery core coordinate.
In the technology for positioning battery core by insulated support, as a kind of perferred technical scheme, the insulation branch
The both ends of support member are equipped with insulating supporting platform, and conductive strips holding tank is located between the insulating supporting platform at both ends, the insulating supporting platform
Coordinate with the end face block of battery core.
As a kind of perferred technical scheme, the conductive strips have the cover board linkage section that is connect with battery cover board and with electricity
The battery core linkage section of core connection, is equipped with intermediate linkage section, cover board linkage section, centre connect between cover board linkage section and battery core linkage section
Section and battery core linkage section are connect according to Z-fold.
As a kind of perferred technical scheme, in step 2 further include the part folding that the lug of battery is connected with conductive strips
Curve the step parallel with battery cover board.
As a kind of perferred technical scheme, the battery cover board includes positive cover board and cathode cover board, the positive cover
Plate and cathode cover board are separately positioned on the opposite both sides of battery, and any one of positive cover board and cathode cover board pass through the step
After one processing, electricity is inserted into one end corresponding to another of positive cover board and cathode cover board from battery case jointly with battery core
In the shell of pond, the processing of the step 1 is then carried out to another of positive cover board and cathode cover board.
As a kind of perferred technical scheme, battery assembly method further includes the step in the default folding line of bending part of conductive strips
Suddenly.
The above preferred technical solution can be used individually, can also more than two combination uses.
Description of the drawings
Fig. 1 is the structural schematic diagram of the battery core of one embodiment of the connection structure of battery cover board and lug；
Fig. 2 is the attachment structure schematic diagram of battery core and positive cover board；
Fig. 3 is that positive cover board fastens to structural schematic diagram later in battery core；
Fig. 4 is that positive cover board fastens to sectional view later in battery core（Cutting plane is perpendicular to the thickness side of battery cover board and shell
To side）；
Fig. 5 is side plate and battery core, the assembled state schematic diagram of positive cover board；
Fig. 6 is the structural schematic diagram that negative lug is connected in battery core；
Fig. 7 is that the battery core in Fig. 6 is packed into the structural schematic diagram after battery case；
Fig. 8 is the attachment structure schematic diagram of battery core and cathode cover board；
Fig. 9 is the structural schematic diagram after battery is completed；
Figure 10 is the sectional view of Fig. 9（Cutting plane is perpendicular to the thickness direction side of battery cover board and shell）.
Component part in figure corresponding to each reference numeral it is entitled：1- battery cases, 2- battery cores, 3- positive pole ears,
4- negative lugs, 5- anode cover boards, 6- cathode cover boards, 7- anodes are flexible coupling, and 8- cathode are flexible coupling, 9- negative terminal plates, 10- insulation
Support element, 11- insulating supporting platforms, 12- frames, 13- conductive strips holding tanks, 14- folding lines, 15- buckles, 16- side plates, 17- adhesive tapes,
18- wheat membranes, 19- positive pole ears weldering print, 20- negative lugs weldering print, 21- high temperature resistant spacers.
Specific implementation mode
The invention will be further described below in conjunction with the accompanying drawings.
One embodiment of the connection structure of battery cover board and lug is as shown in Figures 1 to 10 in the present invention, is one kind two
Head goes out the connection structure used on the lithium ion battery of lug, and lithium ion battery includes rectangular battery case 1, battery case 1
It is inside filled with battery core 2, the length direction both ends of battery core 2 lead to lug, and the length direction both ends of battery case 1 are equipped with opening,
Opening is provided with battery cover board, and battery cover board includes positive cover board 5 and cathode cover board 6, corresponds respectively to positive pole ear 3 and bears
Pole lug 4.It is equipped with contact terminal, respectively Positive contact terminal and cathode contact on positive cover board 5 and cathode cover board 6
Terminal, Positive contact terminal and negative contact terminal respectively with the lug of corresponding side by anode be flexible coupling 7 and cathode be flexible coupling 8
Conducting, anode be flexible coupling 7 and cathode be flexible coupling and 8 be respectively formed positive conductive band and negative conductive band.Anode is flexible coupling 7 and cathode
It is flexible coupling and 8 is all made of folding structure, battery is folded when assembling with waveform.
