WO2022199888A1 - Verfahren zum erzeugen eines elektrodenstapels und stapelvorrichtung - Google Patents
Verfahren zum erzeugen eines elektrodenstapels und stapelvorrichtung Download PDFInfo
- Publication number
- WO2022199888A1 WO2022199888A1 PCT/EP2022/025108 EP2022025108W WO2022199888A1 WO 2022199888 A1 WO2022199888 A1 WO 2022199888A1 EP 2022025108 W EP2022025108 W EP 2022025108W WO 2022199888 A1 WO2022199888 A1 WO 2022199888A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- electrode
- stacking
- electrode element
- alignment
- alignment element
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 claims description 17
- 239000004020 conductor Substances 0.000 description 7
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000875 corresponding effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012983 electrochemical energy storage Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/38—Delivering or advancing articles from machines; Advancing articles to or into piles by movable piling or advancing arms, frames, plates, or like members with which the articles are maintained in face contact
- B65H29/40—Members rotated about an axis perpendicular to direction of article movement, e.g. star-wheels formed by S-shaped members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
- B65H29/52—Stationary guides or smoothers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H31/00—Pile receivers
- B65H31/02—Pile receivers with stationary end support against which pile accumulates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H31/00—Pile receivers
- B65H31/04—Pile receivers with movable end support arranged to recede as pile accumulates
- B65H31/08—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another
- B65H31/10—Pile receivers with movable end support arranged to recede as pile accumulates the articles being piled one above another and applied at the top of the pile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H31/00—Pile receivers
- B65H31/34—Apparatus for squaring-up piled articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H31/00—Pile receivers
- B65H31/34—Apparatus for squaring-up piled articles
- B65H31/38—Apparatus for vibrating or knocking the pile during piling
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/42—Piling, depiling, handling piles
- B65H2301/421—Forming a pile
- B65H2301/4212—Forming a pile of articles substantially horizontal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/42—Piling, depiling, handling piles
- B65H2301/422—Handling piles, sets or stacks of articles
- B65H2301/4223—Pressing piles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2404/00—Parts for transporting or guiding the handled material
- B65H2404/70—Other elements in edge contact with handled material, e.g. registering, orientating, guiding devices
- B65H2404/74—Guiding means
- B65H2404/741—Guiding means movable in operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/111—Bottom
- B65H2405/1115—Bottom with surface inclined, e.g. in width-wise direction
- B65H2405/11151—Bottom with surface inclined, e.g. in width-wise direction with surface inclined upwardly in transport direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2405/00—Parts for holding the handled material
- B65H2405/10—Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked substantially horizontally
- B65H2405/11—Parts and details thereof
- B65H2405/114—Side, i.e. portion parallel to the feeding / delivering direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/18—Form of handled article or web
- B65H2701/182—Piled package
- B65H2701/1826—Arrangement of sheets
- B65H2701/18264—Pile of alternate articles of different properties, e.g. pile of working sheets with intermediate sheet between each working sheet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/19—Specific article or web
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/72—Fuel cell manufacture
-
- 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
Definitions
- the invention relates to a method for producing an electrode stack with flat electrode elements. At least a first electrode element and a second electrode element are provided. The electrode elements are introduced into a respective intermediate space, which is formed by stacking fingers of at least one stacking wheel rotating about an axis of rotation. Furthermore, the electrode elements are transported with the stacking wheel and removed from the respective intermediate space. The electrode elements are arranged at a stacking position and the electrode stack is created.
- the invention also relates to a corre sponding stacking device.
- Electrode elements for the production of electrochemical energy stores such as lithium-ion batteries, or energy converters, such as fuel cells, are usually stacked. Electrode elements are stacked in particular in the production of pouch cells, a widespread type of lithium-ion battery.
- the electrode elements are usually designed as a cathode, based, for example, on aluminum foil, and/or an anode, based, for example, on copper foil.
- the smallest unit of each lithium-ion cell consists of two electrodes and a separator that separates the electrodes from each other. In between is the ion-conductive electrolyte later after filling.
- the electrode elements are stacked in a repeating cycle of anode, separator, cathode, separator, and so on.
