WO2012062574A1 - Cellule de batterie, procédé de fabrication d'une cellule de batterie et utilisation d'une cellule de batterie - Google Patents

Cellule de batterie, procédé de fabrication d'une cellule de batterie et utilisation d'une cellule de batterie Download PDF

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Publication number
WO2012062574A1
WO2012062574A1 PCT/EP2011/068731 EP2011068731W WO2012062574A1 WO 2012062574 A1 WO2012062574 A1 WO 2012062574A1 EP 2011068731 W EP2011068731 W EP 2011068731W WO 2012062574 A1 WO2012062574 A1 WO 2012062574A1
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WO
WIPO (PCT)
Prior art keywords
cell
battery
battery cell
monitoring
flat
Prior art date
Application number
PCT/EP2011/068731
Other languages
German (de)
English (en)
Inventor
Hans-Peter Werner
Adrian Kautsky
Dietmar Vogt
Jürgen Wolf
Michael Schiemann
Original Assignee
Continental Automotive Gmbh
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Publication date
Application filed by Continental Automotive Gmbh filed Critical Continental Automotive Gmbh
Publication of WO2012062574A1 publication Critical patent/WO2012062574A1/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
    • H01M50/116—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
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • 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
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/486—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring temperature
    • 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
    • H01M50/117—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
    • H01M50/124—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
    • H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
    • H01M50/136—Flexibility or foldability
    • 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
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/569—Constructional details of current conducting connections for detecting conditions inside cells or batteries, e.g. details of voltage sensing 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/578—Devices or arrangements for the interruption of current in response to pressure
    • 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
    • H01M50/572—Means for preventing undesired use or discharge
    • H01M50/574—Devices or arrangements for the interruption of current
    • H01M50/581—Devices or arrangements for the interruption of current in response to temperature
    • 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

  • Battery cell method for producing a battery cell and use of a battery cell
  • the present invention relates to the field of electrical energy storage, in particular with regard to the production of an electric battery for an electric vehicle or hybrid vehicle (including “plug-in hybrid”) , and is based on a battery cell (eg, nickel battery).
  • a battery cell eg, nickel battery.
  • Metal hydride, nickel-cadmium, nickel-zinc or lithium-ion cell according to the preamble of claim 1 and a method for producing a battery cell according to the preamble of claim 8.
  • Such a battery cell is known from the prior art z. B. known as a "soft pack cell” and comprises an electrochemical ⁇ flat cell with peripherally projecting terminal ⁇ flags and the flat cell enclosing sheath of foil material, wherein the terminal lugs each protrude the umman ⁇ tion passing through the sheath.
  • flat cell is intended to denote any energy store of a flatly extended format which is suitable for producing an electric battery by electrical connection of a plurality of "battery cells” formed therefrom. It should not be Schlos ⁇ sen that a flat cell has an internal structure, which in turn is represented as an interconnection of multiple "single cell".
  • Applicant BASED concept for the production of a battery cell is, for example, form from two to four (paral lel-connected ⁇ ) individual cells, a flat cell and to produce the battery ⁇ cell by their sheathing of foil material.
  • a large number of battery cells generally have to be connected to one another in electrical series connection.
  • the battery cells are often also connected in parallel, so that from a single cell type a battery with multiple of the capacity of the single cell by parallel connection and a desired battery voltage (eg rated voltage or maximum voltage) can be achieved by series connection of these parallel-connected single cells ,
  • a desired battery voltage eg rated voltage or maximum voltage
  • an optimal system ⁇ design results in a maximum battery voltage, which is typically in the range of some 100 V, and a maximum current, which is typically in the range of about 50 to 300 A, in ei ⁇ nem short-term pulses but also about, and for extreme applications or for very short times can also reach about 1000 A.
