公开(公告)号：US20240274848A1

公开(公告)日：2024-08-15

申请号：US18566288

申请日：2022-06-03

Applicant: 3M Innovative Properties Company ,  Colorado School Of Mines ,  GM Global Technology Operations LLC

Inventor： Michael A. Yandrasits ,  Matthew J. Lindell ,  Arne Thaler ,  Andrew M. Herring ,  ChulOong Kim ,  Mei-Chen Kuo ,  Craig S. Gittleman

IPC: H01M8/1039 ,  C08F214/26 ,  C08J5/22 ,  H01M8/10 ,  H01M8/1023

CPC classification number: H01M8/1039 ,  C08F214/262 ,  C08J5/225 ,  H01M8/1023 ,  C08J2327/18 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: Fluorinated ionomers (i.e., ion conducting polymers) that include a fluorinated polymer backbone with covalently bound pendent groups that include heteropolyacid (HP A) groups, or salts thereof, and perfluorosulfonic acid (PF SA) groups, or salts thereof, as well as polymer electrolyte membranes, fuel cells, and methods.

公开(公告)号：US20210384523A1

公开(公告)日：2021-12-09

申请号：US17288021

申请日：2019-10-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew T. Haug ,  John E. Abulu ,  Matthew J. Lindell ,  Tyler S. Matthews ,  Andrew J.L. Steinbach ,  Fuxia Sun ,  Michael A. Yandrasits

IPC: H01M4/92 ,  H01M4/86 ,  H01M4/88 ,  C09D127/18 ,  C09D141/00

Abstract: Described herein is a coating composition comprising: (a) a metal catalyst, wherein the metal catalyst comprises at least one of platinum, ruthenium, iridium, and alloys and combinations thereof; (b) an at least highly fluorinated ionomer comprising a polymer backbone and a plurality of first side chains pendant therefrom, wherein the first side chain comprises at least one protogenic group, wherein the protogenic group is selected from a sulfonic acid, a bis(sulfonyl)imide, a sulfonamide, a sulfonyl methide, and salts and combinations thereof, and wherein the polymer backbone comprises an average of at least 14 carbon atoms between adjacent first side chains along the polymer backbone; and (c) a solvent. Such coating compositions may be used to make electrodes for electrochemical cells and have been shown to have reduced poisoning of the catalyst.

公开(公告)号：US12034193B2

公开(公告)日：2024-07-09

申请号：US17782193

申请日：2020-12-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lisa P. Chen ,  Gregg D. Dahlke ,  Denis Duchesne ,  Klaus Hintzer ,  Matthew J. Lindell ,  Sean M. Smith ,  Arne Thaler ,  Michael A. Yandrasits

IPC: H01M8/1039 ,  H01M4/88 ,  H01M4/90 ,  H01M8/1004

CPC classification number: H01M8/1039 ,  H01M4/881 ,  H01M4/9008 ,  H01M8/1004 ,  H01M2300/0082

Abstract: The copolymer includes divalent units represented by formula —[CF2—CF2]—, at least one divalent unit represented by formula (I): and at least one divalent unit independently represented by formula (II): A is —N(RFa)2 or a is non-aromatic, 5- to 8-membered, perfluorinated ring comprising one or two nitrogen atoms in the ring and optionally comprising at least one oxygen atom in the ring, each RFa is independently linear or branched perfluoroalkyl having 1 to 8 carbon atoms and optionally interrupted by at least one catenated O or N atom, each Y is independently —H or —F, with the proviso that one Y may be —CF3, h is 0, 1, or 2, each i is independently 2 to 8, and j is 0, 1, or 2. A catalyst ink and polymer electrolyte membrane including the copolymer are also provided.

公开(公告)号：US20240204227A1

公开(公告)日：2024-06-20

申请号：US17909833

申请日：2021-03-05

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Matthew J. Lindell ,  Michael A. Yandrasits ,  Andrew T. Haug

IPC: H01M8/1039 ,  C08F8/34 ,  C08F8/44 ,  C08F214/26 ,  C08G65/00 ,  C08G65/334 ,  H01M8/10 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032

CPC classification number: H01M8/1039 ,  C08F8/34 ,  C08F8/44 ,  C08F214/262 ,  C08G65/007 ,  C08G65/3348 ,  H01M8/1027 ,  H01M8/103 ,  H01M8/1032 ,  C08G2650/48 ,  H01M2008/1095

Abstract: A fluoropolymer is described comprising pendent groups having the formula: —(CF2)a—(OCbF2b)c—(OCeF2e)—SO2—[NX2—SO2(CF2)f—SO2]d—NX1—SO2—Rf wherein Rf is a perfluoroether and X1 and X2 are independently cationic counterions. Also described are various articles including catalyst ink, polymer electrolyte membranes, and membrane electrode assemblies comprising the fluoropolymer described herein; as well as a method of making a fluoropolymer.