As shown in Fig. 1 to 5, battery cover board includes cover plate main body and the insulated support 10 that is arranged on the inside of cover plate main body,
Battery cover board includes positive cover board 5 and cathode cover board 6.The length direction both ends of insulated support 10 are respectively equipped with insulating supporting platform
11, two frames 12 are connected between two insulating supporting platforms 11 so that the generally rectangular parallelepiped structure of insulated support 10, frame 12
The conductive strips holding tank 13 for accommodating the conductive strips folded is surrounded with insulating supporting platform 11.Conductive strips holding tank 13 has isolation
Cell wall between 1 inner wall of battery case and the conductive strips of folding of 1 thickness direction both sides of battery case connects in the present embodiment
The frame 12 being connected between two insulating supporting platforms 11.Insulating supporting platform 11 has for the end face with battery core 2 along perpendicular to battery
The stopping surface of the direction block cooperation of cover board, frame 12 have for the end face with battery core 2 along perpendicular to the direction of battery cover board
The top surface of the top margin of block cooperation, the stopping surface of insulating supporting platform 11 and frame 12 formed for the end face of battery core 2 along vertical
In the stop section of the direction block cooperation of battery cover board, for being positioned in shell to battery core 2, and can be thoroughly by battery
The inner wall of shell is isolated with being flexible coupling, and security performance and reliability are improved.
When cover board is assembled on shell, conductive strips and lug are bent over, the part bending that lug is connected with conductive strips to
Battery cover board is parallel, and certainly, it refers to that extending direction is roughly the same that this is parallel, does not need to be accurately parallel.After folding
Conductive strips have the cover board linkage section being connect with battery cover board and the battery core linkage section being connect with battery core 2, cover board linkage section and electricity
Be equipped with intermediate linkage section between core linkage section, cover board linkage section, intermediate linkage section and battery core linkage section fold to be formed it is Z-shaped.In order to
Convenient for bending and ensure that bending length, the bending part of conductive strips are preset with folding line 14.In addition, on positive cover board 5, conductive strips hold
Receive slot 13 groove bottom wall side and groove sidewall between have interval, positive conductive band is drawn out of this interval, and anode is led
High temperature resistant spacer 21 is equipped between the cover board linkage section of electric band and intermediate linkage section, high temperature resistant spacer 21, which is embedded in conductive strips, to be held
Receive the groove bottom wall of slot 13.When positive conductive band fuses, high temperature resistant spacer 21 be used for prevent fusing after cover board linkage section with
Intermediate linkage section is sticked together.In other embodiments, high temperature resistant spacer 21 can also use other modes to be arranged, such as
On slot bottom inner wall fixed to conductive strips holding tank 13.
The width direction both sides of battery core 2 are equipped with the side plate 16 extended perpendicular to battery cover board, one end and the anode of side plate 16
The overlap joint of insulating supporting platform 11, the other end on cover board 5 or cathode cover board 6 is concordant with the corresponding end of battery core 2.In order to make side plate 16 with
Battery core 2 is well fixed and offers convenience to assembly, is equipped with for side plate 16 with the side of overlapped the insulating supporting platform 11 of side plate 16
Fixed buckle 15, is bonded with adhesive tape 17 between side plate 16 and battery core 2.
In the present embodiment, in order to further enhance security performance, the lateral surface of battery core 2 is pasted with wheat membrane by adhesive tape 17
18, adhesive tape 17 is arranged in the lug exit of battery core 2 with U-shaped, so as to consolidate simultaneously to the wheat membrane 18 of 2 both sides of battery core
It is fixed.In order to preferably assemble, the adhesive tape 17 on side plate 16 is also arranged with U-shaped in 2 width direction both sides of battery core, and positioned at anode
18 fixation adhesive tape 17 of wheat membrane at end closes the insulated support 10 and battery core 2 that direction is connected across side of the positive electrode along the lid of positive cover board 5
Between, it can play the role of pre-fixing to positive cover board 5.