  • a lithium-ion cell Depending on the battery cell type is a more or we ⁇ niger strict monitoring of operating parameters such. Cell voltage and cell current (charge or discharge current) and cell or battery temperature required. This is explained in more detail using the example of a lithium-ion cell. If, in the case of a lithium-ion cell, operating parameters leave their permissible range, the cell can overheat and thereby lead to a thermally unstable state in which the active materials release additional energy upon decay. so that thermal runaway can occur. As a result of the exothermic process, the cell or the battery formed from a plurality of such cells generates more and more energy that is released into the environment. If overheated, flammable organic electrolytes may ignite. Also a disintegration of the electrolyte and a gas formation are possible, so that the cell inflates. Depending on the structure of the active reaction ⁇ partner a lithium-ion battery is therefore more or less sensitive to overheating.
  • cathode materials in lithium-ion cells decompose at temperatures above 200 ° C. This z.
  • a nickel-cobalt-aluminum-based cathode material eg, LiNiCoA10 2
  • a cobalt oxide-based material L1C0O 2
  • Cathode materials based on manganese oxide eg.
  • LiNii / 3 Coi / 3 Mni / 3 O 2 or LiMnC> 2) or phosphate base eg.
  • LiFePC or LiMnPC show a relatively high stability.
  • the relatively high stability of even the delithiated Kris ⁇ tall Jardin means that when briefly overcharging the battery then hardly oxygen and excess lithium are free. Nevertheless, the organic electrolyte can burn.
  • monitoring electronics in particular the temperatures of one or more cells, the total voltage of the battery, the individual voltages of the cells as well as the charging or discharging current of a cell or of a cell can be determined. hen connection of cells are detected. Electronic circuits suitable for measuring these quantities are known per se and are housed together with the individual battery cells in a battery housing made of metal or plastic.
  • this object is achieved according to the invention in that in the casing of sheet material further comprises a surveil ⁇ monitoring electronics is arranged and the monitoring electronics electrically connected to the connection lugs of the flat cell is connected (for detecting the measured variables).
  • the use of the battery cell according to the invention in an electric battery makes a decisive contribution to reducing the complexity of the overall system.
  • the overall system can be constructed more flexibly. This can also significantly reduce costs.
  • the battery cell can in particular z. B. an approximately rectangle ⁇ ges, z. B. have about square format.
  • ⁇ be sitting the battery cell has a thickness in the range of about 3 to 40 mm, for example in the range of 5 to 15 mm.
  • the terminal lugs of the battery cell are used for electrical contacting of the battery cell, for example, in a Composite with other battery cells to form an electric battery.
  • Each battery cell has as Anschlußfah ⁇ NEN at least one anode (positive pole) and a cathode (negative ⁇ pole).
  • each terminal lug can, for. B. be formed as a flat metal strip, z. B. with a width of about 1 to 10 cm and / or a length in the range of about 1 to 5 cm.
  • the anode is formed from nickel-plated copper.
  • the cathode can z. B. be formed of aluminum or an aluminum alloy.
  • weldable anode and cathode materials is advantageous in terms of interconnection in an electrical battery.
  • the electrochemical flat cell is a lithium-ion cell.
  • a cell type is a strict monitoring, possibly also control or. Control of operating parameters particularly important.
  • the interior of the casing, in which the flat cell is housed together with the monitoring electronics, is preferably evacuated (internal pressure, for example, less than 0.1 bar).
  • the monitoring electronics preferably comprises a flat circuit carrier, for. B. based on epoxy resin, with it out ⁇ formed or attached electronic components (eg., In so-called SMD technology).
  • the operating parameters relevant in the specific application can be monitored, wherein the monitoring electronics preferably at least all for Measurement of the relevant operating parameters necessary components (hardware) includes.
  • Corresponding sensors can be structurally combined with this as part of the monitoring electronics and / or can be provided as separate components or preferably in the battery cell.
  • the "monitoring” may also include control or regulation of the operating parameter (s) concerned.
  • the monitoring electronics are designed to monitor at least one of the following operating parameters of the battery cell: cell voltage, cell current, cell temperature, cell pressure.
  • this electrical connection of the monitoring electronics is preferably located at the sections of the respective terminal lugs which are located between the flat cell edge and the edge of the battery cell (or the sheathing at this point).
  • this operating connection can also advantageously provide an operating voltage supply for the monitoring electronics.
