公开(公告)号：US20230128992A1

公开(公告)日：2023-04-27

申请号：US18077346

申请日：2022-12-08

申请人： DAIKIN INDUSTRIES, LTD. ,  NATIONAL UNIVERSITY CORPORATION, IWATE UNIVERSITY

发明人： Yoshiyuki OISHI ,  Tsuyoshi Noguchi ,  Tadashi Kanbara

IPC分类号： C08G73/18 ,  H01M8/1072 ,  H05K1/03 ,  C08J5/18 ,  H01M8/1039 ,  H01M8/10

摘要： A polybenzimidazole production method for producing the polybenzimidazole including a repeating unit represented by the following formula (1): wherein Rf is —SO2—, —O—, —CO—, an alkylene group optionally containing a substituent, or a group represented by the following formula (a): two Xs are each individually a hydrogen atom or a monovalent organic group; and R1 is a divalent organic group, the production method including a step (1-1) of polymerizing a tetramine compound and a dicarboxylic acid derivative compound to provide a polybenzimidazole precursor polyamide, and a step (1-2) of dehydrocyclizing the polybenzimidazole precursor polyamide.

公开(公告)号：US11600837B2

公开(公告)日：2023-03-07

申请号：US16595871

申请日：2019-10-08

申请人： The University of Toledo

发明人： Matthew Liberatore ,  George Amobi Ozioko ,  Karl Schoeps

IPC分类号： H01M8/103 ,  H01M8/1027 ,  H01M8/1072 ,  B01J41/07 ,  B01J47/12 ,  C08F220/56 ,  C08J3/24 ,  C08J5/22 ,  C08F236/14 ,  H01M8/10

摘要： Crosslinked membranes for anion exchange applications, and methods of making and using the same, are described.

公开(公告)号：US20220251264A1

公开(公告)日：2022-08-11

申请号：US17725459

申请日：2022-04-20

申请人： AGC INC.

发明人： Takeshi HIRAI ,  Susumu SAITO ,  Hiroyuki WATABE

IPC分类号： C08F216/14 ,  C08K3/08 ,  C08K3/04 ,  C08K3/22 ,  H01M8/1004 ,  H01M8/1039 ,  H01M8/1072

摘要： The present invention provides a fluoropolymer containing fluorosulfonyl groups capable of forming a polymer electrolyte membrane with high conductivity and hot water resistance, a method for its production, a fluoropolymer containing acid-form sulfonic acid groups and a method for its production, a polymer electrolyte membrane, a membrane-electrode assembly and a polymer electrolyte fuel cell. The method for producing a fluoropolymer containing fluorosulfonyl groups of the present invention comprises copolymerizing a monomer m1 (CF2═CFCF2O-Q1-SO2F) and TFE in a reactor at a temperature of from 150 to 200° C. in the presence of a radical polymerization initiator, wherein the radical polymerization initiator is continuously or sequentially added into the reactor so that the concentration of the radical polymerization initiator is kept to at most 2.5 mass ppm of the initial feed of the monomer m1 present in the reactor before initiation of the copolymerization during the copolymerization, and the molar ratio of the total feed of the monomer m1 to the total feed of tetrafluoroethylene is from 1.5 to 20

公开(公告)号：US11158876B2

公开(公告)日：2021-10-26

申请号：US16572544

申请日：2019-09-16

申请人： FUTAMURA KAGAKU KABUSHIKI KAISHA

发明人： Takuzo Imaizumi ,  Naomi Goto ,  Naoki Shiba

IPC分类号： H01M8/1041 ,  H01M8/0206 ,  H01M8/026 ,  H01M8/0213 ,  H01M8/0221 ,  H01M8/0228 ,  H01M8/0258 ,  H01M8/1027 ,  H01M8/1053 ,  H01M8/1072 ,  H01B1/12 ,  H01M8/1018 ,  B01D71/58 ,  B01D71/82 ,  C08J5/22

摘要： A method of production of a channel member for fuel cell use comprising a step of obtaining a sheet-shaped first conductor part 11 containing a carbon material of at least one of carbon nanotubes, granular graphite, and carbon fibers and a first resin, a step of laying a sheet-shaped second conductor part 21 containing a carbon material and a second resin with a lower melting point than the first resin to form a sheet-shaped base part 13, a step of transferring a grooved surface 51 to a surface to form a grooved base part 16 provided with groove part 15, a step of laying a sheet-shaped third conductor part 31 containing a carbon material and a third resin with a lower melting point than the first resin, and a step of integrally joining the grooved base part and the third conductor part by hot melt bonding to cover the groove parts.

公开(公告)号：US20210202972A1

公开(公告)日：2021-07-01

申请号：US17269835

申请日：2020-03-19

申请人： DALIAN UNIVERSITY OF TECHNOLOGY

发明人： Xuemei WU ,  Gaohong HE ,  Xiaozhou WANG ,  Xiaoming YAN ,  Tiantian LI ,  Wanting CHEN ,  Xiangcun LI ,  Wu XIAO ,  Xiaobin JIANG ,  Fujun CUI ,  Yan DAI ,  Xuehua RUAN

IPC分类号： H01M8/1072 ,  C08G73/18 ,  H01M8/1067

摘要： The present invention belongs to the field of alkaline polymer electrolyte membranes, and relates to a comb-shaped structure polybenzimidazole anion exchange membrane with high conductivity and preparation method thereof. In the invention, firstly, polybenzimidazole is grafted with the non-cationic side chains to the max grafting rate to synthesize the de-protonated comb-shaped polybenzimidazole material, avoiding the N—H in benzimidazole forms ionic binding with cationic functional groups, which will reduce the reactivity and mobility of cationic groups; then react de-protonated comb-shaped polybenzimidazole with quaternization reagent to attach the pendent side chain with cationic functional groups, making it easy to aggregate to form ion clusters and hydrophilic/hydrophobic microphase separation. The anion exchange membrane prepared in this invention has excellent conductivity, mechanical properties and alkaline stability.

