CN104009198B - Lug jockey and there is the battery pack of lug jockey - Google Patents
Lug jockey and there is the battery pack of lug jockey Download PDFInfo
- Publication number
- CN104009198B CN104009198B CN201410113124.0A CN201410113124A CN104009198B CN 104009198 B CN104009198 B CN 104009198B CN 201410113124 A CN201410113124 A CN 201410113124A CN 104009198 B CN104009198 B CN 104009198B
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- Prior art keywords
- lug
- base
- lid
- joint pin
- fillet
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Classifications
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- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
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- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
- H01M50/51—Connection only in series
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- 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
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
- H01M50/512—Connection only in parallel
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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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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention relates to a kind of battery pack, comprise the battery cell of multiple mutual superposition, this battery pack comprises lug jockey further, this lug jockey comprises base, lid, conduction joint pin and lug pad, this lug pad is arranged between this base and this lid, and this lug pad has fillet, the lug of at least two battery cells is along the level and smooth bending of the fillet of this lug pad, and it is overlapped to realize electrical contact between this lug pad and this lid, the part of the overlap of the lug of these at least two battery cells has the first through hole be interconnected, this conduction joint pin is through this first through hole.The invention still further relates to a kind of lug jockey.
Description
Technical field
The present invention relates to a kind of battery pack and jockey, particularly relate to a kind of battery pack and the lug jockey with lug jockey.
Background technology
In power-type lithium ion battery group, need multiple battery cell to connect, in prior art, adopt soldering or ultrasonic bonding to be welded to each other together by the positive and negative lug of adjacent battery cell.Soldering method is easy, only needs to use that simple instrument (as electric iron) can complete welding, solder joint trimming, components and parts change, the technical process such as welding again.In addition, soldering also have cost low, easily realize the advantages such as automation.In current lithium battery packaging technology, the connection of lug mainly adopts soldering mode.But there are the following problems in the application for this mode:
1, when welding, can produce high temperature on lug surface, battery cell inside also can temperature raise thereupon.Hot conditions can make the stability of the solid electrolyte film (SEI film) of battery cell inside decline and electrode cycle degradation, thus affects capacity and the cycle performance thereof of battery.And battery cell inside produces high heat, partial electrolyte liquid can be caused to vaporize and even decompose, in battery cell, pressure increase makes the swollen bag distortion of battery, and serious may cause burning, blast;
2, when welding, because high temperature makes metal surface produce oxide-film, affecting the solderability of material, and contact resistance and the conductivity thereof of lug can be had influence on;
3, the positive pole ear of lithium ion battery is generally aluminium strip, negative lug is generally nickel strap, and for aluminum matrix material, soldering needs special special solder flux, in order to avoid this kind of situation, adopt at present mostly laser spot welder or supersonic welder welding of aluminum nickel composite band again on aluminium strip matrix so that with the welding of the nickel strap of negative pole, add the complexity of operation;
4, solder flux can volatilize pernicious gas when heating, and works the mischief to operator;
5, because lug surface can exist some oxides and dirt unavoidably, be easy to cause rosin joint.The contact resistance rising of faulty soldered joint can cause local pyrexia, and local temperature raises impels again the solder joint situation of not exclusively contact to worsen further, finally even makes solder joint come off, causes battery pack not work.Numeral shows according to statistics, in the fault of electronic system product, has half nearly to cause due to failure welding.
Ultrasonic wave metal welding is the metal surface utilizing dither wave loops to weld to two need, when pressurizeing, make two metal surface phase mutual friction and the fusion that formed between molecular layer, its advantage be quick, energy-conservation, fusion intensity is high, good conductivity, no-spark, close to cool grinding; Shortcoming be institute's weld metal pieces can not too thick (be generally less than or equal 5mm), solder joint can not too large, need pressurization, and positive and negative lug connects complicated, can only be Al-Al face, the welding of Ni-Ni face, welding between different metals needs Reparametrization and makes operating process miscellaneous, inefficiency.The most important thing is that ultrasonic bonding can not be applied to the connection between lug and protective circuit module, still need the method adopting soldering, thus cannot avoid the adverse effect that soldering causes for battery cell.
