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BIPOLAR PLATE PRODUCTION METHOD, BIPOLAR PLATE AND ELECTROMECHANICAL CELL

Application US20260084349A1 Kind: A1 Mar 26, 2026

Assignee

SCHAEFFLER Technologies AG & CO. KG

Inventors

Roland Karpinski, Heiko Ballmes, Philipp Mayer, Torsten Keller

Abstract

The disclosure relates to a bipolar plate production method for producing a bipolar plate, in particular for an electrochemical cell, which method comprises the following steps: providing two foil sections made of a polymer graphite material comprising at least one polymer and at least 75 wt. % of an electrically conductive filler comprising predominantly graphite and also carbon black,inserting the two foil sections into an embossing and molding tool, closing the tool, wherein the foil sections are embossed and tightly connected to one another at their edges,forming a hollow structure between the foil sections by means of gas pressure differences at the foil surfaces, wherein the foil sections rest against surface structures of tool surfaces, which face one another, of the embossing and molding tool,removing the bipolar plate, formed from the foil sections, from the embossing and molding tool after the foil sections have solidified.

CPC Classifications

B29C 43/021 H01M 8/0213 H01M 8/0221 H01M 8/0226 H01M 8/0247 H01M 8/0267 B29L 2031/3468

Filing Date

2023-07-19

Application No.

19109840