- the stacking step in production often represents the bottleneck for the production throughput. Accelerating the stack is therefore of great interest.
- WO 2020/212316 A1 describes a method for producing an electrode stack of anodes and cathodes for a lithium-ion battery of an electrically powered motor vehicle, in which the anodes and cathodes are conveyed into receptacles of a rotationally driven or rotationally drivable stacking wheel , and the anodes and cathodes received in the receptacles are conveyed to a stacking compartment by means of a rotation of the stacking wheel.
- the object of the invention is to create a method and a stacking device with which or in which an electrode stack with flat electrode elements is produced more precisely.
- an electrode stack with flat electrode elements in particular an electrochemical energy store or an energy converter, is produced.
- the following steps are carried out: a) providing a first electrode element; b) introducing the first electrode element into an intermediate space which is formed by stacking fingers, in particular between stacking fingers, of at least one stacking wheel rotating about an axis of rotation; c) transporting the first electrode element with the stacking wheel; d) removing the first electrode element from the gap; e) arranging the first electrode element at a stacking position; f) providing a second electrode element; g) introducing the second electrode element into a further intermediate space which is different from the intermediate space and is formed by stacking fingers, in particular between stacking fingers, of the stacking wheel; h) removing the second electrode element from the further intermediate space; and i) arranging the second electrode element at the stacking position and creating the electrode stack.
- At least the first electrode element and/or the second electrode element is moved into a lateral target position by at least one, in particular non-stacking wheel, in particular active, movable alignment element.
- the invention is based on the knowledge that the stacking accuracy can be increased by the movable alignment element.
- the movable alignment element allows the electrode elements to be aligned more precisely in the lateral direction, ie in particular in the axial direction with respect to the axis of rotation of the stacking wheel.
- An electrochemical energy store or an energy converter can be made more efficient as a result of the more precise stack formation.
- the lateral target position can be designed as an absolute target position, in which the lateral alignment of the electrode elements is carried out with respect to a reference point on the stacking device or externally to the stacking device.
- the lateral target position can also be designed as a relative target position, in which the electrode elements are the reference for the alignment of the electrode elements themselves. In particular, in the case of the relative desired position, it is then only provided that no electrode elements protrude laterally too far out of the electrode stack in the electrode stack that is produced.
- the alignment element can be movably attached to the stacking device with at least one, in particular bivalent, bearing.
- the alignment element can also be designed without bearings.
- the aligning element is preferably slightly flexible, so that the aligning element oscillates or vibrates, i.e. a particularly high-frequency, back-and-forth movement, although it is firmly connected to a stacking device at at least one point can be moved in the axial direction.
- the electrode elements can then be brought into the lateral sol position by the axial movement of the alignment element.
- the electrode elements are in particular stacked one on top of the other in alignment or congruently. This forms a precise electrode stack and increases the performance of the energy store or the energy converter.
- the electrode elements are aligned with an accuracy of at least +/-0.2 mm, preferably at least +/-0.1 mm, ie the deviation from the lateral target position should in particular be no more than 0.2 mm, preferably at most 0.1 mm.
- the alignment element is coupled to an actuator which actively moves the alignment element.
- the alignment element can, for example, be made of a metal, in particular an aluminum alloy.
- the first electrode element is in the form of a cathode and the second electrode element is in the form of an anode.
- a separator or a separating layer is arranged between the first electrode element and the second electrode element. This structure is preferably repeated as described above.
- the electrode elements can also already be in the form of a prefabricated cell which comprises a cathode, an anode and at least one separating layer. Then the first electrode element can be a first cell and the second electrode element can be a second cell.
- the stacking accuracy which is achieved by the movable alignment element, can be recorded, for example, by using camera systems of the stacking device.
- the alignment element can therefore align at least two electrode elements at the same time. As a result, the alignment can be carried out more quickly and the electrode stack can be produced more quickly.
- At least three electrode elements are aligned simultaneously by the alignment element. Furthermore, it is preferably provided that at least the first electrode element, in particular and/or the second electrode element, is pressed into the lateral desired position by the alignment element on an edge of the first electrode element running radially to the axis of rotation. In particular, the edge running radially to the axis of rotation is the short edge of the electrode element. By pressing the first electrode element on the short edge, the electrode element can be gently moved into the target position.