Therefore, above two kinds of welding manners are not all the optimal modes that power-type lithium ion battery group lug connects.
Summary of the invention
In view of this, the necessary battery pack a kind of lug jockey being provided and there is lug jockey, the shortcoming that this lug jockey both can avoid soldering and ultrasonic bonding to exist, can also realize simultaneously between lug tight, firmly connect.
A kind of battery pack, comprise the battery cell of multiple mutual superposition, this battery pack comprises lug jockey further, this lug jockey comprises base, lid, conduction joint pin and lug pad, this lug pad is arranged between this base and this lid, and this lug pad has fillet, the lug of at least two battery cells is along the level and smooth bending of the fillet of this lug pad, and it is overlapped to realize electrical contact between this lug pad and this lid, the part of the overlap of the lug of these at least two battery cells has the first through hole be interconnected, this conduction joint pin is through this first through hole.
A kind of battery pack, comprise the battery cell of multiple mutual superposition, this battery pack comprises lug jockey further, this lug jockey comprises base, lid and conduction joint pin, this base has fillet, the lug of at least two battery cells is along the level and smooth bending of the fillet of this base, and it is overlapped to realize electrical contact between this lug pad and this lid, the part of the overlap of the lug of these at least two battery cells has the first through hole be interconnected, and this conduction joint pin is through this first through hole.
A kind of lug jockey, comprise base, lid, conduction joint pin and lug pad, this lug pad is arranged between this base and this lid, this lug pad has fillet, for making lug along the level and smooth bending of this fillet, this conduction joint pin is used for the first through hole through the part of the overlap of two lugs.
A kind of lug jockey, comprise base, lid and conduction joint pin, this base has fillet, and for making lug along the level and smooth bending of this fillet, this conduction joint pin is used for the first through hole through the part of the overlap of two lugs.
Battery pack provided by the invention and lug jockey can closely, firmly, simply link together lug, the impact that high temperature when avoiding lug soldering causes for battery inside, and complicated operating process can not be had again as ultrasonic bonding.
Accompanying drawing explanation
Fig. 1 is the stereogram of embodiment of the present invention battery pack.
Fig. 2 is the stereogram of embodiment of the present invention lug jockey.
Fig. 3 is the vertical view of embodiment of the present invention lug jockey.
Fig. 4 is the explosion figure of embodiment of the present invention lug jockey.
Fig. 5 is the cutaway view of embodiment of the present invention lug jockey along the V-V line of Fig. 3.
Fig. 6 is the cutaway view of embodiment of the present invention lug jockey along the VI-VI line of Fig. 3.
Fig. 7 is the cutaway view of another embodiment of the present invention lug jockey.
Fig. 8 is the cutaway view of further embodiment of this invention lug jockey.
Main element symbol description
| Battery pack | 10 |
| Battery cell | 100 |
| Positive pole ear | 110 |
| Negative lug | 120 |
| Lug jockey | 200 |
| Base | 202 |
| Lid | 204 |
| Conduction joint pin | 206 |
| Lug pad | 208 |
| Bending screening glass | 210 |
| First through hole | 212 |
| Second through hole | 214 |
| Nut | 216 |
| Cover plate | 218 |
| O type lead terminal | 220 |
| Flat shim | 224 |
| Spring shim | 226 |
| Third through-hole | 228 |
| Nut groove | 230 |
| Blind hole | 232 |
| Diapire | 238 |
| Roof | 240 |
| The first side wall | 242 |
| Second sidewall | 244 |
| 3rd sidewall | 246 |
| First base plate | 300 |
| Second base plate | 400 |
| Column | 500 |
| Flexible member | 600 |
| First side | 700 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with the accompanying drawings and the specific embodiments lug jockey provided by the invention and battery pack are described in further detail.
