Battery separators

Surprisingly it has been found that battery separators based on unwoven fabric can be obtained simply and without complications and having uniform thickness and especially adequate porosity. The separators are not hairy, have outstanding mechanical strength, good chemical resistance, especially agai...

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Bibliographic Details
Main Author PLOETZ, KURT
Format Patent
LanguageEnglish
French
German
Published 22.11.2006
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:Surprisingly it has been found that battery separators based on unwoven fabric can be obtained simply and without complications and having uniform thickness and especially adequate porosity. The separators are not hairy, have outstanding mechanical strength, good chemical resistance, especially against sulfuric acid and salt solutions, and have outstanding delamination resistance. An Independent claim is included for preparation of the separators based on an endless filament nonwoven fabric (NWF) by spinning of polymers, the NWF being pre-strengthened by stitching, and calibrated with a calender, with terminal strengthening by an acid resistant binder.
Bibliography:Application Number: EP20020017445