  • a current measurement z For example, provision may be made for the monitoring electronics to be connected to two locations spaced apart along the cathode and / or along the anode in the current flow direction (preferably inside the enclosure), so that the current measurement is based on a measurement between such a pair Connection points falling voltage is realized.
  • a temperature sensor can, for. B. may be provided an NTC device.
  • the cell pressure could z. B. by a corresponding semiconductor sensor or indirectly, when using a gas-tight sheath, by a strain gauge (z., On the inside of the sheath formed or arranged) are measured.
  • the battery cell comprises a conduit arrangement penetrating the sheathing for communication between the monitoring electronics and an external electronic device.
  • the external electronic device may be in the application of the battery cell in an electrical energy storage of a hybrid or electric vehicle in particular to a part of the vehicle electronics, in particular z.
  • a so-called hybrid controller act.
  • this can also be used for communication with other monitoring electronics (in other battery cells of the same battery).
  • the leading out of the jacket line arrangement can, for. B. the interface to an electronic communication represent onsbus (z. B. in accordance with CAN-standard or other standards Stan ⁇ ).
  • the part of the line arrangement projecting from the jacket can be z. B. be provided with a connector to allow the connection to an extending in the battery line arrangement of a communication bus system.
  • the monitoring electronics comprise a microelectronic processor (eg "microcontroller").
  • the software running on it can, for. B. stored in an EEPROM module.
  • Such a processor can be used in particular for the processing of digital data, the z. B. based on originally analog measured operating parameters or derived variables were obtained.
  • the processor can also take over tasks in connection with the communication with the external electronic device, provided that not separate, but connected to the processor Kommuni ⁇ kationsstoff such. B. a CAN transceiver or the like are provided.
  • the monitoring electronics comprise an ASIC module (application-specific integrated circuit ).
  • ASIC module application-specific integrated circuit
  • This particular z. B. for processing analog signals, eg. B. the resulting in the measurement of the operating parameters measurement signals.
  • An ASIC module can also be advantageously used for analog / digital conversion of these measurement signals to digital representations z. B. forward to the mentioned processor.
  • such an ASIC module can also be used for digital / analog conversion in order to convert data generated in digital form by the monitoring electronics (and / or data obtained from the mentioned external device) into analog signals, which are needed for a control or regulation of operating parameters.
  • the electronic monitoring system for communication between the electronic monitoring system and an external electronic device comprises a modulator / demodulator means through which select ⁇ give a communication signal to the terminal lugs (modulated) or received from the terminal lugs ( can be demodulated).
  • a modulator / demodulator means through which select ⁇ give a communication signal to the terminal lugs (modulated) or received from the terminal lugs ( can be demodulated).
  • the shell passing through the line arrangement for such communication.
  • the provided in the battery cell casing of Folienma ⁇ TERIAL one hand prevents contamination therein un ⁇ territten flat cell and on the other hand allows a He ⁇ heightening the reliability of the battery cell or a battery formed therefrom.
  • the film material may, for. Example of one or more layers of plastic and optionally also at least one layer of metallic material (eg., Aluminum or other metallic material).
  • the electrochemical flat cell can be assembled layers of the sheet material between ⁇ together with the already electrically connected to the projecting therefrom connection lugs monitoring device, for example, between two terms of format matching (z. B. approximately rectangular), whereupon the two layers in a peripheral region welded around with each other (except for those portions of the peripheral region at which the connection lugs on ⁇ and optionally one leading to Automatwachungselekt ⁇ ronik conduit assembly from the casing Common- ren).
  • connection lugs and optionally connected to the surveil ⁇ monitoring electronic cable assembly from the casing Lead out at the portions of the sheet material edge, at which the connection lugs and optionally connected to the surveil ⁇ monitoring electronic cable assembly from the casing, a weld between the sheet material and these connection lugs, or the line assembly may take place, which in particular for providing a casing with evacuated internal space of Advantage is.
  • the two layers of the film material used to form the envelope can already be welded (or otherwise connected) to one another at their edge regions and thus form a "foil pocket" open only at one edge section, into which the flat cell together with the monitoring electronics are inserted can be so that in a subsequent welding or "seal" only the originally open edge portion and the leading out at this point connecting lugs (and possibly lines) must be welded.
