Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
  • H01M50/50—Current conducting connections for cells or batteries
  • H01M50/543—Terminals
  • H01M50/562—Terminals characterised by the material
• • 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
  • H01M50/116—Primary casings; Jackets or wrappings characterised by the material
• • 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
  • H01M50/503—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the shape of the interconnectors
• • 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
  • H01M50/543—Terminals
  • H01M50/552—Terminals characterised by their shape
  • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
  • H01M50/557—Plate-shaped terminals
• • 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
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/49002—Electrical device making
  • Y10T29/49108—Electric battery cell making

Definitions

• the subject matter of the present invention is a method for connecting cell conductors according to claim 1 and a system having a first and a second cell, which are connected to one another via a first and a second cell arrester, according to the preamble of claim 10.
• Fuel cells connected together in series or series are connected together.
• batteries battery cells
• the cell arresters are often foil arresters, which
• Ultrasonic welding machine a mostly fixed anvil, a movable sonotrode and a controller for performing the ultrasonic welding process and for controlling the
• the height of such systems comprising at least a first and a second cell is of crucial importance in order, among other things, to be able to increase the power density of the battery.
• Object of the present invention is to provide a method which does not have the aforementioned disadvantages and a lower height of a system of a first and a second cell, each with a cell arrester
• the object is achieved by a method according to the features of claim 1 and by a system according to the features of claim 10.
• the system preferably produced by the method of a first cell having a first cell arrester emerging at an exit point and a second cell having a a second cell arrester emerging from an exit point, wherein the first and the second cell arrester are connected to each other along a respective end section, which is defined by an upper and a lower border, and the end section is in each case connected to a region of the respective cell block facing away from the exit point.
• conductor wherein the lower limit of the exit point is closer than the upper limit, can achieve at least two ⁇ fold bending of the first and second Zellableiters a lower height and reaches this.
• the angling is on the one hand in the area of
• first and second cells are arranged such that the first and the second cell conductors extend along or in the direction of a first axis and are spaced apart from one another.
• Zellableiter along the second axis considered positioned between the first and second components can also be made such that the first and second cell is moved into a connecting device. Subsequently, the first cell arrester is pressed by means of the first component in the direction of the second cell arrester. That is, the first component of the
• Joining device is not only responsible for later establishing the connection, but also has a shaping task for positioning the first cell arrester.
• the second cell arrester is moved in the direction of the first cell arrester by means of movement of the second component opposite to the first cell arrester
• Cell in the direction of the second component is the partially stuck between the second component and the second cell, protruding from the cell part of the Zellabieiters also pressed.
• the active pressing by means of the second component and the moving of the first and second cell (or even passive pressing) in the direction of the second component can take place simultaneously.
• the first and second components are now moving
• this bend can also be understood as meaning a slightly curved bend but also a change in direction of the cell conductor in relation to the part of the cell conductor arranged in the cell.
• the angling is due to the fact that the cell arrester between the respective cell and the respective pressing component is clamped, is held in the exit point as a fulcrum and is therefore forced into a rotational movement. It must therefore be ensured that the first and second components or the first and second cells do not move so fast that it leads to a demolition of the first or second cell.
• second cell arrester comes in the region of the exit point. This can advantageously be avoided by using a flat cell arrester. After the first and second components have fed the first and second cell arrester to each other, it comes to a
• connection is advantageously a material connection, wherein the end portions between the first and second components with an energy
• connection device in particular the first and second components, serves for positioning the first and second cell arresters, i. H. for stacking the cell arrester, and at the same time for the production of
• first component is designed to be movable and either the second component is likewise designed to be movable and / or the first and second cells can be moved in the direction of the second component.
• the first component moves at a speed Vi in the y-direction.
• the second component with the
• the first and second cells can also be moved in the y direction at a speed of 0.5 x Vi. This would lead to a relative velocity between the cells and the first component of 0.5 V in the y direction and the second component of 0.5 V x in the negative y-direction. Since the first and the second axis extend in different directions, the first and the second component are supplied with a lateral component viewed in the direction of the cell arrester on the Zellableiter and so long traversed and then pressed until it is a connection between the first and second second cell arrester is coming. Thus, it is no longer necessary to position the anvil between battery and Zellabieiter. However, the first and second cell also have a function, as they hold the cell arrester and thus the fulcrum or rotation point to the Abwinkein the Zellableiters in
• the second axis extends in a horizontal direction or has a horizontal component.
• connection is a cohesive connection.
• Cohesive connection can, for example, by
• the connecting device is an ultrasonic welding device, wherein the first
• Component comprises a sonotrode and the second component comprises an anvil, between which the entire end portion of the respective first and second cell arrester can be positioned.
• the lower limit forms the lower edge of the first or second component.
