EP2449611A1 - Procédé de fabrication d'un ensemble batterie - Google Patents

Procédé de fabrication d'un ensemble batterie

Info

Publication number
EP2449611A1
EP2449611A1 EP10722636A EP10722636A EP2449611A1 EP 2449611 A1 EP2449611 A1 EP 2449611A1 EP 10722636 A EP10722636 A EP 10722636A EP 10722636 A EP10722636 A EP 10722636A EP 2449611 A1 EP2449611 A1 EP 2449611A1
Authority
EP
European Patent Office
Prior art keywords
electrochemical cell
parts
frame
seam
electrochemical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP10722636A
Other languages
German (de)
English (en)
Inventor
Jens Meintschel
Claus-Rupert Hohenthanner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Li Tec Battery GmbH
Original Assignee
Li Tec Battery GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Li Tec Battery GmbH filed Critical Li Tec Battery GmbH
Publication of EP2449611A1 publication Critical patent/EP2449611A1/fr
Withdrawn legal-status Critical Current

Links

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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/258—Modular batteries; Casings provided with means for assembling
    • H01M50/26—Assemblies sealed to each other in a non-detachable manner
    • 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
    • H01M50/105—Pouches or flexible bags
    • 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
    • H01M50/121—Organic 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
    • H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
    • 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
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/211—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for pouch cells
    • 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
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor

