Patent · US Active

Separator plate with periodic surface structures in the nanometer to micrometer range

US12057608B2 · kind B2 · utility

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12Claims

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Assignee

REINZ-DICHTUNGS-GMBH · DE

Inventors

Bernd Gaugler · Ulm, DE
Dieter Grafl · Ulm, DE
Stephan WENZEL · Weiler an der Zaber, DE

Key dates

Filing date	Mar 8, 2021
Grant date	Aug 6, 2024
Priority date	—
Expiry date	Sep 5, 2042

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The present disclosure relates to a separator plate for an electrochemical system, wherein the separator plate has, at least in some regions, periodic surface structures with a mean spatial period of less than 10 μm. The disclosure additionally relates to a method for producing a separator plate for an electrochemical system, comprising the steps: providing a separator plate; irradiating the separator plate by means of a pulsed laser, wherein a pulse duration of the laser pulses is less than 1 ns; and creating periodic surface structures on the separator plate by way of the laser radiation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.