The assembling process of above-mentioned lithium ion battery is as follows, which is also an implementation of battery assembly method in the present invention
Example.
1. to the lateral surface cladding wheat membrane 18 of battery core 2, and the adhesive tape 17 of wheat membrane 18 is fixed in battery core 2, adhesive tape
17 are arranged in the lug exit of battery core 2 with U-shaped, and positive pole ear 3 and negative lug 4 are drawn from 18 both ends of wheat membrane respectively；
2. anode is flexible coupling and 7 is soldered in advance on positive cover plate 5 in advance, and anode is flexible coupling and 7 has done folding line 14 in advance, is convenient for positive dead-soft
7 bending of connection；
It 7 is welded on positive pole ear 3 3. anode is flexible coupling, 19 welding of print can be welded according to positive pole ear；Positive dead-soft connects at this time
Connect 7 also unfolded, positive cover board 5 and battery core 2 are flexible coupling convenient for anode and 7 are welded with positive pole ear 3 apart from larger；
4. positive cover board 5 is overturn towards the end face of battery core 2, one end that positive pole ear 3 is equipped with to battery core 2 fastens, anode insulation branch
Support member 10 supports on the wheat membrane 18 at 3 end of positive pole ear of battery core 2；Meanwhile positive 10 liang of insulated support on positive cover board 5
The notch opening's edge of 2 holding tank of insulating supporting platform 11 and battery core at end（That is the top surface of frame 12）Battery core 2 is held out against, fixed battery core is played
2 effect, anode be flexible coupling 7 and the whole Z-shaped Tsang that is bent into of positive pole ear 3 in intermediate conductive strips holding tank 13, lead
Electricity plays protection and fixed function with holding tank 13 to the deriving structure of anode；
5. side plate 16 is formed by buckle by the boss that the adaptation buckle 15 of end is stuck in 10 both sides of positive insulated support
On 15, then use adhesive tape 17 that side plate 16 is fixed on positive cover board 5 and wheat membrane 18；Wheat membrane 18 positioned at positive terminal is solid
Determine adhesive tape 17 to be connected across between the positive insulated support 10 of side of the positive electrode and battery core 2 along the lid conjunction direction of positive cover board 5；
6., can be according to cathode pole as shown in fig. 6, cathode is flexible coupling 8 by being ultrasonically bonded in 2 negative lug 4 of battery core
20 welding of ear weldering print；Cathode is flexible coupling 8 has done folding line 14 in advance, convenient for the bending that is flexible coupling；
7. positive cover board 5 will be connected with and be flexible coupling 8 battery core 2 of cathode is sent into battery case from the cathode end opening of battery case 1
Body 1, positive cover board 5 are adjacent to the positive end opening of battery case 1, and cathode is flexible coupling 8 draws from other end；
8. cathode is flexible coupling 8 by being laser-welded on the negative terminal plate 9 of 6 inside of cathode cover board；
9. cathode cover board 6 is overturn towards the end face of battery core 2, one end that negative lug 4 is equipped with to battery core 2 fastens, negative insulation branch
Support member 10 supports on the wheat membrane 18 at 4 end of negative lug of battery core 2；Meanwhile 10 liang of negative insulation support element on cathode cover board 6
The notch opening's edge of 2 holding tank of insulating supporting platform 11 and battery core at end（That is the top surface of frame 12）Battery core 2 is held out against, fixed battery core is played
2 effect, cathode be flexible coupling 8 and the whole Z-shaped Tsang that is bent into of negative lug 4 in intermediate conductive strips holding tank 13, lead
Electricity plays protection and fixed function with holding tank 13 to the deriving structure of cathode；
10. by positive cover board 5 and cathode cover board 6 by being laser-welded at the both ends open of battery case 1；
Battery core 2 is held out against by the insulated support 10 inside positive cover board 5 and cathode cover board 6, anode is drawn and cathode extraction is in
" Z " type is respectively placed in the conductive strips holding tank 13 inside positive cover board 5 and cathode cover board 6 after folding, to the extraction knot of positive and negative electrode
Structure plays insulation and protective action, simple in structure, and insulation safety is excellent, and inside battery space availability ratio is very high, easy to assembly,
Convenient for automated job.
