Classifications

• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
  • H01M10/00—Secondary cells; Manufacture thereof
  • H01M10/04—Construction or manufacture in general
  • H01M10/0486—Frames for plates or membranes
• • 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
  • H01M50/10—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
  • H01M50/20—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
  • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
  • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
  • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
• • 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
  • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
  • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
• • 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
  • H01M50/548—Terminals characterised by the disposition of the terminals on the cells on opposite sides 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
  • H01M50/547—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
  • H01M50/557—Plate-shaped terminals
• • 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
  • H01M50/117—Inorganic material
  • H01M50/119—Metals
• • 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
  • H01M50/126—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers
  • H01M50/129—Primary casings; Jackets or wrappings characterised by the material having a layered structure comprising three or more layers with two or more layers of only organic material
• • 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
  • 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 present invention relates to a galvanic cell, comprising a frame and a method for its production.
• a galvanic cell comprising a frame and a method for its production.
• flat and rectangular cells battery cells, capacitors, etc.
• electrochemically active content of a film-like packaging such as a thin
• Such constructed battery cells are also called pouch or as
• individual galvanic cells are connected in series and / or in parallel and are often in an enclosure with associated electronics. Because of the often not very high mechanical load capacity of the pouch cells welded into a foil, they often can not be inserted directly into the pouch
• Battery housing to be installed, but must first be mechanically stabilized by suitable support structures.
• the present invention has for its object to facilitate the application and the treatment of galvanic cells and to mitigate the problems associated with the sensitivity of their packaging film problems or possible to solve. This object is achieved by a product or a method according to one of the independent claims.
• a frame is provided for a galvanic cell.
• the cell consists essentially of an electrode stack and a foil-like packaging from the at least two arresters are led out.
• the frame is designed so that it can be firmly connected to the packaging of the cell in the manufacture of the cell.
• a frame is firmly connected to the packaging when the packaging is closed.
• electrode stack is used to designate the electrochemically active contents of a galvanic cell of any type.
• packaging of a cell is understood to mean the material which does not participate in the electrochemical reaction and which has the
• a framework within the meaning of the present invention should be understood to mean any constructional device which is suitable for mechanically stabilizing the cell against environmental influences and which can be firmly connected to the packaging of the cell during the production of the cell.
• a frame is preferably a substantially frame-shaped device, the function of which is essentially to impart mechanical stability to a galvanic cell.
• Fig. 1 is a view of an embodiment of an inventive
• Fig. 2 is a view of the same embodiment from behind;
• Fig. 3 is an exploded view of this cell from the front and
• Figure 4 is an exploded view of this cell from behind.
• Fig. 5 shows an embodiment of the invention in which the frame is welded to the outwardly extended inside of the packaging film
• Fig. 6 shows an embodiment of the invention in which the frame is welded to the outside of the packaging film in the region of the seal of the two films;
• Fig. 7 shows the basic structure of a typical packaging film
• Fig. 8 shows the structure of a cell block of galvanic cells after a
• FIG. 9 is a view of a galvanic cell according to a
• Embodiment of the present invention with a frame with holes for a tie rod and arresters, which partially around the
• Fig. 10 is an exploded view of the cell shown in Fig. 9;
• Fig. 11 is a view of a cell block of individual cells, wherein the
• Fig. 12 is a sectional view of the cell block shown in Fig. 11;
• FIG. 13 shows the view of a cell according to the invention after another
• Fig. 14 is an exploded view of the cell shown in Fig. 13;
• Fig. 15 is another exploded view of this cell; 16 shows various sectional views through a galvanic cell according to an embodiment of the invention and a Sch ⁇ itt Adjustsskizze.
• 17 is a sectional view through a cell after a