Refer to Fig. 1 to Fig. 4, embodiment of the present invention provides a kind of battery pack 10, comprise multiple mutual superposition battery cell 100 and by interconnective for the lug of the plurality of battery cell 100 lug jockey 200.This lug jockey 200 comprises base 202, lid 204, conduction joint pin 206 and lug pad 208.This lug pad 208 is arranged between this base 202 and this lid 204, and the cross section of this lug pad 208 has fillet.The lug of at least two battery cells 100 is along the level and smooth bending of the fillet of the cross section of this lug pad 208, and overlapped to realize electrical contact between this base 202 and this lid 204.The lug of these at least two battery cells 100 is fixed by this conduction joint pin 206.Lug can be connected with external circuit by this conduction joint pin 206.
This battery cell 100 can be sheet, planar, tabular or layer structure, and through-thickness superposes.Each battery cell 100 is the electrochemical cell that independently can carry out discharge and recharge, as lithium ion battery, lithium-sulfur cell or Ni-MH battery, can be more specifically flexible packing lithium ion battery.The plurality of battery cell 100 can have basically identical shape and size, is parallel to each other and superposes setting, parallel with one another or series connection.Each battery cell 100 comprises two lugs, is respectively positive pole ear 110 and negative lug 120, is interconnected and is connected with external circuit carry out discharge and recharge for making multiple battery cell 100.
When battery cell 100 needs mutually to connect, be that the positive pole ear 110 of a battery cell 100 is interconnected with the negative lug 120 of another battery cell 100.When battery cell 100 needs parallel with one another, be that the positive pole ear 110 of multiple battery cell 100 is interconnected, and the negative lug 120 of multiple battery cell 100 is interconnected.
In one embodiment, this positive pole ear 110 and negative lug 120 are arranged on the same side of this battery cell 100, such as, and in same battery pack 10, the positive pole ear 110 of all battery cells 100 and negative lug 120 are all arranged on the same side of battery pack 10, are all arranged on the first side 700 of this battery pack 10.In same battery pack 10, the positive pole ear 110 of all battery cells 100 is equal with negative lug 120 interval, and the positive pole ear 110 of different battery cell 100 and negative lug 120 are alignd on the Direction of superposition of the plurality of battery cell 100.Particularly, mutually connect for making multiple battery cells 100 of same battery pack 10, the positive pole ear 110 of each battery cell 100 aligns on Direction of superposition with the negative lug 120 of adjacent battery cell 100, the negative lug 120 of each battery cell 100 is alignd on Direction of superposition with the positive pole ear 110 of adjacent battery cell 100, to facilitate series connection.
This lug jockey 200 realizes electrical connection for making at least two battery cells 100 in battery pack 10.Two adjacent battery cells 100 are preferably made to realize electrical connection by respective lug.This lug jockey 200 is also arranged on the first side 700 of this battery pack 10.
Refer to Fig. 5 and Fig. 6, the lug that these two needs carry out connecting stretches out respectively from two battery cells 100, and inserts same lug jockey 200, and partly overlaps between this base 202 and lid 204 and arrange, by this base 202 and lid 204 compacting, thus realize stable electrical connection.Particularly, the lug that these two needs carry out connecting can be overlapped between this lid 204 and this lug pad 208.When these two battery cells 100 need parallel connection, these two lugs are all positive pole ear 110 or negative lug 120.When these two battery cells 100 need series connection, these two lugs are respectively positive pole ear 110 and negative lug 120.
This lug can be sheets of conductive structure, as tinsel.Need two lugs carrying out connecting to realize overlapped by bending, this bending place has the supporting construction of fillet by cross section, as lug pad 208 supports, thus forms level and smooth bending.Particularly, the cross section of this lug pad 208 has fillet, therefore has an arc surface seamlessly transitted, and this lug pad 208 is contained in the space between this base 202 and this lid 204, for providing arc surface shape to support to the bending place of lug.This lug is fitted the arc surface of this lug pad 208, along arc surface, level and smooth bending occurs.