  • the flat ⁇ cell or the battery cell formed from the order ⁇ hüllung can also be advantageously provided initially as (assembled) section of a tube formed from the sheet material, in which the flat cell is pushed together with the electronic monitoring system, so that only one more connection (eg welding) is required at the opposite "hose ends".
  • a battery cell arrangement comprising a number of electrically connected battery cells are created from a plurality of battery cells of the type described ⁇ .
  • a battery cell arrangement comprising a number of electrically connected battery cells are created from a plurality of battery cells of the type described ⁇ .
  • z. B about 20 to 200 battery cells are used in a series circuit.
  • a plurality of such series circuits for increasing the battery capacity can be connected in parallel and / or individual members of such a series circuit itself be provided as a parallel connection of a plurality of battery cells.
  • the terminal lugs of the individual battery cells can be suitably welded to one another or to a battery terminal pole (eg ultrasonically welded).
  • a battery cell of the type described and a therefrom formed overall battery cell assembly may find advantageous for the production of an electric battery of an electric or hybrid vehicle ⁇ or as a component of such an electric battery use.
  • Battery cell is a monitoring electronics enclosed in the sheathing of foil material and connected to the terminal lugs of the flat cell.
  • the electrical connection of the electronic monitoring system with the terminal lugs of the flat cell is this form (and optionally a part of the Ren walls ⁇ flat cell) is prepared before the inclusion of the flat cell is, together with the monitoring electronics.
  • the enclosure of the flat cell and the monitoring electronics can be done by evacuating the jacket.
  • Fig. 1 is a block diagram of, for example, in a
  • Fig. 2 is a battery cell in accordance of an exemplary embodiment of the invention
  • FIG. 3 shows a battery cell according to a further exemplary embodiment
  • Fig. 4 is a battery cell according to another exporting approximately ⁇ example
  • Fig. 5 is a battery cell according to another exporting ⁇ approximately example.
  • FIG. 1 illustrates a per se known composition of an electric battery 1 from a multiplicity of battery cells 10 that are electrically interconnected and that are accommodated together with a monitoring electronics 2 in a battery housing 3.
  • the monitoring electronics 2 is used to measure operating parameters of the battery 1 and may be electrically connected to one or more of the battery cells 10. Furthermore, the monitoring electronics 2 can, as shown, via a line arrangement 4 guided through the housing 3
  • FIGS. 2 to 5 show various embodiments of battery cells which are suitable for the production of an electrical battery and with which the construction of the battery or of a larger technical unit (such as a vehicle) equipped therewith, in particular with regard to to simplify a reliable ⁇ monitoring of operating parameters.
  • FIG. 2 shows a battery cell 10a, comprising a lithium-ion flat cell 12a of an approximately square format, with an edge length of z. B. about 10 to 30 cm and a thickness of z. B. about 5 to 15 mm.
  • the flat cell 12a has in FIG. 2 at an upper edge there ⁇ from projecting terminal lugs 14a and 16a ("Abieiter"), which act as anode (negative pole) and cathode (positive pole) of the flat cell 12a and the battery cell 10a.
  • Abieiter projecting terminal lugs 14a and 16a
  • the battery cell 10a comprises a flat cell 12a enclosing enclosure or sheath 18a of Folienmate ⁇ rial.
  • the film material is z. B. by one single or multi-layer, flexible and preferably gas-tight plastic film, or z. B. from an aluminum-plastic composite.
  • the sheath 18 a is as a
  • Foil pocket formed an approximately square format, in which the flat cell 12a as shown together with a monitoring electronics 20a was introduced, whereupon the first still open, in Fig. 2 upper edge of the bag, as a "Siegelrand", evacuating the interior of the film pocket by a Welding process (eg, thermally or by ultrasound) was closed.
  • a Welding process eg, thermally or by ultrasound
  • the monitoring electronics 20a is electrically connected to the terminal lugs 14a and 16a via leads 22a and 24a within the enclosure 18a.
