公开(公告)号：US20240234773A1

公开(公告)日：2024-07-11

申请号：US18613629

申请日：2024-03-22

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Byoung Su Kim ,  Yong Min Kim ,  Ha Yeong Yu ,  Jin Yi Choi ,  Ju Ahn Park ,  Ju Young Lee ,  Jung lk Kim ,  Min Kyung Kim

IPC: H01M8/1053 ,  H01M4/88 ,  H01M4/92 ,  H01M8/10 ,  H01M8/1004 ,  H01M8/1069

CPC classification number: H01M8/1053 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/92 ,  H01M8/1004 ,  H01M8/1069 ,  H01M2008/1095

Abstract: Disclosed are an electrolyte membrane of a membrane-electrode assembly including an electronic insulation layer, which greatly improves the durability of the electrolyte membrane, and a method of preparing the same. The electrolyte membrane includes an ion exchange layer and an electronic insulation layer provided on the ion exchange layer, and the electronic insulation layer includes one or more catalyst complexes, and a second ionomer. Particularly, each of the one or more catalyst complex includes a catalyst particle and a first ionomer coated on the entirety or a portion of the surface of the catalyst particle, and the one or more catalyst complexes are dispersed the second ionomer.

公开(公告)号：US12021246B2

公开(公告)日：2024-06-25

申请号：US17985218

申请日：2022-11-11

Applicant: Northwestern University ,  University of Maryland, College Park

Inventor： Sossina M. Haile ,  Sihyuk Choi ,  Christopher James Kucharczyk ,  Yangang Liang ,  Xiaohang Zhang ,  Ichiro Takeuchi

IPC: H01M4/90 ,  C01G25/00 ,  C01G25/02 ,  H01M4/86 ,  H01M4/88 ,  H01M8/1213 ,  H01M8/1246 ,  H01M8/1253 ,  H01M8/126 ,  H01M8/12

CPC classification number: H01M4/9033 ,  C01G25/006 ,  C01G25/02 ,  H01M4/861 ,  H01M4/8657 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/8867 ,  H01M4/9066 ,  H01M8/1213 ,  H01M8/1246 ,  H01M8/1253 ,  H01M8/126 ,  H01M2008/1293 ,  H01M2300/0074

Abstract: Materials for electrochemical cells are provided. BaZr0.4Ce0.4M0.2O3 compounds, where M represents one or more rare earth elements, are provided for use as electrolytes. PrBa0.5Sr0.5Co2−xFexO5+δ is provided for use as a cathode. Also provided are electrochemical cells, such as protonic ceramic fuel cells, incorporating the compounds as electrolytes and cathodes.

公开(公告)号：US11996566B2

公开(公告)日：2024-05-28

申请号：US17185601

申请日：2021-02-25

Applicant: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION

Inventor： Prashant N. Kumta ,  Prasad P. Patel ,  Moni K. Datta ,  Oleg Velikokhatnyi ,  Prashanth J. Hanumantha ,  Ramalinga Kuruba ,  Shrinath Ghadge

IPC: H01M4/90 ,  B01J27/135 ,  B82Y30/00 ,  H01M4/88 ,  H01M8/08 ,  H01M8/1018 ,  H01M8/1233

CPC classification number: H01M4/9016 ,  H01M4/881 ,  H01M4/8825 ,  H01M8/08 ,  H01M8/1018 ,  H01M8/1233 ,  B01J27/135 ,  B82Y30/00 ,  Y02E60/50

Abstract: The invention provides noble metal-free electro-catalyst compositions for use in acidic media, e.g., acidic electrolyte. The noble metal-free electro-catalyst compositions include non-noble metal absent of noble metal. The non-noble metal is non-noble metal oxide, and typically in the form of any configuration of a solid or hollow nano-material, e.g., nano-particles, a nanocrystalline thin film, nanorods, nanoshells, nanoflakes, nanotubes, nanoplates, nanospheres and nanowhiskers or combinations of myriad nanoscale architecture embodiments. Optionally, the noble metal-free electro-catalyst compositions include dopant, such as, but not limited to halogen. Acidic media includes oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells, and direct methanol fuel cells and oxygen evolution reaction (OER) in PEM-based water electrolysis and metal air batteries, and hydrogen generation from solar energy and electricity-driven water splitting.

