EP2789035A1 - Procédé et système de fabrication d'objets en forme de feuilles ou de plaques - Google Patents

Procédé et système de fabrication d'objets en forme de feuilles ou de plaques

Info

Publication number
EP2789035A1
EP2789035A1 EP12788451.8A EP12788451A EP2789035A1 EP 2789035 A1 EP2789035 A1 EP 2789035A1 EP 12788451 A EP12788451 A EP 12788451A EP 2789035 A1 EP2789035 A1 EP 2789035A1
Authority
EP
European Patent Office
Prior art keywords
object side
electrode
separator surface
separator
surface structure
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Withdrawn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
EP12788451.8A
Other languages
German (de)
English (en)
Inventor
Tim Schaefer
Steffen Legner
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.)
Li Tec Battery GmbH
Original Assignee
Li Tec Battery 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 Li Tec Battery GmbH filed Critical Li Tec Battery GmbH
Publication of EP2789035A1 publication Critical patent/EP2789035A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/3568—Modifying rugosity
    • B23K26/3584—Increasing rugosity, e.g. roughening
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/352—Working by laser beam, e.g. welding, cutting or boring for surface treatment
    • B23K26/3568—Modifying rugosity
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/0011—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for shaping plates or sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/04—Processes of manufacture in general
    • H01M4/0471—Processes of manufacture in general involving thermal treatment, e.g. firing, sintering, backing particulate active material, thermal decomposition, pyrolysis
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/139—Processes of manufacture
    • H01M4/1391—Processes of manufacture of electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/5825—Oxygenated metallic salts or polyanionic structures, e.g. borates, phosphates, silicates, olivines
    • 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
    • Y10T29/4998—Combined manufacture including applying or shaping of fluent 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24355—Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]

