CN103872338A - Current collector for energy store and energy store with the current collector - Google Patents
Current collector for energy store and energy store with the current collector Download PDFInfo
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- CN103872338A CN103872338A CN201310657481.9A CN201310657481A CN103872338A CN 103872338 A CN103872338 A CN 103872338A CN 201310657481 A CN201310657481 A CN 201310657481A CN 103872338 A CN103872338 A CN 103872338A
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- leg
- current
- collector
- accumulator
- jockey
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- 238000009413 insulation Methods 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 7
- 229910052802 copper Inorganic materials 0.000 claims description 7
- 239000010949 copper Substances 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- 239000004411 aluminium Substances 0.000 claims description 5
- 238000003860 storage Methods 0.000 claims description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 2
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 2
- 230000005518 electrochemistry Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 9
- 238000005452 bending Methods 0.000 description 7
- 230000002349 favourable effect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000004804 winding Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000010406 cathode material Substances 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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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
- H01M50/528—Fixed electrical connections, i.e. not intended for disconnection
-
- 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
- H01M50/533—Electrode connections inside a battery casing characterised by the shape of the leads or tabs
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
- H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
-
- 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
- H01M50/536—Electrode connections inside a battery casing characterised by the method of fixing the leads to the electrodes, e.g. by welding
-
- 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
-
- 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
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- 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
- H01M50/538—Connection of several leads or tabs of wound or folded electrode stacks
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
The invention relates to a current collector (240) for an energy store used for electrochemistry. The current collector has a first support (242) and a second support (244). A connection portion (246) arranged between the first support (242) and a second support (244). The connection portion (246) is configured to connect the first support (242) with the second support (244). The current collector (240) allows the energy store (10) to have improved stability and more effective operation. Besides, the invention also relates to an energy store (10), such as a lithium ion battery with the current collector (240).
Description
Technical field
The present invention relates to a kind of current-collector for electrochemical accumulator.In addition, the invention still further relates to a kind of electrochemical accumulator with such current-collector, particularly as lithium-ion-battery.
Background technology
Electrochemical energy accumulator, for example lithium-ion-battery are widely used in many daily lifes.For example they for example, are applied in computer-portable computer (Laptops), mobile phone, smart mobile phone (Smartphone) neutralize other purposes.Such battery also the current vehicle developing rapidly, for example automobile electrified aspect demonstrate its advantage.
In order to access the electric current producing by such electrochemical accumulator, common this accumulator have respectively can be mechanically with electricity the positive and negative contact utmost point in other words that contacts.In this case, the described contact in other words utmost point is connected with anode or with negative electrode by current-collector, intercept from electrochemical accumulator in order to the mode with suitable for electric current.
Summary of the invention
Theme of the present invention is a kind of current-collector for electrochemical accumulator, it has at least one first leg and at least one second leg, wherein, the jockey that described at least one first leg and described at least one second leg are arranged between described at least one first leg and described at least one second leg by least one is at least in part joined to one another.
In the sense of the present invention, current-collector is a kind of structure member of conduction particularly, it can provide conduction to be connected at the anode of accumulator or negative electrode or coupled conducting element, for example electric current follower and contact in other words between the utmost point, so that tap electric energy.
In addition, in the sense of the present invention, electrochemical accumulator can be a kind of battery especially, for example a kind of storage battery that can again charge.For example electrochemical accumulator can be a kind of accumulator of lithium base, for example, be lithium-ion-battery.
In addition, in the sense of the present invention, jockey can be regarded as a kind of like this element nonconducting or that preferably conduct electricity, this original paper at least in part, is preferably fully arranged between described at least one first leg and described at least one second leg, and be connected with these legs, or be fixed on these legs.Therefore, described jockey or multiple jockey are mainly used in being fixed to one another of these respective leg.
Aforesaid current-collector can produce a kind of stable especially accumulator, and it can reliable especially and operation efficiently.
For this reason, described current-collector has at least one first leg and at least one second leg.In this case, described the first leg and the second leg can arrange at least in part abreast.In this case, first leg and second leg can be only set, or multiple the first and second legs are set.
In this case, the jockey that described at least one first leg and described at least one second leg are arranged between described the first leg and described the second leg by least one is at least in part connected to each other.Multiple the first legs are for example set, and the jockey that second leg of these first legs respectively and in multiple the second leg is arranged between corresponding the first leg and corresponding the second leg by least one is at least in part joined to one another.