In the above-described embodiments, insulated support 10 is fixed on battery cover board, in other embodiments of the invention, absolutely
Edge support element 10 seperated with battery cover board main body can also be arranged, conductive tape punching should be arranged on insulated support 10 at this time,
So that conductive strips is passed through the conductive tape punching on insulated support 10 when assembly first, is then attached on contact terminal.
In the above-described embodiments, the groove sidewall that conductive strips holding tank 13 is is enclosed construction, in other embodiments, conductive
Band holding tank 13 can also be straight slot, such as the holding tank that only above-mentioned frame 12 is formed.In addition, conductive strips holding tank 13
Groove sidewall can also be intermittent configuration.
In the above-described embodiments, insulated support 10, which has, keeps off with the end face of battery core 2 along perpendicular to the direction of battery cover board
The stop section only coordinated, and stop section includes the insulation at 10 both ends of notch opening's edge and insulated support of conductive strips holding tank 13
Supporting table 11；In other embodiments of the invention, since conductive strips holding tank 13 has been able to play isolation battery case 1
Effect, therefore insulated support 10 can not also form block relationship with battery core 2；In addition, after battery is completed, insulating supporting
The stop section of part 10 can exist with battery core 2 to be spaced, and is formed block with battery core 2 when play occurs in battery core 2, is played barrier effect.
Furthermore 11 conduct of insulating supporting platform at 10 both ends of notch opening's edge or insulated support of conductive strips holding tank 13 can also be only relied on
Stop section can also be arranged other stop sections, such as support column is arranged on the inside of cover board body.
In the above-described embodiments, conductive strips fold to be formed it is Z-shaped, in other embodiments, the folding number of plies and shape of conductive strips
Shape can also be changed, for example, can also forming V-shape fold, folded for another example at U-shaped, for another example at W-fold.It can not also on conductive strips
Folding line 14 is set, ensures collapsed shape by jig when assembling.
In addition, in other embodiments, battery can first connect cathode cover board 6 when assembling, positive cover board 5 is reconnected, also
First battery core 2 can be packed into shell, then assemble positive cover board 5 and cathode cover board 6, and battery core can be previously connected to by being flexible coupling
On 2, or it is previously connected on battery cover board.
Furthermore in the above-described embodiments, lug is drawn from the two-phase back side of battery core 2, and in other embodiments, lug also may be used
To be drawn from the same side of battery core 2, at this point, positive cover board 5 and cathode cover board 6 can be separate structures, can also be integrated knot
Structure, the conductive strips that folding may be used realize assembly, and ensure safety by conductive strips holding tank 13.
Finally, it should be noted that these are only the preferred embodiment of the present invention, it is not intended to restrict the invention, to the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, for those skilled in the art, still can be with
To the modification that the technical solution recorded in foregoing embodiments carries out being not required to make the creative labor, or to which part technology
Feature carries out equivalent replacement.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on,
It should be included within protection scope of the present invention.
Claims (10)
1. the connection structure of battery cover board and lug, including battery cover board, battery core and for connecting leading for battery core and battery cover board
Electric band, it is characterised in that：The conductive strips folding is arranged between battery cover board and battery core, and the inside of the battery cover board is equipped with
Insulated support, insulated support have the conductive strips holding tank for accommodating the conductive strips folded, the conductive strips holding tank
With the cell wall being isolated between the inner walls and the conductive strips of folding of battery case thickness direction both sides.
2. the connection structure of battery cover board according to claim 1 and lug, it is characterised in that：The insulated support is solid
It is scheduled on battery cover board.
3. the connection structure of battery cover board according to claim 1 or 2 and lug, it is characterised in that：The insulating supporting
Part has for the end face with the battery core along the stop section of the direction block cooperation perpendicular to battery cover board.
4. the connection structure of battery cover board according to claim 3 and lug, it is characterised in that：The stop section includes institute
State the notch opening's edge of conductive strips holding tank.
