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US 7,351,494 B2Granted
Electric separator, method for producing the same and the use thereof
AssigneeDegussa AG
InventorsVolker Hennige, Christian Hying, Gerhard Hoerpel
Life of this patent
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Abstract
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.
Claims20
A separator comprising
- a flexible substrate in sheet form
- having a multiplicity of openings and
- having a coating on and in said substrate,
- the material of said substrate being woven electrically nonconductive fibers of glass and said coating being a porous electrically insulating ceramic coating, wherein the substrate is a woven glass fiber fabric comprising woven fibers or filaments which has been produced from 2 to 20 tex yarns and has from 5 to 30 weft threads/cm and from 5 to 30 warp threads/cm, and the separator has a thickness of less than 100 μm.
1 more element
Dependencies are inferred from the claim text.