公开(公告)号：US11967746B2

公开(公告)日：2024-04-23

申请号：US16694222

申请日：2019-11-25

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Byoung Su Kim ,  Yong Min Kim ,  Ha Yeong Yu ,  Jin Yi Choi ,  Ju Ahn Park ,  Ju Young Lee ,  Jung Ik Kim ,  Min Kyung Kim

IPC: H01M8/1053 ,  H01M4/88 ,  H01M4/92 ,  H01M8/10 ,  H01M8/1004 ,  H01M8/1069

CPC classification number: H01M8/1053 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/92 ,  H01M8/1004 ,  H01M8/1069 ,  H01M2008/1095

Abstract: Disclosed are an electrolyte membrane of a membrane-electrode assembly including an electronic insulation layer, which greatly improves the durability of the electrolyte membrane, and a method of preparing the same. The electrolyte membrane includes an ion exchange layer and an electronic insulation layer provided on the ion exchange layer, and the electronic insulation layer includes one or more catalyst complexes, and a second ionomer Particularly, each of the one or more catalyst complex includes a catalyst particle and a first ionomer coated on the entirety or a portion of the surface of the catalyst particle, and the one or more catalyst complexes are dispersed the second ionomer.

公开(公告)号：US11936051B2

公开(公告)日：2024-03-19

申请号：US16713890

申请日：2019-12-13

Applicant: The Board of Trustees of the Leland Stanford Junior University ,  Volkswagen Aktiengesellschaft

Inventor： Friedrich B. Prinz ,  Shicheng Xu ,  Yongmin Kim ,  Thomas Jaramillo ,  Drew C. Higgins ,  Maha Yusuf ,  Zhaoxuan Wang ,  Kyung Min Lee ,  Marat Orazov ,  Dong Un Lee ,  Tanja Graf ,  Thomas Schladt ,  Gerold Huebner ,  Hanna-Lena Wittern ,  Jonathan Edward Mueller

IPC: H01M4/92 ,  C23C16/455 ,  H01M4/86 ,  H01M4/88 ,  H01M8/1004 ,  H01M8/10

CPC classification number: H01M4/925 ,  C23C16/45525 ,  H01M4/8668 ,  H01M4/8807 ,  H01M4/881 ,  H01M4/8867 ,  H01M4/8892 ,  H01M8/1004 ,  H01M2008/1095 ,  H01M2250/20 ,  H01M2300/0082

Abstract: A catalyst structure includes: (1) a substrate; (2) a catalyst layer on the substrate; and (3) an adhesion layer disposed between the substrate and the catalyst layer. In some implementations, an average thickness of the adhesion layer is about 1 nm or less. In some implementations, a material of the catalyst layer at least partially extends into a region of the adhesion layer. In some implementations, the catalyst layer is characterized by a lattice strain imparted by the adhesion layer.

公开(公告)号：US11843148B2

公开(公告)日：2023-12-12

申请号：US17591826

申请日：2022-02-03

Applicant: TOPPAN INC.

Inventor： Hiroyuki Morioka

IPC: H01M8/1004 ,  H01M4/88 ,  H01M4/90 ,  H01M8/10

CPC classification number: H01M8/1004 ,  H01M4/881 ,  H01M4/9016 ,  H01M2008/1095

Abstract: A fuel cell membrane electrode assembly includes a polymer electrolyte membrane and a pair of electrocatalyst layers arranged to have the polymer electrolyte membrane therebetween, at least one of the pair of electrocatalyst layers includes particles supporting a catalyst which is composed of a noble metal component, a polymer electrolyte, and a fibrous oxide-based catalytic material, and the fibrous oxide-based catalytic material includes at least one transition metal element selected from a group consisting of Ta, Nb, Ti, and Zr.

