公开(公告)号：US20180047998A1

公开(公告)日：2018-02-15

申请号：US15559746

申请日：2015-03-20

Applicant: APERAM

Inventor： Pauline GIRARDON ,  Sébastien TAHON ,  Jean-Michel DAMASSE ,  Marie-Hélène BERGER ,  Hughes CORNIL ,  Olivier HENROTTE ,  Alain PIMARD

IPC: H01M8/0228 ,  C30B23/02 ,  C23C14/06 ,  H01M8/0215 ,  C23C14/00 ,  C30B29/38 ,  H01M8/021

CPC classification number: H01M8/0228 ,  C23C14/0036 ,  C23C14/0068 ,  C23C14/022 ,  C23C14/044 ,  C23C14/0641 ,  C23C14/548 ,  C23C14/562 ,  C30B23/025 ,  C30B29/38 ,  H01M8/021 ,  H01M8/0215 ,  H01M2008/1095 ,  Y02P70/56

Abstract: The present invention relates to a metal strip or sheet comprising a substrate made from stainless steel covered with at least one layer of a chromium-nitride coating. The chromium-nitride coating layer is textured.

公开(公告)号：US20210050603A1

公开(公告)日：2021-02-18

申请号：US16965561

申请日：2018-01-29

Applicant: APERAM ,  SOGEPA Société wallonne de Gestion et de Participations

Inventor： Pauline GIRARDON ,  Sébastien TAHON ,  Jean-Michel DAMASSE ,  Hughes CORNIL ,  Olivier HENROTTE ,  Alain PIMARD

IPC: H01M8/0208 ,  H01M8/0228 ,  H01M8/0226

Abstract: Bipolar plate for assembling the elements of a fuel cell unit, consisting of a stainless-steel substrate (1) coated on at least one of the two faces thereof with a layer (5) of an electrically conductive material, characterised in that the material is selected from CrN and a bivalent or trivalent Ti compound or a mixture of such compounds, in that if the electrically conductive material is a bivalent or trivalent Ti compound or a mixture of such compounds, the layer (5) contains at most a quantity of oxygen in at. %, measured by X-ray photoelectron spectroscopy (XPS) on the upper 10 nm of the layer, which does not exceed 1.5 times the content in at. % of oxygen which, according to the measured content in at. % of Ti, would correspond to a coating which consists entirely of TiO, and in that at least one intermediate layer (4) of a metal or an alloy metal is positioned between the substrate (1) and the layer (5) of electrically conductive material, the thickness of the layer (4) of metal material being at least 1 nm over the entire surface of the substrate (1).
The invention also relates to a method for producing said bipolar plate, a fuel cell unit including same, and a fuel cell including said unit.

公开(公告)号：US20180112304A1

公开(公告)日：2018-04-26

申请号：US15559455

申请日：2015-03-20

Applicant: APERAM

Inventor： Pauline GIRARDON ,  Sébastien TAHON ,  Jean-Michel DAMASSE ,  Marie-Hélène BERGER ,  Hughes CORNIL ,  Olivier HENROTTE ,  Alain PIMARD

IPC: C23C14/00 ,  C23C14/06 ,  C23C14/56 ,  C23C14/54 ,  C23C14/02 ,  C23C14/04 ,  H01M8/0228 ,  H01M8/021

Abstract: The present invention relates to a method for manufacturing a metal strip or sheet, including the steps of providing a substrate made from stainless steel; and depositing a chromium-nitride layer on the substrate by physical vapor deposition (PVD) in a deposition installation comprising a deposition chamber and a chromium target arranged in the deposition chamber. The deposition chamber has a deposition area with a length strictly smaller than the length of the deposition chamber and at least a first prohibited area. During the deposition, the chromium nitride is deposited on the substrate only in the deposition area and no chromium nitride is deposited on the substrate in the prohibited area.