- the movement of at least the first electrode element, in particular and/or the second electrode element, into the lateral target position is carried out while the first electrode element is being transported in the intermediate space.
- This is advantageous because the alignment is already carried out before the respective electrode element is placed on the electrode stack. As a result, it is no longer necessary to subsequently process the electrode elements on the stack or the stack by pushing the respective electrode elements of the stack with slides, for example, and thereby aligning them.
- the first electrode element is additionally moved, in particular pressed, into the lateral target position by a further, in particular stacking wheel, movable, further alignment element, with the further alignment element acting against a direction of action of the alignment element.
- the lateral target position can be reached even more precisely.
- the alignment element moves the respective electrode element from a first side towards the center and the further alignment element moves the respective electrode element from a second side opposite the first side towards the center.
- the further alignment element is advantageous, since the respective electrode element can be pressed into the desired position from two sides.
- the further alignment element is configured the same as the alignment element, apart from the inversion of the sides. Furthermore, it is preferably provided that the alignment element, and in particular the further alignment element, is moved axially to the axis of rotation at a frequency of between 0.5 Hz and 10 Hz. As a result of this movement, the respective electrode element is preferably only contacted once during its stay in the stacking wheel for alignment. This one-time contact is advantageous since the surface or the edge of the respective electrode element, in particular the first electrode element and/or the second electrode element, is protected.
- the alignment element in particular and/or the further alignment element, vibrates axially to the axis of rotation at a frequency of more than 20 Hz.
- the first electrode element and/or the second electrode element is gently moved into the lateral target position, since the movement is carried out with little force.
- the low expenditure of force is possible because the respective electrode element is contacted several times with the vibrating alignment element. With each touch, the electrode element can be moved a small distance in the direction of the target position.
- the alignment element is moved by an unbalanced drive unit.
- the unbalanced drive unit is designed in particular as an unbalanced motor.
- the unbalance motor is a rotary machine with adjustable weights attached to the shaft, which generate circular mechanical vibrations during operation due to the centrifugal forces that occur.
- the frequency of the vibration of the unbalanced motor is determined in particular by the motor speed. With increasing frequency, the emitted vibration power increases. If the same mechanical vibration power is to be achieved with the engine running slowly as with a fast-running engine, the weights are increased in mass and/or diameter.
- the frequency of the vibration of the alignment can be set by the speed of the unbalanced drive unit. The speed in turn is preferably specified via the voltage of the unbalanced drive unit.
- the first electrode element, in particular and/or the second electrode element is contacted by the alignment element only in a partial area of the edge of the respective electrode element running radially to the axis of rotation. This is advantageous because the first electrode element and/or the second electrode element can be moved more gently as a result.
- the invention also relates to a stacking device.
- the stacking device is designed to produce an electrode stack with flat electrode elements and includes the following:
- a supply unit which is designed to supply an electrode element
- At least one stacking wheel which has an axis of rotation and a plurality of stacking fingers arranged radially to the axis of rotation, with a plurality of gaps being formed by the stacking fingers, which are each designed to accommodate at least one electrode element for transport;
- a stacking position which is designed for the arrangement of the electrode stack.
- the stacking device has an, in particular active, movable alignment element, which is designed to attach the electrode elements or the first electrode element and/or the second electrode element, in particular during transport through the stacking wheel to move a lateral target position.
- the stacking wheel preferably has eight to thirty, in particular ten to twenty, stacking fingers.
- the stacking fingers are distributed in particular over the circumference of the stacking wheel. Provision is preferably made for the alignment element to be arranged at a distance from the stacking wheel in the axial direction with respect to the axis of rotation. As a result of the axially spaced arrangement, the first electrode element and/or the second electrode element can be reliably moved by the alignment element even when the stacking wheel rotates quickly.
- the alignment element is preferably fastened only on one fastening side of the alignment element.
- the alignment element is preferably attached to the stacking device on only one side. Due to the one-sided attachment, the alignment element requires little maintenance and is more reliable.
