公开(公告)号：EP4101945B1

公开(公告)日：2024-05-15

申请号：EP21178453.3

申请日：2021-06-09

IPC: C25B1/04 ,  B01D53/047 ,  C01B3/50 ,  C25B1/55 ,  C25B9/17 ,  C25B9/40 ,  C25B11/037 ,  C25B11/052 ,  C25B11/067 ,  C25B11/075 ,  C25B11/081 ,  C25B11/087 ,  H01M8/0656 ,  H01M8/1018 ,  C21B3/00 ,  C25B11/049 ,  C25B9/50 ,  C01B3/56 ,  G21B3/00

CPC classification number: G21B3/002 ,  B01D53/047 ,  C25B1/04 ,  C25B9/17 ,  C25B9/40 ,  C25B11/037 ,  C25B11/052 ,  C25B11/075 ,  C25B11/087 ,  C25B11/067 ,  C25B11/081 ,  H01M8/0656 ,  H01M8/1018 ,  B01D2256/1620130101 ,  B01D2257/10420130101 ,  C01B3/56 ,  Y02E60/36 ,  C25B9/50 ,  C25B11/049

公开(公告)号：EP4352279A1

公开(公告)日：2024-04-17

申请号：EP22733009.9

申请日：2022-06-08

Applicant: Epinovatech AB

Inventor： OLSSON, Martin Andreas

IPC: C25B1/04 ,  B01D53/047 ,  C01B3/50 ,  C25B1/55 ,  C25B9/17 ,  C25B9/40 ,  C25B11/037 ,  C25B11/052 ,  C25B11/067 ,  C25B11/075 ,  C25B11/081 ,  C25B11/087 ,  H01M8/0656 ,  H01M8/1018 ,  C21B3/00 ,  G21B3/00

CPC classification number: G21B3/002 ,  B01D53/047 ,  C25B1/04 ,  C25B9/17 ,  C25B9/40 ,  C25B11/037 ,  C25B11/052 ,  C25B11/075 ,  C25B11/087 ,  C25B11/067 ,  C25B11/081 ,  H01M8/0656 ,  H01M8/1018 ,  B01D2256/1620130101 ,  B01D2257/10420130101 ,  C01B3/56 ,  Y02E60/36 ,  C25B9/50 ,  C25B11/049

公开(公告)号：EP3395990A1

公开(公告)日：2018-10-31

申请号：EP16879342.0

申请日：2016-12-21

Applicant: POSCO

Inventor： KIM, Jong Hee ,  KIM, Kwang Min ,  LEE, Jae Hwa ,  CHUNG, Yang Jin ,  JO, Ki Hoon ,  SEO, Bo Sung

IPC: C22C38/28 ,  C22C38/26 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D8/02 ,  H01M8/021 ,  H01M8/1018 ,  C21D6/00 ,  C21D7/04 ,  C21D9/46 ,  C25F1/06 ,  C22C38/22 ,  C22C38/24 ,  B21B1/22 ,  C23F1/00 ,  C23F17/00 ,  C23G1/08 ,  C23C22/50 ,  C21D7/02 ,  C21D1/28

CPC classification number: C21D8/02 ,  C21D1/28 ,  C21D6/002 ,  C21D7/02 ,  C21D7/04 ,  C21D8/0242 ,  C21D8/0278 ,  C21D9/46 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C23C22/50 ,  C23G1/081 ,  C23G1/086 ,  C25F1/06 ,  H01M8/021 ,  H01M8/1018

Abstract: Stainless steel with improved hydrophilicity and contact resistance for a Polymer Electrolyte Membrane Fuel Cell (PEMFC) separator, and a method of manufacturing the stainless steel Stainless steel are disclosed. Stainless steel for a Polymer Electrolyte Membrane Fuel Cell (PEMFC) separator according to an embodiment of the present disclosure may include: by weight percent, 0 to 0.02% of C (excluding 0), 0 to 0.02% of N(excluding 0), 0 to 0.25% of Si (excluding 0), 0 to 0.2% of Mn (excluding 0), 0 to 0.04% of P (excluding 0), 0 to 0.02% of S (excluding 0), 20 to 34% of Cr, 0 to 0.6% of V (excluding 0), 0 to 0.5% of Ti (excluding 0), 0 to 0.5% of Nb (excluding 0), and the remainder comprising iron (Fe) and other unavoidable impurities, wherein a plurality of patterns may be formed on a surface of the stainless steel in a direction that is inclined with respect to a rolling direction, and the plurality of patterns are arranged repeatedly in the rolling direction.

公开(公告)号：EP2659967B1

公开(公告)日：2018-10-31

申请号：EP10861327.4

申请日：2010-12-29

Applicant: Ocean's King Lighting Science&Technology Co., Ltd.

