WO2005010458A2 - Condensateur electrochimique a deux couches, son procede de production et appareil equipe d'un tel condensateur a deux couches - Google Patents

Condensateur electrochimique a deux couches, son procede de production et appareil equipe d'un tel condensateur a deux couches Download PDF

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Publication number
WO2005010458A2
WO2005010458A2 PCT/EP2004/007953 EP2004007953W WO2005010458A2 WO 2005010458 A2 WO2005010458 A2 WO 2005010458A2 EP 2004007953 W EP2004007953 W EP 2004007953W WO 2005010458 A2 WO2005010458 A2 WO 2005010458A2
Authority
WO
WIPO (PCT)
Prior art keywords
double
layer capacitor
capacitor according
energy storage
electrodes
Prior art date
Application number
PCT/EP2004/007953
Other languages
German (de)
English (en)
Other versions
WO2005010458A3 (fr
Inventor
Edith Sibylle Carl
Alexander Hahn
Barbara Schricker
Manfred Waidhas
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP04741089A priority Critical patent/EP1647039A2/fr
Publication of WO2005010458A2 publication Critical patent/WO2005010458A2/fr
Publication of WO2005010458A3 publication Critical patent/WO2005010458A3/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/32—Carbon-based
    • 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
    • Y02E60/13—Energy storage using capacitors