- the stacking device has an, in particular active, movable further alignment element, which is arranged on the other side of the axis of rotation with respect to a center of the axis of rotation or which is arranged on the other side of the axis of cut with respect to a radial cutting axis of the stacking wheel is.
- the alignment elements are mirror-inverted.
- the first electrode element and/or the second electrode element can be moved more precisely into the lateral desired position by the alignment element and the further alignment element. Due to the additional further alignment element, the respective electrode element can now be pressed from two different sides.
- the further alignment element is preferably constructed in the same way as the alignment element, except for the inverted configuration.
- the alignment element and/or the further alignment element has a curvature running essentially in the direction of rotation of the stacking wheel.
- the aligning element is curved in such a way that it is curved towards the direction of rotation towards the central axis of the stacking wheel.
- the distance from the central axis of the stacking wheel preferably corresponds to the desired lateral position. Due to the curvature, the respective electrode element can be moved further and further in the direction of the lateral target position as the rotation of the stacking wheel progresses.
- the alignment element and the further alignment element preferably form a two-walled semi-funnel, with the two walls formed by the alignment elements being formed in particular opposite one another, so that the respective electrode elements can be contacted on two opposite sides, to be moved to the lateral set position.
- the stacking device has a movable additional alignment element, which is arranged after the alignment element with respect to a direction of rotation of the stacking wheel.
- the additional alignment element touches the electrode element for alignment, preferably on the same side as the alignment element, but later in time.
- the additional alignment element can take over the fine alignment work, while the alignment element takes over the rough alignment work.
- the additional alignment element can be operated with a smaller amplitude than the alignment element.
- the stacking device has an entrained stack base for receiving the electrode stack.
- FIG. 1 shows a schematic representation of an exemplary embodiment of a stacking device according to the invention with a stacking wheel and a movable alignment element for aligning electrode elements in a desired lateral position;
- Fig. 2 is a further schematic representation of the stacking device with the
- Alignment element and another alignment element each having a curvature
- Fig. 3 is a schematic representation of a further embodiment of the
- Fig. 4 is a schematic representation of a further embodiment of the
- Fig. 5 is a schematic representation of a further embodiment of the
- Fig. 6 is a schematic side view of another embodiment of the
- Fig. 1 and Fig. 2 schematically show an embodiment of a stacking device 1.
- the stacking device 1 has a stacking wheel 2 with a plurality of stacking fingers 3 .
- the stacking wheel 2 rotates about an axis of rotation 4.
- the stacking wheel 2 rotates clockwise when viewed in the image plane of FIG.
- the rotational speed is preferably at least 20 revolutions per minute.
- the stacking device 1 is formed with further stacking wheels 2, four in number according to FIG. 1 or FIG.
- the other stacking wheels 2 are also arranged on the axis of rotation 4 .
- the other stacking wheels 2 are preferably designed analogously to the stacking wheel 2 .
- the description is continued below using only one stacking wheel 2 .
- the features of a stacking wheel 2 are also valid for the other stacking wheels 2.
- the stacking fingers 3 are according to the embodiment, in particular counterclockwise clockwise, curved.
- the thickness of the respective stacking finger 3 preferably decreases with increasing distance from the axis of rotation 4 .
- a space 5 is formed between the stacking fingers 3 in each case.
- the intermediate space 5 is designed to accommodate a flat first electrode element 6.
- a further gap 7 is formed between two in particular adjacent stacking fingers 3 of the gap 5 .
- the further space 7 is formed to accommodate a flat second electrode element 8.
- the stacking fingers 3 are distributed over the circumference of the stacking wheel 2 .
- the first electrode element 6 and/or the second electrode element 8 can be designed, for example, as a cathode, anode or separator or intermediate layer. It is also possible that the first electrode element 6 and/or the second electrode element 8 is designed as a combined element, for example as a combination of cathode with separator, anode with separator. In addition or as an alternative, it can also be the case that the first electrode element 6 and/or the second electrode element 8 is designed as a cell which comprises a cathode, an anode and at least one separator.
- the electric deniata 6, 7 and the first electrode element 6 and / or the second electrode element 8 are transported by the stacking wheel 2.
