EP2777087A2 - Support pour un circuit électrique pourvu d'un accumulateur d'énergie intégré - Google Patents

Support pour un circuit électrique pourvu d'un accumulateur d'énergie intégré

Info

Publication number
EP2777087A2
EP2777087A2 EP12774972.9A EP12774972A EP2777087A2 EP 2777087 A2 EP2777087 A2 EP 2777087A2 EP 12774972 A EP12774972 A EP 12774972A EP 2777087 A2 EP2777087 A2 EP 2777087A2
Authority
EP
European Patent Office
Prior art keywords
carrier
cavity
ion
electrode
carrier according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12774972.9A
Other languages
German (de)
English (en)
Inventor
Tjalf Pirk
Ricardo Ehrenpfordt
Laura Bohne
Juergen Steigert
Thomas BREITSCHNEIDER
Jochen Rupp
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Robert Bosch GmbH
Original Assignee
Robert Bosch 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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP2777087A2 publication Critical patent/EP2777087A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/04—Construction or manufacture in general
    • H01M10/0436—Small-sized flat cells or batteries for portable equipment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/40—Printed batteries, e.g. thin film batteries
    • 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
    • H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
    • 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
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/058—Construction or manufacture
    • H01M10/0585—Construction or manufacture of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators
    • 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
    • H01M2010/0495—Nanobatteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/14—Cells with non-aqueous electrolyte
    • H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/14—Cells with non-aqueous electrolyte
    • H01M6/18—Cells with non-aqueous electrolyte with solid electrolyte
    • H01M6/181—Cells with non-aqueous electrolyte with solid electrolyte with polymeric electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00—Primary cells; Manufacture thereof
    • H01M6/14—Cells with non-aqueous electrolyte
    • H01M6/18—Cells with non-aqueous electrolyte with solid electrolyte
    • H01M6/188—Processes of manufacture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Definitions

