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WO2016193000A1 - Composition de revêtement contenant de l'oxyde d'aluminium et procédé de revêtement de séparateurs avec cette composition - Google Patents

Composition de revêtement contenant de l'oxyde d'aluminium et procédé de revêtement de séparateurs avec cette composition Download PDF

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Publication number
WO2016193000A1
WO2016193000A1 PCT/EP2016/061185 EP2016061185W WO2016193000A1 WO 2016193000 A1 WO2016193000 A1 WO 2016193000A1 EP 2016061185 W EP2016061185 W EP 2016061185W WO 2016193000 A1 WO2016193000 A1 WO 2016193000A1
Authority
WO
WIPO (PCT)
Prior art keywords
acid
dispersion
weight
coating composition
alumina
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.)
Ceased
Application number
PCT/EP2016/061185
Other languages
German (de)
English (en)
Inventor
Wolfgang Lortz
Daniel ESKEN
Herbert Habermann
Christian Hofmann
Gabriele BERGMANN
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.)
Evonik Operations GmbH
Original Assignee
Evonik Degussa 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 Evonik Degussa GmbH filed Critical Evonik Degussa GmbH
Publication of WO2016193000A1 publication Critical patent/WO2016193000A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/60—Additives non-macromolecular
    • C09D7/61—Additives non-macromolecular inorganic
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
    • C09D7/40—Additives
    • C09D7/66—Additives characterised by particle size
    • C09D7/67—Particle size smaller than 100 nm
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/403—Manufacturing processes of separators, membranes or diaphragms
    • 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
    • H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
    • H01M50/409—Separators, membranes or diaphragms characterised by the material
    • H01M50/449—Separators, membranes or diaphragms characterised by the material having a layered structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
    • C08K3/20—Oxides; Hydroxides
    • C08K3/22—Oxides; Hydroxides of metals
    • C08K2003/2227—Oxides; Hydroxides of metals of aluminium
    • 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