The such scheme of current-collector can allow to design a kind of have the first leg and the second leg being connected with this first leg and especially can be counter-bending and therefore stable especially leg profile or unit.By this measure can obviously compensate better those may be applied on accumulator or battery unit and be for example applied in this case the power on current-collector.This has caused: with compared with known some schemes of prior art, the accumulator that is equipped with aforementioned current-collector has larger stability, and can allow accumulator to move especially reliably.Therefore, by using aforesaid current-collector can reduce significantly probability failure operation state or that damage.
In addition, current-collector or it the stability of increase of leg or the counter-bending rigidity of increase also allow by described leg with compared with the current-collector of prior art, be arranged in the region of obvious expansion, or make described leg there is obviously larger length.Can improve contacting of current-collector and electrode by this measure, this has caused electric current to circulate better, and has therefore improved the operation of accumulator, has also caused in addition improving the stability of the contact between electrode and current-collector.
In addition also can expand significantly the cross-sectional area of leg.By this measure, in the time forming described jockey by electric conducting material, can reduce the resistance of whole current-collector, this additionally allows accumulator especially effectively or with extra high power to move.
In a word, aforesaid current-collector can more stably be manufactured accumulator, and makes in this case described accumulator have extra high efficiency.
In a kind of framework of scheme, described at least one first leg and described at least one second leg form a leg pair.Therefore in this scheme, always two legs connect into a leg pair by described jockey.A leg pair can be set in this case, or multiple legs pair are preferably set.Therefore, in this scheme, current-collector can match with the ancillary equipment of common accumulator especially simply, can especially simply aforesaid current-collector be integrated in multiple existing accumulators by this measure.In this case, also can be by described leg to being called contact fork.
In the framework of another program, described at least one first leg and described at least one second leg can by described at least one jockey U-shaped be joined to one another.In this scheme, can realize the stable especially connection of respective leg, wherein, can realize especially simply in addition and the mating of existing accumulator.Particularly in this scheme, can make full use of this situation, ought for example in a kind of prismatic scheme, have the accumulator of multiple routines, these electrodes are usually for diaphragm type designs, and self is overlapping, wherein, film end can be stretched out respectively from accumulator housing, in order that electrically contact these film ends.Present described current-collector can be fixed on these film ends, and this point can be particularly advantageous in this scheme.Particularly can specify in this case, the U profile that can so design described U-shaped shape or form, U profile is outwardly open, and connecting surface or jockey therefore special level land abut on accumulator.Can obtain another advantage by this measure, still can approach well the contact fork on the film strip stretching out for being fixed on electrode.
In the framework of another program, can the described jockey of plate shape ground design.Therefore in this scheme, described jockey can be connected with corresponding leg at its fringe region place, and between these legs, has the extension of plate shape.In this case, according to regulation of the present invention, the structure of this plate shape can have special significance, described jockey it length and width aspect there is little number.For example jockey can the design of diaphragm type ground.In this scheme, the king-sized region of respective leg or contact fork can be connected to each other, and this makes extra high stability or king-sized bending resistance become possibility.In addition, in this scheme, can also increase significantly especially the cross-sectional area on described leg, can especially effectively reduce resistance by this measure, and therefore can especially effectively improve the efficiency of accumulator.In the time only using a jockey, the latter can be advantageous particularly.
In the framework of another program, multiple jockeys can be set.In this scheme, can strengthen selectively for example described leg pair, but wherein need the material of use but few especially.Therefore, in this scheme, in the time manufacturing described current-collector, material cost can be low especially.In addition, also can saving in weight, this particularly movably with time for current-collector or be very favourable for the accumulator that is equipped with this current-collector.In addition, aspect suitable stability, regulation, particularly strengthens in the place of needs, and does not need to strengthen in the region that does not need reinforcement.
In the framework of another kind of scheme, described at least one first leg and described at least one second leg can be made up of copper or aluminium.In this scheme, on the one hand, the cost of producing described current-collector is advantageous particularly because aforesaid for the production of material on cost, be not too high.In addition, particularly when the foregoing material of regulation is during also for electrode or for the current diverter (Stromableiter) of electrode, can specify to use a kind of unified material, by this measure, in the time being transitioned into electrode or current diverter from current-collector, there will not be electromotive force, this can allow accumulator particularly to move in accordance with regulations and reliably.In addition, particularly previous materials can easily be processed, and processing cost is favourable, and these materials have good electric conductivity in this case, and this can make accumulator move especially expeditiously.
In the framework of another program, described at least one first leg, described at least one second leg and described at least one jockey can integrally design.This scheme can make that processing method is simple and cost is favourable, and this can make current-collector or be equipped with the constructions cost of accumulator of current-collector advantageous particularly.