公开(公告)号：US20230056130A1

公开(公告)日：2023-02-23

申请号：US17782193

申请日：2020-12-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Lisa P. Chen ,  Gregg D. Dahlke ,  Denis Duchesne ,  Klaus Hintzer ,  Matthew J. Lindell ,  Sean M. Smith ,  Arne Thaler ,  Michael A. Yandrasits

IPC: H01M8/1039 ,  H01M8/1004 ,  H01M4/90 ,  H01M4/88

Abstract: The copolymer includes divalent units represented by formula —[CF2—CF2]—, at least one divalent unit represented by formula (I): and at least one divalent unit independently represented by formula (II): A is —N(RFa)2 or a is non-aromatic, 5- to 8-membered, perfluorinated ring comprising one or two nitrogen atoms in the ring and optionally comprising at least one oxygen atom in the ring, each RFa is independently linear or branched perfluoroalkyl having 1 to 8 carbon atoms and optionally interrupted by at least one catenated O or N atom, each Y is independently —H or —F, with the proviso that one Y may be —CF3, h is 0, 1, or 2, each i is independently 2 to 8, and j is 0, 1, or 2. A catalyst ink and polymer electrolyte membrane including the copolymer are also provided.

公开(公告)号：US12199290B2

公开(公告)日：2025-01-14

申请号：US17288021

申请日：2019-10-25

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Andrew T. Haug ,  John E. Abulu ,  Matthew J. Lindell ,  Tyler S. Matthews ,  Andrew J. L. Steinbach ,  Fuxia Sun ,  Michael A. Yandrasits

IPC: H01M4/92 ,  C09D127/18 ,  C09D141/00 ,  H01M4/86 ,  H01M4/88

Abstract: Described herein is a coating composition comprising: (a) a metal catalyst, wherein the metal catalyst comprises at least one of platinum, ruthenium, iridium, and alloys and combinations thereof; (b) an at least highly fluorinated ionomer comprising a polymer backbone and a plurality of first side chains pendant therefrom, wherein the first side chain comprises at least one protogenic group, wherein the protogenic group is selected from a sulfonic acid, a bis(sulfonyl)imide, a sulfonamide, a sulfonyl methide, and salts and combinations thereof, and wherein the polymer backbone comprises an average of at least 14 carbon atoms between adjacent first side chains along the polymer backbone; and (c) a solvent. Such coating compositions may be used to make electrodes for electrochemical cells and have been shown to have reduced poisoning of the catalyst.

公开(公告)号：US20240347751A1

公开(公告)日：2024-10-17

申请号：US18580310

申请日：2022-07-11

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Matthew J. Lindell ,  Gregory M. Haugen ,  Michael A. Yandrasits

IPC: H01M8/1039 ,  C08F8/30 ,  H01M8/10 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/18

CPC classification number: H01M8/1039 ,  C08F8/30 ,  H01M8/103 ,  H01M8/1032 ,  H01M8/188 ,  H01M2008/1095 ,  H01M2300/0082

Abstract: Described herein is a method of making a polymer electrolyte membrane, the method comprising: disposing a liquid composition on a substrate, wherein the liquid composition comprises an ionic fluorinated polymer, wherein the ionic fluorinated polymer comprises a plurality of side chains having a protogenic group in a salt form, and wherein the ionic fluorinated polymer has a T(a) of less than 200° C. Such polymer electrolyte membranes may be used in electrochemical cells, such as a flow cell battery.

公开(公告)号：US20230006230A1

公开(公告)日：2023-01-05

申请号：US17739227

申请日：2022-05-09

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Michael A. Yandrasits ,  Miguel A. Guerra ,  Carl A. Laskowski ,  Matthew J. Lindell

IPC: H01M8/1032 ,  C08F216/14 ,  C08F214/26 ,  H01M8/1004 ,  H01M8/1039 ,  C07C309/82

Abstract: Presently described is a monomer having the formula: wherein n ranges from 2 to 8; Y is F or CmF2m+1; a is 0, or averages 1 to 2; m is independently 1, 2, 3, or 4; and X is F or OH. Also described is a method of making such monomer, various compounds prepared during while making the monomer, fluoropolymers comprising polymerized units of such monomer, fuel cell membranes, membrane electrode assemblies, and methods of making fluoropolymers.