Definitions

  • the invention relates to a method for producing a battery assembly.
  • the invention further relates to an electrochemical cell used for this purpose and a battery arrangement produced by the method.
  • a composite battery assembly which is formed by stacking and integrating a plurality of individual cells.
  • the tongues of the individual cells which represent the current conductors, are connected to the tongue of an adjacent single cell
  • the plurality of composite electrochemical cells may be housed in a battery case. It is an object of the present invention to provide an improved method of manufacturing a battery assembly. This object is achieved by a method for producing a battery assembly, comprising at least a first electrochemical cell and at least a second electrochemical cell, each electrochemical cell having an enclosure, characterized in that a cladding part of the enclosure of the first electrochemical cell with a cladding part of the enclosure the second electrochemical cell is materially connected.
  • a cohesive connection means a connection of two components, in particular at the atomic or molecular level.
  • the electrochemical cells can get into firm connection with each other, wherein preferably can be dispensed with a further connecting device, in particular a housing or other connecting components.
  • the cohesive connection can vary depending on the accumulating
  • the cohesive connection can be produced by means of heat sealing, hot pressing or gluing, in particular hot gluing.
  • an at least partial limitation is to be understood which delimits one or more electrode stacks of an electrochemical cell to the outside.
  • the envelope is preferably gas and liquid tight, so that a material exchange with the environment can not take place.
  • the electrode stacks are disposed within the enclosure. At least one current conductor, in particular two current conductors, can extend out of the enclosure and serve to connect the electrode stacks.
  • the outwardly extending current conductors preferably represent the positive pole connection and the negative pole connection of the electrochemical cell. However, it is also possible for a plurality of current conductors to extend out of the enclosure, in particular an even number of current conductors. If the electrochemical cell has two electrode stacks which are connected in series with one another, two electrodes of different electrode stacks are preferably connected to one another.
  • the wrapping may consist of one or more
  • Enclosed parts may be formed, in particular be formed from one or more moldings and / or heat conducting plates. Furthermore, a
  • One of the covering parts may preferably be a layer of a sealable material, in particular a thermoplastic
  • the wrapping part is made of a laminated packaging film.
  • the layer of sealable Material is preferably for the production of cohesive
  • connection used.
  • the cohesive connection is produced exclusively by means of the layer of a sealable material of a wrapping part or several wrapping parts.
  • a laminated film which may be formed as a laminated packaging film, can be understood to mean a metallic carrier film or a carrier sheet, which is coated on at least one side with a sealable material, in particular a thermoplastic.
  • the laminated films may be formed flat or through a
  • Forming process in particular by deep drawing, be designed as a molded part.
  • a molded article made of a laminated film is a laminated molded article.
  • Carrier plate may preferably be made of aluminum.
  • thermoplastic plastic can be used in particular polypropylene and polyamide.
  • a sealable material is to be understood in particular as meaning a material which is in a solid state at room temperature and preferably also at operating temperatures of the electrochemical cell to be reached.
  • the sealable material can at least partially fall into a liquid or only semi-liquid state and get into material connection with other components.
  • two separate amounts of each other in the solid state are to be understood in particular as meaning a material which is in a solid state at room temperature and preferably also at operating temperatures of the electrochemical cell to be reached.
  • an electrode stack is to be understood as meaning a device which, as an assembly of a galvanic cell, also comprises
  • Electrode stack or the galvanic cell supplied electrical energy converted into chemical energy and stored.
  • the galvanic cell supplied electrical energy converted into chemical energy and stored.
  • Electrode stack a plurality of layers, at least one anode layer, a cathode layer and a separator.
  • the layers are stacked, with the separator layer at least partially disposed between an anode layer and a cathode layer.
  • This sequence of layers within the electrode stack is preferably repeated several times.
  • some electrodes are in particular electrically connected to each other, in particular connected in parallel.
  • the layers are wound up into an electrode winding.
  • electrode stack will also be used for electrode winding.
  • a frame is preferably a substantially frame-shaped device whose
  • the frame can itself represent a wrapping part, if the frame
  • a partially circumferential frame may be provided only on one or more sides of the electrochemical cell and in particular comprise one or more frame strips.
  • the partially encircling frame encloses the electrode stack not necessarily complete.
  • a molded part is to be understood as a solid which is adapted in particular to the shape of an electrode stack.
  • a molding acquires its shape and / or its stability only in cooperation with a further molding and / or an electrode stack.