• Embodiment of the invention with an enlargement of the frame area
• FIG. 18 shows a cell block made of cells according to FIG. 13;
• Fig. 19 is a Thomas enclosuresskizze to explain the cutting guide in the
• FIG. 20 shows a sectional view through the cell block illustrated in FIG. 18;
• FIG. 21 shows an enlarged detail of the illustration in FIG. 20;
• Figure 23 is a schematic representation of the welding of a pouch cell with a frame according to an embodiment of the invention, in which the connection of the outside of the packaging film of the cell with the frame is carried out simultaneously with closure of the cell.
• Fig. 24 is a schematic representation of the welding of a pouch cell with a frame according to an embodiment of the invention, in which the connection of the inside of the packaging film of Take the frame after the cell has already been welded shut;
• Fig. 25 is a schematic representation of the welding of a pouch cell with a frame according to an embodiment of the invention, in which the connection of the outside of the packaging film of
• Fig. 26b is an enlarged detail of Fig. 26a;
• FIG. 27 shows a section through the frame region of FIG. 26a
• Fig. 28 is an exploded view of that shown in Fig. 26a
• FIG. 29a shows a representation of the embodiment shown in FIG. 26a with a hatched representation of the joining surface to the frame;
• FIG. 29b shows an enlarged detail of FIG. 29a;
• FIG. 30a shows the result of the welding shown in FIG
• FIG. 30b shows a detail enlargement of FIG. 30a
• Fig. 31 is a section through the frame portion of the in Fig. 30a
• Fig. 32 is an exploded view of that shown in Fig. 26a
• FIG. 33 a shows a representation of the embodiment shown in FIG. 30 a with a hatched representation of the joining surface to the frame;
• Fig. 33b is a partial enlargement of Figure 33a.
• the invention is based on a galvanic cell, which consists essentially of an electrode stack with a foil-like packaging, from which at least two arresters are led out.
• a galvanic cell is stabilized according to the invention by a frame which is designed so that it can be firmly connected to the packaging of the cell in the manufacture of the cell.
• the galvanic cells are stabilized not only when installed in a battery by a connection then to be produced with a frame or a frame, but that the cell before installation in a cell block by the frame according to the invention is stabilized.
• the inventive method, according to which the frame is already connected when closing the package with the cell has the further advantage that the cell already in the further manufacturing process, ie in their filling, in the formation, the aging ("aging") or the so-called “Grading” is already protected against mechanical influences.
• cohesive processes such as, for example, bonding or similar processes are suitable for producing the frame connection of the cell according to the invention.
• the frame can also be connected by a hot pressing or heat sealing, which is preferably carried out by partial melting of a thermoplastic layer located between the joining partners with subsequent cooling under pressure, with the packaging film, which is often provided anyway with a corresponding coating suitable for this purpose ,
• thermoplastic melt layers of packaging materials eg.
• Heat sealing is an important method of welding films in packaging technology. Essentially one differentiates between the following two variants: a) sealing with heating rod or heating ruler between sealing jaws, also as
• a preferably movable sealing jaw carries a heated rod.
• a preferably fixed lower sealing jaw is often equipped with a surface of elastic material to compensate for unevenness in the sealed seam. Sealing elements of this type are used in many commercially available machines for the production and closing of bags and in form, fill and seal machines.
• the heating rods In the case of very long sealing seams, the heating rods often have to be worked extremely accurately and without any deviation in order to ensure uniform pressure over the entire sealing surface. To achieve clean sealing seams, the films are often before using the sealing tool with the help of Stretching devices laid flat. Another possibility is the use of heating rods with saw-like sealing surface, but then there is a risk of hole formation.
• the welding is performed by a short burst. Compared to the hot bar seals, the time of exposure to heat is shorter and the
• the sealing surface of the tool may still be covered by a thin, insulating film of heat-resistant material to prevent sticking of the sealed material.
• connection to the frame can be made on the inside of the packaging film, which is often coated with polypropylene.
• Fig. 5 shows such a connection of the frame with the inside of the packaging film.
• Such an embodiment of the invention is shown in FIG.
• the frame with corresponding shaping elements, such as e.g. Noses or countersinks to be provided which are arranged on, for example, two sides of the frame so that the corresponding form elements can fit into each other fitting and so the assembly of the cell block by a promotion of