In the framework of another program, described at least one first leg, described at least one second leg have respectively contact end and insulation end, wherein, insulation end is so bending soft, and the insulation end of the first leg and the insulation end of the second leg can arrange contiguously.Therefore in this scheme, can reach: both can there be spacing the insulation end of the first leg and the insulation end of the second leg and have arranged, and also can arrange contiguously.In this scheme, can obtain such advantage, can simplify accumulator or current-collector are installed to the installment work on the support particularly insulating.This can reach by following measure, these two legs at least in part by can be bending, particularly flexible material is made.In addition, this also can accomplish, and its way is particularly on insulation end, not to be provided for fixing the jockey of the first leg and the second leg.Therefore the counter-bending rigidity increasing in this scheme can particularly arrange the region that has spacing with the end of insulating.
About please at length consulting according to other technical characterictic of current-collector of the present invention and advantage some explanations that relate to according to accumulator of the present invention, accompanying drawing and accompanying drawing description.
In addition, theme of the present invention is also a kind of accumulator, particularly a kind of lithium-ion-storage battery, and it has at least one current-collector designing as described previously.
Such accumulator can have stable especially and reliable current-collector.In this current-collector, can better compensate significantly those and may be applied to the power on accumulator or battery unit.In addition this can allow to contact cables manufacturing and obtains greatlyr significantly, or with compared with the current-collector of prior art, has obviously larger length.Can make current-collector and electrode have better contact by this measure, this can cause accumulator better to move, and also can cause having in addition better stability.In addition, also can increase significantly cross-sectional area on described leg or that contact is pitched.Just reduced the resistance of whole current-collector by this measure, this also additionally allows the operation especially expeditiously of accumulator, or with extra high Power operation.
Can especially stably manufacture in a word such accumulator, and there is in this case extra high efficiency.
Can be for example prismatic battery by accumulator designs.In this scheme, compare with the battery of other type, can make that cell body is long-pending to be minimized, therefore, when volume is just can produce more powerful accumulator can compare time, or just need to obvious less position or structure space when power is identical.This is particularly favourable for mobile use.
In a kind of framework of scheme, described at least one current-collector can be welded on the anode or negative electrode of accumulator.In this scheme, current-collector can be realized stable especially connection with described anode or negative electrode, and can make in this case that manufacture method is simple especially and cost is favourable.Therefore,, in this scheme, accumulator is safety and operation reliably especially.In this case, what is called is welded to welding on anode or negative electrode and also comprises being in the sense of the present invention welded to anode or negative electrode and conduct electricity the wire guiding member that is connected, for example particularly welding on current diverter (Stromableiter), because these parts are respectively on the current potential identical with anode or negative electrode, and therefore conventionally these parts are seen as and belonged to corresponding electrode in the sense of the present invention.
About please at length consulting according to other technical characterictic of accumulator of the present invention and advantage the explanation of describing about current-collector according to the present invention, accompanying drawing and accompanying drawing.
Brief description of the drawings
Show according to other advantage of theme of the present invention and some favourable schemes by these accompanying drawings, and in the following description these are described.Wherein it should be noted that these accompanying drawings only have the character of description, and do not think the present invention is had to the restriction of certain form.
These accompanying drawings are:
Fig. 1: for the sketch of the structure of accumulator of the present invention;
Fig. 2: according to the sketch of the current-collector of prior art;
Fig. 3: on accumulator according to the sketch of the current-collector of Fig. 2;
Fig. 4: according to the sketch of current-collector of the present invention;
Fig. 5: on accumulator according to the sketch of the current-collector of Fig. 4.
Embodiment
Figure 1 illustrates a kind of partly structure exemplary and that be not construed as limiting of accumulator 10.In this case, according to particularly a kind of lithium-ion storage battery of accumulator described in Fig. 1 10, it has the battery unit of prismatic shape.According to the scheme of Fig. 1, a kind of is a kind of element of winding 12 in order to obtain the direct essential element of energy, in this element of winding, scribble anode material copper film, scribble that the cathodic coating of cathode material and for example two plastic films-they are used as spacer or barrier film-arrange overlappingly or be wound around, and are driven plain.In order to electrically contact, described copper film and aluminium film arrange to slight misalignment in opposite direction along being wound around axis in this case.Like this, a described copper film therein narrow limit stretches out, and aluminium film stretches out on another narrow limit.In this case, the film strip stretching out 14 so occurring electrically contacts for anode or negative electrode, particularly also will being illustrated with reference to figure 3 in the back as this point.In this case, for the purpose of obviously, only show in the drawings the film strip stretching out 14 of the utmost point.In the clear mode of technical staff, for each utmost point, namely housing 18 be adjacent to also arrange with the opposed side of film strip 14 and with the contrary utmost point film strip 14 stretching out, in order that also contact these film strips.
