公开(公告)号：US12113255B2

公开(公告)日：2024-10-08

申请号：US17495041

申请日：2021-10-06

Applicant: Hyundai Motor Company ,  Kia Corporation

Inventor： Il Seok Chae

IPC: H01M8/1044 ,  C08F212/14 ,  C08F220/36 ,  C08F220/38 ,  C25B1/04 ,  C25B9/19 ,  C25B13/08 ,  H01M8/1004 ,  H01M8/103 ,  H01M8/1034 ,  H01M8/1051

CPC classification number: H01M8/1004 ,  C08F212/26 ,  C08F212/30 ,  C08F220/36 ,  C08F220/382 ,  C25B1/04 ,  C25B9/19 ,  C25B13/08 ,  H01M8/103 ,  H01M8/1034 ,  H01M8/1051

Abstract: Disclosed is an electrolyte membrane for a membrane-electrode assembly including a block copolymer composed of a hydrophilic domain and a hydrophobic domain.

公开(公告)号：US20240006640A1

公开(公告)日：2024-01-04

申请号：US18037925

申请日：2021-12-01

Applicant: The Lubrizol Corporation

Inventor： Thomas S. Corrigan ,  Christopher M. Rasik ,  William Storms-Miller ,  Bryan Tucker

IPC: H01M8/1023 ,  H01M8/1025 ,  H01M8/103 ,  H01M8/1039

CPC classification number: H01M8/1023 ,  H01M8/1025 ,  H01M8/103 ,  H01M8/1039 ,  H01M2300/0082

Abstract: The disclosed technology relates to antioxidant substituted sulfonic acid polymers and ion exchange membranes prepared therefrom. The bonding of the polymer with an antioxidant can minimize the antioxidant from interfering with ion conductivity and prevent the antioxidant from leaching onto other layers or onto catalysts.

公开(公告)号：US20230317999A1

公开(公告)日：2023-10-05

申请号：US18312785

申请日：2023-05-05

Applicant: BLUE WORLD TECHNOLOGIES HOLDING APS

Inventor： Mads BANG ,  Denys GROMADSKYI ,  Jakob BORK ,  Larysa HROMADSKA

IPC: H01M8/1088 ,  C08G73/18 ,  C08J5/18 ,  C08J7/14 ,  H01M8/103

CPC classification number: H01M8/1088 ,  C08G73/18 ,  C08J5/18 ,  C08J7/14 ,  H01M8/103 ,  C08J2379/04

Abstract: A continuous automated process and production line for preparing an acid doped polybenzimidazole, PBI, polymer membrane film for use in a fuel cell, the process comprising a washing stage, a drying procedure, and a doping stage.

公开(公告)号：US20180237632A1

公开(公告)日：2018-08-23

申请号：US15901024

申请日：2018-02-21

Applicant: Northwestern University

Inventor： Kenneth R. Shull ,  Kazi Sadman ,  Qifeng Wang

IPC: C08L57/06 ,  H01M8/1032 ,  H01M8/103 ,  H01M4/90 ,  C08L41/00

CPC classification number: C08L57/06 ,  C08L41/00 ,  C08L2203/16 ,  C08L2203/20 ,  C09D133/02 ,  C09D139/00 ,  H01M4/9016 ,  H01M8/103 ,  H01M8/1032 ,  Y02E60/521

Abstract: Methods for forming a polyelectrolyte complex (PEC) film are provided. In embodiments, the method comprises applying a potential between a working electrode and a counter electrode, the electrodes in contact with an aqueous polyelectrolyte solution characterized by a bulk pH. The aqueous polyelectrolyte solution comprises a pH sensitive PEC pair comprising an unmodified anionic polymer and a cationic species, an electrochemical pH agent other than water, and a salt. The applied potential induces an electrochemical reaction of the electrochemical pH agent to generate OH− or H+ at the working electrode without inducing water electrolysis in the aqueous polyelectrolyte solution, thereby forming a PEC film from the unmodified anionic polymer and the cationic species on a surface of the working electrode.

