Patent application number | Description | Published |
20080245735 | Ceramic Flexible Membrane Providing Improved Adhesion to the Support Fleece - The present invention relates to flexible ceramic membranes which, depending on embodiment, are useful as separators for batteries, especially lithium batteries, and also a process for their production. | 10-09-2008 |
20080248381 | Ceramic Separator for Electrochemcial Cells With Improved Conductivity - Separator for an electrochemical cell comprising a flexible perforate carrier having a ceramic coating on and in the carrier, the ceramic coating comprising from 75 to 99 parts by mass of oxidic particles selected from particles of ZrO | 10-09-2008 |
20080274394 | Stacks Of Separators And Electrodes Alternately Stacked One On Top Of The Other And Fixed For Li Storage Batteries - The present invention relates to stacks comprising separators and electrodes stacked alternately one on top of the other and fixed, the stack having, on at least one side and/or edge of the stack, at least one adhesive bond comprising an organic adhesive, which bond adhesively bonds the electrodes and separators of the stack to one another, and a method for the production thereof and the use of these stacks in Li batteries. | 11-06-2008 |
20090263571 | SEPARATOR WITH LONG-TERM STABILITY FOR AN ELECTROCHEMICAL CELL - A separator for an electrochemical cell, comprising (A) a flexible perforate support, (B) a porous first ceramic material which fills the perforations in the support and which (i) has a pore structure which is characterized by an average pore size, and (ii) is suitable for receiving an ion-conducting electrolyte, wherein (C) the electrolyte-contactable pore surface of the first porous ceramic material is covered with fine particles of a further material to extend the use life, the average size of the fine particles being in the range from 0.5 to 30% and preferably in the range from 1 to 15% of the average pore size of the ceramic material. | 10-22-2009 |
20090269489 | SEPARATOR PROVIDED WITH ASYMMETRICAL PORE STRUCTURES FOR AN ELECTROCHEMICAL CELL - A separator for an electrochemical cell, comprising (A) a flexible perforate support, and (B) a porous ceramic material which fills the perforations in the support and is suitable for receiving an ion-conducting electrolyte, wherein the porous ceramic material comprises a first porous layer which is characterized by an average pore size and also at least one second porous layer for contacting with an electrode, the second porous layer having an average pore size which is smaller than the average pore size of the first porous layer. | 10-29-2009 |
20090311418 | LITHIUM BATTERY SEPARATOR HAVING A SHUTDOWN FUNCTION - Electrical separators for batteries, especially lithium batteries, having a shutdown mechanism. A process for their production. An electrical separator is used in batteries and other systems in which electrodes have to be separated from each other while maintaining ion conductivity. Safety is very important in lithium batteries, since in contrast to other types of battery (Pb, NiCd, NiMeH) the solvent for the electrolyte is not water but a combustible solvent. A separator for lithium cells must possess a shutdown mechanism while not being able to melt down. This is achieved by an electrical separator having a shutdown layer which comprises particles which melt at a desired temperature, close the pores of the separator, and so stop ion flow. Since the separator also comprises a porous inorganic (ceramic) layer on a carrier, the cells cannot melt down as a result of a completely melted separator. | 12-17-2009 |
20100000079 | INORGANIC SEPARATOR-ELECTRODE-UNIT FOR LITHIUM-ION BATTERIES, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF IN LITHIUM BATTERIES - The present invention concerns separator-electrode assemblies for lithium batteries and also a process for their production. | 01-07-2010 |
20100003401 | INORGANIC SEPARATOR-ELECTRODE-UNIT FOR LITHIUM-ION BATTERIES, METHOD FOR THE PRODUCTION THEREOF AND USE THEREOF IN LITHIUM BATTERIES - The present invention concerns separator-electrode assemblies for lithium batteries and also a process for their production. | 01-07-2010 |
20100024614 | METHOD FOR CUTTING OR PUNCHING CERAMIC-CONTAINING COMPOSITE MATERIALS - A method for cutting and/or punching material in which abrasive particles are present within and/or on the surface of a substrate is provided. The material cut or punched is useful as a ceramic separator for electrochemical applications including capacitors, supercapacitors, batteries, lithium ion batteries and lithium metal batteries. | 02-04-2010 |
20100028778 | METHOD FOR THE CUTTING OF MECHANICALLY SENSITIVE SHEET STOCK - Sheet stock that is useful as a separator in batteries can be obtained by a method in which (a) the sheet stock is provided, (b) the sheet stock is cut to the required width, and, subsequently, (c) the sheet stock obtained according to step (b) is wound onto a core or tube, and, subsequently, (d) the sheet stock is cut to length on the core or tube along the axis of the core or of the tube. The sheet stock has a carrier and abrasive particles, the abrasive particles being located inside and/or on at least part of the surface of the carrier. | 02-04-2010 |
20100183917 | FILM FORMER-FREE ELECTROLYTE/SEPARATOR SYSTEM AND USE THEREOF IN ELECTROCHEMICAL ENERGY ACCUMULATORS - The invention relates to an electrolyte separator system comprising an ionic liquid, a conductive salt and a ceramic separator, and the use of the electrolyte separator system according to the invention in electrochemical energy storage systems, in particular of lithium metal and lithium ion batteries. | 07-22-2010 |