  • the invention relates to a support for an electrical circuit with an integrated energy storage and a method for producing the same according to the preamble of the independent claims.
  • buttons The most common application with small size are the button cells. It is an electrochemical cell as a primary cell or secondary cell with round, flat design, which resembles a garment button in size and shape. After the electrode material one differentiates among other things silver oxide, mercury oxide and lithium cells, as well as zinc air alkali manganese cells. If the button cells are designed as accumulators, they are mostly nickel-cadmium rechargeable batteries or nickel-metal hydride rechargeable batteries. In comparison to other components of, for example, energy self-sufficient sensor systems, the button cells, however, are relatively large in comparison. Typical sizes are diameters between 5 and 20 mm and thicknesses between 2 and 5.4 mm, depending on the desired capacity.
  • the battery layers have typical thicknesses of a few micrometers and can, among other things, be applied directly to the microsystem (MEMS) or electronic chips.
  • MEMS microsystem
  • the thin-film batteries still contain relatively low capacities or charge quantities due to the low material thicknesses.
  • the object of the invention is a further reduction of the size and an optimization of the design of chemical energy storage in the form of batteries and / or accumulators to increase the integration density for the application in particular within microsystems or within modules with microsystems in the realization of sufficient amounts of charge.
  • the carrier according to the invention and the method according to the invention with the features of the independent claims have the advantage over that can be filled with an ion-conducting material by the elimination of a classic battery or cell housing in the substrate layers arbitrarily shaped volumes and used as energy storage. On the one hand, this significantly increases the functional and integration density and thus considerably reduces costs and size. As a result, the proportion of unused substrate areas is minimized and the utilization factor is minimized
  • an electrical circuit comprises electrically conductive interconnects, vias or plated-through holes, for example in the form of electrically conductive metallizations, and / or pads or
  • Micromechanical sensors, electronic components and / or other circuit carriers are used.
  • an energy store means an arrangement which enables the storage of electrical energy in the form of chemical energy, for example bound in chemical redox reactions.
  • electrical energy in the form of chemical energy, for example bound in chemical redox reactions.
  • These are, in particular, galvanic primary cells (batteries) or secondary cells (accumulators).
  • a cavity is also to be understood as meaning a cavity which can be designed both closed and open.
  • an ion-conducting material is furthermore to be understood as meaning an electrolyte which is at least partially in ion form and effects its electrical or ionic conductivity and the charge transport by the directed movement of ions. It is an acid, a base or a salt, which may be in the form of a liquid, a gel or a solid.
  • a contacting between the respective electrode and the ion-conducting material is to be understood as meaning a connection which permits ion transmission between the electrode and the ion-conducting material, that is to say the electrolyte.
  • the first part of the electrical circuit has at least one first connection surface and / or the second part of the electrical circuit has a second connection surface, wherein at least one of the connection surfaces is arranged on an outer surface of the carrier.
  • pads are provided on an outer substrate layer which forms an outer surface of the carrier to allow easy and direct contacting of electrical components to the electrical circuit and thus to the integrated energy store.
  • the cavity prefferably has at least one first closable opening, which extends up to an outer surface of the carrier
  • the closure of the opening may be e.g. as overmolded plastic, as glued-on lid made of metal or plastic and / or as an overlaminated cover foil, e.g. made of metal, be formed. This measure makes it possible to charge the electrolyte only after the production of the printed circuit board, the completion of the electrical circuit or even further, the ion-conducting material
  • Adhesive hardening or soldering to fill in the cavity Furthermore, the filling step can also be carried out after long storage times of the printed circuit board. Accordingly, the degrees of freedom increase in the choice of electrolyte since
  • the electrolyte is subject to less aging effects due to temperature and humidity if it is not yet contained in the cavity during the storage and transport time of the printed circuit board, but is only filled or introduced at a later time. Furthermore, it is advantageous that the cavity at least one up to the
  • the first opening and / or the second opening is closed by at least one self-closing closure means.
  • the closure means can be attached to the carrier before introducing the electrolyte into the cavity, whereby the
  • Manufacturing process is further simplified.
  • the introduction of the electrolyte can then be done in a very simple manner, for example by piercing the self-sealing closure.
  • the first electrode is at least partially disposed on the inner surface of at least one of the cavities and the second
  • Electrode is at least partially disposed on the inner surface of at least one of the cavities.
  • the advantage of this measure is that the electrodes
  • the electrodes can be designed as liquids, layers, thin films and / or filaments
  • the electrodes may be formed at least partially in the form of an electrically conductive metallization and thus introduced together with the electrical circuit during the manufacturing process of the circuit carrier
  • the electrodes in the region of their geometric extent it is expedient for the electrodes in the region of their geometric extent to be adapted to the geometric shape of the cavities in this way, ie if the electrodes are to be metallised
  • the manufacturing process can be adapted to the geometric shape of the cavities in such a way that no cavities arise between the inner surfaces of the cavities and the electrodes in the region of the composite interfaces.
  • the electrodes can also each occur as a single material or material pairing. The materials or at least one of the
  • Material components per electrode act both as an oxidizing agent and as a reducing agent and thus absorb both ions and electrons as well as deliver. Thus, further degrees of freedom in the
  • the electrodes can be designed to be continuous as part of the rewiring layers of the circuit carrier, so that no separate contacting of these is necessary. This results in reduced costs and increased reliability.
  • the first electrode is formed as a cathode and in particular consists of coated aluminum, wherein the coating comprises a lithium-containing transition metal oxide, and the second electrode is formed as an anode and in particular consists of coated copper, wherein the coating comprises graphite.
