摘要:
Mixtures of gases, liquids or solutions are separated by contacting the mixtures with a substance-permeable material and applying a voltage to the substance-permeable material, thereby increasing the efficiency of separation techniques such as microfiltration or ultrafiltration.
摘要:
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 Al2O3, ZrO2 and SiO2, polymer particles also being present in the ceramic coating in addition to the oxide particles of Al2O3, ZrO2 and/or SiO2. These separators have particularly good handling properties since they are mechanically very stable.
摘要翻译:坚固的分离器在衬底上和衬底的空隙中,其包含非导电材料的纤维,包含氧化物颗粒的非导电涂层,其通过无机粘合剂粘合地粘合到衬底上并且包括在 除了Al 2 O 3,ZrO 2和/或SiO 2的氧化物颗粒之外,还选自Al 2 O 3,ZrO 2和SiO 2中的至少一种氧化物,聚合物颗粒也存在于陶瓷涂层中。 这些分离器具有特别好的处理性能,因为它们在机械上非常稳定。
摘要:
Disclosed is a wallcovering assembly consisting of a base material and at least one ceramic coating/topcoat with or without an optional ceramic interlayer.
摘要:
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.Ceramic or hybridic membranes have the disadvantage that, whatever the level of flexibility already achieved, they tend to crumble off the ceramic coating on bending. This is prevented by the present membranes, which comprise, on and in a polymeric nonwoven, a solidified ceramic coating which is constructed from two fractions of metal oxide particles of different size and which adheres to the polymeric nonwoven through a network constructed by two different adhesion promoters.
摘要:
The present invention relates to electrical separators and to a process for producing 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 processing high ion perviousness, 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 shall fully electrically insulate the cathode from the anode. Moveover, the separator shall be permanently elastic and 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 insulating ceramic coating, said separator being characterized by said nonwoven having a thickness of less than 30 μm, a porosity of more than 50% and a pore radius distribution in which at least 50% of the pores have a pore radius from 75 to 150 μm.
摘要:
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 insulating ceramic coating, said separator being characterized by said nonwoven having a thickness of less than 30 μm, a porosity of more than 50% and a pore radius distribution in which at least 50% of the pores have a pore radius from 75 to 150 μm.
摘要:
A pyrogenic oxidic powder composed of particles, comprising (i) atoms of an element of groups 3A, 4A, 3B or 4B of the periodic table of the elements, and (ii) oxygen atoms, said particles being characterized by lithium atoms attached to said atoms via an oxygen bridge.
摘要:
A user profile and/or the suggestions computed based thereon are obtained taking a special set of user features into account. The user features are defined to represent a typical general behaviour of an individual user in respect to the application where the user profile is used. In other words, for each application where a user profile is used a special set of user features are defined which are able to represent a typical general behaviour of an individual user. Based on these user features the weights in the list of word-weight pairs or weighted keywords which represents the user profile are computed or influenced during the creation of the user profile, and/or a multi-user profile is split during the creation of an individual user profile from a multi-user profile, and/or during specification of a suggestion a user history which is used to create the user profile, and/or the user profile, and/or the suggestion results are filtered.
摘要:
A separator based on a sheetlike flexible substrate having a multiplicity of openings and having a coating on and in the substrate, the material of the substrate being selected from woven or non-woven electrically nonconductive fibers of glass or ceramic or a combination thereof and the coating being a porous electrically insulating ceramic coating, characterized by a thickness of less than 100 μm; a process for producing the separator; and a battery comprising the separator.
摘要:
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.