Preferably, these two lugs, from straight the stretching out and insert between this base 202 and lid 204 of these two battery cells 100, only carry out bending realizing overlapped in this lug jockey 200 inside.These two lugs can be parallel to each other and relative to stretch out respectively from two adjacent battery cells 100, and extend to same lug jockey 200.
Because lug has less thickness, be generally 0.2 millimeter to 0.5 millimeter, very easily ftracture at folding line or knuckle place when cutting edge shape folding line or knuckle appear in this lug in bending place.Be there is by this cross section the supporting construction of fillet, as lug pad 208 supports this lug, lug is fitted the fillet of cross section of this supporting construction, the arc surface of this supporting construction of namely fitting, thus realize level and smooth bending, lug can be avoided to occur cutting edge shape knuckle in bending place and cause ftractureing during pressing tension.The arc radius of this fillet is selected according to the overall dimensions of this battery cell 100, can be 1mm ~ 10mm, is preferably 2mm ~ 4mm.The angle that this lug bends at every turn can be 90 degree or 180 degree.
Particularly, this lug pad 208 can be a cube, and has the incline that at least one is polished into arc surface.In another embodiment, this lug pad 208 is curved by a sheet material, the transition level and smooth in knee, thus makes cross section bend out as fillet, namely makes this lug pad 208 form an arc surface.
The length of this lug can be longer, thus make two to need the lug connected to have longer lap, and longer lap is conducive to enlarge active surface, thus the heating that reduction produces because big current energising.Therefore these two need the lug connected may need repeatedly to bend in this lug jockey 200.Can be specifically repeatedly back and forth bend between base 202 and lid 204, form folding fan-shaped or zigzag structure.This lug jockey 200 may further include one or more bending screening glass 210, and the cross section of this bending screening glass 210 has fillet, and this lug along the level and smooth bending of the fillet of this bending screening glass 210, and does not occur cutting edge shape flanging.In one embodiment, this bending screening glass 210 is formed by a dull and stereotyped doubling, and the cross section of fold position has fillet.The thickness of this flat board can at 1mm ~ 10mm.Can be such as to have certain thickness metallic plate doubling, fold position seamlessly transits.
By arranging the supporting construction that cross section has fillet in this lug jockey 200; as lug pad 208 and bending screening glass 210, lug can be made all to fit in each bending place this fillet, be formed by this fillet and support; thus smoothly bend, and do not form cutting edge shape knuckle.
Refer to Fig. 7, in another embodiment, also this lug pad 208 can be saved, directly using this base 202 as supporting construction, similar with this lug pad 208, the cross section of this base 202 has fillet, and these two need the lug connected respectively along the bending that two fillets are level and smooth, and overlapped on this base 202 surface.
Refer to Fig. 8; in another embodiment; this lug jockey 10 can comprise the bending screening glass 210 that one or more cross section has fillet further; this bending screening glass 210 and this base 202 are all as the supporting construction of this lug; lug is all fitted in each bending place this fillet; namely to fit the arc surface of this bending screening glass 210, thus smoothly bend, and do not form cutting edge shape knuckle.
This lug is fixed by this conduction joint pin 206.Particularly, the part of the overlap of two lugs that these needs connect has the first through hole 212 be interconnected, and these two lugs through the first through hole 212 of the part of this overlap, thus can be fixed by this conduction joint pin 206.The lug of this battery cell 100 can have wider width, to be adapted to high current charge-discharge.Therefore two or more conduction joint pin 206 can be used to be fixed this lug.Particularly, the part of the overlap of the lug of these at least two battery cells 100 can have the first through hole 212 be interconnected and the second through hole 214 be interconnected, this first through hole 212 and the second through hole 214 spaced, two conduction joint pins 206 can be each passed through this first through hole 212 and the second through hole 214, thus are fixed by these at least two lugs.