Inventor： ZHOU, Mingjie ,  ZHONG, Linglong ,  WANG, Yaobing

IPC: H01M4/92 ,  H01M8/1018

CPC classification number: H01M4/8657 ,  H01M2/16 ,  H01M4/88 ,  H01M4/921 ,  H01M4/926 ,  H01M8/1018 ,  H01M2008/1095

Abstract: A Pt-Ru nano-alloy/graphene catalyst comprises graphene as a support, and a Pt-Ru nano-alloy loaded on the graphene. The use of graphene as support for the catalyst takes advantage of the ion effect and tow-dimensional ductility of graphene, which increase the stability of the catalyst. The catalyst is prepared by a reverse micelles system method which provides a micro-environment (i.e. water-in-oil microemulsion), so that the particle size of the resulting nano-alloy particles can be regulated easily and is more uniformly distributed. The use of the catalyst in electrochemistry is also disclosed.

公开(公告)号：EP3392372A1

公开(公告)日：2018-10-24

申请号：EP16876084.1

申请日：2016-12-16

Applicant: POSCO

Inventor： KIM, Jong Hee ,  KIM, Kwang Min ,  JO,KI Hoon ,  SEO, Bo Sung

IPC: C23C22/05 ,  C23C22/73 ,  C23C22/48 ,  C23C22/50 ,  C23C22/78 ,  C22C38/28 ,  C22C38/26 ,  C22C38/24 ,  H01M8/021 ,  H01M8/1018

CPC classification number: C22C38/24 ,  C22C38/26 ,  C22C38/28 ,  C23C22/34 ,  C23C22/73 ,  C25F1/06 ,  C25F3/06 ,  H01M8/021 ,  H01M8/1018 ,  Y02P70/56

Abstract: Provided are stainless steel for a separator of a polymer electrolyte membrane fuel cell, which exhibits enhanced hydrophilicity and enhanced corrosion resistance, and a method of manufacturing the same. In the stainless steel for a separator of a polymer electrolyte membrane fuel cell, which exhibits enhanced hydrophilicity and enhanced corrosion resistance, according to an embodiment of the present invention, a ratio of Cr hydroxide/Cr oxide included in a passivation film of the stainless steel ranges from 0.5 to 1.7, and the passivation film has a contact angle (θ) of 70° or less. Thus, not only corrosion resistance may be enhanced by removing a non-conductive film formed on a surface of the stainless steel and forming a new conductive film thereon, but hydrophilicity may also be secured without additional surface treatment such as a separate coating or the like, and thus manufacturing costs may be reduced and productivity may be increased.

公开(公告)号：EP3127947B1

公开(公告)日：2018-10-10

申请号：EP15773873.3

申请日：2015-03-24

Applicant: Toray Industries, Inc.

Inventor： ADACHI, Shinya ,  IZUHARA, Daisuke

IPC: C08J7/12 ,  H01M4/88 ,  H01M8/02 ,  H01M8/10 ,  C08J5/22 ,  H01M8/1004 ,  H01M8/1018 ,  H01M4/92

CPC classification number: C08J7/126 ,  C08J5/2262 ,  C08J2300/22 ,  C08J2367/02 ,  C25B9/10 ,  H01M4/8814 ,  H01M4/8817 ,  H01M4/8821 ,  H01M4/92 ,  H01M8/1004 ,  H01M8/1018 ,  H01M8/188 ,  H01M12/06 ,  H01M2008/1095 ,  Y02P20/582

Abstract: The present invention provides a substrate film that has a catalyst coating liquid having good coating properties when producing a membrane electrode assembly, has a catalyst layer and support film having good release properties after the catalyst layer is transferred to an electrolyte membrane using a catalyst transfer sheet, and does not contaminate the catalyst layer. Provided is a substrate film for a catalyst transfer sheet, said substrate film being formed by introducing fluorine atoms to at least one surface of a base film formed from one or more types of polymers selected from the group consisting of polyethylene, polypropylene, polyethylene terephthalate, polybutylene terephthalate, polyethylene napthalate, polyphenylene sulfide, polysulfones, polyether ketone, polyether ether ketone, polyimides, polyetherimide, polyamides, polyamide-imides, polybenzimidazoles, polycarbonates, polyarylates, and polyvinyl chloride, wherein the ratio, measured by X-ray photoelectron spectroscopy, of the number of fluorine atoms/the number of carbon atoms in the surface to which the fluorine atoms are introduced, i.e. the modified surface, is 0.02-1.9, inclusive.

公开(公告)号：EP3101719B1

公开(公告)日：2018-09-19

申请号：EP16167103.7

申请日：2016-04-26

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： FUJII, Tsutomu ,  YOSHIMURA, Mitsuo

IPC: H01M8/00 ,  H01M8/008 ,  H01M8/0273 ,  H01M8/1018

CPC classification number: H01M8/0273 ,  H01M8/006 ,  H01M8/008 ,  H01M8/026 ,  H01M8/0276 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/1018 ,  H01M8/242 ,  H01M8/2457 ,  H01M2008/1095 ,  H01M2300/0002 ,  H01M2300/0082 ,  Y02W30/86

Abstract: An assembly, including: an electrolyte membrane; and a frame that holds the electrolyte membrane, wherein the frame includes a first frame that holds one surface of the electrolyte membrane, and a second frame that holds the other surface of the electrolyte membrane, the frame further has a joint part that joins the first frame and the second frame, and the joint part has a projection.