Definitions

  • the present invention relates to a method and a system for the production of sheet-like or plate-shaped objects, in particular for the production of electrodes for the construction of an electrochemical energy store or of parts of such electrodes.
  • electrochemical energy storage batteries primary storage
  • accumulators secondary storage
  • Primary storage is typically charged only once and disposed of after discharge, while secondary storage allows multiple (from a few 100 to over 10,000) cycles of charge and discharge. It should be noted in this context that, especially in the motor vehicle sector, rechargeable batteries are also referred to as batteries.
  • the electrodes are needed in a very large number, which is why there is a need for high-quality, effective and cost-effective manufacturing processes. It is therefore an object of the present invention to provide an improved method and system for producing sheet or plate-shaped objects.
  • This object is achieved in a method for producing sheet-like or plate-shaped objects having at least one active area, in particular for the production of electrodes for the construction of an electrochemical energy store, preferably designed for use in a motor vehicle, or of parts of such electrodes, wherein the sheet-shaped or plate-shaped objects have a first object side and a second object side opposite the first object side, achieved in that the production method comprises the step: changing the roughness of the active surface on the first object side by means of a first radiation device, in particular a first laser device.
  • a first radiation device in particular a first laser device.
  • Another advantage is that the capacity of the cells can be increased.
  • An additional advantage is that by widening the surface better wetting with the electrolyte can be achieved.
  • Another advantage is that a shortening of the filling times with the electrolyte can be achieved.
  • Another advantage is that the discharge rates can be increased.
  • An additional advantage is that the enlargement of the surface allows higher currents.
  • an "electrochemical energy store” is to be understood as meaning any type of energy store from which electrical energy can be withdrawn, wherein an electrochemical reaction takes place in the interior of the energy store
  • the term comprises energy stores of all kinds, in particular primary batteries and secondary batteries
  • the electrochemical energy storage device has at least one
  • the plurality of electrochemical cells may be connected in parallel to store a larger amount of charge, or may be connected in series to provide a desired operating voltage, or may be a combination of parallel and series connection.
  • an “electrochemical cell” is meant a device which serves to deliver electrical energy storing the energy in a chemical form
  • the cell is also designed to receive electrical energy, convert it to chemical energy, and
  • the shape (ie in particular the size and the geometry) of an electrochemical cell can be selected depending on the available space.
  • the electrochemical cell is substantially prismatic or cylindrical.
  • the present invention can be advantageously used in particular for electrochemical cells. referred to as pouch cells or coffeebag cells without the electrochemical cell of the present invention being restricted to this application.
  • Such an electrochemical cell usually has an electrode stack, which is at least partially enclosed by an envelope.
  • an "electrode stack” is to be understood as meaning an arrangement of at least two electrodes and an electrolyte arranged therebetween.
  • the electrolyte may be partially accommodated by a separator, the separator then separating the electrodes.
  • the electrode stack has a plurality of layers of electrodes and electrodes Separators, wherein the electrodes of the same polarity in each case preferably electrically mit- connected to each other, in particular, are connected in parallel.
  • the electrodes are for example plate-shaped or foil-like and are preferably arranged substantially parallel to one another (prismatic energy storage cells).
  • the electrode stack can also be wound and have a substantially cylindrical shape (cylindrical energy storage cells).
  • the term "electrode stack” is also intended to include such electrode windings
  • the electrode stack may also comprise lithium or another alkali metal in ionic form.
  • a "sheet-like or plate-shaped object” is to be understood as meaning a substantially flat article, preferably a thin flat article
  • the first and the second object sides respectively form the surface of such a flat article, wherein the first and the second object sides preferably extend substantially parallel to one another without
  • the first and second object pages can in principle assume any desired shapes, preferably the first and the second object pages are each selected to be essentially rectangular; In this case, the object has a total of four side surfaces, wherein adjacent side surfaces are arranged substantially perpendicular to each other.
  • the thickness of the objects is basically arbitrary, it ranges preferably from film thickness to plate thickness.
  • the first object side of the object may also be referred to as the object top side, and the second object side of the object may also be referred to as the object bottom side, or vice versa.
  • the manufacturing method comprises the step of: removing active material on the active surface on the first object side of the electrode.
  • the step of removing material on the first object side of the electrode is performed by laser scanning.
  • the step of removing material on the first object side of the electrode is performed such that a first electrode surface structure is caused on the first object side of the electrode, which is opposite to a first separator surface structure of a first one in the assembled state of the first object side of the electrode first separator surface of a separator is adjusted.
  • the manufacturing method comprises the step of: detecting the first separator surface structure of the first separator surface opposite the first object side of the electrode in the assembled state, wherein preferably, the step of changing the roughness of the active surface is performed on the first object side depending on the detected first separator surface structure.
  • the manufacturing method comprises at least one of the following steps: applying the first separator surface structure of the first in the assembled state of the first object side of the electrode opposite separator surface before the step of changing the roughness of the active surface on the first object side of the electrode or applying the first separator surface structure of the first in the assembled state of the first object side of the electrode opposite separator surface after the step of changing the roughness of the active surface on the first object side of the electrode ,
  • the manufacturing method comprises the step of: changing the roughness of the active surface on the second object side by means of a second radiation device, in particular a second laser device.
  • the manufacturing method comprises the step: a removal of active material on the active surface on the second object side of the electrode.
  • the step of removing material on the second object side of the electrode is performed by laser scanning.
  • the step of removing material on the second object side of the electrode is performed such that on the second object side of the electrode, a second electrode surface structure is effected, which is second to a second separator surface structure of a second in the assembled state of the second object side of the electrode Separator surface of a separator is adjusted.
  • the manufacturing method comprises the step of: detecting the second separator surface structure of the second separator surface opposing the second object side of the electrode in the assembled state, preferably wherein the step of changing the roughness of the active surface on the second object side is performed in response to the detected second separator surface structure ,
  • the manufacturing method comprises at least one of the following steps: applying the second separator surface structure of second separator surface opposed to the second object side of the electrode in the assembled state before the step of changing the roughness of the active surface on the second object side of the electrode or applying the second separator surface structure of the second separator surface opposite to the second object side of the electrode after the step of Changing the roughness of the active surface on the second object side of the electrode.
  • the first and / or the second laser device preferably has a laser, preferably a carbon dioxide laser, with at least one of the following parameters: a focal spot size smaller than 100 [im and / or an operating wavelength smaller than 1070 nm.
  • This process is also suitable for continuous production processes in continuous production lines.
  • the method is also suitable for producing a very large number of objects. Thus, it offers particular advantages for the production of electrodes or separators for the construction of electrochemical energy storage.
  • the first and second radiation devices are preferably two different, separate devices, but may alternatively be one and the same device.
  • a material may be selected from a group comprising:
  • the object of the invention is based on a system for producing sheet-like or plate-shaped objects having at least one active surface, in particular for producing electrodes for constructing an electrochemical energy store or parts of such electrodes, wherein the sheet-like or plate-shaped objects have a first object side and a second object side opposite the first object side, achieved in that the production system comprises a first radiation device, in particular a first laser device, which is arranged and configured such that it indicates the roughness of the active surface the first object side of the electrode can change.
  • a first radiation device in particular a first laser device
  • the first laser device for removing active material is arranged and configured on the active surface of the first object side of the electrode by means of laser scanning.
  • the production system preferably has a first detection unit, which is arranged and designed to detect a first separator surface structure of a first separator surface.
  • the manufacturing system comprises a first separator surface structuring device arranged and configured to apply a first separator surface structure to the first separator surface.
  • the production system preferably has a second radiation device, in particular a second laser device, which is arranged and configured such that it can change the roughness of the active surface on the second object side of the electrode.
  • the second laser device for removing active material is arranged and configured on the active surface of the second object side of the electrode by means of laser scanning.
  • the production system preferably has a second detection unit, which is arranged and designed to detect a second separator surface structure of a second separator surface.
  • the manufacturing system has a second separator surface structuring device arranged and configured to apply a second separator surface structure to the second separator surface.
  • the first and / or the second laser device preferably has a laser, preferably a carbon dioxide laser, with at least one of the following parameters: a focal spot size of less than 100 [im and / or an operating wavelength of less than 1070 nm.
  • the present invention also relates to an electric cell for an electrochemical energy storage device with electrodes, which has been produced according to a production method mentioned above and / or produced by means of a production system mentioned above.
  • this object is achieved in a sheet- or plate-shaped object, in particular in an electrode for establishing an electrochemical, preferably designed for use in a motor vehicle energy storage or parts of such electrodes, wherein the sheet or plate-shaped object is a first Object side and one of the first object side opposite the second object side has, achieved in that the sheet or plate-shaped object has been prepared by one of the above methods and / or has been prepared with one of the above-mentioned manufacturing systems.
  • 2a is a plan view of an active area of an electrode treated according to the invention by means of scanning tunneling microscopy
  • 2b is a plan view of an untreated active surface of an electrode by means of scanning tunneling microscopy
  • Fig. 3a is a perspective view of a treated according to the invention
  • FIG. 3b is a perspective view of an untreated active surface of a
  • Fig. 1 shows an embodiment of a manufacturing method according to the present invention.
  • a change in the roughness of the active surface on the first object side by means of a first radiation device, in particular a first laser device is performed in a step S3.1.
  • a change in the roughness of the active surface on the second object side is preferably carried out by means of a second radiation device, in particular a second laser device, wherein the first and second radiation device are preferably two different, separate devices. Alternatively, it can also be one and the same device.
  • the steps S3.1 of changing the roughness of the active surface on the first object side and S3.2 of changing the roughness of the active surface on the second object side may include a step S3.1a of removing active material on the active surface on the first object side of the electrode or a step S3.2a of the removal of active material on the active surface on the second object side of the electrode. According to a preferred embodiment shown in FIG.
  • the method previously comprising both a step S2.1 of detecting the first separator surface structure of the first separator surface opposite the first object side of the electrode in the assembled state, wherein preferably the step S3.1 of changing the roughness of the active surface on the first object side as a function of the detected first separator surface structure is performed as well as a step S2.2 of detecting the second separator surface structure of the second second separator surface opposite the second object side of the electrode, preferably step S3.2 of changing the roughness of the active surface on the second object side in dependence is performed by the detected second separator surface structure.
  • the method may comprise a step S1.1 of applying a first separator surface structure of the first separator surface opposite the first object side of the electrode in the assembled state prior to the step S3.1 of changing the roughness of the active surface on the first object side of the electrode or a step S1.2 of depositing a second separator surface structure of the second separator surface opposed to the second object side of the electrode in the assembled state before the step S3.2 of changing the roughness of the active surface on the second object side of the electrode.
  • the method may include a step S4.1 of applying a first separator surface structure of the first separator surface opposite the first object side of the electrode after the step S3.1 of changing the roughness of the active surface on the first object side of the electrode or a step S4.2 of applying the second separator surface structure of the second in the assembled state of the second object side of the electrode opposite lying separator surface after the step S3.2 of changing the roughness of the active surface on the second object side of the electrode.
  • FIGS. 2a and 3a show a top view by means of scanning tunneling microscopy on an active surface treated according to the invention or a perspective view by scanning tunneling microscopy on an active surface of an electrode treated according to the invention
  • FIGS. 2b and 3b show a top view by means of scanning tunneling microscopy on an untreated active surface of an electrode or a perspective view on an untreated active surface of an electrode by scanning tunneling microscopy show.
  • the treated electrode surfaces have an improved roughening with a finer surface structure and thus an enlargement of the active surface, which improves the wetting with electrolytes and An extension of the service life can be achieved.
  • the filling times can be reduced with the electrolyte.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

