CN103872338B - Current-collector for accumulator and the accumulator with such current-collector - Google Patents
Current-collector for accumulator and the accumulator with such current-collector Download PDFInfo
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- CN103872338B CN103872338B CN201310657481.9A CN201310657481A CN103872338B CN 103872338 B CN103872338 B CN 103872338B CN 201310657481 A CN201310657481 A CN 201310657481A CN 103872338 B CN103872338 B CN 103872338B
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- leg
- current
- accumulator
- collector
- attachment device
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- 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
- 230000005518 electrochemistry Effects 0.000 abstract description 8
- 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
- 239000000463 material Substances 0.000 description 8
- 238000005452 bending Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000009413 insulation Methods 0.000 description 4
- 238000004804 winding Methods 0.000 description 4
- 239000000470 constituent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 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
- 238000009825 accumulation Methods 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 238000004364 calculation method Methods 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
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000003792 electrolyte Substances 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
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- 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
- H01M50/528—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
- 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
Landscapes
- 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 present invention relates to a kind of current-collectors of the accumulator for electrochemistry（240）, it has at least one first leg（242）With at least one second leg（244）, wherein, at least one first leg（242）With at least one second leg（244）At least one first leg is arranged at least partially through at least one（242）With at least one second leg（244）Between attachment device（246）It is joined to one another.Such current-collector（240）Allow accumulator（10）There are widened stability and more effectively operation.Moreover, it relates to a kind of accumulator（10）, such as particularly there is such current-collector（240）Lithium ion battery.
Description
Technical field
The present invention relates to a kind of current-collectors of the accumulator for electrochemistry.Moreover, it relates to a kind of have this
The accumulator of the electrochemistry of the current-collector of type, particularly such as lithium-ion-battery.
Background technology
Electrochemical energy accumulator, such as lithium-ion-battery are widely used in many daily lifes.Such as they are being counted
Calculation machine-such as portable computer（Laptops）, mobile phone, smart mobile phone（Smartphone）It neutralizes and is obtained in other purposes
To application.Such battery also shows its in terms of vehicle, such as automobile the electrification currently rapidly developed
Advantage.
In order to pick up through electric current caused by the accumulator of such electrochemistry, usually this accumulator difference
With the positive and negative contact that mechanically can with electric contact pole in other words.In this case, the contact is in other words
Pole is connected by current-collector with anode or with cathode, in order to being intercepted from the accumulator of electrochemistry in an appropriate manner
For the electric current used.
Invention content
Subject of the present invention is a kind of current-collector of the accumulator for electrochemistry, it is at least one first leg and extremely
Few second leg, wherein, at least one first leg and at least one second leg are at least partially through at least one
A attachment device being arranged between at least one first leg and at least one second leg is joined to one another.
In the sense of the present invention, current-collector can be particularly a kind of structure member of conduction, it can be in the sun of accumulator
Pole either cathode or coupled conducting element, such as electric current follower and contact provide between pole in other words it is conductive even
It connects, to tap electric energy.
In addition, in the sense of the present invention, the accumulator of electrochemistry especially can be a kind of battery, such as one kind can be again
The accumulator of charging.Such as the accumulator of electrochemistry can be a kind of accumulator of lithium base, e.g. lithium-ion-battery.
In addition, in the sense of the present invention, attachment device can be regarded as such a nonconducting or preferably conductive
Element, i.e. the original paper is at least partially, preferably completely disposed at least one first leg and described at least one
Between second leg, and it is connected or is fixed on these legs with these legs.Therefore, the attachment device or multiple
Attachment device is mainly used for being fixed to one another for these respective legs.
Aforementioned current-collector can generate a kind of particularly stable accumulator, it can especially run functions reliably and efficiently.
For this purpose, the current-collector has at least one first leg and at least one second leg.In this case, described
One leg and the second leg can be set in parallel at least partly.In this case, first leg and one can be only set
Second leg or multiple first and second legs of setting.
In this case, at least one first leg and at least one second leg are at least partially through at least
One attachment device being arranged between first leg and second leg is connected to each other.Such as set multiple first
Leg, these first legs respectively with second leg in multiple second legs at least partially through it is at least one be arranged on it is corresponding
Attachment device between first leg and corresponding second leg is joined to one another.