  • a line arrangement 26a leads from the monitoring electronics 20a through the upper "sealing edge" of the envelope 18a to communicate (see arrows in FIG. 2) between the monitoring electronics 20a of the battery cell 10a and a (via arrows) in this line arrangement 26a. not shown) to enable external electronic device during operation of the battery cell 10a.
  • the battery cell 10a may correspond in structure to a conventional "lithium-ion softpack". Compared with such a conventional battery cell, in the battery cell le 10a a on the edge side of the flat cell 12a, on which the monitoring electronics 20a is arranged, be provided to accommodate the monitoring electronics according to "extended sealing edge".
  • the area of the actual seal here: Materialversch spaung
  • a weld the film material with the monitoring electronics.
  • monitoring electronics 20a With regard to the structure of the monitoring electronics 20a, reference is made, by way of example, to the exemplary embodiment described below according to FIG. 5, which shows such a possible structure in more detail.
  • FIG. 2 A the embodiment of FIG. 2 (compared to the embodiments described below, according to the Fig. 3 and 4) distinguishing feature is that all of the connecting lugs, in this case the anode and cathode form ⁇ the terminal lugs 14a and 16a, from the same (in Fig. 2 upper edge of the flat cell 12a protrude parallel to each other and in this direction accordingly from the same (upper) edge of the casing 18a protrude from the battery cell 10a, and that the monitoring electronics 20a is disposed in a space between adjacent terminal lugs.
  • the connecting lugs in this case the anode and cathode form ⁇ the terminal lugs 14a and 16a, from the same (in Fig. 2 upper edge of the flat cell 12a protrude parallel to each other and in this direction accordingly from the same (upper) edge of the casing 18a protrude from the battery cell 10a, and that the monitoring electronics 20a is disposed in a space between adjacent terminal lugs.
  • FIG. 3 shows a battery cell 10b according to another exemplary embodiment.
  • Bat ⁇ teriezelle 10a 10b connecting lugs are provided at a flat cell 12b of the battery ⁇ cell 14b and 16b on opposite edge portions (in Fig. 3, left and right) of the flat cell 12b, and protrude accordingly on opposite edge portions of a sheath 18b passing through this out of the sheath 18b.
  • the width of the terminal lugs 14b and 16b which project away from the flat cell 12b on the edge side is selected to be very large in this exemplary embodiment. This width extends over ei ⁇ NEN majority of 12b available on both respective edge portions of the flat cell edge length.
  • a housed, together with the flat cell 12b in the sheath 18b monitoring electronics 20b is disposed adjacent to ei ⁇ nem (other) edge portion of the flat cell 12b (in Fig. 3 above), which connects the two edge sections with each other, to which the connecting lugs 14b and 16b protrude the flat cell 12b.
  • connection flags 14c and 16c as in the oriented with respect to FIG. 2 beschrie ⁇ enclosed battery cell 10a (ie parallel zuei ⁇ Nander on a same edge portion of the flat cell abste ⁇ outgoing).
  • a monitoring electronics in the battery ⁇ cell 10c is a monitoring electronics in the battery ⁇ cell 10c, however, 20c not in a space between the connecting lugs 14c and 16c arranged, but in the region of an (other) edge portion of the flat cell 12c (in Fig. 4, left), which at that edge portion (in Fig. 4 above) adjacent to which the terminal lugs 14c and 16c are located.
  • An advantage of this design is z. Example, in that the located within the casing 18c portions of the terminal lugs 14c, 16c shorter than in the embodiment of FIG. 2 can be provided.
  • conduit 24c as Darge ⁇ represents the course of the connection lug 14c crosses is/2017in- least at this crossing point a suitable electrical
  • Isolation between the line 24c and the terminal lug 14c provide.
  • FIG 5 shows a battery cell 10d according to a further exemplary embodiment.
  • the spatial configuration of a flat-cell 12d thereof projecting connection lugs 14d and 16d in a jacket 18d and an electronic monitoring system 20d corresponds essen- sentlichen the configuration in the example of a battery cell 10a shown in FIG. 2.
  • the battery cell lOd is single ⁇ Lich the specific format the flat cell 12d is chosen slightly differently than in the flat cell 12a, namely rectangular and not square as in the flat cell 12a.