20100279173 | SEPARATOR WITH IMPROVED EASE OF HANDLING - Robust separator, which has on a substrate and in the intermediate spaces of the substrate, which comprises fibres of an electrically nonconducting material, an electrically nonconductive coating of oxide particles which are adhesively bonded to one another and to the substrate by an inorganic adhesive and comprise at least one oxide, selected from Al | 11-04-2010 |
20100291292 | ELECTRIC SEPARATOR, METHOD FOR MAKING SAME AND USE THEREOF IN HIGH-POWER LITHIUM CELLS - The present invention relates to electrical separators and to a process for producing them. | 11-18-2010 |
20100291293 | SEPARATOR-ELECTRODE UNIT FOR LITHIUM-ION BATTERIES, METHOD FOR THE PRODUCTION AND USE THEREOF IN LITHIUM BATTERIES - The present invention relates to separator-electrode units for lithium batteries and also to a process for their production. | 11-18-2010 |
20100323233 | ELECTRIC SEPARATOR, METHOD FOR THE PRODUCTION AND USE THEREOF - The present invention relates to electrical separators and to a process for making them. An electrical separator is a separator used in batteries and other arrangements in which electrodes have to be separated from each other while maintaining ion conductivity for example. The separator is preferably a thin porous insulating material possessing high ion permeability, good mechanical strength and long-term stability to the chemicals and solvents used in the system, for example in the electrolyte of the battery. In batteries, the separator should fully electrically insulate the cathode from the anode. Moreover, the separator has to be permanently elastic and to follow movements in the system, for example in the electrode pack in the course of charging and discharging. This object is achieved by an electrical separator according to the invention, comprising a sheetlike flexible substrate having a multiplicity of openings and having a coating on and in said substrate, said substrate being a polymeric nonwoven and said coating being a porous electrically insulting ceramic coating, said separator being characterized by a thickness of less than 80 μm. | 12-23-2010 |
20110136400 | TEXTILE SUBSTRATES HAVING SELF-CLEANING PROPERTIES - The present invention relates to a vapor-pervious water-impervious substrate, preferably a fibrous nonwoven web, which can be used in particular as a textile continuous sheet material, for example as an awning or as an inlet in apparel. The substrate according to the present invention may have self-cleaning properties. The substrate according to the present invention is simple to produce in an at least two-step process wherein a coating on the fibers of the substrate is produced in the first step and then hydrophobic particles are applied to the coated fibers by means of an adhesion promoter. | 06-09-2011 |
20110206971 | CERAMIC, FLEXIBLE MEMBRANE PROVIDING IMPROVED ADHESION TO THE SUPPORT FLEECE - The present invention relates to flexible ceramic membranes which, depending on embodiment, are useful as separators for batteries, especially lithium batteries, and also a process for their production. | 08-25-2011 |
20120251890 | CERAMIC MEMBRANE HAVING SUPPORT MATERIALS COMPRISING POLYARAMIDE FIBERS AND METHOD FOR PRODUCING SAID MEMBRANES - The present invention relates to a membrane comprising a flat, flexible substrate having a plurality of openings and having a porous inorganic coating situated on and in said substrate, the material of the substrate being selected from woven or non-woven, electrically non-conductive fibers, characterized in that the substrate comprises polyaramide fibers that are pure or connected to fibers of the further polymer or at least of one of these further polymers, wherein the fibers of at least one of said further polymers comprise a melting point that is lower than the decomposition point of the polyaramide fibers. | 10-04-2012 |
20120308871 | PRODUCTION AND USE OF CERAMIC COMPOSITE MATERIALS BASED ON A POLYMERIC CARRIER FILM - The invention relates to a ceramic composite material ( | 12-06-2012 |
20140044878 | CERAMIC COMPOSITE WALL COVERING - Disclosed is a wallcovering assembly consisting of a base material and at least one ceramic coating/topcoat with or without an optional ceramic interlayer. | 02-13-2014 |
20140127546 | SEPARATOR WITH ADDITIVE FOR IMPROVING THE COATING QUALITY AND REDUCING AGGLOMERATES IN A CERAMIC COMPOSITE - The invention relates to a separator which has a porous coating which is not electrically conductive and is composed of oxide particles which are adhesively bonded to one another and to the substrate by means of an inorganic adhesive and comprise at least one oxide selected from among Al | 05-08-2014 |
20140212727 | Separator with improved ease of handling - Robust separator which has, on a substrate and in the voids of the substrate, which comprises fibers of an electrically nonconductive material, an electrically nonconductive coating comprising oxide particles which are adhesively bonded to one another and to the substrate by an inorganic adhesive and comprise at least one oxide selected from Al | 07-31-2014 |
20150017512 | SEPARATOR COMPRISING AN ORGANIC-INORGANIC ADHESION PROMOTER - The invention relates to a process for producing a separator comprising the steps of: providing a sheetlike porous substrate, a solvent, ceramic particles and an adhesion promoter; preparing a slip by mixing the solvent, the adhesion promoter and the ceramic particles; coating the substrate with the slip and thermally drying the coated substrate to obtain the separator. The problem addressed is that of specifying a process useful for producing separators having a higher ceramic content. The problem is solved when the solvent used is a mixture of water and at least one organic component; the adhesion promoter used is a mixture of silanes and at least one thermally crosslinkable acrylic polymer; the slip is admixed with a carboxylic acid preparation and also with a defoamer component free from silicone oil. | 01-15-2015 |