WO2022135781A1 - Matériau de masquage pour piles bouton métal-air électrochimiques et unités d'emballage comprenant des piles bouton métal-air - Google Patents

Matériau de masquage pour piles bouton métal-air électrochimiques et unités d'emballage comprenant des piles bouton métal-air Download PDF

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Publication number
WO2022135781A1
WO2022135781A1 PCT/EP2021/080988 EP2021080988W WO2022135781A1 WO 2022135781 A1 WO2022135781 A1 WO 2022135781A1 EP 2021080988 W EP2021080988 W EP 2021080988W WO 2022135781 A1 WO2022135781 A1 WO 2022135781A1
Authority
WO
WIPO (PCT)
Prior art keywords
metal
section
air
air button
button cells
Prior art date
Application number
PCT/EP2021/080988
Other languages
German (de)
English (en)
Inventor
Torsten Schmerer
Anja Clemens
Original Assignee
Varta Microbattery 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 Varta Microbattery Gmbh filed Critical Varta Microbattery Gmbh
Publication of WO2022135781A1 publication Critical patent/WO2022135781A1/fr

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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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
    • H01M50/109—Primary casings; Jackets or wrappings characterised by their shape or physical structure of button or coin shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M12/00—Hybrid cells; Manufacture thereof
    • H01M12/04—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type
    • H01M12/06—Hybrid cells; Manufacture thereof composed of a half-cell of the fuel-cell type and of a half-cell of the primary-cell type with one metallic and one gaseous electrode
    • 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
    • H01M50/147—Lids or covers
    • H01M50/148—Lids or covers characterised by their shape
    • H01M50/153—Lids or covers characterised by their shape for button or coin 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
    • H01M50/10—Primary casings; Jackets or wrappings
    • H01M50/183—Sealing members
    • H01M50/184—Sealing members characterised by their shape or 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
    • H01M50/216—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for button or coin 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
    • B65D73/00—Packages comprising articles attached to cards, sheets or webs
    • B65D73/0042—Packages comprising articles attached to cards, sheets or webs the articles being retained within a window, hole or other cut-out portion of a single card
    • B65D73/005—Packages comprising articles attached to cards, sheets or webs the articles being retained within a window, hole or other cut-out portion of a single card by means of separate fixing elements, e.g. clips, clamps, bands
    • B65D73/0057—Packages comprising articles attached to cards, sheets or webs the articles being retained within a window, hole or other cut-out portion of a single card by means of separate fixing elements, e.g. clips, clamps, bands by means of a preformed enclosure, e.g. a bulb
    • 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
    • H01M50/183—Sealing members
    • H01M50/19—Sealing members characterised by the material
    • H01M50/198—Sealing members characterised by the material characterised by physical properties, e.g. adhesiveness or hardness
    • 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