  • the invention relates to a coating composition obtainable by mixing an alumina-containing dispersion and a binder.
  • the invention further relates to a method for coating a membrane by means of this coating composition.
  • the invention relates to the use of the alumina-containing dispersion for producing a coating composition for a separator of an electrochemical cell and the coating of powdered cathode materials.
  • polymer membranes are used. Their essential task is to separate the cathode and anode from each other and to maintain the ion conduction. The heat resistance of the polymer membrane is limited. You try to increase them by coating them.
  • WO2009 / 079889 discloses a process for producing a non-woven fabric-reinforced polymer membrane in which a colloidal polymer emulsion is treated for several hours in a ball mill.
  • the colloidal polymer emulsion is prepared by copolymerizing 100 parts of a water-soluble polymer, 30-500 parts of a hydrophobic monomer, 0-200 parts of a hydrophilic monomer, and 1-5 parts of an initiator.
  • the emulsion thus prepared is added with 0-100% of an inorganic filler and 20-100% of a plasticizer to give a slurry.
  • Suitable plasticizers are alkyl phosphates, as inorganic fillers are metal oxides in question.
  • the slurry thus obtained is coated on both sides of a nonwoven fabric and dried.
  • a disadvantage of this procedure is that the entire, containing filler and plasticizer, colloidal polymer emulsion must be ground. This is time consuming and large volumes must be moved.
  • a separator for an electrochemical cell which is a porous
  • the porous layer is formed by a block copolymer having three or more polymer blocks.
  • alumina of the formula Al2O3 x H2O ⁇ is used with x from 0 to 1; 5.
  • a water-containing material is used. This includes aluminas and hydroxides called alpha or gamma alumina.
  • the BET surface area is preferably in the range of 10 to 250 m 2 / g.
  • These primary particles can be grouped together to form a secondary structure.
  • the resulting secondary particles preferably have a particle size of 50 nm to 2000 nm. Fumed aluminum oxides should also be usable.
  • the alumina is provided in the form of a dispersion, which may also contain inorganic or organic acids.
  • a first step is to produce by means of a high energy mill a dispersion comprising the metal oxide, solvent, phosphoric acid, phosphorous acid, hypophosphorous acid, phosphonic acid, sulfonic acid,
  • Sulfuric acid, sulfuric acid, boric acid and oxygen acids based on tin and bismuth compounds Explicitly disclosed is a dispersion containing about 35% by weight.
  • the object of the present invention was to provide a coating composition with a high proportion of aluminum oxide, which has advantages over the prior art in terms of viscosity, stability and processability.
  • the object of the invention was also to provide an alumina-containing dispersion for the preparation of a coating composition.
  • the invention relates to a coating composition obtainable by mixing an alumina-containing dispersion and a binder, wherein
  • a liquid phase which consists of at least 90% by weight of one or more organic solvents having a boiling point of 50 ° C to 250 ° C and wherein the organic solvent consists of more than 90% by weight of one or more C 1 -C 4 -alcohols,
  • f) from the group consisting of polyethylene oxide, polyvinylidene fluoride, polyvinylidene chloride, polytetrafluoroethylene, polyacrylonitrile, polyimides, polyetheretherketone,
  • Hexafluoropropylen copolymer polyvinylidene fluoride / chlorotrifluoroethylene copolymer, and mixtures thereof is selected, and
  • g is present as a solution or dispersion in an organic solvent having a boiling point of 50 ° C to 250 ° C, and
  • the weight ratio of alumina / binder is 50:50 to 95: 5.
  • the alumina is in the form of aggregated primary particles.
  • the primary particles are non-porous and have hydroxyl groups on their surface.
  • the alumina is preferably obtained by a pyrogenic process. These are organic or inorganic
  • Aluminum compounds usually reacted in a hydrogen / oxygen flame.
  • the alumina comprises as crystalline phases chi, kappa, gamma, delta and theta
  • Alumina In addition to these crystalline constituents, small amounts of amorphous aluminum oxide may also be present.
  • the main constituent is preferably gamma-alumina or mixtures of gamma-alumina with delta-alumina and / or theta-alumina.
  • the alumina-containing dispersion does not contain alpha alumina. It has a BET surface area of 20-200 m 2 / g, preferably 50-150 m 2 / g, more preferably 90-1 10 m 2 / g or 50-80 m 2 / g. The BET surface area is determined according to DIN 66131.
  • the aluminum oxide particles in the dispersion have an average particle diameter d 50 of at most 100 nm, preferably 50-100 nm. It can be determined by the usual methods of light scattering known to those skilled in the art for determining particle size distributions in dispersions, such as dynamic light scattering, for example by means of a Zetasizer series instrument from Malvern Instruments.