公开(公告)号：EP2930259B1

公开(公告)日：2018-08-29

申请号：EP13860202.4

申请日：2013-11-27

Applicant: Toray Industries, Inc.

Inventor： KAJIWARA, Kentaro ,  SHIMOYAMA, Satoru ,  HORIGUCHI, Tomoyuki

IPC: D04H1/4242 ,  D01F9/14 ,  H01M4/88 ,  H01M4/96 ,  H01M8/10

CPC classification number: H01M4/8626 ,  B32B5/022 ,  B32B5/06 ,  B32B5/26 ,  B32B2262/106 ,  B32B2307/72 ,  B32B2457/18 ,  D01F9/14 ,  D04H1/4242 ,  D10B2101/08 ,  H01M4/8807 ,  H01M4/8817 ,  H01M4/8875 ,  H01M4/96 ,  H01M8/1018 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y10T156/1054

Abstract: Provided is a carbon-fiber nonwoven cloth with low resistance to gases or liquids passing through, and low resistance in the thickness direction to heat or electricity, which is particularly appropriate for a gas diffusion electrode of a polymer electrolyte fuel cell; the cloth having an air gap with a diameter of at least 20 µm, at least some of the carbon fibers being continuous from one surface to the other surface, and the apparent density being 0.2-1.0 g/cm 3 , or, having an air gap with a diameter of at least 20 µm and at least some of the carbon fibers being mutually interlaced, and further, at least some of the carbon fibers being oriented toward the thickness direction and the apparent density being 0.2-1.0 g/cm 3 .

公开(公告)号：EP3355395A1

公开(公告)日：2018-08-01

申请号：EP16848973.0

申请日：2016-09-23

Applicant: Kolon Industries, Inc.

Inventor： CHO, Dong Jun

IPC: H01M4/86 ,  H01M4/88 ,  H01M8/04298 ,  H01M8/1004 ,  H01M8/1018

CPC classification number: H01M4/881 ,  H01M4/8605 ,  H01M4/8663 ,  H01M4/8668 ,  H01M4/8803 ,  H01M4/8828 ,  H01M4/92 ,  H01M8/04298 ,  H01M8/1004 ,  H01M8/1007 ,  H01M8/1018 ,  H01M2008/1095 ,  Y02P70/56

Abstract: Disclosed are a membrane-electrode assembly for fuel cells, a method of manufacturing the same and a fuel cell system comprising the same. The membrane-electrode assembly for fuel cells includes an anode and a cathode facing each other, and a polymer electrolyte membrane interposed between the anode and the cathode, wherein at least one of the anode and the cathode further includes a porous support and a catalyst layer for fuel cells disposed on one surface of the porous support.
The electrode of the membrane-electrode assembly for fuel cells is a free-standing electrode, and the electrode has excellent adhesivity to the polymer electrolyte membrane and thus can prevent performance deterioration resulting from detachment of the electrode from the polymer electrolyte membrane during operation of fuel cells, and in particular, can secure high durability since the electrode is not readily detached even under harsh operation environments. Using the electrode, the membrane-electrode assembly for fuel cells can be manufactured by a simple process without using any decal film to reduce manufacturing costs.

公开(公告)号：EP3345936A1

公开(公告)日：2018-07-11

申请号：EP16841856.4

申请日：2016-08-30

Applicant: Asahi Glass Company, Limited

Inventor： WATABE, Hiroyuki ,  WAKABAYASHI, Hirokazu

IPC: C08F8/00 ,  C08F16/24 ,  C08J3/03 ,  H01M4/86 ,  H01M4/88 ,  H01M8/02 ,  H01M8/10

CPC classification number: H01M4/8663 ,  C08F8/00 ,  C08F16/24 ,  C08F214/262 ,  C08J3/03 ,  C08J3/05 ,  C08J5/225 ,  C08J2327/24 ,  H01M4/86 ,  H01M4/88 ,  H01M4/8828 ,  H01M4/8882 ,  H01M4/926 ,  H01M8/02 ,  H01M8/10 ,  H01M8/1004 ,  H01M8/1018 ,  H01M2008/1095 ,  Y02P70/56

Abstract: To provide a process for producing a liquid composition capable of forming a polymer electrolyte membrane of which breakage at the time of drying is suppressed; a process for producing a catalyst layer-forming coating liquid capable of forming a catalyst layer of which breakage at the time of drying is suppressed; and a method for producing a membrane/electrode assembly by which a catalyst layer or a polymer electrolyte membrane of which breakage at the time of drying is suppressed, can be formed.
A process for producing a liquid composition, which comprises holding a fluorinated polymer having -SO 2 F groups at from 110 to 130°C for at least 45 minutes; cooling the fluorinated polymer having -SO 2 F groups held at from 110 to 130°C to less than 110°C; converting the -SO 2 F groups in the fluorinated polymer having -SO 2 F groups cooled to less than 110°C to ion exchange groups thereby to obtain a fluorinated polymer having ion exchange groups; and mixing the fluorinated polymer having ion exchange groups and a liquid medium.