  • a further molding and / or an electrode stack In the case of a cuboid electrode stack, the
  • the shaped part preferably has a surface section which essentially adjoins a largest side surface of the cuboid electrode stack
  • some dimensions of the molded part are preferably selected larger than certain dimensions of an electrode stack.
  • the moldings When two moldings are placed around the electrode stack, the moldings partially protrude beyond the electrode stack and partially form a protruding edge forming a seam portion.
  • the seam section of a molded part preferably touches a seam section of a further molded part, preferably flat.
  • a first molded part of a cladding is formed as a flat plate, while a second molded part of the cladding around the
  • Electrode stack conforms to the first molding.
  • a molded part may be formed as a heat conducting element, in particular as a heat conducting plate and have a higher thermal conductivity than the other molded parts. In particular, it touches at least one electrode stack partially and thermally conductive. Depending on a temperature difference between the molded part and an electrode stack, heat energy is transferred out of an electrode stack or in an electrode stack.
  • a molded part is arranged between two electrode stacks and touches both electrode stacks heat-conducting.
  • the term molded part includes
  • a connecting portion of the first electrochemical Cell is applied to a connecting portion of the second electrochemical cell, wherein the connecting portion is disposed on a cladding part of the respective electrochemical cell.
  • a connection section is to be understood as an area of the enclosure which is used for the material connection with another
  • a connecting portion may have a certain surface configuration, namely in particular a
  • connection section can also be provided without any special configuration to almost every part of the enclosure of an electrochemical cell.
  • the casing itself is preferably formed by connecting a first wrapping part with at least one second wrapping part.
  • the envelope is designed in particular in several parts. Only through the
  • the casing is closed itself.
  • Enclosed parts of the second electrochemical cell connected before the first cladding part of the first electrochemical cell is connected to a second cladding part of the first electrochemical cell.
  • cladding parts of adjacent electrochemical cells can be firmly connected to one another before completion of the individual electrochemical cell and subsequently form a component which is provided for further processing.
  • the sheaths of the electrochemical cells can be closed by connecting further enclosure parts to the aforementioned enclosure parts.
  • an electrode stack was brought into abutment with a cladding part of the first electrochemical cell.
  • the first electrochemical cell can be closed by applying at least one further cladding part.
  • a wrapping part in particular a molded part as
  • Envelope part for at least partially wrapping of two, in particular two adjacently arranged electrochemical cells are used. This means in particular that this wrapping part both a
  • Envelope part of an electrochemical cell and a cladding part of the other electrochemical cell can represent.
  • the number of parts can be reduced thereby, which can have a favorable effect on costs and weight. Furthermore, due to the smaller number of parts, the assembly can be simplified.
  • At least one of the covering parts is a molded part.
  • At least one of the covering parts is a heat-conducting plate.
  • at least one of the covering parts is a frame or a frame part.
  • the invention further relates to an electrochemical cell, comprising at least one electrode stack, which is at least partially enclosed by a sheath, wherein the sheath comprises at least one molded part with a surface portion and a seam portion, wherein the seam portion is arranged circumferentially around the surface portion, characterized in that a connecting portion is provided.
  • One of the molded parts preferably has a layer of a sealable material, in particular a thermoplastic, and in particular is produced from a laminated packaging film.
  • the layer of sealable material may preferably for producing a
  • the molding is a laminated molding.
  • the seam portion is raised from a plane E, in which the surface portion is arranged out.
  • seam section is a
  • the seam section represents, in particular, an interface of the envelope of an electrochemical cell.
  • Parts of the seam section may at least partially represent the connecting section.
  • the connecting portion may be disposed adjacent to at least a part of the seam portion.
  • two connecting sections are preferably provided, which are arranged in particular on opposite sides of the molded part, in particular on opposite regions of the circumferential seam section. It can also be provided a plurality of connecting portions.
  • the attachment of at least two electrochemical cells can be given increased strength.
  • the configuration of the connecting sections can thereby adapted to the occurring loads.
  • At least one connecting portion at one
  • a connecting device which is preferably arranged outside the actual envelope, can arise. Occurring loads, which occur due to the attachment points of the individual electrochemical cells to each other, preferably do not affect the critical envelope area near the electrode stack. Furthermore, the
  • connection sections particularly well accessible for a tool with which the attachment of the individual connection sections can be made.