Definitions

  • Electrochemical double layer capacitor method for its production and device with such a double layer capacitor
  • the invention relates to an electrochemical double-layer capacitor with cathode and anode as an energy storage element made up of electrodes arranged opposite one another and electrolyte located between them.
  • the invention also relates to associated methods for producing such double-layer capacitors and to an apparatus with such a double-layer capacitor.
  • Double-layer capacitors are used for energy storage and in particular for the temporary power supply (“back-up”) of devices operated with electrical energy in various fields of technology.
  • Such capacitors are known in many forms.
  • a wound electrode arrangement is used as a compact component for high-current applications based on what the known capacitors are optimized.
  • the known double-layer capacitors are not suitable for SMD technology, for disposable applications in medical technology or for systems which require particularly efficient use of space or adaptation.
  • the double-layer capacitor according to the invention is constructed as an energy storage element using thin-film technology, with an overall thickness of the element of less than 1 mm being achievable with an electrode thickness between 5 and 500 ⁇ m.
  • Elements can be placed directly in a housing or on the inside of a device to be supplied. Encapsulation in a separate housing is unnecessary for the energy storage according to the invention.
  • the new double layer capacitor is shape-free, i.e. it can be brought into almost any shape.
  • a double-layer capacitor is in particular also capable of being contoured, so that it can be adapted to the contour of any device wall. This applies, for example, to an inner ear hearing aid with an outer contour adapted to the ear canal or to the inner wall of a cell phone.
  • such a device has, in addition to the interchangeable unit for current / voltage supply arranged in the housing, a double-layer capacitor according to the invention as a “backup” energy storage element using thin-film technology in a wall of the housing.
  • FIG. 1 shows a double-layer capacitor using thin-film technology, which is introduced into a housing of a device to be supplied,
  • FIG. 2 shows a double-layer capacitor corresponding to FIG. 1, which is integrated directly into the housing wall of a device
  • Figure 3 shows a bipolar double-layer capacitor in a two-line structure
  • Figures 4 and 5 alternatives for contacting or current arrester Figure 6 shows the side view of a double-layer capacitor in a stepped arrangement
  • FIG. 7 shows the shape-adapted arrangement of a double-layer capacitor in a cell phone shell with an associated cutout VIII in FIG. 8.
  • Such a housing can in particular be a cell phone shell or the like.
  • a cathode 3, an electrolyte 4 and an anode 5 are arranged in a layered arrangement in the housing 1 between two current collectors 2, 2 '.
  • a separator can additionally be assigned to the electrolyte in FIGS. 1 and 2.
  • the double-layer capacitor described in this way is located in the housing 1.
  • the double-layer capacitor is mounted flush in the surface or wall of the housing and sealed with a cover film 6 or the like.
  • the electrodes 3 are designed as thin layers, for example with a thickness of 50 ⁇ m.
  • the thickness should generally be between 10 and 100 ⁇ m.
  • the broadest possible range is from 5 to 500 ⁇ m.
  • double-layer capacitors are formed, in which the thickness of the entire component can advantageously be less than 1 mm and preferably between 70 and 700 ⁇ m.
  • the thin to ultra-thin structure of the double layer capacitor means that only a small amount of material is required. This results in simple and inexpensive manufacture of the double-layer capacitor. Double-layer capacitors constructed in this way are suitable for disposable applications.
  • the double-layer capacitors described with reference to FIGS. 1 and 2 can be used in particular in decentralized devices for their two-part power supply.
  • the double-layer capacitor in the device shell of a cell phone, in which the double-layer capacitor is used for the so-called “back-up” supply when the batteries are replaced
  • Electrolyte meet certain conditions.
  • the electrolyte can have protic properties.
  • Electrolyte can also have aprotic properties.
  • the electrolyte is usually aqueous.
  • FIG. 3 shows an arrangement which has a bipolar structure with two cells in accordance with FIGS. 1 or 2. Starting from a central current collector 2, a cathode 3 is applied on the underside and an anode 5 on the top. An electrolyte layer 4 is located on the free side of the cathode 3 and the anode 4. The counter electrodes, ie the cathode 3 above and the anode 5 below, are respectively applied to the two electrolyte layers 4. The layer structure is in turn completed by external current collectors 2 *.
  • the bipolar arrangement according to FIG. 3 gives the possibility of connecting double-layer capacitors in series.
  • the number n of cells can be n> 2.
  • FIGS. 4 and 5 each show the layer structure in perspective, the corresponding layer composite resulting from the collectors 2, cathode 3 and anode 5 with the electrolyte 4.
  • a contact 7 with current arrester is attached to the opposite edges in a diagonal arrangement.
  • the current arresters can be attached over the entire width of the current collector 2 or the electrodes 3 or 5 or only at their opposite corners.
  • FIG. 6 shows a double-layer capacitor which consists of individual elements corresponding to FIGS. 1 or 2, but the electrodes are strip-shaped. This results in a bipolar structure again in some areas.
  • a construction requires a reduced overall thickness for a two-line arrangement according to FIG. 3 or an arrangement with significantly more cells than in a conventional construction.
  • FIG. 7 shows a cell phone 10 with the detail of a cell phone shell 11.
  • the cell phone has a rechargeable battery (AKKU) for power supply, which usually has a long service life.
  • AKKU rechargeable battery
  • an ultra-thin double-layer capacitor 12 is introduced into the wall of the cell phone shell 11 as an electrochemical energy storage element with a structure corresponding to that described above in detail. Since the double layer capacitor 12 described is variable in shape and capable of contouring as an energy storage element, the available space or the area in the cell phone shell 11 can be used optimally.
  • the shape of the double-layer capacitor 12 according to the invention can be adapted to any contours.
  • a similar space-saving arrangement of the double-layer capacitor described above is possible in the case of miniaturized “inner-ear” hearing aids in which the housing and its surface contour have a complex shape.
  • the electrodes and / or the current collector and / or the electrolyte can be produced with a screen printing process or onto the base such as a housing, printed circuit board, circuit board or the like. , are applied. It is also possible to produce the electrodes and / or the current collectors and / or the electrolyte in a spraying process. If necessary, this can be done with a modified ink jet printer. Furthermore, it is possible for the electrodes and / or the current collectors and / or the electrolyte to be printed by printing processes such as pad printing or the like. , by dipping or by slip casting.
  • the described method can also be used to generate double-layer capacitors for SMD technology inline.
  • space-saving double-layer capacitors can be integrated as energy storage elements in thin-film technology on any surface of housings.

Abstract

Les condensateurs à deux couches sont constitués habituellement d'une cathode et d'une anode servant d'élément d'accumulation d'énergie comportant des électrodes placées l'une en face de l'autre ainsi qu'un l'électrolyte situé entre ces dernières. Le condensateur à deux couches selon l'invention se présente sous la forme d'un élément à couche mince. L'épaisseur des électrodes est comprise entre 5 et 500 νm, ce qui permet d'obtenir une épaisseur totale de l'élément inférieure à 1 mm. L'élément d'accumulation d'énergie peut être monté directement dans un boîtier (1) ou sur une paroi de boîtier d'un appareil à alimenter, notamment un téléphone portable (10), dans lequel un condensateur à deux couches (12) est intégré, sous la forme d'un élément d'accumulation d'énergie de secours, dans une coque (11) de téléphone portable.
PCT/EP2004/007953 2003-07-18 2004-07-16 Condensateur electrochimique a deux couches, son procede de production et appareil equipe d'un tel condensateur a deux couches WO2005010458A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04741089A EP1647039A2 (fr) 2003-07-18 2004-07-16 Condensateur electrochimique a deux couches, son procede de production et appareil equipe d'un tel condensateur a deux couches