公开(公告)号：US20210119237A1

公开(公告)日：2021-04-22

申请号：US16859712

申请日：2020-04-27

申请人： KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： So Young LEE ,  Seung Ju LEE ,  Min Jae LEE ,  Hyun Seo PARK ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Suk Woo NAM ,  Young Suk JO ,  Yeong Cheon KIM

IPC分类号： H01M8/1051 ,  H01M8/103 ,  H01M8/1072

摘要： The present disclosure relates to a polymer electrolyte membrane for medium and high temperature, a preparation method thereof and a high-temperature polymer electrolyte membrane fuel cell including the same, more particularly to a technology of preparing a composite membrane including an inorganic phosphate nanofiber incorporated into a phosphoric acid-doped polybenzimidazole (PBI) polymer membrane by adding an inorganic precursor capable of forming a nanofiber in a phosphoric acid solution when preparing phosphoric acid-doped polybenzimidazole and using the same as a high-temperature polymer electrolyte membrane which is thermally stable even at high temperatures of 200-300° C. without degradation of phosphoric acid and has high ion conductivity.

公开(公告)号：US10797333B2

公开(公告)日：2020-10-06

申请号：US16066052

申请日：2016-11-22

申请人： HANGZHOU DIANZI UNIVERSITY

发明人： Haiying Qin ,  Cai Zhu ,  Yongping Hu ,  Kaijian Chen ,  Jiabin Liu ,  Zhe Kong ,  Hongbo Wang ,  Yan He ,  Zhenguo Ji

IPC分类号： H01M8/10 ,  H01M4/86 ,  H01M4/88 ,  H01M4/90 ,  H01M8/1044 ,  H01M8/1051 ,  H01M8/1072 ,  H01M8/1018

摘要： The present invention discloses a preparation method of an alkaline anion exchange membrane and a use of the membrane in a fuel cell. The preparation method of the alkaline anion exchange membrane contains: taking polyvinyl alcohol as a substrate, which provides mechanical strength for the membrane; taking a commercialized alkaline resin as an anion exchange resin of chemically reactive groups, performing a cross-linking reaction between polyvinyl alcohol and the alkaline resin by mixing; meanwhile, during the process of forming the alkaline anion exchange membrane, adding an organic salt of transition metal, and doping transition metal ions into the membrane. By taking advantages of catalytic characteristics of the transition metal ions, the fuel leaking from the anode of the cell can perform a catalytic reaction in time in the ion exchange membrane, and thereby improve an ion conductivity of the membrane and efficiently decrease a resistance of the cell. The fuel cell assembled by the anion exchange membrane prepared in the present invention shows an excellent power-generating property.

公开(公告)号：US10711093B2

公开(公告)日：2020-07-14

申请号：US16067913

申请日：2017-02-21

申请人： LG CHEM, LTD.

发明人： Sikwon Moon ,  Tae Geun Noh ,  Sungyeon Kim ,  Sujin Byun ,  Bong Hyun Jeong ,  Geungi Min ,  Jeongbae Lee

IPC分类号： C08G61/12 ,  C08J5/22 ,  H01M8/1004 ,  H01M8/1023 ,  H01M8/1039 ,  H01M8/1072 ,  H01M8/18 ,  B01J39/20 ,  B01J41/14 ,  H01M8/1032 ,  H01M8/1018

摘要： The present specification relates to an ion exchange membrane, an electrochemical cell, a flow battery and a fuel cell comprising the same, and a method for manufacturing the same.

公开(公告)号：US20200071445A1

公开(公告)日：2020-03-05

申请号：US16480505

申请日：2018-01-24

申请人： COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES

发明人： Pierrick Buvat ,  Janick Bigarré ,  Julien Cellier ,  Delphine Dru

IPC分类号： C08F292/00 ,  C08J5/22 ,  H01M8/1037 ,  H01M8/1039 ,  H01M8/1072

摘要： Silica particles bonded to polymer chains consisting of at least one polymer comprising at least one fluorinated styrene repeating unit comprising at least one proton-conducting group, optionally in the form of a salt, the bonding between the particles and each of the chains being carried out by an organic spacer group.

公开(公告)号：US20200055980A1

公开(公告)日：2020-02-20

申请号：US16553965

申请日：2019-08-28

申请人： Rensselaer Polytechnic Institute

发明人： Chulsung BAE ,  Woo-Hyung LEE

IPC分类号： C08G61/02 ,  H01M8/1004 ,  C25B13/08 ,  C09D165/00 ,  C09D5/14 ,  A01N29/00 ,  H01M8/1072 ,  H01M8/1039 ,  C08G10/00

摘要： Embodiments of the invention relate to a novel class of polymers with superior mechanical properties and chemical stability, as compared to known polymers. These polymers are particularly well suited for use in anion exchange membranes (AEMs), including those employed in fuel cells. Novel methods for the manufacture of these polymers are also described.