EP1166374A1 - Batterie contenant des cellules electrochimiques et son procede de realisation - Google Patents

Batterie contenant des cellules electrochimiques et son procede de realisation

Info

Publication number
EP1166374A1
EP1166374A1 EP00922425A EP00922425A EP1166374A1 EP 1166374 A1 EP1166374 A1 EP 1166374A1 EP 00922425 A EP00922425 A EP 00922425A EP 00922425 A EP00922425 A EP 00922425A EP 1166374 A1 EP1166374 A1 EP 1166374A1
Authority
EP
European Patent Office
Prior art keywords
bag
battery
housing
edge
cap
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Withdrawn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
EP00922425A
Other languages
German (de)
English (en)
Inventor
Klaus Hamm
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.)
Harro Hofliger Verpackungsmaschinen GmbH
Original Assignee
Harro Hofliger Verpackungsmaschinen 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 Harro Hofliger Verpackungsmaschinen GmbH filed Critical Harro Hofliger Verpackungsmaschinen GmbH
Publication of EP1166374A1 publication Critical patent/EP1166374A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/008—Standing pouches, i.e. "Standbeutel"
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes, or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/04—Articles or materials wholly enclosed in single sheets or wrapper blanks
    • B65D75/20—Articles or materials wholly enclosed in single sheets or wrapper blanks in sheets or blanks doubled around contents and having their opposed free margins united, e.g. by pressure-sensitive adhesive, crimping, heat-sealing, or welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • 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
    • H01M50/122—Composite material consisting of a mixture of organic and inorganic materials
    • 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
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • H01M50/174—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells
    • H01M50/178—Arrangements of electric connectors penetrating the casing adapted for the shape of the cells for pouch or flexible bag 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
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2201/00—Means or constructions for testing or controlling the contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2583/00—Containers or packages with special means for dispensing contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2585/00—Containers, packaging elements or packages specially adapted for particular articles or materials
    • 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 invention relates to a battery containing electrochemical cells and their production.
  • the electrochemical cells of the battery which are charged with electrolyte, have cathodes and anodes. By adding this electrolyte, the electrochemical cells are activated, i.e. made ready.
  • Flat batteries e.g. Ll-ion batteries are sealed in aluminum composite foils.
  • the composite films have a coating on the inside that connects to the connections of the battery plates and thereby enables a gas-tight packing.
  • thermoforming machines for the production of batteries containing electrochemical cells.
  • the rather rigid composite film is either deep-drawn on one side and welded with a cover film, or both composite films are each provided with a depression by deep-drawing and welded to one another when folded up.
  • the battery plates are then located in the two opposite recesses.
  • the cathode and anode tabs which represent the electrical connections of the battery, are laid out as flat metal foils from one side of the container, between the two container parts, each provided with a trough, led out.
  • the anode and cathode lugs must never come into contact with the cut edges of the aluminum composite foil, otherwise a short circuit will occur and the battery would be destroyed.
  • edge strips of the composite film are folded outwards by approximately 90 ° (degrees) before the two housing parts are brought together.
  • the edge strips are folded over again by 90 ° (degrees), that is to say a total of 180 ° (degrees). Due to the stiffness of the composite film, this folding technique is a considerable effort.
  • the object of the invention is to provide the most economical possible way of providing batteries containing electrochemical cells.
  • a method according to the invention for producing such batteries is specified by the features of claim 1.
  • the battery according to the invention itself is the subject of the independent claim 11. Further development of both the method according to the invention and the batteries according to the invention are subjects of the subsequent subclaims.
  • a first essential advantage of the invention is that the edge strips of the battery housing, that is to say for example the edge strips of the Al composite foils used, no longer have to be folded over complexly in order to have one to prevent electrical contact with the anode and cathode lugs, but instead an electrically non-conductive barrier is positioned between the electrically conductive end faces of the opposite edge strips of the two composite films and the electrically conductive lugs.
  • This barrier can be designed and provided in the form of a sheet or a coating.
  • the web or coating can be applied to the respective inside of the two composite films, for example by welding. The web can then protrude or overlap the end faces of the two composite films.
  • the coating can bond to the anode and cathode lugs, thus stripping them from the composite film.
  • the individual bags can be made on the flat bag machine a composite film web drawn off an endless roll. As is known per se, the composite film web pulled off the roll can be folded once in the pull-off direction. The lower longitudinal fold then represents the bottom area of the bags that will be created later.
  • the two V-shaped opposite web parts, which represent the later two bag walls, are connected to one another by spaced-apart transverse sealing seams. The bags open at the top are then created between two transverse sealing seams.
  • the respective filling material can then be stored in the open-topped bag, as is known per se in flat bag machines. In the present case, this filling material consists of electrochemical cells and electrolyte. After the filling process has been completed, each bag is closed by an upper longitudinal seal.
  • Bag walls are attached.
  • Corresponding two webs can be attached to the longitudinal edges of the composite film before the longitudinal folding of the composite film web.