  • the liquid phase of the dispersion is intended to include the organic solvent, as well as phosphoric acid, organophosphonic acid and sulfonic acid.
  • the proportion of the liquid phase is at most 60% by weight, based on the dispersion, preferably 40-60% by weight.
  • the liquid phase may also contain small amounts of water. This is true when, for example, aqueous
  • Solutions of organophosphonic acid and / or sulfonic acid are used.
  • the proportion of water is not more than 3 wt .-%.
  • the solvent should have a certain volatility, the boiling point is therefore 50 ° C to 250 ° C, preferably 60 to 100 ° C.
  • the proportion of the solvent in the liquid phase is at least 90% by weight, preferably more than 95% by weight.
  • Suitable organic solvents are alcohols, esters, ethers, ketones, amides and hydrocarbons.
  • Explicit are methanol, ethanol, isopropanol, n-propanol, butanol, diethyl ether,
  • Particularly preferred is ethanol.
  • Trimethyl phosphate triethyl phosphate, tri-n-propyl phosphate, triisopropyl phosphate,
  • Methyldiethylphosphat are in the liquid phase of the dispersion to a maximum of 10 wt .-% before.
  • the dispersion is preferably free of alkyl phosphates.
  • Another essential ingredient of the dispersion is a mineral acid and / or a C1-C5 carboxylic acid.
  • the carboxylic acid may also be a hydroxycarboxylic acid or a dicarboxylic acid. Hydrochloric acid, sulfuric acid, nitric acid, phosphoric acid, formic acid, acetic acid and 2-hydroxysuccinic acid may be mentioned explicitly. Particular preference is given to using phosphoric acid.
  • the mineral acid or d-Cs-carboxylic acid has a proportion of 1 to 5 wt .-%, preferably 2 to 4 wt .-%.
  • Another essential component of the dispersion is an organophosphonic acid. This may be an organophosphonic according to the general formula RR 2 N- (X-NY) a -X-NR 3 R 4 , with
  • X C 1 -C 10 -alkyl radical
  • Y (XN) b
  • a and b are each independently 0 - 2500. Examples of preferred
  • Organophosphonic acids having this structure are ethylenediamine tetramethylenephosphonic acid,
  • Diethylenetriaminepentamethylenephosphonic acid hydroxyethylethylenediaminetrimethylenephosphonic acid, pentaethylenehexaminoctamethylenephosphonic acid, hexamethylenediamine tetramethylenephosphonic acid, diethylenetriamine monocarboxymethyltetramethylenephosphonic acid and / or salts thereof.
  • R 3 C 1 -C 6 -alkylene radical or R and R 3 together with the C-atom to which they are attached form an aromatic ring, where R 2 is absent in this case. Examples more preferred
  • Organophosphonic acids having this structure are 2-amino-1-phenethylphosphonic acid,
  • hydroxyethylaminobis methylenephosphonic acid
  • Another essential ingredient of the dispersion is a sulfonic acid. This is preferably selected from the group consisting of methanesulfonic acid, dodecylsulfonic acid,
  • the binder of the present invention is polyethylene oxide
  • Polyvinylidene fluoride polyvinylidene chloride, polytetrafluoroethylene, polyacrylonitrile, polyimides,
  • Polyetheretherketone polymethyl methacrylate, polytetraethylene glycol diacrylate, polyvinylidene fluoride / hexafluoropropylene copolymer, polyvinylidene fluoride / chlorotrifluoroethylene copolymer, and
  • the binder is as a solution or dispersion in an organic solvent
  • Solvent with a boiling point of 50 ° C to 250 ° C before is the same, which are also suitable as solvents for the dispersion.
  • the solvent of the dispersion and the binder may be the same or different. While the solvent in the dispersion has only small amounts of alkyl phosphate, the
  • Solvent of the binder partially or entirely consist of alkyl phosphates.
  • the solvents of the dispersion and the binder should be adjusted so that only forms a liquid phase.
  • Another object of the invention is a method for coating a membrane, wherein the dispersion of the invention is applied to a membrane and the organic solvent and optionally water is removed.
  • Another object of the invention is the use of an alumina-containing dispersion for producing a coating composition for a separator of an electrochemical cell or the coating of powdered cathode materials, wherein the alumina-containing dispersion
  • a liquid phase which consists of at least 90 wt .-% of one or more organic solvents having a boiling point of 50 ° C to 250 ° C, wherein the liquid phase has a proportion of alkyl phosphates of a maximum 10 wt .-%, wherein the organic
  • Solvent consists of more than 90 wt .-% of one or more Ci-C4 alcohols, c) 1 to 5 wt .-% phosphoric acid, and
  • the alumina is in the form of aggregated primary particles.
  • the primary particles are non-porous and have hydroxyl groups on their surface.
  • the alumina is preferably obtained by a pyrogenic process. These are to be understood as flame hydrolysis and / or flame oxidation. In this case, organic or inorganic aluminum compounds are usually reacted in a hydrogen / oxygen flame.
  • the alumina comprises as crystalline phases chi-, kappa, gamma, delta and theta alumina. In addition to these crystalline constituents, small amounts of amorphous aluminum oxide may also be present.