Système de fabrication d'objets en forme de feuilles ou de plaques présentant au moins une surface active, en particulier de fabrication d'électrodes pour la production d'un accumulateur d'énergie électrochimique, destiné à être utilisé de préférence dans un véhicule à moteur, ou de fabrication de parties de ces électrodes, lesdits objets en forme de feuilles ou de plaques comportant une première face et une seconde face opposée à la première face. Le système de fabrication comporte un premier dispositif de rayonnement, en particulier un premier dispositif laser, placé et conçu de sorte qu'il peut modifier la rugosité de la surface active sur la première face de l'électrode. La présente invention concerne en outre un procédé de fabrication d'objets en forme de feuilles ou de plaques présentant au moins une surface active, en particulier de fabrication d'électrodes pour la production d'un accumulateur d'énergie électrochimique, destiné à être utilisé de préférence dans un véhicule à moteur, ou de fabrication de parties de ces électrodes, lesdits objets en forme de feuilles ou de plaques comportant une première face et une seconde face opposée à la première face. Ledit procédé de fabrication comprend l'étape consistant à modifier la rugosité de la surface active sur la première face de l'objet à l'aide d'un premier dispositif de rayonnement, en particulier d'un premier dispositif laser.
EP12788451.8A 2011-12-05 2012-11-20 Procédé et système de fabrication d'objets en forme de feuilles ou de plaques Withdrawn EP2789035A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201161566719P 2011-12-05 2011-12-05
DE102011120278A DE102011120278A1 (de) 2011-12-05 2011-12-05 Verfahren und System zur Herstellung von blatt- oder plattenförmigen Objekten
PCT/EP2012/004804 WO2013083233A1 (fr) 2011-12-05 2012-11-20 Procédé et système de fabrication d'objets en forme de feuilles ou de plaques