When this lug repeatedly bends in this lug jockey 200, can repeatedly through same conduction joint pin 206, therefore this conduction joint pin 206 repeatedly can pass same lug.The position of this lug corresponding conduction joint pin 206 on bending path has multiple first through hole 212.In one embodiment, two conduction joint pins 206 are respectively repeatedly through same lug, and these two need the lug connected repeatedly to be passed by these two conduction joint pins 206 respectively.These two need the position of lug corresponding two the conduction joint pins 206 on bending path connected to have multiple first through hole 212 and the second through hole 214 respectively.
This conduction joint pin 206 for being fixed by lug, and can be fixedly connected with other structure in this base 202, lid 204 and this lug jockey 200 simultaneously, as lug pad 208 and bending screening glass 210.This base 202, lug pad 208, bending screening glass 210 and lid 204 can have the position third through-hole corresponding with this conduction joint pin 206 228; make this conduction joint pin 206 can pass part and this lug pad 208 of the overlap of the lug of this lid 204, this bending screening glass 210, these at least two battery cells 100; finally penetrate in this base 202, be connected with this base 202.This conduction joint pin 206 can be the structures such as screw, bolt, rivet.Refer to Fig. 5 and Fig. 6, in one embodiment, this base 202 can have blind hole 232, and for inserted num 216, nut 216 is fixing in this base 202.This conduction joint pin 206 end has the screw thread of cooperation, is spirally connected with this nut 216, thus is connected with this base 202.Refer to Fig. 7, in another embodiment, this base 202 itself can have nut groove 230, and this conduction joint pin 206 end has the screw thread of cooperation, is directly spirally connected with this base 202.
Further, this lug jockey 200 also can comprise cover plate 218, for covering the base 202 being embedded with nut 216, comes off to prevent nut 216.This lug pad 208 can be arranged on this cover plate 218.In one embodiment, this lug pad 208 is trough body structure, is buckled in outside this cover plate 218.
These two can need the lug connected to be connected with external circuit further by this conduction joint pin 206.Although in actual use, only need battery pack 10 head and the tail two battery cells 100 to be connected with external circuit, each battery cell 100 can be connected with the observation circuit of outside, thus the charge status of each battery cell 100 is monitored.This conduction joint pin 206, while the first through hole 212 penetrating this lug and/or the second through hole 214, forms electrical contact with this lug.In addition, this lug pad 208, nut 216 and/or this bending screening glass 210 by electric conducting material, as metal manufacture, and all can be formed electrical contact with this lug and this conduction joint pin 206, thus are beneficial to conduction.This conduction joint pin 206 can be connected with O type lead terminal 220 near the end of this lid 204, for being connected with external circuit.In one embodiment, this conduction joint pin 206 first through spring shim 226 and flat shim 224, then wears this lid 204.This spring shim 226 and flat shim 224 are arranged between the nut of this conduction joint pin 206 and this lid 204.One end of this O type lead terminal 220 can be sandwiched between two flat shims.
This lug jockey 200 provides protection by this base 202 with this lid 204 pairs of lugs.This base 202 compresses mutually with lid 204, makes the mutual compacting of the lug of these two battery cells 100.This conduction joint pin 206 can play to be fixed and compresses the effect of this base 202 and lid 204, and in addition, this base 202 can have with lid 204 structure coordinated, and can be mutually permanently connected both making.Such as, this base 202 can be rectangular configuration with lid 204, and this base 202 has rectangular diapire 238, and this lid 204 has rectangular roof 240.This base 202 has two relative the first side walls 242, vertical with this diapire 238, and what be parallel to each other from the two ends of this diapire 238 length direction extends to this lid 204.This lid 204 has two the second relative sidewalls 244, vertical with this roof 240, and what be parallel to each other from the two ends of this roof 240 Width extends to this base 202.The first side wall 242 of this base 202, the second sidewall 244 of this lid 204, between this roof 240 and diapire 238, form a spatial accommodation, to hold this lug, lug pad 208, conduction joint pin 206 and bending screening glass 210.This lid 204 has two the 3rd relative sidewalls 246 further, vertical with this roof 240, is arranged on this roof 240 two ends along its length.The inner side of the first side wall 242 of this base 202 is resisted against the outside of the 3rd sidewall 246.This first side wall 242 and the 3rd sidewall 246 can have the slot cooperatively interacted, thus make this first side wall 242 plug together fixing with the 3rd sidewall 246.Distance between the width of the diapire 238 of this base 202 and the lug of adjacent two battery cells 100 is substantially equal, having gap, passing through for making lug between the second sidewall 244 of this lid 204 and the diapire 238 of this base 202.This diapire 238 and the width of roof 240 are all greater than the width of this lug, and arrange along the Width of this lug, thus can hold this lug.This base 202 and lid 204 can have insulation property, as being made up of insulating material.