  • the main constituent is preferably gamma-alumina or mixtures of gamma-alumina with delta-alumina and / or theta-alumina. In the alumina-containing dispersion of the present invention, no alpha-alumina is detectable.
  • the aluminum oxide has a BET surface area of 20 to 200 m 2 / g, preferably 50 to 150 m 2 / g, particularly preferably 90-1 10 m 2 / g or 50-80 m 2 / g.
  • the BET surface area is determined according to DIN 66131.
  • the aluminum oxide particles in the dispersion have an average particle diameter d 50 of at most 100 nm, preferably 50-100 nm. It can be determined by the usual methods of light scattering known to those skilled in the art for determining particle size distributions in dispersions, such as dynamic light scattering, for example by means of a Zetasizer series instrument from Malvern Instruments.
  • the liquid phase of the dispersion is said to be the organic solvent, as well as phosphoric acid,
  • Organophosphonic acid and sulfonic acid include.
  • the proportion of the liquid phase is at most 60% by weight, based on the dispersion, preferably 40-60% by weight.
  • the liquid phase may also contain small amounts of water. This applies if, for example, aqueous solutions of the organophosphonic acid and / or sulfonic acid are used.
  • the proportion of water is not more than 3% by weight.
  • the solvent should have a certain volatility, the boiling point is therefore 50 ° C to 250 ° C, preferably 60 to 100 ° C.
  • the proportion of the solvent in the liquid phase is at least 90% by weight, preferably more than 95% by weight.
  • Suitable organic solvents are alcohols, esters, ethers, ketones, amides and hydrocarbons.
  • Explicit are methanol, ethanol, isopropanol, n-propanol, butanol, diethyl ether,
  • Particularly preferred is ethanol.
  • Trimethyl phosphate triethyl phosphate, tri-n-propyl phosphate, triisopropyl phosphate,
  • Methyldiethylphosphat are in the liquid phase of the dispersion to a maximum of 10 wt .-% before.
  • the dispersion is preferably free of alkyl phosphates.
  • Another essential ingredient of the dispersion is a mineral acid and / or a
  • Ci-Cs-carboxylic acid may also be a hydroxycarboxylic acid or a
  • Be dicarboxylic acid Explicitly mentioned are hydrochloric acid, sulfuric acid, nitric acid,
  • Called phosphoric acid formic acid, acetic acid and 2-hydroxysuccinic acid. Particular preference is given to using phosphoric acid.
  • the mineral acid or C 1 -C 8 -carboxylic acid has a proportion of 1 to 5% by weight, preferably 2 to 4% by weight.
  • organophosphonic acid Another essential component of the dispersion is an organophosphonic acid.
  • This may be an organophosphonic according to the general formula RR 2 N- (X-NY) a -X-NR 3 R 4 , with
  • X C 1 -C 10 -alkyl radical
  • Y (XN) b
  • a and b are each independently 0 - 2500. Examples of preferred
  • Organophosphonic acids having this structure are ethylenediamine tetramethylenephosphonic acid, diethylenetriaminepentamethylenephosphonic acid, hydroxyethylethylenediaminetrimethylenephosphonic acid, pentaethylenehexaminoctamethylenephosphonic acid, hexamethylenediamine tetramethylenephosphonic acid, diethylenetriamine monocarboxymethyltetramethylenephosphonic acid and / or salts thereof.
  • R 3 C 1 -C 6 -alkylene radical or R and R 3 together with the C-atom to which they are attached form an aromatic ring, where R 2 is absent in this case. Examples more preferred
  • Organophosphonic acids having this structure are 2-amino-1-phenethylphosphonic acid,
  • hydroxyethylaminobis methylenephosphonic acid
  • Example 1 Aluminum oxide-containing dispersion
  • This predispersion was passed in two passes through the high-energy mill Sugino Ultimaizer HJP-25050 at a pressure of 2500 bar and diamond nozzles of 0.25 mm diameter, thus further intensively ground.
  • the proportion of aluminum oxide is 40 wt .-%
  • a particle size dso of 80 nm was determined by light scattering (Zetasizer 3000 Hsa, Malvern Instruments, UK).
  • the three coating compositions shown in Table 1 are prepared by combining appropriate amounts of the dispersion of Example 1, a 5% by weight mixture, PVDF (Arkema, "Kynar Superflex 2500-20") in ethanol and appropriate amounts of ethanol.
  • the coating composition is ⁇ by die method on a polypropylene LIB Separator "2500", Celgard ®, thickness 25 is applied.
  • the separator is at a distance of 10 ⁇ adjusted to the slot.
  • the slot is then at a speed of 0.4 m / min along the separator and the coating composition at a flow rate of 0.5 to 1 ml / min, depending on the desired layer thickness, followed by drying at a temperature of 50 ° C. for 2 hours.
  • the so-coated separators show little shrinkage under thermal stress and no adverse effect on the pore structure.
  • coating composition according to the invention which contains high proportions of aluminum oxide, suitable coatings of separators can be produced cost-effectively.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Nanotechnology (AREA)
  • Paints Or Removers (AREA)
  • Cell Separators (AREA)