Publications (1)

Publication Number Publication Date
EP2789035A1 true EP2789035A1 (fr) 2014-10-15

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EP12788451.8A Withdrawn EP2789035A1 (fr) 2011-12-05 2012-11-20 Procédé et système de fabrication d'objets en forme de feuilles ou de plaques

Country Status (4)

Country Link
US (1) US20130171412A1 (fr)
EP (1) EP2789035A1 (fr)
DE (1) DE102011120278A1 (fr)
WO (1) WO2013083233A1 (fr)

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DE102013221592A1 (de) * 2013-10-24 2015-05-13 Thyssenkrupp System Engineering Gmbh Verfahren und Vorrichtung zur Prüfung einer Elektrode und Verfahren zur Herstellung eines Energiespeichers
CN110524116B (zh) * 2019-08-29 2024-05-07 辽宁中蓝光电科技有限公司 一种提升手机用镜头消杂光性能的激光毛化方法

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JP2005158397A (ja) * 2003-11-25 2005-06-16 Ngk Spark Plug Co Ltd リチウム電池およびその製造方法
JP3799049B2 (ja) * 2004-05-12 2006-07-19 三井金属鉱業株式会社 非水電解液二次電池用負極及びその製造方法
US20090035664A1 (en) * 2007-05-25 2009-02-05 Massachusetts Institute Of Technology Batteries and electrodes for use thereof
DE102010055053A1 (de) * 2010-12-17 2012-06-21 Li-Tec Battery Gmbh Verfahren und System zur Herstellung von blatt- oder plattenförmigen Objekten

Also Published As

Publication number Publication date
US20130171412A1 (en) 2013-07-04
DE102011120278A1 (de) 2013-06-06
WO2013083233A1 (fr) 2013-06-13

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