  • the monitoring electronics 20d comprises a preferably flexible circuit carrier (integrated electronic circuit board) 30d with electronic components formed or arranged thereon:
  • a temperature sensor (z. B. NTC element) 32d is vorgese ⁇ hen.
  • this sensor 32d is arranged directly on the circuit carrier 30d.
  • a buffer capacitor C advantageously ensures a smoothing of the operating voltage provided in this way, in order to prevent functional interruptions when the battery cells are loaded.
  • a connected to the monitoring unit 34d digital interface block 36d accomplished in the illustrated embodiment, communication between the surveil ⁇ monitoring unit 34d and the other on the same communication bus (z. B. CAN bus) connected devices.
  • the battery cell 10d as one of many battery cells ei ⁇ ner electric battery can thus take place in particular a Kommuni ⁇ nication between the illustrated monitoring unit 34d and corresponding monitoring units in other battery cells of the same battery and / or with a central evaluation unit, either within the electric battery or outside the battery (eg as Kompo ⁇ component of a vehicle electronics) may be arranged.
  • the monitoring unit 34d is directly (but elsewhere) connected to the terminal lugs 14d and 16d via another pair of wires.
  • 20d still includes the electronic monitoring a passage extending between the connecting lugs 14d and 16d connecting path with a series circuit of a 34d controllable by the monitoring unit switching element S (z. B. Tran ⁇ sistor) and a resistor R.
  • the switching element S By closing the switching element S can, if required, a desired discharge of the flat cell 12d (via the resistor R) in the context of so-called cells ⁇ compensation ( "balancing") can be realized.
  • the switching element S and the resistor R other suitable electronic components for ak ⁇ tive or passive cell compensation could be provided on the cell 10d.
  • each ⁇ avalanching monitoring electronics by a provided for this purpose, leading out of the respective battery cell line ⁇ arrangement is implemented in the above described embodiments according to the Fig. 2 to 5, as well as other communication possibility could alternatively or additionally be provided for.
  • B. a wireless electromagnetic or inductive coupling through the sheath therethrough.
  • a communication could be electrically z. B. via the terminal lugs, which form the anode and the cathode of the battery cell.
  • the monitoring electronics z. B. be equipped with a modulator / demodulator to generate corresponding modulation signals on the terminal ⁇ flags or to obtain from these terminal lugs (and demodulate).
  • connection board within a battery for connection between a monitoring and evaluation unit arranged outside the battery and the individual ⁇ nen battery cells .

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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)
  • Inorganic Chemistry (AREA)
  • Battery Mounting, Suspending (AREA)
  • Secondary Cells (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Abstract

L'invention concerne une cellule de batterie (10a) comprenant une cellule plate (12a) électrochimique comportant des cosses plates (14a, 16a) s'en éloignant depuis la périphérie et une gaine (18a) en un matériau en feuille entourant la cellule plate (12a), les cosses plates (14a, 16a) pénétrant à chaque fois à travers la gaine (18a) en en ressortant. Pour faciliter un contrôle des paramètres de fonctionnement de la cellule de batterie (10a) ou d'une batterie électrique fabriquée à partir de telles cellules de batterie, la gaine (18a) comporte en outre une électronique de contrôle (20a) qui est électriquement connectée aux cosses plates (14a, 16a) de la cellule plate (12a). L'invention concerne en outre un procédé de fabrication d'une cellule de batterie (10a) et son utilisation, par ex. comme composant d'une batterie électrique d'un véhicule électrique ou hybride.