Definitions

  • the present invention relates to a masking tape for electrochemical metal-air button cells, which is provided to cover air passage openings in the cells, and a packaging unit for metal-air button cells.
  • Very small energy storage cells are used for various applications to supply devices with energy.
  • miniaturized zinc-air cells is widespread for hearing aids.
  • Such miniature cells are usually in the form of a button cell and are usually only a few millimeters in diameter.
  • the diameter of zinc-air button cells for hearing aids ranges between 5 mm and 10 mm.
  • Metal-air cells generally include a metal-based anode and an air cathode (often also referred to as a gas diffusion cathode) and an ion-conductive electrolyte as the electrochemical active components.
  • a metal-based anode and an air cathode (often also referred to as a gas diffusion cathode) and an ion-conductive electrolyte as the electrochemical active components.
  • oxygen is reduced at the air cathode while taking up electrons. This results in hydroxide ions, which migrate to the anode via the electrolyte.
  • the metal of the anode is oxidized with the release of electrons.
  • the metal ions formed react with the hydroxide ions.
  • the zinc-air cells already mentioned contain zinc in the anode.
  • Button cells usually have a liquid-tight sealed housing made of a cup-shaped cell cup, a cup-shaped cell cover and a seal in between.
  • the bottom of the cell cup and the bottom of the cell lid are often circular or oval in shape.
  • Cell cups and cell covers are usually made of metallic materials such as nickel-plated steel or sheet metal.
  • the cell cup and the cell cover can be made, for example, from nickel-plated deep-drawn sheet metal as stamped parts.
  • the cell cup has positive polarity and the cell cover has negative polarity.
  • the liquid-tight closure of such cells is often achieved by beading the edge of the cell cup.
  • Metal-air cells have a relatively high energy density because the oxygen requirement at the cathode can be covered by atmospheric oxygen from the environment. Accordingly, measures are required to supply oxygen from the ambient air to the cathode during the discharging process.
  • one or more air passage openings are provided in the housing of metal-air cells, in the case of button cells in particular in the area of the bottom of the cell cup, which openings can be produced, for example, by stamping.
  • the air passage openings remain covered until immediately before the metal-air cells are used, for example until immediately before the cells are inserted into a hearing aid, in order to prevent the ingress of oxygen and also the drying out of the cell or the ingress of atmospheric moisture impede.
  • So-called adhesive tapes are used for this purpose, which are often designed in the manner of a film.
  • these masking tapes must generally be removed by hand in order to allow oxygen to penetrate into the metal-air cell, so that the energy storage cells can be activated and put into operation by removing the masking tape.
  • WO 02/33774 A2 describes a zinc-air cell in the form of a miniature button cell that can be used for hearing aids.
  • a tape in an elongated oval shape is provided.
  • the tape has a stiffened, extended area that forms a kind of handle for removing the tape from the cell.
  • metal-air cells and in particular zinc-air cells
  • blister packs typically consist of a thermoformed or otherwise formed dimensionally stable plastic film attached to a cardboard card.
  • a blister can have, for example, several compartments formed by the plastic film, each of which contains an individually attached energy storage cell.
  • dispenser packaging are already known in order to facilitate the removal of metal-air cells, in particular miniaturized cells, from a packaging.
  • the packaging can include what is known as a rotating link, which can be rotated and which carries the individual energy storage cells in a circular arrangement. By turning the disk, individual energy storage cells can be brought into the area of a removal opening, so that removal is facilitated.
  • Such packaging is known, for example, from WO 01/87732 A1 and EP 1325876 B1.
  • WO 2015/191166 A1 relates to a dispenser for miniaturized products, in particular for miniature batteries.
  • the miniature batteries have an adhesive tab with an opening.
  • a product carrier component carries a plurality of the miniaturized products.
  • a hook component is also provided which is movable relative to the product carrier component.
  • a hook of the hook component is engageable in the opening of the tab so that the tab can be removed from a single product.
  • the product carrier component has a plurality of passages through which the tabs pass individually, so that the openings of the tabs are positioned on an opposite side of the product carrier component and are thus accessible for the hook of the hook component.
  • the object of the invention is to make the provision of metal-air button cells particularly user-friendly.
  • a packaging unit is to be provided with which the metal-air button cells can be packaged in a space-saving manner, are easy to remove and easy to activate. It should also be possible to remove the adhesive tape from the metal-air button cells in a particularly simple manner.
  • a masking tape for an electrochemical metal-air button cell Preferred embodiments of this masking tape are the subject matter of the claims dependent on claim 1. Furthermore, the object is achieved by a packaging unit that results from the further independent claim. A preferred embodiment of this packaging unit is the subject of a further dependent claim.
