Method for preparing composite flexible graphite material
AssigneeAdvanced Energy Technology Inc.
InventorsRobert Angelo Mercuri, Jeremy Klug, Matthew George Getz, Thomas William Weber
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Abstract
An improved method enables preparation of articles for a variety of applications, including embossing or otherwise shaping to form a variety of articles. A plurality of thin, preferably resin-impregnated, flexible graphite sheets are arranged to form zones in a composite material having a graded density or other characteristic. Variation of properties between zones in the stock material formed is useful for achieving a desired set of properties in the formation of articles such as those useful in electrochemical fuel cells and double-layer capacitors.
Claims26
A material useful as a substrate for an embossed flexible graphite sheet, the material comprising a composite flexible graphite sheet comprising a plurality of zones of flexible graphite sheet, where:
- at least one of said plurality of zones has a characteristic different from at least one other of said plurality of zones.
A process for preparing a composite material useful as a substrate for forming an embossed flexible graphite sheet, comprising a plurality of zones of flexible graphite sheet, wherein at least one of said plurality of zones has a density higher than at least one other of said plurality of regions, comprising:
- placing a first portion of resin-impregnated flexible graphite sheet in contact with at least one other portion of resin-impregnated flexible graphite sheet having a characteristic different from said first portion to form a composite;
- and
- subjecting the composite to consolidating pressure.
Dependencies are inferred from the claim text.