The said program of current-collector can allow to design a kind of the second leg for having the first leg and with first leg being connected
And especially can counter-bending and therefore particularly stable leg profile or unit.It can obviously better be mended by this measure
Repaying those may be applied on accumulator or battery unit and for example be applied on current-collector in this case
Power.Which results in：Compared with some schemes being known from the state of the art, the accumulator for being equipped with aforementioned current-collector has bigger
Stability, and permissible accumulator is particularly securely run.Therefore, it can significantly be reduced by using aforementioned current-collector
Failure operation state or damage probability.
In addition, also allow will be described for the increased stability or increased bending resistance stiffness of either its leg of current-collector
Leg is arranged in apparent widened region compared with current-collector according to prior art or causes the leg with significantly larger
Length.Contact of the current-collector with electrode can be improved by this measure, preferably circulated, and therefore which results in electric current
The operation of accumulator is improved, also results in the stability for improving the contact between electrode and current-collector in addition.
In addition the cross-sectional area of leg can also significantly be expanded.By this measure, the company is being formed by conductive material
During connection device, the resistance of entire current-collector can be reduced, this additionally allows accumulator can be particularly effectively or with especially high
Power run.
In short, aforementioned current-collector can more steadily manufacture accumulator, and make the accumulation of energy in this case
Utensil has extra high efficiency.
In a kind of frame of scheme, at least one first leg and at least one second leg form a leg
It is right.Therefore in this scheme, always two legs connect into a leg pair by the attachment device.It in this case can be with
One leg pair of setting is preferably set up multiple legs pair.Therefore, in this scheme, current-collector can be particularly simply with leading to
The peripheral equipment of normal accumulator matches, and can be particularly simply integrated into aforementioned current-collector by this measure multiple existing
In some accumulators.It in this case, also can be by the leg to being called contact fork.
In the frame of another program, at least one first leg and at least one second leg can be by described
At least one attachment device U-shaped it is joined to one another., it can be achieved that the particularly stable connection of respective leg in this scheme,
Wherein, the matching with existing accumulator additionally can be particularly simply realized.It can be abundant particularly in this scheme
Utilize such case, i.e., in the case of for example there ought be multiple conventional accumulators in a kind of prismatic scheme, these electrodes
It is designed usually from diaphragm type, and self is overlapped, wherein, film end can be stretched out from accumulator shell respectively, be
Be be in electrical contact these film ends.The present current-collector can be fixed in these film ends, and this point is in this side
It can be particularly advantageous in case.In this case particularly it can be stated that the U-shape or institute's shape can be designed so
Into U profiles, i.e. U profiles are outwardly open, and therefore especially level land is sticked on accumulator for connection surface or attachment device.Pass through
This measure can obtain another advantage, i.e., can still approach to be fixed on connecing on the film band of the stretching of electrode well
Touch fork.
In the frame of another program, can the attachment device be designed with plate shape ground.Therefore in this scheme, the company
Connection device can connect at its fringe region with corresponding leg, and have the extension of plate shape between these legs.
In such case, regulation according to the invention, the construction of this plate shape can have special significance, i.e., described attachment device exists
There is small number in terms of its length and width.Such as attachment device can with diaphragm type design.In this scheme, accordingly
The king-sized region that leg either contacts fork can be connected to each other that this causes extra high stability or king-sized counter-bending
Property is possibly realized.In addition, can also particularly obviously increase the cross-sectional area on the leg in this scheme, arranged by this
Resistance can particularly effectively be reduced by applying, and therefore can particularly effectively improve the efficiency of accumulator.Only using one
The latter can be particularly advantageous during attachment device.
In the frame of another program, multiple attachment devices can be set.Can selectively it add in this scheme
Strong for example described leg pair, however wherein need material to be used but particularly few.Therefore, the collection is being manufactured in this scheme
Material cost can be especially low during electric appliance.In addition it is also possible to save weight, this is particularly when movably using for current-collector
For the accumulator of this current-collector it is either highly advantageous for being equipped with.In addition, provided in terms of suitable stability,
Particularly strengthened in the place of needs, and do not need to be strengthened in the region for not needing to strengthen.
In the frame of another scheme, at least one first leg and at least one second leg can by copper or
Person's aluminium is made.In this scheme, on the one hand, the cost for producing the current-collector is particularly advantageous, because being previously described for producing
Material be not excessively high in cost.In addition, particularly when the foregoing material of regulation is also used for electrode or for electrode
Current diverter（Stromableiter）When, it can specify that using a kind of unified material, by this measure, from collection
Be not in potential when electric appliance is transitioned into electrode or current diverter, this can allow accumulator particularly by regulation and
Reliably run.In addition, particularly previous materials can be easily worked, and processing cost is advantageous, and in this case
These materials have good electric conductivity, this can enable accumulator especially expeditiously run.