公开(公告)号：US11721824B2

公开(公告)日：2023-08-08

申请号：US17496912

申请日：2021-10-08

Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Hidenari Yamamoto

IPC: H01M8/1004 ,  H01M8/04119 ,  H01M4/88

CPC classification number: H01M8/1004 ,  H01M4/881 ,  H01M4/8807 ,  H01M8/04149 ,  H01M2300/0065

Abstract: To provide a high-voltage fuel cell. The fuel cell is a fuel cell comprising an anode-side gas diffusion layer, an anode catalyst layer, an electrolyte membrane, a cathode catalyst layer and a cathode-side gas diffusion layer in this order, wherein a gas diffusion resistance ratio of the anode-side gas diffusion layer to the cathode-side gas diffusion layer is more than 1.50 and less than 2.79; wherein a gas diffusion resistance value of the cathode-side gas diffusion layer is 84 S/m or less at a relative humidity of 165%; and wherein a gas diffusion resistance value of the anode-side gas diffusion layer is less than 234 S/m at a relative humidity of 165%.

公开(公告)号：US20230238543A1

公开(公告)日：2023-07-27

申请号：US18001852

申请日：2021-09-13

Applicant: AUDI AG

Inventor： Pascal PISZCZEK

IPC: H01M4/88 ,  H01M4/86 ,  H01M4/90 ,  H01M8/1004 ,  H01M8/1018

CPC classification number: H01M4/881 ,  H01M4/8642 ,  H01M4/8828 ,  H01M4/8647 ,  H01M4/886 ,  H01M4/9058 ,  H01M4/9083 ,  H01M8/1004 ,  H01M8/1018

Abstract: A method for producing a catalyst-coated membrane includes: producing and/or providing at least one first ink with a first ink composition, comprising supported catalyst particles, a proton-conductive ionomer, and a dispersing agent, the content of the supported catalyst particles in the composition remaining below the content of the proton-conductive ionomer; unwinding a web-shaped proton-conductive membrane material which is provided on a roll; applying at least one layer of the first ink onto at least one section of the membrane material using a first application tool; and sputtering a catalyst powder consisting of or comprising catalyst particles onto a surface of the outermost ink layer facing away from the membrane material using a sputtering device.

公开(公告)号：US11705568B2

公开(公告)日：2023-07-18

申请号：US17596614

申请日：2020-08-21

Applicant: Johnson Matthey Hydrogen Technologies Limited

Inventor： Dash Fongalland ,  Jonathan Sharman

IPC: H01M8/10 ,  H01M8/1004 ,  H01M4/88 ,  H01M4/90

CPC classification number: H01M8/1004 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/9083

Abstract: The present invention provides a catalysed ion-conducting membrane comprising an ion-conducting membrane, an electrocatalyst layer having two opposing faces, and a layer A comprising an ion-conducting material and a carbon containing material. Also provided are methods for preparing the catalysed ion-conducting membrane.

公开(公告)号：US20190245215A1

公开(公告)日：2019-08-08

申请号：US16343356

申请日：2017-10-18

Applicant: UNIVERSITY OF CAPE TOWN

Inventor： Duarte Rui SOUSA ,  Nabeel HUSSAIN

IPC: H01M4/88 ,  H01M8/1004 ,  B05D1/02 ,  B05D7/04

CPC classification number: H01M4/8828 ,  B05D1/02 ,  B05D7/04 ,  B05D2201/02 ,  B05D2252/02 ,  H01M4/881 ,  H01M4/886 ,  H01M8/1004 ,  H01M8/1018 ,  H01M2008/1095

Abstract: A method of coating a membrane having a first side and an opposite second side and carried with its second side adhering to a backer film is provided. The method includes coating the first side of the membrane with a catalyst ink or slurry with the second side adhering to the backer film and curing the coating on the first side. The backer film is then removed to expose the second side of the membrane which is fed onto a vacuum conveyor with the coated first side facing the conveyor. The second side of the membrane is then coated with a catalyst ink or slurry and the coating on the second side cured after which the membrane is removed from the vacuum conveyor.