  • Such a possibility opens up particularly favorably when using a reclosable strip known per se.
  • a reclosable strip consists of two parts which can be attached to one another by interlocking.
  • a corresponding technique for attaching a reclosable strip to the battery bag walls is the subject of an exemplary embodiment also shown in the drawing.
  • the use of the two halves of a reclosable strip as electrically non-conductive tracks has the advantage that the two halves of the reclosable strip can be welded to the bag walls in a precisely aligned manner in terms of height. The welding can namely take place in the closed state of the reclosable strip.
  • the respective end face of the two composite films is reliably protected against contact with the anode and cathode flags, and on the other hand it is prevented that one or the other electrically non-conductive web strip can reach the area of the upper longitudinal sealing seam.
  • the electrically non-conductive web should namely be present above the longitudinal sealing seam for reasons of tightness.
  • the reclosable strip is therefore not used in the finished flat bag for reasons of its closing technique, but rather is only used for precise insertion into the area between the two bag walls due to its closing technique.
  • An additional but not absolutely necessary aspect is that the existing thickening of the reclosure strip in the area of its closure area in the area of the anode and cathode lugs further increases the contact protection.
  • a reclosable strip can be introduced into the area between the two bag walls using a holder in which the reclosable strip is guided in its closed state. This holder can be positioned like a sword in the V-shaped space between the two bag walls.
  • the bag walls can then be welded to the two outer sides of the reclosable strip without problems by means of outer sealing jaws, and the two still connected halves of the reclosable strip can thereby be welded to the inner sides of the two bag walls.
  • the two halves of the reclosure strip are clamped together by the closure technology of the reclosure strip, at the same exactly predetermined height relative to the edge of the
  • Bag walls available and then attached to the bag walls.
  • the bag walls By pulling on the reclosable strip, the bag walls can be separated from each other and the bag can thereby be opened.
  • the electrochemical cells and the electrolyte can then be filled into the bag. Due to the exact positioning of the reclosable strip on the bag walls, the top longitudinal sealing seam, which closes the bag, can be attached easily and safely.
  • the reclosure strip not all of its material areas are necessarily required for the reclosure strip. In the embodiment shown in the drawing, only its "lower” area, including its closure area, is present.
  • the closure area can represent its upper end. With this upper end, the reclosure strip can then protrude upward from the area of the bag walls.
  • the thickened, open closure area of the reclosable strip spreads the two edge areas of the bag walls away from each other, which protects against contact and thus creates a short circuit between the two Flags prevented by contact with the metal free end faces of the bag walls.
  • FIG. 1 is a schematic side view of a battery containing electrochemical cells according to the invention
  • FIG. 3 is an enlarged fragmentary representation of the upper region of the battery of FIG. 1,
  • FIG. 4 shows a further enlarged partial cross section of the upper edge area of the battery according to FIG. 1,
  • FIG. 5 is a schematic side view of the illustration of FIG. 4, without showing the outer welding jaws
  • FIG. 6 shows a schematic side view of the upper region of a battery according to a further embodiment of the invention
  • Fig. 7 is a schematic side view of the upper
  • FIG. 1 shows a battery 10 containing electrochemical cells.
  • the housing of this battery 10 consists of a so-called flat bag 12. In this
  • the connection lugs 18 consisting of anode and cathode lugs look out of the top of the flat bag 12.
  • the top edge of the flat bag 12, i.e. its upper free bag edge 20 is - according to - in the drawing - towered above by a reclosable strip 30.
  • the flat bag 12 has, as is usual with flat bags, lateral transverse sealing seams 22 and an upper longitudinal sealing seam 24 closing the respective bag 12. The manufacture of such flat bags 12 on a flat bag machine with transverse sealing seams 22 and longitudinal sealing seams 24 and the filling with, for example, food components is known per se.
  • the upper longitudinal sealing seam 24 is provided leaving an edge area 26 free, and thus at a certain distance from the bag edge 20.
  • this flat bag 12 differs from commonly produced flat bags.
  • the reclosable strip (WVS) 30 is attached in such a way that its outer sides are attached to the respective inner sides of the opposing bag walls 12.1 and 12.2 (FIG. 3), as is welded on in the present case.
  • the resealable strip 30 is a known object and consists of an electrically non-conductive plastic material.
  • the material of the flat bag 12 consists of an aluminum composite film. The cut edges of the composite film form the upper free bag edge 20 and are freely accessible from the outside.
  • the left and right part of a reclosable strip 30 is present between the connecting lugs 18 and the two bag walls 12.1 and 12.2 in the area of the respective bag edge 20 on both sides of the connecting lugs 18, the left and right part of a reclosable strip 30 is present.
  • the thickening 32 of the reclosable strip 30 in the area of its mutual clamping area has the effect that the bag edges 20 are each pushed outwards by the connecting tabs 18.
  • the resulting spreading of the bag edge 20 increases the protection against contact between the connecting tabs 18 and the bag edge 20.
  • the upper fastening legs of the reclosable strip 30 have been removed almost completely since they are not required.
  • the resealable strip 30 thus essentially has only its lower fastening strips 30.1 and 30.2, with which it is welded to the two bag walls 12.1 and 12.2.
  • the battery 10 is manufactured in connection with the flat bag 12 in the following way.
  • the bag consists of a one-piece composite film web. During its manufacture, this one-piece composite film web is folded over an edge running in the direction in which the web is drawn off. This creates the lower longitudinal fold 34.
  • the two walls 12.1 and 12.2 represent two halves of the web in the transverse direction of the web and are connected in one piece via the longitudinal fold 34.