In the frame of another program, at least one first leg, at least one second leg and described at least one
A attachment device can be designed integrally.Processing method can be made simple for this scheme and cost advantages, this can make current-collector
Or be equipped with the accumulator of current-collector constructions cost it is particularly advantageous.
In the frame of another program, at least one first leg, at least one second leg are respectively provided with contact
End and insulated end portions, wherein, insulated end portions are that so bending is soft, i.e., the insulated end portions of the first leg and the second leg is exhausted
Acies portion can be placed in contact with.Therefore can reach in this scheme：The insulation of the insulated end portions of first leg and the second leg
End is set in which can both have spacing, can also be placed in contact with.The advantages of such can be obtained in this scheme, you can with
Simplify installment work accumulator or current-collector being installed on the stent particularly to insulate.This can be reached by following measures
It arrives, i.e., the two legs are made at least partly of can be bent, particularly elastic material.In addition, this can also be accomplished, do
Method is that the attachment device for fixing the first leg and the second leg is particularly not provided on insulated end portions.Increase in this scheme
Therefore big bending resistance stiffness can particularly set the region for having spacing with insulated end portions.
Other technical characteristics and advantage about current-collector according to the present invention please refer in detail to be related to according to this hair
Bright accumulator, attached drawing and some explanations of attached drawing description.
In addition, subject of the present invention is also a kind of accumulator, particularly a kind of lithium-ion-accumulator, it has at least one
A current-collector designed as described previously.
Such accumulator can have particularly stable and reliable current-collector.It, can be in this current-collector
Significantly more preferably compensate those power that may be applied on accumulator or battery unit.In addition this can allow that cable will be contacted
It is made to significantly bigger or compared with current-collector according to prior art, there is significantly larger length.It is arranged by this
Applying, which can be such that current-collector has with electrode, preferably contacts, this can cause accumulator preferably to run, and can also cause to have in addition
Better stability.In addition it is also possible to significantly increase the cross-sectional area on the leg or contact fork.It is arranged by this
The resistance for being reduced by entire current-collector is applied, this also additionally allows especially expeditiously running or with special for accumulator
High Power operation.
Such accumulator can be manufactured particularly stablely in a word, and in this case with extra high effect
Rate.
Such as can be prismatic battery by accumulator designs.In this scheme, compared with other types of battery
Compared with, can make cell body product minimize, therefore, when volume for can compare when just can produce more powerful accumulator or
The position that may be significantly smaller or structure space are just needed when power is identical.This is advantageous especially for mobile use.
In a kind of frame of scheme, at least one current-collector can be welded to the anode or cathode of accumulator
On.In this scheme, current-collector can realize particularly stable connection, and in such case with the anode or cathode
In manufacturing method can be made extremely simple and cost advantages.Therefore, in this scheme, accumulator can be especially safe and reliable
Ground is run.In this case, the so-called welding being welded on anode or cathode also includes welding in the sense of the present invention
To the wire guiding member being conductively connected with anode or cathode, for example it is particularly current diverter（Stromableiter）On weldering
It connects, because these components are respectively on the current potential identical with anode or cathode, and therefore leads in the sense of the present invention
Often these components are seen as and belong to corresponding electrode.
Other technical characteristics and advantage about accumulator according to the present invention please refer to related according to the present invention in detail
Current-collector, attached drawing and attached drawing description explanation.
Description of the drawings
By those figures show the further advantage of theme according to the present invention and some advantageous schemes, and under
These are described in the explanation in face.Wherein it should be noted that these attached drawings only have the property of description, and not recognize
To there is some form of limitation to the present invention.
These attached drawings are：
Fig. 1：For the schematic diagram of the structure of the accumulator of the present invention；
Fig. 2：According to the schematic diagram of the current-collector of the prior art；
Fig. 3：The schematic diagram of the current-collector according to Fig. 2 on accumulator；
Fig. 4：The schematic diagram of current-collector according to the invention；
Fig. 5：The schematic diagram of the current-collector according to Fig. 4 on accumulator.
Specific embodiment
A kind of the partly illustrative of accumulator 10 and the structure not being construed as limiting is shown in FIG. 1.This
In situation, a kind of lithium-ion accumulator is particularly according to accumulator described in Fig. 1 10, it has the battery unit of prismatic shape.