The embodiment of the present invention provides a plate lug connecting method further, comprising:
S1, provide this lug jockey 200 and tool, this tool has a shape, can make this lug be bent in this lug jockey 200 along the shape of this tool needed for the reservation shape that formed;
S2, on the lug being bent into reservation shape to should lug jockey 200 conduction joint pin 206 position punching;
S3, will be bent into reservation shape and punching after lug be assembled in this lug jockey 200.
This tool can have the supporting construction of fillet for cross section, as with this lug pad 208, bend screening glass 210 and/or the identical shape of this base 202.Two need the lug connected to bend on this tool and overlap, form the shape identical with in lug jockey 200.This tool is same with this supporting construction has this third through-hole 228, and position is corresponding with the conduction joint pin 206 in this lug jockey 200.This lug is got this first through hole 212 and/or the second through hole 214 on this tool.
The embodiment of the present invention provides a kind of lug jockey 200 further, comprise base 202, lid 204, conduction joint pin 206 and lug pad 208, this lug pad 208 is arranged between this base 202 and this lid 204, the cross section of this lug pad 208 has fillet, make lug along the level and smooth bending of this fillet, this conduction joint pin 206 is for the first through hole 212 of the part of the overlap through two lugs.
The embodiment of the present invention provides a kind of lug jockey 200 further, comprise base 202, lid 204 and conduction joint pin 206, the cross section of this base 202 has fillet, make lug along the level and smooth bending of this fillet, this conduction joint pin 206 is for the first through hole 212 of the part of the overlap through two lugs.
The battery pack that the embodiment of the present invention provides and lug jockey can closely, firmly, simply link together lug, lug and external metallization framework can be prevented to be short-circuited accident, and the impact that high temperature when completely avoid lug soldering causes for battery inside, and complicated operating process can not be had again as ultrasonic bonding.
In addition, the present invention's employing is similar to folding paper fan method and is folded by positive and negative lug, having the bending edge of the supporting construction protection lug of fillet, then with conducting electricity joint pin through the lug folded, being pressed together by positive and negative lug with cross section.Can prevent lug compress time because of pressure cross ambassador's lug bending part cracking lose conductive capability, cause lug contact area reduce and contact resistance increase fault occur.This lug connected mode can meet the properties requirement of electrokinetic cell, has really accomplished zero injury to the battery core in assembling process, can replace connecting soldering or ultrasonic bonding for power soft-packed lithium-ion battery pole ear.The connection of lug is tight, firm, and contact resistance is little, can not affect battery capacity in use, cycle performance and fail safe.
In addition, those skilled in the art also can do other changes in spirit of the present invention, and certainly, these changes done according to the present invention's spirit, all should be included within the present invention's scope required for protection.
Claims (12)
1. a battery pack, comprise the battery cell of multiple mutual superposition, it is characterized in that, this battery pack comprises lug jockey further, this lug jockey comprises base, lid, conduction joint pin and lug pad, this lug pad is arranged between this base and this lid, and the cross section of this lug pad has fillet, the lug of at least two battery cells is along the level and smooth bending of the fillet of the cross section of this lug pad, and it is overlapped to realize electrical contact between this lug pad and this lid, the part of the overlap of the lug of these at least two battery cells has the first through hole be interconnected, this conduction joint pin is through this first through hole, this lug repeatedly back and forth bends between this base and lid, same conduction joint pin is repeatedly through same lug.