In addition, also have and be called NSD(English according to the accumulator of Fig. 1 10: Nail Penetration Safety Device(nail penetrates safety device)) safety device 16.In addition, be also provided for holding the described element of winding 12 or for holding the container 18 of some elements of winding 12, described container can have electric insulation arrangement 20 in outside, as shrinkage hose pyrocondensation plasticity in other words sleeve pipe.In described container, at container bottom place, electric insulation arrangement 22 is also set.In addition described container 18 is particularly equipped with liquid electrolyte.
In addition,, in order to electrically contact, described accumulator 10 also has at this current-collector 240 shown in sketch and that describe in detail in Fig. 4 and Fig. 5 only, will describing in detail in the back as this current-collector.Described current-collector 240 be electrically connected for the connecting bolt 26 that mechanically and electricly contacts described accumulator 10.In addition, be also provided for the seal 28 of the element of winding 12 and the seal 30 for current-collector.
In addition, described container 18 up at least in part, particularly cover by a cover plate 32 safely, between described cover plate and current-collector 240 and particularly and between connecting bolt 26, arranges sealing device 34 and sealed insulation body 36 around ground.In addition,, in order for example to give off excessive pressure from container 18 in the time having fault, the safety plate plate 38 that splits in other words is also set in cover plate 32.In addition, accumulator 10 also comprises film, and for example OSD film 40, is embedded into described film in cover plate 32.In addition, cover plate dielectric film 42 can also be set on cover plate 32, described cover plate dielectric film has some pits 44.In the inside of pit 42 and on cover plate 32, be particularly adjacent to also to arrange a current potential plate 46 and upper plate 48 disposed thereon with connecting bolt 26.Described upper plate is arranged on connecting plate 52 together with seal 50.In addition,, as from seeing Fig. 1, below connecting plate 52, be provided with spacer insulator 54.In addition, a plunger 56 being embedded in cover plate 32 is also set.
In addition, figure 2 illustrates the current-collector 200 according to prior art.Such current-collector 200 comprises two contact forks 202, and described contact fork comprises respectively two legs 204.Described contact fork be arranged on join domain 206 top and that be not therefore arranged between leg 204 and be connected, described join domain is connected with the vertically disposed platform 208 of described join domain 206 again with substantially.Described platform can be fixed on accumulator 10 around described connecting bolt 26 ground by hole 210, as shown in Figure 3.About Fig. 3, with according to the accumulator 10 of Fig. 1 identical or comparable structure member substantially use identical Reference numeral to represent, therefore, refer to the explanation of aforesaid Fig. 1 about the detailed description of this respect.
Figure 4 illustrates according to current-collector 240 of the present invention.Such current-collector 240 comprises at least one first leg 242 and at least one second leg 244, wherein, the jockey 246 that described at least one first leg 242 and described at least one second leg 244 are arranged between the first leg 242 and the second leg 244 by least one is at least in part connected to each other.According in this scheme of Fig. 4, described at least one first leg 242 and described at least one second leg 244 form a leg pair, and described leg is to being also called contact fork.In addition, described at least one first leg 242 and described at least one second leg 244 by coupling together each other according to the jockey of the tabular formation of Fig. 4 246 U-shaped.In this case, described at least one first leg 242 and described at least one second leg 244 and described at least one jockey 246 integrally form.In addition, described at least one first leg 242 and described at least one second leg 244 are made up of copper or aluminium.In this case, particularly can select described material according to location, wherein, particularly can be made of copper completely with the current-collector 240 of anodic bonding, and the current-collector 240 being connected with negative electrode particularly can be completely made of aluminum.As can see from Figure 4, in this scheme, be provided with two legs pair.
In addition, can also see that described current-collector 240 has such join domain 248, be that this join domain can be connected with leg 242,244, or start to form described leg 242,244 from this join domain, in addition, it is also connected with platform 250, and described platform is substantially perpendicular to leg 242,244 ground and aims at.Described platform 250 has for a kind of connecting bolt 26 or for example for holding or arrange the centring pin 252 of described connecting bolt 26.
In Fig. 5, show very simplifiedly the accumulator 10 being equipped with according to the current-collector 240 of Fig. 4.Can see described connecting bolt 26 or described centring pin 252, described centring pin contacts with the platform 250 of current-collector 240.In addition also show the leg pair with leg 242,244, they are fixed on the region 14 of stretching out.In addition also show jockey 246, described jockey by leg 242,244 U-shapeds couple together.