In the scheme according to Fig. 1, one kind is a kind of element of winding 12 to obtain the directly required element of energy, this around constituent element
In part, the copper film that is coated with anode material, the cathodic coating for being coated with cathode material and such as two plastic foils-they are used as being spaced
Device either diaphragm-be overlappingly configured or wind, and be driven plain.It is described in this case in order to be in electrical contact
Copper film and aluminium film are configured to slight misalignment in opposite direction along winding axis.In this way, the copper film is one narrow wherein
Side is stretched out, and aluminium film is stretched out in another narrow side.In this case, the film band 14 of the stretching so occurred for anode or
The electrical contact of person's cathode, as this point will be also illustrated later with particular reference to Fig. 3.In this case,
For the sake of apparent, the film band 14 of the stretching of pole is merely illustrated in figure.In a manner that technical staff understands, be each pole,
Namely housing 18 with side that film band 14 is opposite and with the opposite film band for being closely adjacent also provided with stretching
14, in order that also contacting these film bands.
It is referred to as NSD in addition, also having according to the accumulator 10 of Fig. 1（English：Nail Penetration Safety
Device（Nail penetrates safety device））Safety device 16.In addition, it also sets up to accommodate the element of winding 12 or use
In the container 18 for accommodating some elements of winding 12, the container can have electric insulation arrangement 20 on the outside, such as shrinkage hose or
Person says heat-shrink plastic's sleeve pipe.In the above-described container, electric insulation arrangement 22 is also provided at container bottom.In addition the container 18 is special
It is not equipped with the electrolyte of liquid.
In addition, in order to be in electrical contact, the accumulator 10 also have herein only shown in schematic diagram and in Fig. 4 and Fig. 5
The current-collector 240 of middle detailed description, as the current-collector will describe in detail later.The current-collector 240 is with using
It is electrically connected in the connection bolt 26 for mechanically and electrically contacting the accumulator 10.In addition, it also sets up for around constituent element
The seal 28 of part 12 and the seal 30 for current-collector.
In addition, the container 18 is covered above by a cover board 32 at least partly, particularly safely, in the lid
Between plate and current-collector 240 and particularly with connect bolt 26 between, circumferentially setting sealing device 34 and sealed insulation body
36.In addition, in order to which for example excessive pressure can be being given off from container 18 in the event of failure, safety plate is also set up in cover board 32
Split plate 38 in other words.In addition, accumulator 10 further includes film, such as OSD films 40, the film is embedded into cover board 32
In.Further, it is also possible to set cover board insulating film 42 on cover board 32, the cover board insulating film has some pits 44.In pit
42 inside and it is adjacent on cover board 32, particularly with connecting bolt 26 and also sets up a current potential plate 46 and be arranged on it
On upper plate 48.The upper plate and seal 50 are arranged on together on connecting plate 52.In addition, as it is seen from figure 1 that
Sample is provided with spacer insulator 54 in the lower section of connecting plate 52.In addition, also set up a plunger 56 being embedded into cover board 32.
In addition, current-collector 200 according to prior art are shown in FIG. 2.Such current-collector 200 includes two
Contact fork 202, the contact fork respectively include two legs 204.The contact fork with it is being arranged on top and therefore do not set
The join domain 206 put between leg 204 is connected, the join domain again with it is substantially vertical with the join domain 206
The platform 208 of setting is connected.The platform can be fixed on accumulator 10 by hole 210 around 26 ground of the connection bolt
On, as being shown in FIG. 3.About Fig. 3, identical with the accumulator 10 according to Fig. 1 or comparable structural portion
Part substantially makes to be presented with like reference characters, and saying for aforementioned Fig. 1 is please referred to accordingly, with respect to the detailed description of this respect
It is bright.
Current-collector 240 according to the present invention is shown in FIG. 4.Such current-collector 240 includes at least one the
One leg 242 and at least one second leg 244, wherein, at least one first leg 242 and at least one second leg 244
It is connected with each other and picks up at least partially through at least one attachment device 246 being arranged between the first leg 242 and the second leg 244
Come.According in this of Fig. 4 scheme, at least one first leg 242 and at least one second leg 244 form one
Leg pair, the leg is to being also called contact fork.In addition, at least one first leg 242 is logical at least one second leg 244
The attachment device 246 formed according to Fig. 4 plates is crossed to connect to U-shaped each other.In this case, described at least one first
Leg 242 and at least one second leg 244 and at least one attachment device 246 are integrally formed.In addition, it is described extremely
Few first leg 242 and at least one second leg 244 are made of copper or aluminium.It in this case, particularly can be with
The material is selected according to positioning, wherein, the current-collector 240 being connect with anode can be particularly made of copper completely, and with
The current-collector 240 of cathode connection can be particularly entirely made of aluminum.Just as can be seen from fig. 4, in this side
There are two legs pair for setting in case.