  • the lithium-containing transition oxide may be, for example, a lithium cobalt oxide (LiCoO 2 )
  • LiMn 2 0 4 Lithium manganese oxide
  • LiFeP0 4 lithium iron phosphate
  • Nominal voltage with the highest possible rated voltage, such as a lithium manganese oxide, energetically advantageous effect.
  • At least one protective element is provided for insulating the ion-conducting material from the environment, wherein the protective element as a partial metallization of the outer surface of the carrier, full-surface metal layer within the carrier, metallized groove, metallization of the inner surface of the cavity, metal lid, coating lacquer and / or solder mask is formed.
  • the protective element as a partial metallization of the outer surface of the carrier, full-surface metal layer within the carrier, metallized groove, metallization of the inner surface of the cavity, metal lid, coating lacquer and / or solder mask is formed.
  • Contact point are designed for a metal lid, which also protects the assembled components.
  • the metallization can also be within the circuit substrate by full-surface Metal layers and circumferential metallized grooves can be made or isolated from the electrodes within the cavity.
  • the moisture protection can also take place through the installation location of the circuit carrier. This is advantageously possible by the invention, since it allows for providing an opening, the electrolyte only after successful
  • At least one of the protective elements is designed as a conductor of electrical signals.
  • a gelatinous ion conductor means a liquid ion conductor embedded in a polymer.
  • the gel-like ionic conductive material may then be e.g. be introduced by dispensing or injecting into the cavity.
  • the separator is impregnated with the ion-conducting material and has the task to separate the two electrodes spatially and / or electrically in two Kavticianenhuggn.
  • the separator must be permeable to the ions which cause the conversion of the stored chemical energy into electrical energy.
  • the materials used for the separator are predominantly microporous plastics and tile made of glass fiber or polyethylene.
  • At least one second cavity is provided, wherein at least one electrode of the first cavity and at least one electrode of the second cavity are electrically connected to one another.
  • This configuration offers the considerable advantage that several "memory cells" in the carrier can be connected in parallel or in series in order to increase the storage capacity of the energy store. In the latter case, all the electrode pairs would be led separately from the outside of the printed circuit board, so that the printed circuit board customer can make the interconnection in the assembly itself, which offers advantages of both technical and electronic components and economic nature for the customer and the supplier
  • the filling of the cavities can thereby be achieved via a common opening to the surface or outer surface of the cavity
  • Circuit carrier or, for example, if different ion-conducting materials are provided, via separate, the respective cavities
  • a second substrate layer is provided which partially delimits the cavity, which Substrate layers are pressed under vacuum, so that a negative pressure in the cavity is formed, and the ion-conducting material in the cavity by means of
  • Closure is self-closing.
  • the ion-conducting material can be introduced into the cavity in a very simple manner, without the need for a separate device or a separate drive.
  • FIG. 1 shows a first embodiment of the carrier according to the invention without ion-conducting material
  • FIG. 2 shows the carrier according to FIG. 1 with ion-conducting material
  • FIG. 3 shows a second embodiment of the carrier according to the invention with arranged on an upper surface connecting surfaces
  • Fig. 4 shows another embodiment with two parallel connected
  • Fig. 5 shows another embodiment with two connected in series
  • 6 shows a further embodiment with a three-dimensionally structured cavity
  • 7 shows a further embodiment with a liquid ion-conducting material
  • FIG. 8 is a plan view of a carrier according to the invention.
  • a illustrated in Fig. 1 first embodiment of a carrier according to the invention is designated in its entirety by the reference numeral 10.
  • the carrier 10 is designed as a printed circuit board and has a first substrate layer 12 and a second substrate layer 14.
  • the two substrate layers 12, 14 are formed as thermoset layers, which are traversed by glass fibers, for example embedded in epoxy resin glass fibers.
  • the Epoxydharzlagen serve mainly the PCB stability and as a carrier of an electrical circuit 15. Standard thicknesses for the epoxy resin cores are 50 to 710th
  • the carrier 10 further includes a prepreg layer 16 disposed between the first substrate layer 12 and the second substrate layer 14.
  • the prepreg layer 16 is duroplastic
  • Substrate layers 12, 14. Typical prepreg thicknesses are 50 to 180
  • the carrier 10 has a cavity 18.
  • the cavity 18 is arranged between the first substrate layer 12 or the prepreg layer 16 and the second substrate layer 14 and has an inner surface 20.
  • a first electrode 22 and a second electrode 24 opposite thereto is arranged on the inner surface 20 of the cavity 18.
  • the two electrodes 22, 24 are here as metallized layers, i. as electrically conductive
  • the carrier 10 also has a first connection surface 26.
  • the first connection surface 26 is arranged on a first outer surface 28 of the carrier 10 and connected to the first electrode 22 via a first through-connection 30.
  • the first connection surface 26 and the first through-connection 30 form a first part 31 of the electrical circuit 15.
  • a second connection surface 32 is arranged on a second outer surface 34 of the carrier 10. The second pad 32 is via a second
  • connection 36 connected to the second electrode 24.
  • the second connection surface 32 and the second through-connection 36 form a second part 33 of the electrical circuit 15.
  • an opening 40 is arranged on the first outer surface 28 of the carrier 10, which extends up to the cavity 18.
  • the ion-conducting material 42 is arranged adjacent to the inner surface 20 of the cavity 18 and contacts the first electrode 22 and the second electrode 24. This contacting is designed such that an ion transport between the two electrodes 12, 14 is made possible, whereby a first energy storage cell 41 is formed.
  • the opening 40 serves to introduce the ion-conducting material 42 into the cavity 18.
  • the carrier 10 further comprises a closure means 44, which closes the opening 40.
  • the closure means 44 is formed as a cover 44.
  • the lid 44 is disposed on the first outer surface 28 of the carrier 10 on the opening 40.
  • closure means 44 an overmolded
  • Plastic or an overlaminated lidding foil e.g. B. to provide metal.
  • a protective element 45 can furthermore be provided.