5. the connection structure of battery cover board according to claim 3 and lug, it is characterised in that：The insulated support
Both ends are equipped with insulating supporting platform, and conductive strips holding tank is located between the insulating supporting platform at both ends, and the insulating supporting platform, which has, to be used
In the end face with the battery core along the stopping surface of the direction block cooperation perpendicular to battery cover board, the stop section includes described exhausted
Edge supporting table.
6. the connection structure of battery cover board according to claim 1 or 2 and lug, it is characterised in that：The conduction belt
The battery core linkage section for having the cover board linkage section being connect with battery cover board and being connect with battery core, cover board linkage section and battery core linkage section it
Between be equipped with intermediate linkage section, cover board linkage section, intermediate linkage section and battery core linkage section fold to be formed it is Z-shaped.
7. the connection structure of battery cover board according to claim 1 or 2 and lug, it is characterised in that：The conductive strips are solid
Surely it is connected on the lug drawn in battery core, the part bending arrangement that the lug is connected with conductive strips is with flat with battery cover board
Row.
8. the connection structure of battery cover board according to claim 1 or 2 and lug, it is characterised in that：The conductive strips
Bending part is preset with folding line.
9. the connection structure of battery cover board according to claim 5 and lug, it is characterised in that：The battery cover board includes
Positive cover board and cathode cover board, the anode cover board and cathode cover board are separately positioned on the opposite both sides of battery, and the battery core is inserted
It is located in the battery case of battery, the width direction both sides of the battery core are equipped with the side plate extended perpendicular to battery cover board, described
One end of side plate and insulating supporting platform overlap joint, the other end on positive cover board or cathode cover board are concordant with the corresponding end of battery core.
10. battery assembly method, it is characterised in that this approach includes the following steps：Step 1: battery cover board and battery core are passed through
Folding conduction band connection；Step 2: battery cover board is fastened to the lug exit of battery core so that conductive strips fold into electricity
In the conductive strips holding tank being arranged on insulated support on the inside of the cover board of pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469161.3A CN108649149A (en) | 2018-05-16 | 2018-05-16 | The connection structure and battery assembly method of battery cover board and lug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810469161.3A CN108649149A (en) | 2018-05-16 | 2018-05-16 | The connection structure and battery assembly method of battery cover board and lug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108649149A true CN108649149A (en) | 2018-10-12 |
Family
ID=63756381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810469161.3A Pending CN108649149A (en) | 2018-05-16 | 2018-05-16 | The connection structure and battery assembly method of battery cover board and lug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108649149A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234244A (en) * | 2020-04-30 | 2021-01-15 | 蜂巢能源科技有限公司 | Lithium ion battery |
| CN114421064A (en) * | 2021-12-31 | 2022-04-29 | 天津市捷威动力工业有限公司 | Battery and battery assembling method |
| CN114614171A (en) * | 2022-04-12 | 2022-06-10 | 浙江极氪智能科技有限公司 | Battery assembly and method for connecting tab and cover plate |
| CN115084790A (en) * | 2022-07-14 | 2022-09-20 | 马鞍山盛世科技有限公司 | Manufacturing method of high-energy-density battery |
| WO2023123001A1 (en) * | 2021-12-28 | 2023-07-06 | 宁德时代新能源科技股份有限公司 | Battery, electric device, and battery assembling method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003242957A (en) * | 2002-02-20 | 2003-08-29 | Matsushita Electric Ind Co Ltd | Rectangular cell, and manufacturing method of the same |