公开(公告)号：US09951170B2

公开(公告)日：2018-04-24

申请号：US15033829

申请日：2015-03-20

Applicant: Hulin Xu

Inventor： Hulin Xu ,  Changjin Zhu

IPC: C08F283/00 ,  C08J5/22 ,  C08F212/14 ,  C08F8/12 ,  C08F8/36 ,  H01M2/16 ,  H01M8/02 ,  H01M8/103 ,  H01M8/1034 ,  C08G79/025 ,  B01J39/19 ,  H01M8/1018

CPC classification number: C08F283/00 ,  B01J39/19 ,  C08F8/12 ,  C08F8/36 ,  C08F212/14 ,  C08F2438/01 ,  C08F2500/26 ,  C08F2810/20 ,  C08G79/025 ,  C08J5/22 ,  C08J5/2268 ,  C08J5/2287 ,  C08J2325/08 ,  C08J2351/08 ,  C08J2385/02 ,  H01M2/16 ,  H01M8/02 ,  H01M8/103 ,  H01M8/1034 ,  H01M2008/1095 ,  C08F212/08

Abstract: A sulfonated polyphosphazene copolymer proton exchange membrane material, and a method for preparing such membrane includes a macromolecule initiator as bromo polyphosphazene is subjected to atom transfer radical polymerization with styrene, yielding a graft copolymer, which is hydrazinolyzed with hydrazine hydrate resulting in a copolymer including a hydroxyl group. The copolymer is reacted with 1,4-butane sultone to yield a sulfonated copolymer finally. The polymer is cross-linked with 2,6-di(hydroxymethyl)-4-methyl phenol (BHMP) as a cross linking agent in the presence of methyl sulfonic acid, yielding cross-linked proton exchange membrane. Such cross-linked graft copolymer membrane has high proton conductivity, low methanol hindrance, and low cost, and has ideal effect when applied in fuel cells as proton exchange membrane material.

公开(公告)号：US09893374B2

公开(公告)日：2018-02-13

申请号：US14678688

申请日：2015-04-03

Applicant: LG CHEM, LTD.

Inventor： Eun Ju Kim ,  Chong Kyu Shin ,  Bong Keun Lee ,  Seong Ho Choi

IPC: H01M8/1053 ,  H01M8/1058 ,  H01M8/1007 ,  H01M8/1067 ,  H01M8/1039 ,  H01M8/103 ,  H01M8/1062 ,  H01M8/1034 ,  H01M8/1025 ,  H01M8/04082 ,  H01M8/1027 ,  H01M8/1032 ,  H01M8/1023 ,  H01M8/106 ,  H01M8/1081

CPC classification number: H01M8/1053 ,  H01M8/04197 ,  H01M8/1007 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1034 ,  H01M8/1039 ,  H01M8/1058 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1067 ,  H01M8/1081 ,  H01M2300/0082 ,  H01M2300/0088 ,  H01M2300/0094 ,  Y02E60/521 ,  Y02P70/56

Abstract: Disclosed is a composite electrolyte membrane comprising a microporous polymer substrate and a sulfonated polymer electrolyte. The composite electrolyte membrane comprises: a first polymer electrolyte layer formed of a first non-fluorinated or partially-fluorinated sulfonated polymer electrolyte; a non-fluorinated or partially-fluorinated microporous polymer substrate stacked on the first polymer electrolyte layer, wherein pores of the microporous polymer substrate are impregnated with a second non-fluorinated or partially-fluorinated sulfonated polymer electrolyte, and the first polymer electrolyte and the second polymer electrolyte are entangled with each other on an interface thereof; and a third polymer electrolyte layer formed on the microporous polymer substrate impregnated with the second polymer electrolyte by a third non-fluorinated or partially-fluorinated sulfonated polymer electrolyte, wherein the second polymer electrolyte and the third polymer electrolyte are entangled with each other on an interface thereof. A method for manufacturing the composite electrolyte membrane, and a membrane-electrode assembly (MEA) and a fuel cell comprising the composite electrolyte membrane are also disclosed.