  • the protective element 45 is formed in this embodiment as a coating lacquer layer 45 for the insulation of the electrical connection surfaces 26, 32 and arranged on the first outer surface 28 and the second outer surface 34.
  • the coating lacquer layer 45 covers, except for the two connection surfaces 26, 32 and the closure means 44, the entire first and second outer surface 28, 34, so that in addition to the function as electrical insulation with appropriate choice and interpretation of
  • a further exemplary embodiment of the carrier 10 according to the invention shown in FIG. 3 has an additional third substrate layer 46.
  • the cavity 18 is bounded by all three substrate layers 12, 14, 46.
  • the second land 32 is formed on the first outer surface 28, i. arranged on the upper side of the carrier 10, so that now both pads 26, 32 are arranged on the same outer surface 28 and can be contacted in a very simple way by a component (not shown).
  • Terminal surface 32 connects, thereby passes through the first and the second substrate layer 12, 14th
  • Carrier 10 according to the invention has a second cavity 47.
  • the first cavity 18 is, analogous to the embodiment of FIG. 3, between the first substrate layer 12, the second substrate layer 14 and the third
  • Substrate layer 46 is arranged.
  • the second cavity 47 is between the third substrate layer 46, a fourth substrate layer 48 and a fifth one
  • Substrate layer 50 is arranged.
  • the carrier 10 also has a further first electrode 52 and a further second electrode 54.
  • the first electrode 52 and the second electrode 54 are arranged on a second inner surface 56 of the second cavity 47.
  • a second ion conducting material 58 is further disposed adjacent to the second inner surface 56.
  • the second ion conducting material 58 contacts the first electrode 52 and the second electrode 54 of the second cavity 47 such that ion transport between the two
  • Electrodes 52, 54 is enabled, whereby a second energy storage cell 57 is formed.
  • the first electrode 22 of the first energy storage cell 41 and the first electrode 52 of the second energy storage cell 57 are connected to the first connection surface 26 via the first through-connection 30 in order to enable contacting of the electrical or electronic components and / or further circuit carriers.
  • the second electrode 24 of the first energy storage cell 41 and the second electrode 54 of the second energy storage cell 57 with the second part 33 of the electrical circuit 15 are electrically connected.
  • connection 36 connected to the second pad 36, to also allow a contacting of the electrical or electronic components and / or other circuit carriers.
  • circuit carrier interconnection it is quite conceivable that the interconnection of the electrode pairs 22, 24, 52, 54 instead of a fixed structure of the circuit substrate, d. H. over printed conductors and
  • Through holes 30, 36 also variable over the pads 26, 32 on the outer surfaces 28, 34 of the carrier 10 by z. As wire bonding or flip-chip contacts on the components to be assembled is flexible. In the latter case, then all electrode pairs 22, 24, 52, 54 would be performed separately from the outer surfaces 28, 34 of the carrier 10.
  • the carrier 10 from FIG. 5 also has two energy storage cells 41, 57, wherein the first energy storage cell 41 is connected in series with the second energy storage cell 57.
  • This series connection is achieved in that the first electrode 24 of the first energy storage cell 41 with the first electrode 52 of the second energy storage cell 57 are electrically connected to each other by means of a third through-connection 62.
  • the first electrode 22 of the first energy storage cell 41 is connected to the first connection surface 26 and the second electrode 54 of the second energy storage cell 57 is connected to the second connection surface 32, in order to allow external contacting of components.
  • FIG. 10 A further embodiment of the carrier 10 according to the invention is shown in FIG.
  • the illustrated circuit carrier 10 is characterized in that the first substrate layer 12 and the third substrate layer 46 in the region of the cavity 18 have a plurality of projections 64.
  • Structuring can be done by laser cutting, milling or punching
  • Substrate layers 12, 46 take place before joining.
  • the metallization of the electrodes 12, 14 can be advantageously carried out by laminating films, blowing, pressing, metallization of starting layers and subsequent galvanic processes, as they are already known for example for the vias.
  • Fig. 7 shows a carrier 10 with a liquid ion-conducting material 42 '.
  • a necessary for liquid electrolyte Separater 66 is provided, which is arranged between the second substrate layer 14 and the third substrate layer 46.
  • the separator 66 is arranged in the liquid ion-conducting material 42 'and has the task of spatially and / or electrically separating the two electrodes 22, 24.
  • the separator 66 must be permeable to the ions which cause the conversion of the stored chemical energy into electrical energy.
  • only an opening 40 closed by the closure means 44 is provided for the introduction of the liquid ion-conducting material 42 '.
  • the cavity 18, 47 can assume almost any desired shape and be filled with the ion-conducting material 42, 42 ', 58 in order to obtain an energy store form.
  • substrate volumes are significantly reduced or the utilization factor of substrate volume as an energy store is significantly increased.
  • cavities 18, 47 these can be arranged one above the other in a relatively simple manner, also offset or overlapping or arranged next to one another within a plane, and coupled to one another in a simple manner. Thereby, as shown in FIGS. 4 and 5, it is possible to have a plurality of
  • Energy storage cells 41, 57 parallel and / or in series to obtain a desired or maximized capacity.
  • FIG. 9 shows an energy-autonomous system with a MEMS sensor 68 and evaluation electronics 70, which are arranged on a carrier 10 according to the invention.
  • the contacting of the MEMS sensor 68 is realized via a bonding wire 72.
  • the overall system further comprises a metal layer 74, a circumferential metallized groove 76 and a metal lid 78.
  • the metal layer 74 is between the third substrate layer 46 and the fourth
  • Substrate layer 48 is arranged and moisture-tight connected to the metallized groove 76.
  • the metallized groove 76 is also integrated in the substrate planes 12, 14, 46, 48, extends annularly around the cavity 18.
  • the metal lid 78 is disposed on the first outer surface 28 of the carrier 10 and also connected in a moisture-tight manner to the metallized ring 76.
  • the protective elements 45, 74, 76, 78 thus creates a moisture-proof system, which effectively protects both the ion-conducting material 42 and the MEMS sensor 68 and the transmitter 70 from moisture.
  • the three metallic Protective elements 74, 76, 78 reaches an EMC protection for the electronics. Communication to the outside can then take place eg via wireless systems such as Bluetooth.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Secondary Cells (AREA)
  • Semiconductor Integrated Circuits (AREA)
  • Electrotherapy Devices (AREA)