- the transport ends in particular when the electrode elements 6 , 7 are removed from the stacking wheel, preferably one after the other, for example by means of a stripping element 9 , and are placed on an electrode stack 10 .
- the electrode stack 10 is thus produced in particular by the electrode elements 6 , 7 deposited or transported by the stacking wheel 2 . Furthermore, the electrode stack 10 is produced at a stacking position 50 .
- the electrode elements 6 , 7 are supplied to the stacking device 1 in particular by means of a supply unit which is designed as a supply device 11 .
- the first electrode element 6 and/or the second electrode element 8 can also each have at least one cell conductor 12 .
- the cell conductor 12 is used for electrically conductive contacting.
- the cell conductor 12 can be different than shown in the figures denelements 6, 8 formed from only one side of the respective electrode.
- the stacking device 1 also has an alignment element 13 .
- the alignment element 13 is designed to be movable.
- the alignment element 13 moves the first electrode element 6 and/or the second electrode element 8 into a lateral target position 14 .
- the lateral target position 14 relates to the lateral alignment of the electrode elements 6, 8, i.e. the alignment axially with respect to the axis of rotation 4.
- the lateral stacking accuracy of the electrode stack 10 can be increased.
- the alignment element 13 is designed to be active and is connected to a drive unit, in particular an unbalanced drive unit 15 .
- the unbalanced drive unit 15 or the unbalanced motor is designed to cause the alignment element 13 to oscillate.
- the alignment element 13 is preferably vibrated by the unbalance drive unit 15 with at least 20 Hz.
- the electrode elements 6, 8 are moved into the lateral desired position 14 by the vibration.
- the alignment element 13 presses for the movement of the respective electrode element 6, 8 in the exemplary embodiment on a short side edge 16 of the respective electrode element 6, 8.
- the pressing preferably takes place at high frequency and with several low-force contacts or touches.
- the alignment element 13 is preferably designed in such a way that the short side edge 16 of the respective electrode element 6, 8 is touched only in a partial area 17 of the short side edge.
- the partial area 17 lies in particular outside the area of the short edge in which the cell conductor 12 is formed. Due to the restriction of the alignment element 13 to the partial area 13, the respective electrode element 6, 8 can be touched by the alignment element 13 without the cell conductor 12 being loaded.
- the aligning element 13 can, for example, be designed to be narrower than the entire short side edge or have a recess.
- the alignment element 13 has a curvature 18 .
- the curvature 18 runs essentially in the direction of rotation of the stacking wheel 2 or in the direction of a vertical axis 19 of the electrode stack produced.
- the result of the curvature is that the lateral delimitation, which is created by the alignment element, comes closer to the respective electrode element 6, 7 as the transport of the respective electrode element 6, 7 progresses.
- the alignment element 13 is closer to a center 20 of the axis of rotation 4 as the transport of the respective electrode element 6, 8 progresses.
- the stacking device 1 also has a further alignment element 20 .
- the further alignment element 20 is designed like the alignment element 13, but is mirror-inverted.
- the further alignment element 20 is arranged axially on the other side of the stacking wheel 2 with respect to the axis of rotation 4 .
- the aligning element 13 and the further aligning element 20 thus form a semi-funnel, as it were.
- the further alignment element 20 can have a separate drive unit, which is designed like the imbalance drive unit 15, for example.
- a direction of action 21 of the aligning element 13 and a further direction of action 22 of the further aligning element is thus directed inward, ie towards the center 19 of the axis of rotation.
- the alignment element 13 is preferably fixed on one side, ie only on a fastening side 23 of the alignment element 13 .
- the attachment side 23 is in particular at a point at which the alignment element 13 has the smallest deflection.
- the fastening side 23 is therefore preferably as close as possible to the stripping element 9, the respective electrode element 6, 8 is preferably already in the lateral desired position 14 when stripping out and therefore no or no major deflection of the alignment element 13 is necessary in order to move the respective electrode element 6, 8 to align.
- the alignment element 13 is arranged at a distance 24 from the stacking wheel 2 in the axial direction with respect to the axis of rotation 4 .
- the stacking device 1 is designed analogously to the exemplary embodiment according to FIGS.