  • the connection sections are arranged, in particular, away from heat-critical points of the enclosure in the vicinity of the electrode stacks. This is favorable for a good heat dissipation of the
  • Electrode stacking by the sheath, as well as the fatigue strength of the connection of two electrochemical cells are Electrode stacking by the sheath, as well as the fatigue strength of the connection of two electrochemical cells.
  • At least one connecting portion is raised from the
  • the surface portion which is preferably arranged in the plane E, may represent a contact surface for an adjacent electrochemical cell. Because of that
  • At least one connecting section projects from the seam section in the direction away from the plane E. It may be the surface portion, which is preferably arranged in the plane E, represent a contact surface for an adjacent electrochemical cell. Characterized in that, however, the connecting portion now on the
  • Connecting portion further spaced from the plane E and therefore protrudes over the seam portion toward a arranged on the other side of the electrochemical cell with respect to the plane E
  • Electrochemical cell so that the connecting section can serve for connection to this electrochemical cell.
  • the connecting section can serve for connection to this electrochemical cell.
  • Electrochemical cell are connected. This can also result in an improved sealing effect. If, in fact, a connection at the seam sections of two molded parts which belong to an electrochemical cell are leaking, the joint between the two shaped parts of adjacent electrochemical cells can assume the sealing tasks and avoid a mass transfer from the interior of the cell to the environment.
  • the connecting portion comprises a connecting surface, which is arranged in particular parallel to the plane E, in particular in the plane E.
  • the connection surface serves to connect the connection section to the connection section of an adjacent electrochemical cell, wherein the material-locking connection is established at the connection surfaces of the adjacent electrochemical cells. Due to the parallel orientation of the connecting surfaces to the plane E and thus to the surface portion of the molding, the alignment of the electrochemical cells to each other also take place parallel to the plane E. If the connection surface is arranged in the plane E, the surface portions of the adjacent electrochemical cells may abut each other.
  • the invention relates to an electrochemical cell of the aforementioned type, wherein two molded parts are joined together at their seam sections, in particular cohesively connected to each other.
  • the at least two molded parts may be identical or mutually mirror-inverted molded parts; this does not affect minor deviations from the identical or mirrored form, which in particular
  • the envelope may comprise at least one heat conducting plate, wherein at least one molded part with a
  • the Seam portion is flanged to the heat conducting plate.
  • the heat-conducting plate itself represents an envelope part and at least takes over
  • the battery arrangements of the type mentioned above can be easy to assemble.
  • the invention further relates to a battery arrangement, comprising a first electrochemical cell and a second electrochemical cell, which are connected to one another in a material-locking manner. It will be on the already
  • the sheaths of the respective electrochemical cells are materially connected to one another.
  • the cohesive connection can be effected in particular by means of heat sealing, hot pressing or hot gluing.
  • at least one of the covering parts has a layer of a sealable material, in particular of a thermoplastic plastic, and is produced in particular from a laminated packaging film.
  • the cohesive connection between the wrapping parts is formed by at least parts of the layer of sealable material of one or more of the wrapping parts.
  • the cohesive connection is exclusively the layer of sealable material of one or more of the covering parts for the production of cohesive connection used. This means, in particular, that no other auxiliaries, such as adhesives or sealants, which is not part of the cladding parts, are used to produce the integral connection.
  • a wrapping part may be formed as a molded part, in particular as a laminated molded part.
  • the first electrochemical cell comprises an at least partially encircling first frame, in particular completely encircling first frame
  • the second electrochemical cell comprises an at least partially encircling second frame, in particular completely encircling second frame, wherein the frames are adjacent
  • Expansion basically meant the extension, which is substantially coaxial with a perpendicular to a flat envelope portion, in particular the surface portion can be seen.
  • the radial extent may therefore also have a polygonal shape.
  • first radial extent is greater than the second radial extent
  • at least a portion of the one frame overlaps a portion of the other frame. It can also overlap the entire frame the other whole frame.
  • first electrochemical cells and second electrochemical cells may be arranged alternately, whereby the assembly of the first electrochemical cells to the second Electrochemical cells or vice versa through the recess, which are formed by respective second frame and first frame or portions thereof, can be simplified.
  • the first frame of the first electrochemical cell has a cover portion at which the first frame of the first electrochemical cell is coincident with the second frame of the second electrochemical cell, and further the first frame of the first electrochemical cell has an overlapping portion at which the first frame overlaps the second frame.