  • the bottom area of the bag 12 can be designed differently, depending on the type of bag. Regardless of the respective bottom formation, in the upper area of the bag, in the area of its opening, the lower area of a reclosable strip 30 is attached.
  • the composite film web passes through at least two downstream sealing stations.
  • transverse sealing seams 22 are applied and in a further sealing station the longitudinal sealing seam 24 is applied, thereby connecting the opposing pouch walls 12.1 and 12.2 to one another at said locations.
  • the transverse sealing seams 22 can also be provided first in a lower region and later in a subsequent second, upper region, in order to enable the reclosable strip 30 to be welded on undisturbed over the entire length 38 of the bag 12.
  • the reclosable strip 30 or its lower components can then be positioned in the correct position in a simple manner, for example with a sword-like holding plate 40 between the upper regions of the two bag walls 12.1 and 12.2.
  • the same is, for example, closed in a longitudinal slot 42 of the holding plate 40.
  • the holding plate 40 Above the longitudinal slot 42, the holding plate 40 has a thickness D.
  • the web 48 of the holding plate 40 a thickness D which is at least smaller than the thickness D by the thickness of the two legs 44, 46 of the two halves 30.1 and 30.2 of the reclosable strip 30.
  • the holding plate 40 In the connection area to the longitudinal slot 42, which is not shown in the drawing, the holding plate 40 is designed like a tunnel. As a result, the closed reclosure strip 30 can be pulled lengthwise through the tunnel until, when it comes out of the tunnel, it is approximately flush with the outside of the holding plate 40 in the longitudinal slot 42 with its respective outside.
  • Legs 44, 46 are welded to the two bag walls 12.1 and 12.2 in the area of their upper edge areas 26. Since the sealing jaws are not arranged in the area of the mutual clamping area 54 of the two halves 30.1, 30.2 of the reclosure strip 30, the heat emitted by the sealing jaws is not introduced directly into this clamping area 54, but only in the area of the legs 44, 46 and the existing bag walls 12.1 and 12.2 in this area. While the resealable strip 30 is welded with its legs 44, 46 to the bag walls 12.1 and 12.2, the clamping area 54 is not thermally deformed. This makes it possible to reopen the resealable strip 30 by subsequently pulling its two halves 30.1 and 30.2 apart from their mutual clamping.
  • the transverse sealing seams 22 can only be in a lower region and, after the reclosure strip 30 and that have been welded on subsequent absence of the holding plate 40 may also be provided in its upper region. If there is a sufficient vertical distance between the upper edge 60 of the transverse sealing seams 22 and the lower edge 62 of the holding plate 40, the transverse sealing seams 22 could also be produced in one piece.
  • the reclosure strip 30 After the reclosure strip 30 has been fastened to the bag walls 12.1 and 12.2, the reclosure strip 30 is pulled apart and the bag 12 is thereby opened. The battery plate 14 and the electrolyte 16 can now be stored in the respective bag 12.
  • the two halves of the reclosable strip 30 or the other comparatively existing electrically insulating materials can also be permanently connected to one another if they are subsequently cut open in the longitudinal direction 64 or approximately 1-2 mm above the free one
  • Bag edges 20 of the bag walls 12.1 and 12.2 are cut off.
  • the bag 12 After the bag 12 has been filled, it is closed by attaching the upper longitudinal sealing seam 24.
  • the upper edge 60 of the transverse sealing seam 22 is at the same time the upper edge of the longitudinal sealing seam 24.
  • An optimally sealed bag corner is also formed in the joint area of the transverse sealing seam 22 and longitudinal sealing seam 24.
  • the reclosable strip 30 another electrically non-conductive film or a comparable accumulation of material could also be provided in the upper region of the bag walls 12.1, 12.2.
  • the use of the reclosable strip 30 has the advantage that its two halves 30.1, 30.2 can be guided from a roll over a common device between the V-shaped composite film.
  • the two halves 30.1, 30.2 can be fed together in the clamped state.
  • the supply via the holding plate 40 ensures that the height of the two halves can not only be positioned exactly at the same height with respect to one another but also with respect to the bag walls and then welded on.
  • An additional advantage of the reclosable strip is its increased clamping area.
  • the resulting forced spreading of the two upper bag edges 20 increases the protection against contact between the connecting lugs 18 and the bag edge 20.
  • FIG. 6 there is a flat bag 12, the two bag walls 12.1, 12.2 are covered by an upper cap 70.
  • This cap 70 like the resealable strip 30, is made of an electrically non-conductive material.
  • This cap 70 lies with its inner material strip 70.1 on the inside of the respective bag wall 12.1 or 12.2 and with its outer material strip 70.2 from the outside against the relevant bag wall 12.1 or 12.2.
  • each cap 70 covers the upper edge of the bag 20 of the relevant bag wall 12.1 or 12.2.
  • the tabs 18 protruding from the flat bag 12 between the two caps 70 are thereby insulated from the upper bag edge 20 of the two bag walls 12.1, 12.2. It is also possible to bend the flags 18 by 90 ° or 180 ° (degrees) without risk.
  • the upper longitudinal sealing seam 24 can also be provided in the region of the two caps 70. The outer strips of material 70.2 would then align with the bag wall
  • the two legs 84, 86 of the U-shaped cap 80 have been welded to the inside of the two bag walls 12.1, 12.2.
  • the web 82 of the cap is cut off, so that there is then an opening for filling the bag.
  • additional material layers are present on the bag walls.
  • These material layers can be parts of a reclosable strip 30 or a cap 70, 80, for example.
  • the material layers can also be produced by coating the bag walls 12.1, 12.2.
  • the cap 70 shown as an example in FIG. 6 would then more or less only be present with a cover-shaped material strip 70.3. It remains important in all embodiments that an electrically non-conductive, insulating material is positioned between the electrically conductive upper edge of the bag 20 and the electrical tabs 18.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Composite Materials (AREA)
  • Inorganic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