• Bending aid prior to connecting the first and second cell arresters between them Bending aid positioned prior to connecting the first and second cell arresters between them Bending aid positioned.
• the bending aid serves one
• the bending aid may for example be bar-shaped or T-shaped.
• Zellableiters subsequently refolded along the lower limit. This allows a further reduction of the height can be achieved.
• the first and second cell arrester are also still covered with a lid, which on the one hand can have a protective function and on the other hand an additional task reducing the height.
• FIGS. la-i a schematic example
• Fig. 2 shows an embodiment of a system with more than two cells.
• first cell 1 a shows a first cell 1, which is a battery cell, with a cell arrester 2 designed as a metallic foil conductor.
• the cell arrester 2 emerges from the first cell 1 at the exit point 3.
• the upper end of the cell arrester 2, viewed in the x-direction, is the end section 4, which is defined by the upper limit 40 and the upper limit lower limit 41 is defined. In this case, the lower limit 41 is closer to the exit point 3.
• a second cell 5 is shown, which also has a
• Battery cell is. This likewise comprises a second cell arrester 6, which emerges from the second cell 5 at an exit point 7.
• the end section 8 has an upper end 80 and a lower end 81 symmetrical to the end section 4.
• batteries for example, flat cells in aluminum composite foils (Pouche cells) with flat conductors (TABS) made of aluminum and optionally nickel-plated copper can be used.
• batteries such as lithium ions, NiCd, NiMH, lead, nickel / zinc, zinc / air, lithium / air, aluminum batteries, but also supercaps and fuel cells can be used.
• the first cell conductor 2 and the second cell conductor 6 extend along a first axis, which is parallel to the x-axis. In addition, they are along a second axis, which is defined by the y-axis, from each other
• connection device 10 On the left side of the first cell arrester 2 is a first component 11 of a connection device 10
• the illustrated connection device is an ultrasonic welding device.
• the first component 11 comprises a sonotrode 110 which, viewed in the x direction, is located at the lower edge of the first component 11.
• an anvil 120 On the same height considered in the x-direction is an anvil 120, which is associated with the second component 12. It can be seen that the sonotrode 110 and the anvil 120 far below the lower limit 41 and 81 of the
• FIG. 1b a positioning aid 9 has been introduced between the first cell arrester 2 and the second cell arrester 6.
• This is designed T-shaped, wherein the bars 90 and 90 'rest on the top of the first cell 1 and the second cell 5 and a center bar 91 extends in the x direction.
• the first component 11 and the second component 12 have been moved closer to the first and second cell conductors and now touch each of them. Subsequently, the first component 11 and the second component 12, viewed in the y direction, are moved closer to one another. This is shown in Fig. Lc.
• the first cell conductor 2 and the second cell conductor 6 are angled in the region of the respective exit point.
• the angling is provided with the reference numeral 30 for the first cell arrester 2 and the reference numeral 70 for the second cell arrester 6.
• Angling occurs because the lower edge of the first or second component is moved without a stroke in the x-direction along the y-direction and the cell conductor 2 or 6 only by bending in the region of the exit point its shape between the end portion and the exit point can maintain.
• the shaping of the bend is supported by the bending aid 9.
• the bending aid 9 serves in particular a desired geometric shape of the curved bend 30 or. 70th
• Biege Anlagen 9 was removed, for example, by pulling perpendicular to the plane of the figure. It can be clearly seen that at the lower limit of the end section 4 or 8, a further bend 42 or 82, in addition to the bend 30 or 70 is present.
• the first component 11 and the second component 12 are moved even closer to each other until the two respective end portions of the first and second cell arrester rest on each other. As soon as these rest on one another, energy is applied to the sonotrode 110 and, due to mechanical friction, a cohesive connection occurs between the first and second cell arrester.
• the system 100 produced by the method described above is shown in FIG.
• the system 100 comprises the first cell 1 and the second cell 5 as well as the first cell arrester 2 and the second cell arrester 6, the first cell arrester 2 having a first bend 30 and a second bend 42.
• the second cell arrester 6 has a first bend 70 and a second bend 82.
• the end sections 4 and 8, which in Figs. la-e visible were joined to a common link 48.
• connection 48 can be bent by a further folding 49.
• the Umfaltung49 here is a rotational movement in the clockwise direction indicated by the x-axis in the direction of the y-axis.
• Another alternative for reducing the overall height can be done by a lid 101, which presses on the connection 48 and thus further pushes down the entire between the exit points lying construction of the first and second Zellableiters 2 and 6, respectively.
• FIGS. lh and Ii can be combined with each other, d. h., It can first be made a refolding 49 and only then the interconnected
• Method is also suitable to connect more than just a first and a second cell, which form a system 100 with each other.
• system 100 has left and right neighbors 100 'and 100 ", respectively, system 100' and system 100" not being complete
• the cells can both serially and in parallel with each other
• Calculation rules for voltage sources can be set to a desired capacity or voltage.
• the number of cells serially and / or parallel connected in a system can be between two and a hundred or thousands of cells.
• a system with, for example, several thousand cells interconnected in parallel is relevant, inter alia, for stationary use.

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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)

Applications Claiming Priority (2)

Publications (1)

Family

ID=43530432

Family Applications (1)

Country Status (7)

Families Citing this family (3)

Family Cites Families (14)

• 2009
  • 2009-12-18 DE DE102009058883.3A patent/DE102009058883B4/de active Active
• 2010
  • 2010-11-17 CN CN201080064210.7A patent/CN102754244B/zh active Active
  • 2010-11-17 US US13/516,788 patent/US8932745B2/en active Active
  • 2010-11-17 EP EP10787713A patent/EP2514006A1/de not_active Withdrawn
  • 2010-11-17 JP JP2012543565A patent/JP5686816B2/ja active Active
  • 2010-11-17 WO PCT/EP2010/067693 patent/WO2011072974A1/de active Application Filing
  • 2010-11-17 KR KR1020127018756A patent/KR101835542B1/ko not_active Application Discontinuation

Non-Patent Citations (1)

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