• corresponding shaping elements such as e.g. Noses or countersinks to be provided which are arranged on, for example, two sides of the frame so that the corresponding form elements can fit into each other fitting and so the assembly of the cell block by a promotion of
• the frames of the invention may be provided at suitable locations preferably with holes or other openings, can be introduced through the tie rods that hold the cell block together.
• Figures 1 to 4 show a preferred embodiment of the invention, in which the frame is preferably made of plastic and connected to the inside of the packaging film via a hot pressing.
• the connected to the frame half of the packaging film is in this embodiment over the other half circumferentially over, as shown in Fig. 5.
• Fig. 1 shows a three-dimensional view of a cell after this
• Embodiment with an integrated frame 102 with the
• Packaging of the cell 103 is connected. Out of the packaging they protrude Arrester 101 of the cell.
• Fig. 2 shows the same cell from the other side.
• reference numerals 201, 202 and 203 designate the trap, the frame and the package of the cell.
• An exploded view of this cell with integrated frame is shown in FIG. 3.
• the cell stack 301, to which the cell head is electrically connected with its two electrode bundles 304, 305, and to which the arresters 302, 303 are attached, is entrained by a packaging foil from both sides Parts 306 and 307 closed, the
• FIG. 4 A corresponding exploded view from the other side is shown in FIG. 4.
• FIG. 7 The basic structure of a typical packaging film for galvanic cells is shown in FIG. 7.
• An aluminum foil 702 is coated on one side with a polyamide 701 and on the other side with a polypropylene 703.
• Other films with other materials, layers or coatings are of course possible.
• FIG. 8 A preferred embodiment of a cell block of integrated frame galvanic cells according to the present invention is shown in FIG. 8.
• a complete cell block 801 is constructed by being under construction
• Cell block 802 further cells, e.g. the cell with frame provided with the reference numeral 803 is added.
• the cell 803 consists of the actual cell 804 with arresters 805, 806 frictionally with a
• Frame 807 is connected.
• tie rods 808, 809, 810 and 811 are passed through corresponding holes in the frame.
• the frames are designed to be provided with structures such as tabs or grooves that provide centering or alignment of the cells facilitate, then the passage of the tie rods through the holes is greatly facilitated.
• the arresters are designed to be provided with structures such as tabs or grooves that provide centering or alignment of the cells facilitate, then the passage of the tie rods through the holes is greatly facilitated.
• FIG. 9 shows a detailed illustration of such a cell with arresters wrapped around the frames.
• the cell 901 has an arrester 904 wrapped around the frame 902.
• the frame is with a hole 903 to
• Fig. 10 shows the same cell in an exploded view. Unlike shown in the figure, the arrester 1004 is bent around the frame only after attaching the frame 1002.
• Fig. 11 shows a cell block of galvanic cells of this embodiment.
• Fig. 12 is a sectional view of the cell block shown in Fig. 11; Attached to the cell head 1202 of a cell 1201 is an arrestor 1204, which is bent around the frame 1205 and electrically contacted with an arrester of the adjacent cell. The opposite arrester of the cell 1201 is not bent around the frame 1205 and therefore electrically insulated from the adjacent cell arrester 1206, which in turn electrically contacts a surge arrester of the next adjacent cell. In this way, it is possible to achieve a proper electrical connection of the arrester during cell block construction practically without further aids.
• the arresters 1304 of the cell 1301 are led out of the packaging parallel to the weld and contacted non-positively.
• the frame 1302 has a bore 1303 for the passage of a tie rod.
• FIG. 14 Exploded view of this embodiment is shown in FIG. 14.
• the packaging of the cell 1401 has at its corners special surfaces 1405 corresponding to a
• Hot pressing with the frame 1402 are suitable.
• the arresters 1404 of the cell are in this case placed so that a proper contacting takes place automatically.
• the packaging corners of the cell may also have holes 1406 be provided for performing a tie rod, which are placed congruent with corresponding openings 1403 in the frame 1402. An exploded view of this embodiment is shown in FIG.
• Electrode stack 1501 with arresters 1502, 1503 is between a top 1506 of the package, a frame 1508 and a bottom 1507 of
• Packaging included. Upper part and lower part of the packaging are equipped with mold elements shown in Fig. 15, which support an automatic intended contact with the arrester.
• FIG. 16 shows three different cutting guides 16a, 16b and 16c through a galvanic cell shown in the lower part of FIG. 16a shows the section along the line 1907
• FIG. 16b shows the section along the line 1906
• FIG. 16c shows the section along the line 1905