- the one low-frequency drive unit 25 moves the alignment element 13 preferably at a frequency of 0.5 Hz and 10 Hz in the direction of action 21 and back. Due to the movement in the direction of effect 21, the respective electrode element 6, 8 is touched or pressed by means of the alignment element 13 on the short side edge 16, preferably until it is in the lateral desired position 14.
- the alignment element 13 also has a bevel 26 in the edge pointing radially away from the drive unit, in particular the low-frequency drive unit 25 . Due to the bevel 26, the respective electrode element 6, 8, in particular the respective cell conductor 12, can be treated more gently.
- the stacking device 1 preferably also has a stacking base 27 carried along, on which the respective electrode elements 6, 8 are placed or stacked.
- the electrode stack 10 is produced on the bottom of the stack.
- the stack base 27 is removed from the axis of rotation 4 in the radial direction, so that further electrode elements can be stacked.
- the stack base 27 carried along is advantageous since all the electrode elements 6, 8 can be placed onto the electrode stack 10 from a small height and cannot be thrown down from different heights. In particular, at the start of the stacking process, the discharge height or storage height for the electric would be denetti 6, 8 without the entrained stacking base 27 high.
- the further alignment element 20 is also provided in particular. According to the exemplary embodiment, the further alignment element 20 is formed as a mirror image of the alignment element 13 .
- the two alignment elements 13, 20 preferably move synchronously, that is to say simultaneously to the center 19 and back again.
- the respective electrode element 6, 8 is thus simultaneously touched on one side and on a side opposite to the side. In other words, the respective electrode element 6, 8 is touched simultaneously on both short side edges.
- the further alignment element 20 is preferably moved by its own low-frequency drive unit 25, which cannot be seen in the figures.
- the simultaneous contact by the alignment elements 13, 20 takes place correspondingly on the long sides of the electrode elements 6, 8.
- the aligning element 13 has a bearing 28 having two values.
- the axis of rotation of the bearing 28 is preferably rotated by 90° to the axis of rotation 4 .
- the alignment element 13 is preferably designed with a narrow web 29 and a wide main surface 30 .
- the narrow web 29 connects the wide main surface 30 to the bearing 28.
- One advantage of the narrow web is that the respective cell conductor 12 is not touched or at least only slightly touched and the alignment in the partial area 17 is still on the electrode stack 10 or shortly before it is reached of the electrode stack 10 can be aligned.
- FIG. 5 and 6 schematically show a further exemplary embodiment of the stacking device 1.
- the stacking device 1 is designed analogously to FIGS. 3 and 4.
- FIG. 5 and 6 schematically show a further exemplary embodiment of the stacking device 1.
- the stacking device 1 is designed analogously to FIGS. 3 and 4.
- FIG. 5 and 6 schematically show a further exemplary embodiment of the stacking device 1.
- the stacking device 1 is designed analogously to FIGS. 3 and 4.
- the stacking device has a movable additional alignment element 31 .
- the additional alignment element 31 is arranged on the same side of the stacking wheel 2 as the alignment element 13, except that the additional alignment element 31 is closer to the stack base 27 than the alignment element 13.
- the additional alignment element preferably takes the position of the narrow stay 29 from FIGS. 3 and 4 a, while the Ausrichtele element 13 occupies only the position of the broad main surface 30 according to this embodiment. This is advantageous because the alignment element 13 and the additional alignment element 31 can now be operated at a different frequency.
- the alignment element 13 can be operated at a low frequency, while the additional alignment element 31 is operated at a high frequency.
- the additional alignment element 31 can be operated with a corresponding frequency, for example via a high-frequency drive unit 32, so that it vibrates.
- the stacking device 1 preferably also has a further additional alignment element (not shown in the figures) below the further alignment element 20 and designed to be a mirror image of the additional alignment element 31 .
- the stacking base 27 has an inclined position 33, the stacking base 27 is rotated counterclockwise by approximately 40° in the plane of the drawing.
- This is advantageous because a gravity a passive longitudinal alignment of the electrode elements 6, 8 is vorgenom men.