Abstract

L'invention concerne une composition de revêtement obtenue par mélange d'une dispersion contenant de l'oxyde d'aluminium et d'un liant, dans laquelle A) la dispersion contenant de l'oxyde d'aluminium a) comprend au moins 40% en poids d'oxyde d'aluminium sous la forme de particules primaires agglomérées présentant une surface BET comprise entre 20 et 200 m 2/g et un diamètre moyen de particules d50 inférieur à 100 nm dans la dispersion, b) est composée d'au maximum 60% en poids d'une phase liquide, composée au moins à 90% en poids d'un ou de plusieurs solvants organiques présentant un point d'ébullition compris entre 50°C et 250°C, le solvant organique étant composé à plus de 90% en poids d'un ou de plusieurs alcools C1-C4, c) contient 1 à 5% en poids d'au moins un acide minéral et/ou un acide carbonique C1-C5, d) contient 0,1 à 1% en poids d'au moins un acide organophosphonique e) 0,1 à 1% en poids d'au moins un acide sulfonique et/ou de son sel, et B) le liant f) est choisi dans le groupe composé d'oxyde de polypropylène, de fluorure de polyvinylidène, de chlorure de polyvinylidène, de polytétrafluoréthylène, de polyacrylonitrile, de polyimide, de polyétheréthercétone, de polyméthylméthacrylate, de polytetraethyleneglycoldiacrylate, de fluorure de polyvinylidène, de copolymère d'hexafluoropropylène, de fluorure de polyvinylidène, de copolymère de chlorotrifluoroethylene, et de leurs mélanges, et g) est disponible en tant que solution ou dispersion dans un solvant organique présentant un point d'ébullition compris entre 50°C et 250°C, et C) le rapport massique oxyde d'aluminium/liant est compris entre 50/50 et 95/5.
PCT/EP2016/061185 2015-06-02 2016-05-19 Composition de revêtement contenant de l'oxyde d'aluminium et procédé de revêtement de séparateurs avec cette composition Ceased WO2016193000A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015210153.3 2015-06-02
DE102015210153 2015-06-02

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Cited By (6)

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WO2020072607A1 (fr) * 2018-10-03 2020-04-09 Sasol (Usa) Corporation Alumines et leurs procédés de production
CN111117473A (zh) * 2019-12-25 2020-05-08 河北金力新能源科技股份有限公司 基于线性芳香族高分子化合物的涂覆浆料及其制备方法和应用、电池壳体
CN111933871A (zh) * 2020-10-16 2020-11-13 河南银金达新材料股份有限公司 一种多孔膜及其应用
CN114085403A (zh) * 2022-01-14 2022-02-25 寿光市联盟石油化工有限公司 一种离子化磺化聚醚醚酮隔膜及其制备方法与应用
RU2815078C2 (ru) * 2018-10-03 2024-03-11 СЭСОЛ (ЮЭсЭй) КОРПОРЕЙШН Оксиды алюминия и способы их получения
WO2024175389A1 (fr) * 2023-02-21 2024-08-29 Evonik Operations Gmbh Dispersions d'oxyde d'aluminium destinées à être utilisées en tant que revêtement de séparateur dans des batteries secondaires