In this external Fig. 5, can also see, described at least one first leg 242 has respectively the end of contact 254 and insulation end 256 with described at least one second leg 244, wherein, insulation end 256 is so soft bending, and the insulation end 256 of the insulation end 256 of described the first leg 242 and described the second leg 244 can arrange contiguously.For example can make the installation of seal become easy by this measure.
In addition it can also be seen that, because these legs are to having larger stability, so these legs to can arrange compare-go out as shown in Figure 3 with the scheme of prior art like that-length is obviously larger.This can improve conductive characteristic significantly.
Claims (10)
1. for the current-collector of electrochemical energy accumulator, there is at least one first leg (242) and at least one the second leg (244), wherein, the jockey (246) that described at least one first leg (242) and described at least one second leg (244) are arranged between described at least one first leg (242) and described at least one second leg (244) by least one is at least in part connected to each other.
2. according to current-collector claimed in claim 1, wherein, described at least one first leg (242) and described at least one second leg (244) are configured to leg pair.
3. according to the current-collector described in claim 1 or 2, wherein, described at least one first leg (242) is connected by described at least one jockey (246) each other with described at least one second leg (244) U-shaped.
4. according to the current-collector described in any one in claims 1 to 3, wherein, jockey (246) plate shape ground forms.
5. according to the current-collector described in any one in claim 1 to 4, wherein, multiple jockeys (246) are set.
6. according to the current-collector described in any one in claim 1 to 5, wherein, described at least one first leg (242) and described at least one second leg (244) are made up of copper or aluminium.
7. according to the current-collector described in any one in claim 1 to 6, wherein, described at least one first leg (242) and described at least one second leg (244) and described at least one jockey (246) integrally form.
8. according to the current-collector described in any one in claim 1 to 7, wherein, described at least one first leg (242) has respectively the end of contact (254) and insulation end (256) with described at least one second leg (244), wherein, these insulation ends (256) are so flexible, and the insulation end (256) of described the first leg (242) and the insulation end (256) of the second leg (244) can arrange contiguously.
9. accumulator, particularly lithium-ion-storage battery, have according at least one current-collector (240) described in any one in claim 1 to 8.
10. according to accumulator claimed in claim 9, wherein, described at least one current-collector (240) is welded on the anode or negative electrode of accumulator (10).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201210222776 DE102012222776A1 (en) | 2012-12-11 | 2012-12-11 | Current collector for electrochemical energy store e.g. lithium ion battery, has connection portion that arranged between first support and second support and is configured to connect first support with second support |
| DE102012222776.8 | 2012-12-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103872338A true CN103872338A (en) | 2014-06-18 |
| CN103872338B CN103872338B (en) | 2018-06-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310657481.9A Active CN103872338B (en) | 2012-12-11 | 2013-12-09 | Current-collector for accumulator and the accumulator with such current-collector |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103872338B (en) |
| DE (1) | DE102012222776A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100310913A1 (en) * | 2009-06-04 | 2010-12-09 | Sung-Kab Kim | Rechargeable battery and method of manufacturing the same |
| CN102130319A (en) * | 2010-01-12 | 2011-07-20 | Sb锂摩托有限公司 | rechargeable battery |
| CN102208594A (en) * | 2010-03-30 | 2011-10-05 | Sb锂摩托有限公司 | Secondary battery |
| CN103050656A (en) * | 2011-10-13 | 2013-04-17 | 三星Sdi株式会社 | Rechargeable battery |
| CN104662708A (en) * | 2012-09-26 | 2015-05-27 | 罗伯特·博世有限公司 | Battery cell having a current collector for housing contacting |
-
2012
- 2012-12-11 DE DE201210222776 patent/DE102012222776A1/en active Pending
-
2013
- 2013-12-09 CN CN201310657481.9A patent/CN103872338B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100310913A1 (en) * | 2009-06-04 | 2010-12-09 | Sung-Kab Kim | Rechargeable battery and method of manufacturing the same |
| CN102130319A (en) * | 2010-01-12 | 2011-07-20 | Sb锂摩托有限公司 | rechargeable battery |
| CN102208594A (en) * | 2010-03-30 | 2011-10-05 | Sb锂摩托有限公司 | Secondary battery |
| CN103050656A (en) * | 2011-10-13 | 2013-04-17 | 三星Sdi株式会社 | Rechargeable battery |
| CN104662708A (en) * | 2012-09-26 | 2015-05-27 | 罗伯特·博世有限公司 | Battery cell having a current collector for housing contacting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103872338B (en) | 2018-06-08 |
| DE102012222776A1 (en) | 2014-06-12 |
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