- the longitudinal alignment takes place on a long side edge of the respective electrode element 6 , 8 , in contrast to the lateral alignment, which relates in particular to a transverse alignment on the short side edge 16 .
- the passive longitudinal alignment can be carried out without power, in particular without motor power, or the moving elements.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Secondary Cells (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202280030536.0A CN117203141A (zh) | 2021-03-24 | 2022-03-17 | 用于产生电极堆叠的方法和堆叠装置 |
KR1020237036443A KR20230162954A (ko) | 2021-03-24 | 2022-03-17 | 전극 스택의 제조 방법 및 적층 장치 |
US18/552,112 US20240166461A1 (en) | 2021-03-24 | 2022-03-17 | Method for producing an electrode stack, and stacking device |
EP22716153.6A EP4313818A1 (de) | 2021-03-24 | 2022-03-17 | Verfahren zum erzeugen eines elektrodenstapels und stapelvorrichtung |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102021001544.4 | 2021-03-24 | ||
DE102021001544.4A DE102021001544A1 (de) | 2021-03-24 | 2021-03-24 | Verfahren zum Erzeugen eines Elektrodenstapels und Stapelvorrichtung |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022199888A1 true WO2022199888A1 (de) | 2022-09-29 |
Family
ID=81307326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2022/025108 WO2022199888A1 (de) | 2021-03-24 | 2022-03-17 | Verfahren zum erzeugen eines elektrodenstapels und stapelvorrichtung |
Country Status (6)
Country | Link |
---|---|
US (1) | US20240166461A1 (de) |
EP (1) | EP4313818A1 (de) |
KR (1) | KR20230162954A (de) |
CN (1) | CN117203141A (de) |
DE (1) | DE102021001544A1 (de) |
WO (1) | WO2022199888A1 (de) |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6190963A (ja) * | 1984-10-08 | 1986-05-09 | Toshiba Corp | 紙葉類の集積装置 |
JPS6392568A (ja) * | 1986-10-03 | 1988-04-23 | Nec Corp | 紙葉類揃え装置 |
JPH03264458A (ja) * | 1990-03-14 | 1991-11-25 | Nec Corp | 現金処理機の紙幣集積装置 |
JPH09194081A (ja) * | 1995-06-01 | 1997-07-29 | Omron Corp | 媒体集積装置および媒体処理装置 |
WO2000024662A1 (en) * | 1998-10-23 | 2000-05-04 | De La Rue International Limited | Sheet stacking apparatus |
EP2623449A1 (de) * | 2011-08-19 | 2013-08-07 | GRG Banking Equipment Co., Ltd. | Vorrichtung zur stapelung und führung eines bahnenförmigen mediums sowie darauf basierendes steuersystem und -verfahren |
WO2020212316A1 (de) | 2019-04-15 | 2020-10-22 | Volkswagen Ag | Verfahren und vorrichtung zur herstellung eines elektrodenstapels |
-
2021
- 2021-03-24 DE DE102021001544.4A patent/DE102021001544A1/de not_active Withdrawn
-
2022
- 2022-03-17 WO PCT/EP2022/025108 patent/WO2022199888A1/de active Application Filing
- 2022-03-17 EP EP22716153.6A patent/EP4313818A1/de active Pending
- 2022-03-17 US US18/552,112 patent/US20240166461A1/en active Pending
- 2022-03-17 KR KR1020237036443A patent/KR20230162954A/ko unknown
- 2022-03-17 CN CN202280030536.0A patent/CN117203141A/zh active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6190963A (ja) * | 1984-10-08 | 1986-05-09 | Toshiba Corp | 紙葉類の集積装置 |
JPS6392568A (ja) * | 1986-10-03 | 1988-04-23 | Nec Corp | 紙葉類揃え装置 |
JPH03264458A (ja) * | 1990-03-14 | 1991-11-25 | Nec Corp | 現金処理機の紙幣集積装置 |
JPH09194081A (ja) * | 1995-06-01 | 1997-07-29 | Omron Corp | 媒体集積装置および媒体処理装置 |
WO2000024662A1 (en) * | 1998-10-23 | 2000-05-04 | De La Rue International Limited | Sheet stacking apparatus |
EP2623449A1 (de) * | 2011-08-19 | 2013-08-07 | GRG Banking Equipment Co., Ltd. | Vorrichtung zur stapelung und führung eines bahnenförmigen mediums sowie darauf basierendes steuersystem und -verfahren |
