公开(公告)号：US20240059922A1

公开(公告)日：2024-02-22

申请号：US18336471

申请日：2023-06-16

Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

Inventor： Clémence MARTY ,  Jean-François BLACHOT ,  Frédéric FOUDA-ONANA ,  Marie HEITZMANN ,  Joël PAUCHET ,  Pierre TOUDRET

IPC: C09D11/52 ,  C09D11/033 ,  C09D11/037 ,  C09D11/106 ,  H01M8/1004

CPC classification number: C09D11/52 ,  C09D11/033 ,  C09D11/037 ,  C09D11/106 ,  H01M8/1004 ,  H01M2008/1095

Abstract: A method may form an electroconductive and hydrophobic microporous layer (MPL) at an active layer surface configured for an electrochemical converter, including: (a) providing a non-aqueous dispersion, called “ink”, including a carbon-based particulate material and an organic solvent; (b) forming an ink deposit at the active layer surface; and (c) evaporating the solvent(s) to form a microporous layer, simultaneously and/or subsequently to the forming (b). The ink may include poly(vinylidene fluoride-co-hexafluoropropene), dissolved in the organic solvent. Ink may prepare such a microporous layer, and a multilayer structure including an active layer supported by a solid electrolyte membrane and contacting, at its face on the opposite side the solid membrane, with a microporous layer obtained by the such a method. A membrane-electrode assembly may include such a multilayer structure. Such an MEA may be used in an individual cell of an electrochemical converter, in particular in a PEMFC.