• FIG. 16a shows the cell stack 1601 the cell heads 1602 and 1603
• Fig. 16b shows the aperture 1605 through the frame 1604
• Fig. 16c shows the section through the cell perpendicular to Fig. 16a.
• Fig. 17 shows an enlarged sectional view of the frame portion of this embodiment of the invention. Shown are the frame 1704 which is connected to both parts of the packaging film 702, 703 of the cell 701.
• Fig. 18 shows a cell stack of cells according to this embodiment of the invention.
• Fig. 20 shows a section through the cell block with the cut shown in the upper part of Fig. 19.
• FIG. 19 shows an enlargement of a section from this sectional view, in which it can be seen more clearly than in FIG. 20 that in this embodiment of the invention the space is used somewhat more efficiently.
• the arrester 2107 which electrically contacts the arrester 2108 of the adjacent cell, a nearly column-free structure of the cell block is made possible. Recognizable are the cell stack 2104, the
• the frame and the packaging preferably the
• Packaging film superimposed and pressed together, for example by heatable stamp or seal bar, i. preferably heat-sealed together by the action of external forces or otherwise connected in a materially cohesive manner.
• the frame is preferably also made of a thermoplastic material, for example, at the joint.
• Thermoplastics also known as plastomers, are plastics that can be thermally deformed within a certain temperature range. This deformation can often be reversed, i. it can be repeated by re-heating, for example, to the molten state after cooling, as long as thermal decomposition of the material does not start as a result of overheating. In this capacity
• thermoplastics differ from so-called thermosets or elastomers. Another characteristic of thermoplastics is the weldability of these materials.
• Thermoplastics can be welded under the influence of heat and pressure.
• the materials to be welded are heated beyond their melting temperature and brought into a flowable state.
• the cooling of these materials can preferably be accelerated by an actively coolable sealing bar or an actively coolable stamp.
• actively coolable punches are described, for example, in US Pat. No. 4,145,485.
• the punches described in this document can only be cooled in a subarea in which the electrochemically active parts of the cell in the process of
• stamps or sealing bars described in this publication are not coolable in the area where heating takes place during heat sealing.
• the present invention provides according to one embodiment, for example, to heat the sealing bars with hot air and to cool for example with cool or cooled air.
• a temporally successive injection of hot or cold air into cooling channels in the stamp or seal bar can be a rapid time sequence of temperatures in the stamps or
• Heat transfer agents such as water or other fluids, which are particularly suitable for heat transfer can be used.
• temporally successive heating and subsequent cooling of individual points of a tool used for heat sealing can also be combined according to an embodiment of the invention with the described in US 4,145,485 permanent cooling in the area of the flat galvanic cell for the purpose of the electrochemically active parts of the cell to protect against overheating.
• Frame is preferably carried out exclusively under the action of heat and external pressure forces without further additives.
• the connection of the film to the frame may preferably be made on the inside 703, 2309, 2310, 2409, 2410, 2509, 2510 of the packaging film, often with polypropylene is coated.
• one side of the packaging film protrudes for this purpose - for example as shown in FIGS. 24 or 25.
• the outside 701, 2308, 2311, 2408, 2411, 2508, 2511 of the packaging film for connection to the frame, which is often coated with polyamide.
• the outside 701, 2308, 2311, 2408, 2411, 2508, 2511 of the wrapping film is also polypropylene or other
• Heat sealing process forms a material connection with the frame.
• this will be done in a single step, in which simultaneously the different parts of the packaging film with each other and these are materially connected to the frame.
• the frame with lugs, countersinks or recesses or other
• Fig. 22 shows a schematic representation of the welding of
• the packaging film preferably consists of a middle layer 2203, 2204, which preferably consists of aluminum foil, and two outer layers 2208, 2209, 2210, 2211, which preferably consist of polyamide 2208, 2211 or preferably of polypropylene 2209, 2210.
• the polypropylene is partially melted by the action of heat, whereby the cohesive connection of the two parts of the cell package is carried out.
• Fig. 23 shows schematically an embodiment of the
• the sealing bars or punches 2301, 2302 compress the two sheets of the packaging film 2308, 2309, 2303, 2304, 2310, 2311 by means of the pressing forces 2305, 2306 and under heat and also press the frame 2312 against the outside 2311 of FIG