公开(公告)号：US09847533B2

公开(公告)日：2017-12-19

申请号：US12633835

申请日：2009-12-09

Applicant: Thomas Berta ,  William Shamrock

Inventor： Thomas Berta ,  William Shamrock

IPC: H01M8/10 ,  H01M4/96 ,  H01M4/92 ,  H01M4/88 ,  C08J5/22 ,  H01M8/1004 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1081 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1039

CPC classification number: H01M4/88 ,  H01M4/8807 ,  H01M4/881 ,  H01M4/8828 ,  H01M4/92 ,  H01M4/926 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1025 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1039 ,  H01M8/106 ,  H01M8/1062 ,  H01M8/1081 ,  Y02E60/521 ,  Y02P70/56

Abstract: A solid polymer electrolyte membrane having a first surface and a second surface opposite the first surface, where the solid polymer electrolyte membrane has a failure force greater than about 115 grams and comprises a composite membrane consisting essentially of (a) at least one expanded PTFE membrane having a porous microstructure of polymeric fibrils, and (b) at least one ion exchange material impregnated throughout the porous microstructure of the expanded PTFE membrane so as to render an interior volume of the expanded PTFE membrane substantially occlusive; (c) at least one substantially occlusive, electronically insulating first composite layer interposed between the expanded PTFE membrane and the first surface, the first composite layer comprising a plurality of first carbon particles supporting a catalyst comprising platinum and an ion exchange material, wherein a plurality of the first carbon particles has a particle size less than about 75 nm, or less than about 50 nm, or less than about 25 nm.

公开(公告)号：US09799907B2

公开(公告)日：2017-10-24

申请号：US14708898

申请日：2015-05-11

Applicant: Nikolai M. Kocherginsky

Inventor： Nikolai M. Kocherginsky

IPC: H01M8/10 ,  H01M8/20 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/1018

CPC classification number: H01M8/103 ,  H01M8/1032 ,  H01M8/20 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/528

Abstract: A redox membrane based flow fuel cell includes a reducing agent solution compartment with an inlet and outlet to supply reducing agent solution and an oxidation agent solution compartment with an inlet and outlet to supply oxidation agent solution. A barrier separating the compartments consists of a water-insoluble synthetic metal polymer membrane lacking any separate electrode on surfaces of the membrane and being exposed directly to the solutions. A current collection electrode is in each of the compartments and is disposed to convert ion- to electron-based currents. The current collection electrodes can be reference electrodes.

公开(公告)号：US20170298179A1

公开(公告)日：2017-10-19

申请号：US15516756

申请日：2015-10-28

Applicant: LG CHEM, LTD.

Inventor： Sehee JUNG ,  Joong Jin HAN ,  Hyun Woog RYU ,  Yong Jin JANG ,  Youngjea KIM ,  Esder KANG

IPC: C08G65/40 ,  H01M8/1027 ,  H01M8/1032 ,  H01M8/18 ,  H01M8/103 ,  H01M8/1018

CPC classification number: C08G65/40 ,  C08G73/06 ,  C08J5/22 ,  C08L71/12 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/188 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/528

Abstract: The present specification relates to a polymerization composition, a polymer using the same, a polymer electrolyte membrane using the same, a fuel cell including the same, and a redox flow battery including the same.

公开(公告)号：US20170279144A1

公开(公告)日：2017-09-28

申请号：US15078072

申请日：2016-03-23

Applicant: NISSAN NORTH AMERICA, INC.

Inventor： Rameshwar Yadav

IPC: H01M8/1039 ,  C08G75/30

CPC classification number: H01M8/1039 ,  C08G75/30 ,  H01M8/103 ,  H01M8/1032 ,  H01M2008/1095 ,  Y02P70/56

Abstract: Multi-acid polymers are produced having the formula R—SO2—NH—(SO3−H+)n or R—SO2—NH—(PO3−H2+)n and made from a polymer precursor in sulfonyl fluoride form or sulfonyl chloride form The R is one or more units of the polymer precursor without sulfonyl fluoride or sulfonyl chloride, n is one or more, and the multi-acid polymer has two or more proton conducting groups. A method of making the multi-acid polymers includes reacting an amino acid having multiple sulfonic acids or phosphonic acids with a polymer precursor in sulfonyl fluoride form or sulfonyl chloride form in a mild base condition to produce the multi-acid polymer having two or more proton conducting groups.