2. battery pack as claimed in claim 1, it is characterized in that, the part of the overlap of the lug of these at least two battery cells has the first through hole be interconnected and the second through hole be interconnected, and makes two conduction joint pins can be each passed through this first through hole and the second through hole.
3. battery pack as claimed in claim 1, is characterized in that, this conduction joint pin passes the part of the overlap of the lug of this lid and these at least two battery cells successively, and is connected with this base.
4. battery pack as claimed in claim 3, it is characterized in that, this base has nut groove, and this conduction joint pin end has the screw thread of cooperation, is directly spirally connected with this base.
5. battery pack as claimed in claim 3, it is characterized in that, be embedded with nut in this base, this conduction joint pin end has the screw thread of cooperation, is spirally connected with this nut, thus is connected with this base.
6. battery pack as claimed in claim 1, it is characterized in that, this lug, from straight the stretching out and insert between this base and lid of these at least two battery cells, only bends in this lug jockey inside.
7. battery pack as claimed in claim 1, it is characterized in that, the arc radius of this fillet is 1mm ~ 10mm.
8. battery pack as claimed in claim 1, it is characterized in that, comprise one or more bending screening glass further, the cross section of this bending screening glass has fillet, and this lug is along the level and smooth bending of the fillet of the cross section of this bending screening glass.
9. battery pack as claimed in claim 8, is characterized in that, the fillet that this lug is all had by the cross section of this one of lug pad and this bending screening glass in each bending place supports smoothly to bend.
10. a battery pack, comprise the battery cell of multiple mutual superposition, it is characterized in that, this battery pack comprises lug jockey further, this lug jockey comprises base, lid and conduction joint pin, the cross section of this base has fillet, the lug of at least two battery cells is along the level and smooth bending of the fillet of the cross section of this base, and it is overlapped to realize electrical contact between this lug pad and this lid, the part of the overlap of the lug of these at least two battery cells has the first through hole be interconnected, this conduction joint pin is through this first through hole, this lug repeatedly back and forth bends between this base and lid, same conduction joint pin is repeatedly through same lug.
11. 1 kinds of lug jockeys, comprise base, lid, conduction joint pin and lug pad, this lug pad is arranged between this base and this lid, the cross section of this lug pad has fillet, for making lug along the level and smooth bending of this fillet, this conduction joint pin is used for the first through hole through the part of the overlap of two lugs, and this lug repeatedly back and forth bends between this base and lid, and same conduction joint pin is repeatedly through same lug.