  • the invention further comprises a battery assembly which has been manufactured in the aforementioned manner.
  • a battery assembly which has been manufactured in the aforementioned manner.
  • seam sections of adjacent electrochemical cells with connecting sections of adjacent electrochemical cells form a honeycomb-like connection structure.
  • the honeycomb-like connection structure between the individual molded parts can provide a robust connection against external loads while maintaining low weight.
  • Fig. 2 is a partial cross-section of the battery assembly of Figure 1;
  • FIG. 4 shows the battery arrangement from FIG. 3
  • Fig. 5 shows a battery arrangement in a third embodiment, shown schematically in cross section, during the individual
  • Fig. 6 is a partial cross section of the battery assembly of Figure 5;
  • FIGS. 1a) to 1d) describe how a battery arrangement 101 can be produced in a first embodiment.
  • FIG. 1 a) two molded parts 104 ', 104 "can first be seen, which cover parts of FIG. 1 a).
  • Each of the molded parts has a surface portion 110, on which radially adjoining a seam portion 107 circumferentially.
  • the surface portion 110 biases a plane E.
  • the seam section 107 protrudes out of the plane E.
  • Moldings have an aluminum layer, which is provided on both sides with a layer of polypropylene.
  • Polypropylene is a sealable material.
  • polyamide can be used as the sealable material.
  • Respectively on outer surfaces 106 of the molded parts 104 connecting portions 108 are arranged, which are located within the surface portion 110.
  • the two mold parts 104 ', 104 "are firmly connected to one another at the connecting sections 108 by means of a first peripheral bond 115.
  • the bonding takes place at a respective connecting surface 113 at the connecting section 108 of the respective moldings 104.
  • the connecting surfaces 113 lie in the plane E. It is in the process stage shown in Figure 1b) now the
  • Molded parts 104 of different electrochemical cells are connected to one another without further covering parts of the envelopes 103 of the respective electrochemical cells 102 being connected to the molded parts 104 ', 104 "The envelopes 103 are therefore not yet closed In the next step, as in FIG see is, in each case one
  • Inner surface 109 of the molded parts 104 ', 104 " is applied to an electrode stack 114. Subsequently, a further cladding part, namely a molded part 104' is applied to the molded part 104 'or 104" "to the molded part 104". and 104 "" are in turn already firmly connected to other moldings of enclosures of other electrochemical cells.
  • the molded parts 104 ', 104' "or 104", 104 "" respectively associated with an electrochemical cell 102 and its sheathings 103 are then connected to each other by means of a second peripheral bond 115 "at the respective seam sections 107 Then the sheaths 103 of the respective
  • FIG. 2 shows the electrochemical cell 101 of the first embodiment in detail in partial cross section.
  • current collectors 111 can be seen on all electrochemical cells 102, which can be seen at a specific point of the seam section 107 through the covering 103 extend. Furthermore, it can be seen that the current conductors 111 are electrically conductively connected to at least a part of the electrode stacks 114.
  • FIG. 3 shows a further development of the battery arrangement from FIG. 1.
  • Battery assembly 201 can be produced in a second embodiment. There are two mold parts 204 ', 204 "to recognize, which are formed symmetrically to each other
  • Envelope parts of a common enclosure 203 of a common electrochemical cell 202 Envelope parts of a common enclosure 203 of a common electrochemical cell 202.
  • the moldings 204 correspond to in
  • the mold parts 104 of Figure 1 Essentially the mold parts 104 of Figure 1. In the following, therefore, only the differences are discussed. Unlike the molded parts 104 according to FIG. 1, the molded part 204 has in each case two separate connecting sections 208 which adjoin the seam sections 207 on the outside on two different sides of the molded part 204. The connecting sections 208 are thus on a side facing away from the Ff kauenabrough 210 of
  • Connecting portion 208 in this case has a connecting surface 213, which is arranged in the plane E.
  • Electrochemical cells are firmly attached to the existing electrochemical cells in the same way.
  • the battery arrangement 201 is shown in sections with the respective electrochemical cells 202.
  • Figure 4b) is a honeycomb-like structure to recognize, from the
  • FIG. 5 shows a development of the battery arrangement from FIG. 1. In this respect, reference is made to the explanations regarding FIG. 1 and only to FIG.
  • a heat conducting plate 305 is arranged between two electrode stacks 314.
  • the heat-conducting plate 305 itself constitutes a cladding part of the cladding 303 of an electrochemical cell 302.
  • the molded parts 304 are firmly connected to seam sections 307 "of the heat-conducting plates 305 by means of a second gluing 315".
  • the heat conducting plate 305 constitutes a cladding part which is used to partially encase two adjacent electrochemical cells 302.
  • the molded parts 304 are designed identically to the shaped parts 104 of the battery arrangement from FIG. The connection of two adjacent molded parts 304 takes place by the manner already explained with reference to FIG. An electrode stack rests against both a molded part 304 and a heat-conducting plate 305.
  • the battery assembly 301 in the third embodiment is to be added which comprises a plurality of electrochemical cells 302.