Cette invention concerne un procédé de réalisation d'une batterie (10) contenant des cellules électrochimiques, se caractérisant par le fait qu'une couche électriquement isolante (30) ou un revêtement similaire sont déposés sur la partie superficielle (26) de chacune des parties de boîtier (12.1, 12.2) entre lesquelles les cosses d'anode et de cathode (18) dépassent du boîtier (12) de batterie, de sorte que ladite couche isolante (30) est présente au moins dans les zones des cosses (18) et qu'elle dépasse et/ou qu'elle enveloppe le bord superficiel (20) de la partie de boîtier (12.1, 12.2) à laquelle elle est fixée.
EP00922425A 1999-03-10 2000-03-09 Batterie contenant des cellules electrochimiques et son procede de realisation Withdrawn EP1166374A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19910433 1999-03-10
DE19910433A DE19910433A1 (de) 1999-03-10 1999-03-10 Elektrochemische Zellen enthaltende Batterie und Verfahren zur Herstellung derselben
PCT/DE2000/000709 WO2000054347A1 (fr) 1999-03-10 2000-03-09 Batterie contenant des cellules electrochimiques et son procede de realisation

Publications (1)

Publication Number Publication Date
EP1166374A1 true EP1166374A1 (fr) 2002-01-02

Family

ID=7900304

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00922425A Withdrawn EP1166374A1 (fr) 1999-03-10 2000-03-09 Batterie contenant des cellules electrochimiques et son procede de realisation

Country Status (6)

Country Link
US (1) US20020022177A1 (fr)
EP (1) EP1166374A1 (fr)
JP (1) JP2002539582A (fr)
KR (1) KR20010102520A (fr)
DE (2) DE19910433A1 (fr)
WO (1) WO2000054347A1 (fr)

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DE102008039043A1 (de) * 2008-08-21 2010-02-25 Behr Gmbh & Co. Kg Zellgehäuse für ein galvanisches Element
TWI452754B (zh) * 2008-10-31 2014-09-11 Fih Hong Kong Ltd 電池承載裝置及具有該電池承載裝置之電子裝置
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US20020022177A1 (en) 2002-02-21
WO2000054347A1 (fr) 2000-09-14
DE19910433A1 (de) 2000-09-14
JP2002539582A (ja) 2002-11-19
KR20010102520A (ko) 2001-11-15
DE29917812U1 (de) 2000-03-09

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