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10332791.6 2003-07-18
DE2003132791 DE10332791A1 (de) 2003-07-18 2003-07-18 Elektrochemischer Doppelschichtkondensator und Verfahren zu dessen Herstellung

Publications (2)

Publication Number Publication Date
WO2005010458A2 true WO2005010458A2 (fr) 2005-02-03
WO2005010458A3 WO2005010458A3 (fr) 2005-04-21

Family

ID=34071770

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/007953 WO2005010458A2 (fr) 2003-07-18 2004-07-16 Condensateur electrochimique a deux couches, son procede de production et appareil equipe d'un tel condensateur a deux couches

Country Status (3)

Country Link
EP (1) EP1647039A2 (fr)
DE (1) DE10332791A1 (fr)
WO (1) WO2005010458A2 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019209236A1 (de) 2019-06-26 2020-12-31 Airbus Operations Gmbh Netzteil und elektrisches Bordnetz eines Luft- oder Raumfahrzeugs

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5426561A (en) * 1992-09-29 1995-06-20 The United States Of America As Represented By The United States National Aeronautics And Space Administration High energy density and high power density ultracapacitors and supercapacitors
US6197450B1 (en) * 1998-10-22 2001-03-06 Ramot University Authority For Applied Research & Industrial Development Ltd. Micro electrochemical energy storage cells
US20010032666A1 (en) * 2000-03-24 2001-10-25 Inegrated Power Solutions Inc. Integrated capacitor-like battery and associated method
DE10060653A1 (de) * 2000-12-06 2002-06-20 Epcos Ag Elektrischer Doppelschicht-Kondensator
US6477035B1 (en) * 2001-10-10 2002-11-05 Lockheed Martin Corporation Integrally formed energy storage device and method of fabrication
US20030026063A1 (en) * 1999-11-25 2003-02-06 Lithiun Power Technologies, Inc. Electrochemical capacitor and methods of fabricating same
US6576365B1 (en) * 1999-12-06 2003-06-10 E.C.R. - Electro Chemical Research Ltd. Ultra-thin electrochemical energy storage devices

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0845793A (ja) * 1994-08-02 1996-02-16 Asahi Glass Co Ltd 電気二重層コンデンサ
DE60125941T2 (de) * 2001-09-25 2007-10-11 Luxon Energy Devices Corp., Chutung Elektrochemischer Kondensator und Verfahren zu seiner Herstellung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5426561A (en) * 1992-09-29 1995-06-20 The United States Of America As Represented By The United States National Aeronautics And Space Administration High energy density and high power density ultracapacitors and supercapacitors
US6197450B1 (en) * 1998-10-22 2001-03-06 Ramot University Authority For Applied Research & Industrial Development Ltd. Micro electrochemical energy storage cells
US20030026063A1 (en) * 1999-11-25 2003-02-06 Lithiun Power Technologies, Inc. Electrochemical capacitor and methods of fabricating same
US6576365B1 (en) * 1999-12-06 2003-06-10 E.C.R. - Electro Chemical Research Ltd. Ultra-thin electrochemical energy storage devices
US20010032666A1 (en) * 2000-03-24 2001-10-25 Inegrated Power Solutions Inc. Integrated capacitor-like battery and associated method
DE10060653A1 (de) * 2000-12-06 2002-06-20 Epcos Ag Elektrischer Doppelschicht-Kondensator
US6477035B1 (en) * 2001-10-10 2002-11-05 Lockheed Martin Corporation Integrally formed energy storage device and method of fabrication

Also Published As

Publication number Publication date
WO2005010458A3 (fr) 2005-04-21
DE10332791A1 (de) 2005-02-17
EP1647039A2 (fr) 2006-04-19

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