  • Electrode stacks 314 of these electrochemical cells are connected in series with each other. This arrangement is particularly suitable for binary cells.
  • FIG. 7 shows a further development of the battery arrangement from FIG. 1. In this respect, reference is made to the explanations regarding FIG. 1 and only to FIG.
  • the battery assembly 401 in a fourth embodiment comprises a plurality of first electrochemical cells 402 'and a plurality of second electrochemical cells 402 ", wherein the first and second electrochemical cells are arranged alternately with each other In Figure 7a), a second electrochemical cell 402" is shown prior to assembly.
  • the second electrochemical cell 402 " has a cell stack 414 which is arranged between two identical molded parts 404
  • Moldings 404 are designed flat, wherein the surface portion 410 is arranged in a plane E together with the seam portion 407. There is also shown a circumferential second frame 412 "which frames the cell stack 414. With a respective first bond 415 ', the two are assigned to a common second electrochemical cell 402"
  • the mold parts 404 have a circumferential projection 418, which protrudes radially beyond the second frame 412 ". As a result, a radial recess 416 is formed between the two mold parts 404. Between two second electrochemical cells 402 "becomes another
  • Cell stack 414 is framed by a first frame 412 '.
  • the second frame 412 ' is connected by means of a respective second bonding 415 "with the Moldings 404 of the second electrochemical cell 402 "at the
  • first frame 412 ' has a radial extension Ri has, which is greater than a radial extent R 2 of the second frame 412 "is. In this respect, projects beyond the first frame 412' to the second frame 412 'in the circumferential direction and extends in the radial region of the recess 416.
  • Recesses 416 may engage a tool 419 which is used for the second gluing 415 "of the second frame with the molding 404.
  • the molding 404 forms an enveloping part for both the enclosure of one of the first electrochemical cells 402 'and for the enclosure of one second electrochemical cells 402 ".
  • the first frames 412 ' form sheath portions of the respective first electrochemical cell 402.
  • the second frames 412 form sheath portions of the respective second ones
  • Electrochemical cell 402 ".
  • FIG. 8 shows a development of the battery arrangement from FIG. 7. In this respect, reference is made to the explanations regarding FIG. 7 and only to FIG.
  • the electrochemical cells 502 of the battery assembly 501 in a fifth embodiment each include a frame 512 disposed circumferentially around an electrode stack 514. Further, each electrochemical cell 502 includes two mold parts 504, respectively, which are configured substantially identically to the mold parts 404 of the previous embodiment.
  • the frame 512 have on each end face on a circumferential shoulder 517, on each of which the molding 504 can be brought into abutment and by means of a first
  • FIG. 9 shows a development of the battery arrangement from FIG. 1. In this respect, reference is made to the explanations regarding FIG. 1 and only to FIG.
  • the battery arrangement 601 in a sixth embodiment comprises a plurality of electrochemical cells 602, the enclosure 603 of which is formed by two mold parts 604 ', 604 "which are not identical or mirror-symmetrical to one another 1, a second molded part 604 "is configured in the basic structure identical to the first molded part 204 'from FIG.
  • the first molded part 604 ' is at its seam portion 607 * by means of a first bond 615' with the
  • the second mold part 604' is further fixedly connected to another second mold part 604 "of another electrochemical cell
  • Bonding 604 ' takes place at a further connecting portion 608'" identical to the first bonding 115 'according to the first embodiment, as shown in FIG. In this respect, reference is made to the relevant explanations.
  • the second moldings 604 "thus have two
  • Electrochemical cells 602 gas- and liquid-tight closes, are leaking, so by the second bonding 615 "a mass transfer between the environment and the interior of the electrochemical cell 602 avoided.
  • the electrochemical cell 602 has an improved, because redundant, cladding 603 in that.
  • Bonding applies that the bonding between the wrapping parts are formed by heat-sealable layers of the wrapping parts.
  • the heat-sealable layers of the cladding parts are brought into contact with each other and then subjected to heat to produce this cohesive connection.
  • the heat-sealable material melts on the non-wrapping parts and can consequently be combined with the heat-sealable material of the other
  • Envelope parts get into cohesive connection.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Secondary Cells (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un ensemble batterie (101, 201,...), comprenant une première cellule électrochimique (102, 202,...) et au moins une deuxième cellule électrochimique (102, 202,...), chaque cellule électrochimique présentant une enveloppe (103, 203,...). L'invention est caractérisée en ce qu'une partie (104, 105, 112; 204, 205, 212;...) de l'enveloppe (103, 203,...) de la première cellule électrochimique (102, 202,...) est reliée par liaison de matière à une partie (104, 105, 112; 204, 205, 212;...) de l'enveloppe (103, 203,...) de la deuxième cellule électrochimique (102, 202,...).
EP10722636A 2009-06-29 2010-06-01 Procédé de fabrication d'un ensemble batterie Withdrawn EP2449611A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009031014A DE102009031014A1 (de) 2009-06-29 2009-06-29 Verfahren zum Herstellen einer Batterieanordnung
PCT/EP2010/003318 WO2011000454A1 (fr) 2009-06-29 2010-06-01 Procédé de fabrication d'un ensemble batterie