  • the adhesive tape according to the invention for an electrochemical metal-air button cell is intended for covering air passage openings of the metal-air button cell.
  • the sticker always points the following characteristics a. until d. on: a.
  • the masking tape comprises a flat material, in particular a flexible film material, with an upper side and an underside; and b. the tab has an elongate shape and is longitudinally divided into a first portion and a second portion, the first portion (11) comprising a first longitudinal end and the second portion comprising a second longitudinal end of the tab; and c. the first section is designed to cover the air passage openings of the metal-air button cell and is provided with an adhesive layer at least in regions for this purpose; and d. the second section is formed as a tab for peeling the adhesive tape off the metal-air button cell.
  • the masking is particularly characterized by the following feature e. marked: e. At least in a partial area, the second section has a shape that tapers towards the second longitudinal end.
  • the second longitudinal end of the adhesive tape is designed as a point, preferably as a rounded point. It is further preferred that the tapering area extends to the point, in particular to the rounded point. In preferred embodiments, the tapered portion and the second longitudinal end of the tab together form a point, preferably a rounded point.
  • a taper is to be understood as meaning that the width of the adhesive tape decreases in the area of the taper in the direction of the second longitudinal end.
  • the tapering can be a linear or a non-linear tapering.
  • the distance between the longitudinal edges of the adhesive tape decreases continuously in the area of the taper, the longitudinal edges being straight in the area.
  • the distance between the longitudinal edges of the adhesive tape decreases discontinuously in the area of the taper.
  • the edges can have a convex course in the area, for example.
  • the tapering shape of the tape towards the tip has the particular advantage that this form allows a very space-saving arrangement of individual metal-air button cells in a packaging or sales unit.
  • the individual metal-air button cells can be arranged in a circle so that the adhesive tape of the metal-air button cells with the end area, which is designed as a tab for removing the adhesive tape, point to the center of this circular arrangement.
  • the tapered shape of this end of the tab allows the metal-air button cells to be placed in a relatively small space and the inward ends of the tab do not overlap.
  • the metal-air button cells with the stickers can therefore be inserted into the packaging unit in a very space-saving manner.
  • the width of the adhesive tape not only decreases in the area of the taper in the direction of the second longitudinal end, but that the taper extends continuously up to the tip.
  • the masking tape is mirror-symmetrical, it being preferred that its longitudinal axis is the mirror axis.
  • the longitudinal edges of the adhesive tape in the area of the taper preferably enclose an angle in the range from 20 to 90°, in particular in the range from 30 to 60°. This angle is also known as the taper angle.
  • the tapering angle can be selected such that it results from a division of 360° by the number of metal-air button cells to be arranged in a packaging unit.
  • a taper angle of 36° is particularly suitable for a circular array of ten metal-air button cells.
  • the draft angle is defined by the angle between two tangents passing through a common point in the mirror axis and a point on either edge.
  • the taper angle increases towards the second longitudinal end.
  • the dimensions of the adhesive tape are expediently adapted to the size of the metal-air button cell.
  • the length of the masking tape (distance between the two longitudinal ends) is preferably 1.5 to a factor s greater than the diameter of the metal/air button cell that is taped in each case.
  • the ratio between the length of the tab and the diameter of the metal-air button cell can be in the range of 1.5 to 2.5.
  • the length of the adhesive tape can, for example, be in a range between 12 and 22 mm in preferred embodiments.
  • the first section which is designed to cover the air passage openings of the metal-air button cell, preferably includes only that part of the adhesive tape that is required to cover the metal-air button cell.
  • the rest of the sticker belongs to the second section.
  • the second portion of the decal is free of an adhesive layer.
  • only the first section of the adhesive tape which is designed to cover the air passage openings of the metal-air button cell, is provided with an adhesive layer, and this is by no means mandatory over the entire surface.
  • the tab of the second section that is used to pull off the adhesive tape should be free of an adhesive layer. The user can thus grasp and pull off the second section with the fingers or, if necessary, with tweezers or the like, without the tab sticking to the fingers or the grasping tool.
  • Suitable adhesives for the first section of the masking tape are known to those skilled in the art.
  • suitable materials for the masking tape as such are also known to those skilled in the art.
  • various flexible sheet materials commonly used for metal-air cell masking may be employed.
  • Suitable film materials have a thickness in the range from 0.1 to 1 mm, for example.
