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1. (WO2019030557) FREE-STANDING OER ANODE CATALYST LAYERS FOR FUEL CELLS
Latest bibliographic data on file with the International BureauSubmit observation

Pub. No.: WO/2019/030557 International Application No.: PCT/IB2018/000705
Publication Date: 14.02.2019 International Filing Date: 15.06.2018
IPC:
H01M 4/86 (2006.01) ,H01M 4/88 (2006.01) ,H01M 4/90 (2006.01) ,H01M 8/1018 (2016.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
86
Inert electrodes with catalytic activity, e.g. for fuel cells
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
86
Inert electrodes with catalytic activity, e.g. for fuel cells
88
Processes of manufacture
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
M
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
4
Electrodes
86
Inert electrodes with catalytic activity, e.g. for fuel cells
90
Selection of catalytic material
[IPC code unknown for H01M 8/1018]
Applicants:
DAIMLER AG [DE/DE]; Mercedesstrasse 137 70327 Stuttgart, DE
FORD MOTOR COMPANY [US/US]; One American Road Dearborn, MI 48126, US
Inventors:
ZOU, Yuquan; CA
ZHANG, Hao; CA
MCDERMID, Scott; CA
KUNDU, Sumit; CA
MANOLESCU, Dorina; CA
YANG, Yunsong; CA
Agent:
STÜCKRAD, Björn; Daimler AG Intellectual Property, Trends & Innovation RD/RI - H512 70546 Stuttgart, DE
Priority Data:
62/544,71011.08.2017US
Title (EN) FREE-STANDING OER ANODE CATALYST LAYERS FOR FUEL CELLS
(FR) COUCHES DE CATALYSEURS D'ANODE DE RÉACTION D’ÉVOLUTION D’OXYGÈNE AUTONOMES POUR PILES À COMBUSTIBLE
Abstract:
(EN) Free-standing oxygen evolution reaction (OER) anode catalyst layers for a solid polymer electrolyte fuel cell and methods for making them are disclosed. The anode catalyst layers comprise a porous polymer sheet (e.g. expanded PTFE) and a mixture comprising an OER catalyst and a hydrocarbon ionomer which is impregnated in the pores of the porous polymer sheet. Use of such a separate OER anode catalyst layer in a catalyst coated membrane assembly of a fuel cell provides better voltage reversal tolerance than admixtures and use of the hydrocarbon ionomer can slow down dissolution of the OER catalyst. Further, the preparation methods are suitable for mass production.
(FR) L'invention concerne des couches de catalyseur d'anode de réaction d'évolution d'oxygène (OER) autonomes pour une pile à combustible à électrolyte polymère solide et des procédés de fabrication de celles-ci. Les couches de catalyseur d'anode comprennent une feuille de polymère poreux (par exemple du PTFE expansé) et un mélange comprenant un catalyseur OER et un ionomère hydrocarboné qui est imprégné dans les pores de la feuille de polymère poreux. L'utilisation d'une telle couche de catalyseur d'anode OER séparée dans un ensemble membrane revêtu de catalyseur d'une pile à combustible offre une meilleure tolérance d'inversion de tension que les mélanges et l'utilisation de l'ionomère hydrocarboné peut ralentir la dissolution du catalyseur OER. En outre, les procédés de préparation sont appropriés pour une production de masse.
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)