Publications (1)

Publication Number Publication Date
EP2449611A1 true EP2449611A1 (fr) 2012-05-09

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP10722636A Withdrawn EP2449611A1 (fr) 2009-06-29 2010-06-01 Procédé de fabrication d'un ensemble batterie

Country Status (8)

Country Link
US (1) US20120156538A1 (fr)
EP (1) EP2449611A1 (fr)
JP (1) JP2012531717A (fr)
KR (1) KR20120093757A (fr)
CN (1) CN102484222A (fr)
BR (1) BRPI1014947A2 (fr)
DE (1) DE102009031014A1 (fr)
WO (1) WO2011000454A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102012018158A1 (de) * 2012-09-14 2014-04-10 Eads Deutschland Gmbh Strukturbauteil, insbesondere für ein Luftfahrzeug, und Verfahren zum Herstellen eines Strukturbauteils
KR101609212B1 (ko) 2013-08-28 2016-04-05 주식회사 엘지화학 냉매 및 배기 가스의 혼합을 방지하는 구조를 포함하는 전지모듈
JP7119088B2 (ja) 2018-06-27 2022-08-16 京セラ株式会社 電気化学セル
CN113097610B (zh) * 2021-03-31 2023-02-24 东莞新能安科技有限公司 电化学装置模组和电子装置

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JP2004055441A (ja) * 2002-07-23 2004-02-19 Nissan Motor Co Ltd ラミネートフィルム外装電池、電池群、組電池、および組電池モジュール

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NL7405433A (fr) * 1973-05-10 1974-11-12
FR2275894A1 (fr) * 1974-06-20 1976-01-16 Accumulateurs Fixes Batterie d'accumulateurs
JP4088359B2 (ja) * 1997-10-20 2008-05-21 松下電器産業株式会社 集合型密閉二次電池
JP4637305B2 (ja) * 1999-01-04 2011-02-23 三菱電機株式会社 電池パック
EP1033771B1 (fr) * 1999-03-03 2017-07-26 Panasonic Corporation Batterie secondaire integrée et fermée
JP4211322B2 (ja) 2002-08-26 2009-01-21 日産自動車株式会社 積層型電池、組電池、電池モジュール並びに電気自動車
KR100708023B1 (ko) * 2004-03-23 2007-04-16 닛본 덴끼 가부시끼가이샤 필름 외장 전기 디바이스 및 그 제조 방법
JP2006172994A (ja) * 2004-12-17 2006-06-29 Nissan Motor Co Ltd 組電池および組電池の製造方法
KR100870355B1 (ko) * 2007-07-19 2008-11-25 삼성에스디아이 주식회사 파우치형 전지팩

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Publication number Priority date Publication date Assignee Title
JP2004055441A (ja) * 2002-07-23 2004-02-19 Nissan Motor Co Ltd ラミネートフィルム外装電池、電池群、組電池、および組電池モジュール

Also Published As

Publication number Publication date
CN102484222A (zh) 2012-05-30
WO2011000454A1 (fr) 2011-01-06
DE102009031014A1 (de) 2010-12-30
JP2012531717A (ja) 2012-12-10
US20120156538A1 (en) 2012-06-21
KR20120093757A (ko) 2012-08-23
BRPI1014947A2 (pt) 2016-04-26

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