  • the adhesive tape according to the invention is distinguished by the following directly additional feature a. from: a.
  • the second section of the adhesive tape has at least one opening, preferably exactly one opening.
  • the second section of the adhesive tape has one or, if appropriate, a plurality of holes, which can be introduced into the adhesive tape, for example by a punching or cutting process. It is particularly preferred if the second section of the adhesive tape has exactly one opening or hole.
  • the opening of the second section of the adhesive tape has the particular advantage that a particularly secure grip is thereby possible when the second section, which is designed as a tab, is gripped with the fingers of the user.
  • the second section which is designed as a tab
  • the tab can thus be fixed better, which makes handling easier.
  • the metal-air button cell can be gripped more easily via the adhesive tape, for example to be used in a hearing aid and to be able to peel off the adhesive tape better.
  • a perforation of the second section of the masking tape can also be helpful, for example, when handling with auxiliary devices, such as tweezers, for gripping the masking tape.
  • auxiliary devices such as tweezers
  • the masking tape is distinguished by at least one of the immediately following additional features a. until d. from: a.
  • the at least one opening has an area of ⁇ 50 mm 2 , preferably in the range from 2 mm 2 to 50 mm 2 .
  • the at least one aperture is circular;
  • the at least one aperture is oval; i.e. the at least one opening is angular, in particular triangular, with a tip of the triangular shape preferably being aligned in the direction of the tapering shape of the second section.
  • the area in the second section of the masking tape that is occupied by the opening is adapted overall to the dimensions of the masking tape.
  • the metal Air button cells of the invention are suitable for openings in the second section of the adhesive tape with an area of ⁇ 50 mm 2 , in particular ⁇ 30 mm 2 , preferably ⁇ 20 mm 2 .
  • the size should not be less than 5 mm 2 , preferably 10 mm 2 .
  • the surrounding areas of the opening are expediently designed in such a way that sufficient stability of the adhesive tape is ensured in this area and that, for example, the edge areas or webs surrounding the opening cannot easily tear.
  • an opening is provided in the second section of the masking tape, which is triangular in shape and thus corresponds to the tapering or tapering shape of this end of the masking tape.
  • webs of approximately equal width can be provided on both sides of the triangular shape, which runs towards the tip.
  • the angle of the triangular shape of the opening, which faces the end of the masking tape corresponds to the taper angle of the tapering shape of the second section of the masking tape.
  • approximately 36° can be provided both for the taper angle of the shape of the mask tapering towards the end and for the angle of the triangle that faces the end of the mask.
  • the triangular shape of the opening is also particularly advantageous for optical reasons, since a visually very appealing circular arrangement of the metal-air button cells in a packaging unit is possible with a sticker designed in this way.
  • the masking tape is distinguished by at least one of the immediately following additional features a. to c. from: a.
  • the second section comprises the partial area in which it has a shape that tapers towards the second longitudinal end as the first partial area, and also at least one further partial area in which it does not have a shape that tapers towards the second longitudinal end.
  • the section has a uniform width.
  • the at least one further partial area is arranged between the first section and the first partial area.
  • features a. immediately above. and c. in some embodiments also features a. immediately above. to c., realized in combination with each other.
  • the tab function for peeling off the masking tape can be improved by a further partial area.
  • This provides a larger attack surface for the user's fingers, for example.
  • this partial area is also free of an adhesive layer, so that when the masking tape is removed, the fingers of the user do not come into contact with an adhesive layer and the removed masking tape does not stick to the fingers.
  • the adhesive tape according to the invention is characterized by the immediately following additional feature a. marked: a.
  • the first section has a part-circular outer circumference.
  • the adhesive tape can be adapted in a particularly suitable manner to the cylindrical shape of the metal-air button cell to be covered by means of a part-circular outer circumference in the region of the first section of the adhesive tape.
  • the area of the first section corresponds approximately to the circular base area of the metal-air button cell to be taped. If necessary, the area of the first section can also be somewhat smaller or somewhat larger than the base area of the metal-air cell to be covered.
  • the invention further includes a packaging unit with a plurality of electrochemical metal-air button cells.
  • the metal-air cells are zinc-air button cells.
  • This packaging unit is characterized by the immediately following features a. to c. marked: a.
  • the metal-air cells are each provided with a masking tape as described above; and b. the metal-air cells are arranged in a circle in the packaging unit; and c. the second portions of the tapes, each having a tapered shape, are in direction aligned with the center of the circular array.