In addition, it is also seen that the current-collector 240 has such a join domain 248, i.e., this join domain can
To be connected with leg 242,244 or initially form the leg 242,244 from this join domain, in addition, it goes back and platform
250 are connected, and the platform is aligned substantially perpendicular to leg 242,244 ground.The platform 250 has for a kind of connection bolt
26 such as accommodate or set it is described connection bolt 26 centring pin 252.
The accumulator 10 for being equipped with the current-collector 240 according to Fig. 4 is simplifiedly shown very much in Figure 5.It is it can be seen that described
Connection bolt 26 or the centring pin 252, the centring pin are contacted with the platform 250 of current-collector 240.In addition tool is also shown
There is the leg pair of leg 242,244, they are fixed on the region 14 of stretching.In addition attachment device 246, the connection dress is also shown
It puts leg 242, connect to 244 U-shapeds.
In addition in Figure 5 it can further be seen that at least one first leg 242 and at least one second leg 244 divide
There is not contact end 254 and insulated end portions 256, wherein, the so soft bending of insulated end portions 256, i.e., described first leg 242
Insulated end portions 256 and the insulated end portions 256 of second leg 244 can be placed in contact with.It for example can be with by this measure
Make the installation of seal become easy.
In addition it can also be seen that since these legs are to the stability with bigger, thus these legs to can set with
The scheme of the prior art compare-go out as shown in Figure 3 as-length is significantly larger.This can significantly improve conduction
Characteristic.
Claims (10)
1. for the current-collector of electrochemical energy accumulator, there is at least one first leg（242）With at least one second leg（244）,
Wherein, at least one first leg（242）With at least one second leg（244）It is set at least partially through at least one
It puts at least one first leg（242）With at least one second leg（244）Between attachment device（246）Phase each other
It connects, which is characterized in that at least one first leg（242）With at least one second leg（244）It is respectively provided with
Contact end（254）And insulated end portions（256）, wherein, these insulated end portions（256）It is flexible so that first leg
（242）Insulated end portions（256）With the second leg（244）Insulated end portions（256）It is placed in contact with.
2. current-collector described in accordance with the claim 1, wherein, at least one first leg（242）With described at least one
Two legs（244）It is configured to leg pair.
3. according to the current-collector described in claims 1 or 2, wherein, at least one first leg（242）With it is described at least one
Second leg（244）Pass through at least one attachment device（246）It connects to U-shaped each other.
4. according to the current-collector described in claims 1 or 2, wherein, attachment device（246）Plate shape ground is formed.
5. according to the current-collector described in claims 1 or 2, wherein, multiple attachment devices are set（246）.
6. according to the current-collector described in claims 1 or 2, wherein, at least one first leg（242）With it is described at least one
Second leg（244）It is made of copper or aluminium.
7. according to the current-collector described in claims 1 or 2, wherein, at least one first leg（242）With it is described at least one
Second leg（244）And at least one attachment device（246）It integrally forms.
8. accumulator has according at least one current-collector described in any one of claim 1 to 7（240）.
9. according to accumulator according to any one of claims 8, wherein, at least one current-collector（240）It is welded on accumulator（10）
Anode or cathode on.
10. according to accumulator according to any one of claims 8, wherein, the accumulator is lithium-ion-accumulator.
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 CN103872338A (en) | 2014-06-18 |
| CN103872338B true CN103872338B (en) | 2018-06-08 |
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ID=50778150
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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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130319A (en) * | 2010-01-12 | 2011-07-20 | Sb锂摩托有限公司 | Recharcheable 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101049832B1 (en) * | 2009-06-04 | 2011-07-15 | 에스비리모티브 주식회사 | Secondary battery |
-
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 (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102130319A (en) * | 2010-01-12 | 2011-07-20 | Sb锂摩托有限公司 | Recharcheable 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 |
|---|---|
| DE102012222776A1 (en) | 2014-06-12 |
| CN103872338A (en) | 2014-06-18 |
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