• Packaging film Under the action of the compressive forces and heat takes place in the joining zone 2307 between the two sheets of the packaging film and the joining zone 2313 between the packaging film and the frame a partial melting of the thermoplastic materials located there, resulting in a cohesive connection between the leaves of the packaging film on the one hand and between a sheet of packaging film and the frame on the other hand leads in one step. Instead of a heated one
• Sealing bar 2302 on the side of the frame can also be a simpler
• the two sheets 2403, 2404 of the packaging film are welded in a first step on their insides 2409, 2410 or onto others
• the cohesive connection with the frame 2412 preferably by Heat sealing using sealing bars 2401, 2402, which, using external forces 2405, 2406 and heat, compress inner layer 2409 of the overhanging sheet of the cell wrapping film against frame 2412 and layer 2409 in joining zone 2413, preferably by partial melting Thermoplastic materials welded to the frame 2412 or otherwise bonded cohesively.
• FIG. 24 is a combination of the exemplary embodiments illustrated in FIGS. 23 and 24.
• the coating 2411 of the packaging film 2404 is likewise adhesively bonded to the frame in the joining zone between the layer 2411 and the frame 2412 below the joining zone 2407. This is another mechanical stabilization of the galvanic cell using the
• Fig. 25 shows schematically a further embodiment of the invention, in which the lower sheet 2504 of the packaging film over the upper sheet 2503 and has been connected in a first step with this upper worksheet materially.
• the cohesive in a similar manner as in the previous embodiments, the cohesive
• this embodiment can be combined again with the embodiment shown in Fig. 23 in a manner not shown here in the figures, wherein a cohesive connection in a below the joining zone 2517 lying further joining zone can be achieved.
• FIG. 26 a shows a galvanic cell 2601 and an enlarged detail 2602 in FIG. 26 b. Visible is the welding of the inside of the protruding
• Packaging film 2604 with the frame 2605 and the edge 2603 in the package which comes about through the supernatant of the upper packaging film on the lower packaging film.
• Fig. 27 shows a sectional view in the frame area of this
• Joining zone 2707 below the lower sheet of the film 2710, 2711 present a material connection with the frame, wherein this is preferably done by a combination in Figures 23 and 24 embodiments shown.
• Fig. 28 schematically shows an exploded view of this
• the frame 2802 has particular structural elements 2805, for example in the form of
• FIG. 29a shows an oblique view of the rear side of a galvanic cell according to this exemplary embodiment, in which the joining surface to the frame is hatched.
• FIG. 29b shows an enlarged detail of the lower corner of this galvanic cell 2901 with the joining surfaces shown hatched 2905, 2906, 2907 to the frame.
• the arresters 2903, 29094 of this cell 2901 protrude partially out of the packaging film 2902.
• FIG. 30 a shows the result of that illustrated in FIG. 24
• Fig. 31 is a sectional view in the frame portion of the embodiment shown in Figs. 30a and 30b.
• the two sheets of the packaging film with the inner or outer layers 3108, 3109 or 3110, 3111 of the galvanic cell 3101 are connected to one another in the joining zone 3107, preferably heat-sealed.
• the sheet with the layers 3108, 3109 protrudes beyond the other sheet and is connected to the frame 3112 in the joining zone 3113.
• FIG. 32 shows an exploded view of this embodiment with the galvanic cell 3201, its arresters 3203, 3204, partially
• FIG. 33 a shows an oblique representation of this exemplary embodiment, in which the joining surface to the frame is hatched.
• 33b shows an enlarged detail of the lower corner of the galvanic cell 3301 shown in FIG. 33A, the arresters 3303, 3304, the packaging film 3302 and the protruding edges of the packaging film 3305, which is shown hatched in its joining zone 3306, 3307.

Landscapes

• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Electrochemistry (AREA)
• General Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Inorganic Chemistry (AREA)
• Sealing Battery Cases Or Jackets (AREA)
• Battery Mounting, Suspending (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=43034189

Family Applications (1)

Country Status (8)

Families Citing this family (10)

Citations (1)

Family Cites Families (11)

• 2009
  • 2009-08-17 DE DE102009037726A patent/DE102009037726A1/de not_active Withdrawn
• 2010
  • 2010-07-29 BR BR112012002771A patent/BR112012002771A2/pt not_active IP Right Cessation
  • 2010-07-29 US US13/390,544 patent/US20120214055A1/en not_active Abandoned
  • 2010-07-29 JP JP2012525060A patent/JP2013502672A/ja active Pending
  • 2010-07-29 KR KR1020127004278A patent/KR20120083287A/ko not_active Application Discontinuation
  • 2010-07-29 CN CN2010800362712A patent/CN102484223A/zh active Pending
  • 2010-07-29 WO PCT/EP2010/004649 patent/WO2011020546A1/de active Application Filing
  • 2010-07-29 EP EP10744507A patent/EP2467885A1/de not_active Withdrawn

Patent Citations (1)

Also Published As

Similar Documents

Legal Events