  • the advantages of the adhesive tape according to the invention in connection with a circular arrangement of the metal-air button cells within a packaging unit have already been explained above.
  • the adhesive tapes in the form according to the invention contribute significantly to the metal-air button cells being able to be provided in a packaging unit in a space-saving and practical manner and at the same time in a visually appealing manner. They are easy to remove. Furthermore, the peeling off of the adhesive tape and the associated activation of the metal-air button cells is possible in a very user-friendly manner.
  • the form of the adhesive tape according to the invention in combination with the space-saving arrangement in the packaging unit allows particularly good handling, particularly in the case of miniaturized metal-air button cells.
  • the metal-air button cells in the packaging unit are preferably arranged in such a way that the stickers lie in one plane and are not bent over. In this way, the stickers present themselves to the user in a way that enables them to be easily grasped, so that the metal-air cells can be easily removed, held and activated.
  • the packaging unit is characterized by at least one of the immediately following additional features a. and b. from: a.
  • the packaging unit comprises a rotary link arranged on a carrier, in particular made of transparent material, the rotary link having receptacles for the metal/air button cells; and b. the carrier has an opening for removing individual cells from the rotary link.
  • Dispenser packaging with such a rotary link are known, for example, from the documents WO 01/87732 A1 or EP 1325876 B1 mentioned at the outset.
  • FIG. 2 Top view of a packaging unit according to the invention with ten metal-air button cells.
  • FIG. 1 shows a top view of a masking tape 10 according to the invention, which is provided for covering air passage openings of a metal-air button cell, not shown here.
  • the mask
  • the adhesive tape 10 is provided for covering the air passage openings of a cylindrical button cell with a circular base.
  • the first section 11 is provided on its underside (not shown) with an adhesive layer, by means of which the adhesive tape 10 adheres to the metal-air button cell.
  • the second section 12 of the adhesive tape 10 is designed as a tab for removing the adhesive tape from the metal-air button cell.
  • the second section 12 in the partial region 121 has a shape that tapers towards the longitudinal end 14 of the adhesive tape 10 or, in other words, that tapers to a point.
  • the tapering shape is realized by the edges 13 enclosing a tapering angle and running towards one another in the direction of the longitudinal end 14 .
  • the width of the adhesive tape 11 decreases in the direction of the longitudinal end 14 in the partial area 121 .
  • the edges 13 are formed as straight lines within the sections indicated by the short graduations (dotted lines).
  • the tapering angle 15 between the edges 13 running towards one another is 36° in this exemplary embodiment.
  • the longitudinal end 14 is designed as a rounded tip.
  • An opening 16 in the form of a triangular hole is provided in the second section 12 and in particular in the tapering area 121 .
  • a user touches the tab formed by the second section 12, for example with a thumb and forefinger the fingers or the skin in the area of the opening 16, so that this prevents the tab from slipping out and overall the hold and handling of the adhesive tape 10 is improved.
  • the second section 12 comprises further sub-areas 171 and 172, which are arranged between the first section 11 and the sub-area 121.
  • the partial areas 171 and 172 lengthen the tab that is formed by the second section 12, so to speak.
  • the adhesive tape 10 has an essentially constant width in both partial areas, with the subsections 171 and 172 being characterized by a slightly different width.
  • the subsection 172 oriented in the direction of the tapered area 121 is slightly wider than the subsection 171, the width of the subsection 172 being less than the widest area of the first section 11.
  • the adhesive tape 10 has a mirror-symmetrical design, with its longitudinal axis being the mirror axis.
  • FIG. 2 shows a packaging unit 100 with a total of ten metal-air button cells, each of which is provided with an adhesive tape 10 .
  • the packaging unit 100 comprises a transparent, rotatable hood (not shown here) made of a transparent plastic film and arranged on a carrier made of cardboard or a comparable material.
  • the metal-air button cells are arranged between the carrier and the hood, with the hood having corresponding receptacles for the metal-air cells, so that the metal-air button cells are carried along when the hood is turned.
  • the individual metal-air cells are arranged in a circular shape with the second portions 12 of the tabs 10 facing inward. Due to the tapering shape of the adhesive tape 10 in this area, a particularly space-saving arrangement of the metal-air cells is possible, which at the same time is visually appealing.
  • the metal-air button cells are removed from the packaging unit 100 via the centrally located removal opening 101.
  • the packaging unit is provided with a perforation line 103, by means of which the lower portion of the packaging unit 100 with the metal-air cells from the upper portion of the Packaging unit 100 can be separated if necessary.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Hybrid Cells (AREA)
  • Adhesive Tapes (AREA)