12. 1 kinds of lug jockeys, comprise base, lid and conduction joint pin, the cross section of this base has fillet, for making lug along the level and smooth bending of this fillet, this conduction joint pin is used for the first through hole through the part of the overlap of two lugs, this lug repeatedly back and forth bends between this base and lid, and same conduction joint pin is repeatedly through same lug.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410113124.0A CN104009198B (en) | 2014-03-25 | 2014-03-25 | Lug jockey and there is the battery pack of lug jockey |
| PCT/CN2015/070974 WO2015143936A1 (en) | 2014-03-25 | 2015-01-19 | Electrode tab connection apparatus and battery pack provided with electrode tab connection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410113124.0A CN104009198B (en) | 2014-03-25 | 2014-03-25 | Lug jockey and there is the battery pack of lug jockey |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104009198A CN104009198A (en) | 2014-08-27 |
| CN104009198B true CN104009198B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410113124.0A Active CN104009198B (en) | 2014-03-25 | 2014-03-25 | Lug jockey and there is the battery pack of lug jockey |
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| Country | Link |
|---|---|
| CN (1) | CN104009198B (en) |
| WO (1) | WO2015143936A1 (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009198B (en) * | 2014-03-25 | 2016-01-20 | 江苏华东锂电技术研究院有限公司 | Lug jockey and there is the battery pack of lug jockey |
| CN106558672B (en) * | 2015-09-25 | 2023-08-29 | 东莞新能安科技有限公司 | Battery pack |
| CN105449149B (en) * | 2015-12-30 | 2017-11-14 | 苏州科纽普新能源科技有限公司 | Electrode tab connection structure in a kind of lithium battery group |
| CN106129318B (en) * | 2016-08-25 | 2018-11-02 | 合肥国轩高科动力能源有限公司 | A kind of connection component of battery pole ear and cover board |
| CN106784572B (en) * | 2017-02-21 | 2022-11-04 | 湖南格瑞普新能源有限公司 | Lithium ion battery pack, assembling method and tab connecting mechanism |
| CN106848372B (en) * | 2017-03-21 | 2023-06-23 | 无锡奥特维智能装备有限公司 | Battery cell processing production line |
| CN108428847B (en) * | 2017-04-07 | 2023-08-29 | 宁德时代新能源科技股份有限公司 | secondary battery |
| CN109148777B (en) * | 2018-08-31 | 2023-09-08 | 江苏引创照明科技有限公司 | Polymer lithium battery bracket for solar street lamp |
| CN110323507B (en) * | 2019-07-31 | 2024-02-27 | 惠州市德合盛科技有限公司 | Cylindrical battery capacity-dividing cabinet |
| CN112952218B (en) * | 2019-11-26 | 2022-12-13 | 东莞新能德科技有限公司 | Battery, manufacturing method of battery, electronic device and testing method of battery |
| CN111029490A (en) * | 2019-11-28 | 2020-04-17 | 欣旺达电动汽车电池有限公司 | Single battery and power battery pack |
| CN112698233B (en) * | 2020-12-15 | 2022-09-13 | 合肥国轩高科动力能源有限公司 | False welding detection method and system for lithium ion power battery pack |
| CN216288853U (en) * | 2021-10-29 | 2022-04-12 | 比亚迪股份有限公司 | Utmost point ear is drawn forth subassembly, utmost point core subassembly and battery |
| CN114054610B (en) * | 2021-10-29 | 2023-08-22 | 广东利元亨智能装备股份有限公司 | Tab pressing device, pole piece winding equipment and pole tab pressing method |
| CN115911615A (en) * | 2022-11-18 | 2023-04-04 | 浙江杭可科技股份有限公司 | A pressfitting mechanism is equallyd divide to variable apart from location for square battery charge-discharge |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202178406U (en) * | 2011-07-29 | 2012-03-28 | 比亚迪股份有限公司 | Connecting piece between battery modules and battery system |
| CN202633425U (en) * | 2012-05-18 | 2012-12-26 | 万向电动汽车有限公司 | Compression structure for tab connection |
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| US20080118821A1 (en) * | 2006-11-13 | 2008-05-22 | Gehring Todd M | Battery pack |
| CN202308129U (en) * | 2011-10-20 | 2012-07-04 | 常州华日升凯晟能源科技有限公司 | Lithium-ion battery pack |
| CN203225300U (en) * | 2013-05-09 | 2013-10-02 | 辽源中吉新能源科技有限公司 | Pole ear connecting device for dynamical type soft roll lithium battery module |
| CN104009198B (en) * | 2014-03-25 | 2016-01-20 | 江苏华东锂电技术研究院有限公司 | Lug jockey and there is the battery pack of lug jockey |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202178406U (en) * | 2011-07-29 | 2012-03-28 | 比亚迪股份有限公司 | Connecting piece between battery modules and battery system |
| CN202633425U (en) * | 2012-05-18 | 2012-12-26 | 万向电动汽车有限公司 | Compression structure for tab connection |
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| WO2015143936A1 (en) | 2015-10-01 |
| CN104009198A (en) | 2014-08-27 |
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