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DE102007021199A1 (de) 2006-07-17 2008-01-31 Evonik Degussa Gmbh Zusammensetzungen aus organischem Polymer als Matrix und anorganischen Partikeln als Füllstoff, Verfahren zu deren Herstellung sowie deren Verwendung
WO2009079889A1 (fr) 2007-12-21 2009-07-02 Changzhou Zhongke Laifang Power Science & Technology Co., Ltd. Membrane polymère microporeuse renforcée en tissu non tissé, procédé de fabrication et utilisation de celle-ci
US7575832B2 (en) * 2002-08-27 2009-08-18 Degussa Ag Ion conducting battery separator for lithium batteries, method for the production and use thereof
WO2013107911A1 (fr) 2012-01-19 2013-07-25 Sihl Gmbh Séparateur présentant une couche poreuse et procédé pour le produire
EP2680343A1 (fr) * 2011-02-25 2014-01-01 Zeon Corporation Membrane poreuse pour batterie secondaire, boue pour membrane poreuse de batterie secondaire et batterie secondaire

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US7575832B2 (en) * 2002-08-27 2009-08-18 Degussa Ag Ion conducting battery separator for lithium batteries, method for the production and use thereof
DE102007021199A1 (de) 2006-07-17 2008-01-31 Evonik Degussa Gmbh Zusammensetzungen aus organischem Polymer als Matrix und anorganischen Partikeln als Füllstoff, Verfahren zu deren Herstellung sowie deren Verwendung
US20080242782A1 (en) * 2006-07-17 2008-10-02 Degussa Gmbh Compositions comprising an organic polymer as the matrix and inorganic particles as the filler, process for the preparation thereof and applications of the same
WO2009079889A1 (fr) 2007-12-21 2009-07-02 Changzhou Zhongke Laifang Power Science & Technology Co., Ltd. Membrane polymère microporeuse renforcée en tissu non tissé, procédé de fabrication et utilisation de celle-ci
EP2680343A1 (fr) * 2011-02-25 2014-01-01 Zeon Corporation Membrane poreuse pour batterie secondaire, boue pour membrane poreuse de batterie secondaire et batterie secondaire
WO2013107911A1 (fr) 2012-01-19 2013-07-25 Sihl Gmbh Séparateur présentant une couche poreuse et procédé pour le produire

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020072607A1 (fr) * 2018-10-03 2020-04-09 Sasol (Usa) Corporation Alumines et leurs procédés de production
CN112912538A (zh) * 2018-10-03 2021-06-04 萨索尔（美国）公司 氧化铝及其生产方法
KR20210072032A (ko) * 2018-10-03 2021-06-16 사솔 (유에스에이) 코포레이션 알루미나 및 이를 제조하는 방법
JP2022504289A (ja) * 2018-10-03 2022-01-13 サソール（ユーエスエイ）コーポレーシヨン アルミナおよびその製造法
RU2815078C2 (ru) * 2018-10-03 2024-03-11 СЭСОЛ (ЮЭсЭй) КОРПОРЕЙШН Оксиды алюминия и способы их получения
JP7554186B2 (ja) 2018-10-03 2024-09-19 サソール（ユーエスエイ）コーポレーシヨン アルミナおよびその製造法
KR102733054B1 (ko) 2018-10-03 2024-11-20 사솔 (유에스에이) 코포레이션 알루미나 및 이를 제조하는 방법
US12202983B2 (en) 2018-10-03 2025-01-21 Sasol (Usa) Corporation Aluminas and methods for producing same
CN111117473A (zh) * 2019-12-25 2020-05-08 河北金力新能源科技股份有限公司 基于线性芳香族高分子化合物的涂覆浆料及其制备方法和应用、电池壳体
CN111933871A (zh) * 2020-10-16 2020-11-13 河南银金达新材料股份有限公司 一种多孔膜及其应用
CN114085403A (zh) * 2022-01-14 2022-02-25 寿光市联盟石油化工有限公司 一种离子化磺化聚醚醚酮隔膜及其制备方法与应用
WO2024175389A1 (fr) * 2023-02-21 2024-08-29 Evonik Operations Gmbh Dispersions d'oxyde d'aluminium destinées à être utilisées en tant que revêtement de séparateur dans des batteries secondaires

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