PCT/EP2011/068731 2010-11-10 2011-10-26 Cellule de batterie, procédé de fabrication d'une cellule de batterie et utilisation d'une cellule de batterie WO2012062574A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010043710A DE102010043710A1 (de) 2010-11-10 2010-11-10 Batteriezelle, Verfahren zur Herstellung einer Batteriezelle sowie Verwendung einer Batteriezelle
DE102010043710.7 2010-11-10

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WO2012062574A1 true WO2012062574A1 (fr) 2012-05-18

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WO2016131731A1 (fr) * 2015-02-18 2016-08-25 Audi Ag Élément de batterie pour batterie d'un véhicule automobile, batterie et véhicule automobile
CN112673515A (zh) * 2018-09-04 2021-04-16 哈钦森技术股份有限公司 感测式电池袋
US10991990B2 (en) 2016-04-18 2021-04-27 Robert Bosch Battery Systems Llc Low profile sensor and electrochemical cell including same
WO2023024580A1 (fr) * 2021-08-27 2023-03-02 华为技术有限公司 Appareil de surveillance de batterie et appareil de batterie

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DE102012207999A1 (de) * 2012-05-14 2013-11-14 Robert Bosch Gmbh Hüllfolie für ein galvanisches Element, elektrochemischer Speicher, elektrochemisches Speichersystem, flexible Folie für eine Hülle eines galvanischen Elements und Verfahren zum Bestimmen einer Zustandsgröße eines elektrochemischen Speichers
DE102012214961A1 (de) * 2012-08-23 2014-02-27 Robert Bosch Gmbh Batteriezelle mit einer elektronischen Schaltung
DE102013004658B4 (de) 2013-03-16 2022-04-21 Volkswagen Aktiengesellschaft Batteriezelle und Verwendung der Batteriezelle in einem Pkw, der ein Elektro- oder Hybridfahrzeug ist, oder in einer stationären Einrichtung
DE102013209393A1 (de) * 2013-05-22 2014-11-27 Robert Bosch Gmbh Batteriezellmodul und Verfahren zum Betreiben eines Batteriezellmoduls
DE102013213551A1 (de) * 2013-07-11 2015-01-15 Robert Bosch Gmbh Aufnahmevorrichtung, Batterie und Kraftfahrzeug
JP6094810B2 (ja) * 2013-07-17 2017-03-15 トヨタ自動車株式会社 非水電解質二次電池
DE102013218933A1 (de) * 2013-09-20 2015-03-26 Robert Bosch Gmbh Lithium-Ionen-Akkumulator mit verringerter Gefährdung durch Abblasen
DE102014200378A1 (de) * 2014-01-13 2015-07-16 Robert Bosch Gmbh Galvanische Zelle und Verfahren zum Herstellen einer galvanischen Zelle
DE102014208543A1 (de) * 2014-05-07 2015-11-12 Robert Bosch Gmbh Batteriezelleinrichtung mit einer Batteriezelle und einer Überwachungselektronik zum Überwachen der Batteriezelle und entsprechendes Verfahren zum Betreiben und Überwachen einer Batteriezelle
DE102014222838A1 (de) * 2014-11-10 2016-05-12 Robert Bosch Gmbh Galvanische Zelle und Verfahren zur Herstellung einer galvanischen Zelle
DE102015002069B4 (de) 2015-02-18 2022-01-27 Audi Ag Batterie und Kraftfahrzeug
EP3182484B1 (fr) * 2015-12-17 2019-04-03 Lithium Energy and Power GmbH & Co. KG Élement de batterie comprenant un boitier d'elements de batterie comprenant une partie electrochimique et un support comprenant au moins une partie de commutation et procede de fabrication d'un tel element de batterie
EP3336921A1 (fr) * 2016-12-14 2018-06-20 Lithium Energy and Power GmbH & Co. KG Batterie
DE102018209324A1 (de) * 2018-06-12 2019-12-12 Bayerische Motoren Werke Aktiengesellschaft Überwachung von Batterien

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WO2016131731A1 (fr) * 2015-02-18 2016-08-25 Audi Ag Élément de batterie pour batterie d'un véhicule automobile, batterie et véhicule automobile
US10236539B2 (en) 2015-02-18 2019-03-19 Audi Ag Battery cell for a battery of a motor vehicle, battery, and motor vehicle
US10991990B2 (en) 2016-04-18 2021-04-27 Robert Bosch Battery Systems Llc Low profile sensor and electrochemical cell including same
CN112673515A (zh) * 2018-09-04 2021-04-16 哈钦森技术股份有限公司 感测式电池袋
WO2023024580A1 (fr) * 2021-08-27 2023-03-02 华为技术有限公司 Appareil de surveillance de batterie et appareil de batterie

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