PLASMA TREATMENT OF AN ELECTROCHEMICAL MEMBRANE

A method for treating an electrochemical membrane includes providing a porous film having a first outer surface and a second opposed outer surface, and treating at least a portion of the first outer surface with an air plasma jet at atmospheric pressure to functionalize the at least a portion of the...

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Bibliographic Details
Main Authors LARRY PAUL HAACK, KEVIN JAMES RHODES
Format Patent
LanguageEnglish
Published 25.11.2015
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Summary:A method for treating an electrochemical membrane includes providing a porous film having a first outer surface and a second opposed outer surface, and treating at least a portion of the first outer surface with an air plasma jet at atmospheric pressure to functionalize the at least a portion of the first outer surface with a plurality of oxygen functional groups. A battery separator has an ionically conductive separator film having a first functionalized outer surface with a plurality of oxygen atoms providing one to twenty percent of the total atoms present on the surface to provide a greater electrolytic uptake than a non-functionalized film. An electrochemical membrane has an ionically conductive microporous film with at least a portion of the first side having a plurality of polar functional groups introduced by air plasma treatment at atmospheric pressure.
Bibliography:Application Number: CN201510224920