Abstract

L'invention concerne un matériau de masquage (10) pour une pile bouton métal-air électrochimique qui est fourni pour la couverture des ouvertures de passage d'air dans la pile bouton métal-air. Ce matériau de masquage comprend un matériau bidimensionnel, en particulier un matériau de film souple, ayant un côté supérieur et un côté inférieur. Le matériau de masquage est sous forme allongée et est divisé dans la direction longitudinale en une première section (11) et une seconde section (12), la première section (11) comprenant une première extrémité longitudinale et la seconde section (12) comprenant une seconde extrémité longitudinale du matériau de masquage. La première section (11) est conçue pour recouvrir les ouvertures de passage d'air de la pile bouton métal-air, et à cet effet comporte une couche adhésive au moins dans certaines régions sur le côté inférieur. La seconde section (12) est conçue comme une languette pour tirer le matériau de masquage de la pile bouton métal-air. Il s'agit d'une caractéristique du matériau de masquage selon laquelle la seconde section (12) a une forme effilée vers la seconde extrémité longitudinale au moins dans une région partielle. De plus, la seconde section (12) comporte de préférence au moins une ouverture (16).
PCT/EP2021/080988 2020-12-22 2021-11-08 Matériau de masquage pour piles bouton métal-air électrochimiques et unités d'emballage comprenant des piles bouton métal-air WO2022135781A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020216495.9A DE102020216495B4 (de) 2020-12-22 2020-12-22 Abkleber für elektrochemische Metall-Luft-Knopfzellen und Verpackungseinheit mit Metall-Luft-Knopfzellen
DE102020216495.9 2020-12-22

Publications (1)

Publication Number Publication Date
WO2022135781A1 true WO2022135781A1 (fr) 2022-06-30

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PCT/EP2021/080988 WO2022135781A1 (fr) 2020-12-22 2021-11-08 Matériau de masquage pour piles bouton métal-air électrochimiques et unités d'emballage comprenant des piles bouton métal-air

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DE (1) DE102020216495B4 (fr)
WO (1) WO2022135781A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6039185A (en) * 1998-12-14 2000-03-21 Rayovac Corporation Hearing aid battery inserter
WO2001087732A1 (fr) 2000-05-15 2001-11-22 Eveready Battery Company, Inc. Distributeur de produits et son procede de fabrication
WO2002033774A2 (fr) 2000-10-19 2002-04-25 The Gillette Company Languette pour pile zinc/air
EP1325876B1 (fr) 2001-12-19 2005-02-09 VARTA Microbattery GmbH Conditionnement pour la vente et le stockage de piles zinc/air
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