| CN1591959A (en) * | 2003-09-01 | 2005-03-09 | 比亚迪股份有限公司 | Laminated lithium ion secondary cell |
| JP2009146601A (en) * | 2007-12-11 | 2009-07-02 | Nec Tokin Corp | Rectangular-shaped sealed battery |
| CN206180012U (en) * | 2016-11-21 | 2017-05-17 | 惠州市元大电子科技有限公司 | Lithium ion battery structure |
| CN208521975U (en) * | 2018-05-16 | 2019-02-19 | 多氟多（焦作）新能源科技有限公司 | The connection structure of battery cover board and tab |
-
2018
- 2018-05-16 CN CN201810469161.3A patent/CN108649149A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003242957A (en) * | 2002-02-20 | 2003-08-29 | Matsushita Electric Ind Co Ltd | Rectangular cell, and manufacturing method of the same |
| CN1591959A (en) * | 2003-09-01 | 2005-03-09 | 比亚迪股份有限公司 | Laminated lithium ion secondary cell |
| JP2009146601A (en) * | 2007-12-11 | 2009-07-02 | Nec Tokin Corp | Rectangular-shaped sealed battery |
| CN206180012U (en) * | 2016-11-21 | 2017-05-17 | 惠州市元大电子科技有限公司 | Lithium ion battery structure |
| CN208521975U (en) * | 2018-05-16 | 2019-02-19 | 多氟多（焦作）新能源科技有限公司 | The connection structure of battery cover board and tab |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112234244A (en) * | 2020-04-30 | 2021-01-15 | 蜂巢能源科技有限公司 | Lithium ion battery |
| CN112234244B (en) * | 2020-04-30 | 2022-05-20 | 蜂巢能源科技有限公司 | Lithium ion battery |
| WO2023123001A1 (en) * | 2021-12-28 | 2023-07-06 | 宁德时代新能源科技股份有限公司 | Battery, electric device, and battery assembling method |
| CN114421064A (en) * | 2021-12-31 | 2022-04-29 | 天津市捷威动力工业有限公司 | Battery and battery assembling method |
| CN114614171A (en) * | 2022-04-12 | 2022-06-10 | 浙江极氪智能科技有限公司 | Battery assembly and method for connecting tab and cover plate |
| CN115084790A (en) * | 2022-07-14 | 2022-09-20 | 马鞍山盛世科技有限公司 | Manufacturing method of high-energy-density battery |
| CN115084790B (en) * | 2022-07-14 | 2024-04-09 | 马鞍山盛世科技有限公司 | Manufacturing method of high-energy-density battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208521975U (en) | The connection structure of battery cover board and tab | |
| CN108649149A (en) | The connection structure and battery assembly method of battery cover board and lug | |
| KR101311252B1 (en) | Secondary Battery Pack | |
| WO2019114780A1 (en) | Battery and battery pack having same, and electric vehicle | |
| CN206250261U (en) | Secondary cell | |
| US20200373547A1 (en) | Battery unit and manufacturing method thereof, and battery module | |
| CN111370601A (en) | Lithium ion battery | |
| EP2731175A2 (en) | Secondary battery pack | |
| CN112599934B (en) | Method for assembling winding core of lithium battery | |
| CN217641706U (en) | Lower plastic structure, top cap subassembly and power battery | |
| CN108428847A (en) | Secondary battery | |
| CN111477796B (en) | Button cell and preparation method thereof | |
| CN115377620A (en) | Electrode switching piece and battery tab switching structure | |
| CN112701386B (en) | Winding core assembling structure and assembling method | |
| JP3686242B2 (en) | Battery stack electrode connection method and battery | |
| CN208622878U (en) | Secondary cell and battery modules | |
| CN208637463U (en) | A kind of rectangular winding multi-pole lug lithium ion battery | |
| CN201146203Y (en) | Battery cover plate and battery | |
| CN206742419U (en) | Secondary cell | |
| CN220121963U (en) | Battery pack and single battery thereof | |
| CN112234244A (en) | Lithium ion battery | |
| CN219226566U (en) | Battery cell | |
| CN219979604U (en) | Battery cell electrode group and battery cell | |
| CN219476769U (en) | Electrode assembly and winding lithium ion battery | |
| CN217214835U (en) | Large-size laminated battery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 454191 Industrial Cluster Area, Jiaozuo City, Henan Province, Standardized Workshop Area on the North Side of Xinyuan Road, West Park Applicant after: Multi-fluorine New Energy Technology Co., Ltd. Address before: 454191 Henan Jiaozuo industrial agglomeration area, West Park, Xinyuan Road, north side of the standardization workshop. Applicant before: Duofuduo (Jiaozuo) Amperex Technology Limited |
|
| CB02 | Change of applicant information |