Abstract

Support (10) pour un circuit électrique pourvu d'un accumulateur d'énergie intégré, qui comporte au moins une cavité (18, 47) présentant une surface interne (20, 56), la cavité (18, 47) étant entourée au moins en partie par une couche de substrat (12, 14, 46, 48, 50) du support (10), au moins un matériau conducteur d'ions (42, 42', 58) qui est disposé dans au moins une des cavités (18, 47), adjacent à la surface interne (20, 56), au moins une première électrode (22, 52) qui se trouve en contact avec au moins un des matériaux conducteurs d'ions (42, 42', 58) et qui est électriquement connectée avec au moins une première partie (31) du circuit électrique (15) du support (10), et au moins une seconde électrode (24, 54) qui se trouve en contact avec au moins un des matériaux conducteurs d'ions (42, 42', 58) et qui est électriquement connectée avec au moins une deuxième partie (33) du circuit électrique (15) du support (10).
EP12774972.9A 2011-11-07 2012-09-21 Support pour un circuit électrique pourvu d'un accumulateur d'énergie intégré Withdrawn EP2777087A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011085863A DE102011085863A1 (de) 2011-11-07 2011-11-07 Träger für eine elektrische Schaltung mit einem integrierten Energiespeicher
PCT/EP2012/068585 WO2013068169A2 (fr) 2011-11-07 2012-09-21 Support pour un circuit électrique pourvu d'un accumulateur d'énergie intégré

Publications (1)

Publication Number Publication Date
EP2777087A2 true EP2777087A2 (fr) 2014-09-17

Family

ID=47044988

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12774972.9A Withdrawn EP2777087A2 (fr) 2011-11-07 2012-09-21 Support pour un circuit électrique pourvu d'un accumulateur d'énergie intégré

Country Status (4)

Country Link
EP (1) EP2777087A2 (fr)
CN (1) CN103907229B (fr)
DE (1) DE102011085863A1 (fr)
WO (1) WO2013068169A2 (fr)

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US9263357B2 (en) * 2013-12-06 2016-02-16 Infineon Technologies Dresden Gmbh Carrier with hollow chamber and support structure therein
US9560765B2 (en) 2013-12-06 2017-01-31 Infineon Technologies Dresden Gmbh Electronic device, a method for manufacturing an electronic device, and a method for operating an electronic device
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WO2013068169A3 (fr) 2013-07-18
CN103907229A (zh) 2014-07-02
WO2013068169A2 (fr) 2013-05-16
DE102011085863A1 (de) 2013-05-08

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