WO2020212316A1 (de) | 2019-04-15 | 2020-10-22 | Volkswagen Ag | Verfahren und vorrichtung zur herstellung eines elektrodenstapels |
Also Published As
Publication number | Publication date |
---|---|
KR20230162954A (ko) | 2023-11-29 |
US20240166461A1 (en) | 2024-05-23 |
EP4313818A1 (de) | 2024-02-07 |
CN117203141A (zh) | 2023-12-08 |
DE102021001544A1 (de) | 2022-09-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2020212316A1 (de) | Verfahren und vorrichtung zur herstellung eines elektrodenstapels | |
DE3635806C2 (de) | ||
EP3759760B1 (de) | Vorrichtung und verfahren zum herstellen eines zellstapels | |
DE3914838A1 (de) | Ionen-zyklotron-resonanz-spektrometer | |
EP3456879A1 (de) | Bodenverdichtungsvorrichtung | |
EP4320061A1 (de) | Elektrodenstapelrad mit elektrodenklemmelement, entsprechende elektrodenstapelvorrichtung, und verfahren zum erzeugen eines elektrodenstapels | |
EP4152452B1 (de) | Positioniervorrichtung, stapelvorrichtung und stapelverfahren für wiederholkomponenten eines zellstapels für batterie- oder brennstoffzellen | |
DE102021207342A1 (de) | Zellstapelanlage und Zellstapelvorrichtung für Segmente von Energiezellen und Teilvorrichtung/Teilverfahren einer oder in einer Zellstapelanlage | |
EP3844866B1 (de) | Ultraschallaktor | |
EP4313818A1 (de) | Verfahren zum erzeugen eines elektrodenstapels und stapelvorrichtung | |
WO2022199885A1 (de) | Verfahren und vorrichtung zum herstellen eines elektrodenstapels | |
DE3539205C2 (de) | ||
EP3625837A1 (de) | Verfahren zum anordnen eines kontaktelements, kontaktelement sowie batteriestapel | |
DE69821247T2 (de) | Verfahren zum Verdichten von Formsand | |
DE2252420C3 (de) | Behälter für fließfähiges Material | |
WO2023285277A2 (de) | Vereinzelungsvorrichtung zum schneiden und vereinzeln von segmenten für energiezellen von einer zugeführten endlosbahn | |
WO2022214222A1 (de) | Verfahren und vorrichtung zum bilden eines stapels von flächigen elementen für einen energiespeicher oder eine brennstoffzelle | |
WO2022214224A1 (de) | Verfahren und vorrichtung zur stapelung von flächigen gegenständen | |
WO2022214221A1 (de) | Verfahren und vorrichtung zum bilden eines stapels von flächigen elementen für einen energiespeicher oder eine brennstoffzelle | |
DE102017216149A1 (de) | Verfahren und Vorrichtung zur Herstellung eines Elektrodenstapels für eine Batteriezelle | |
EP3109928B1 (de) | Verfahren zum herstellen einer elektrode insbesondere für elektrochemische energiespeicher, sowie eine elektrode und einen elektrochemischen energiespeicher | |
DE102021001545A1 (de) | Stapelrad und Vorrichtung zur Stapelung von flächigen Gegenständen | |
WO2023161062A1 (de) | Prüfvorrichtung und verfahren zum prüfen von segmenten für die energiezellen produzierende industrie | |
DE2910698A1 (de) | Schwingmotor | |
EP4320062A1 (de) | Vorrichtung zur stapelung von flächigen gegenständen |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 22716153 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 18552112 Country of ref document: US |
|
ENP | Entry into the national phase |
Ref document number: 20237036443 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 202280030536.0 Country of ref document: CN Ref document number: 1020237036443 Country of ref document: KR Ref document number: 2022716153 Country of ref document: EP |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
ENP | Entry into the national phase |
Ref document number: 2022716153 Country of ref document: EP Effective date: 20231024 |