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公开(公告)号：US20240279413A1
公开(公告)日：2024-08-22
申请号：US18641651
申请日：2024-04-22
发明人： Chulsung BAE
IPC分类号： C08J5/22 , C08F8/04 , C08F8/06 , C08F8/36 , C08F36/06 , C08F36/08 , C08K5/37 , C08L25/08 , C08L53/02 , C08L65/02 , C08L71/12 , C08L81/06 , H01M8/10 , H01M8/1023 , H01M8/1072 , H01M8/1088
CPC分类号： C08J5/2231 , C08F8/04 , C08F8/06 , C08F8/36 , C08F36/06 , C08F36/08 , C08K5/37 , C08L25/08 , C08L53/025 , C08L65/02 , C08L71/12 , C08L81/06 , H01M8/1023 , H01M8/1072 , H01M8/1088 , C08L2312/00 , H01M2008/1095
摘要： The electrochemical energy conversion system include an anode, a cathode, and a proton exchange membrane disposed between the anode and the cathode. The proton exchange membrane includes a polymer having a hard block polymer, a soft block polymer, and one or more hydrophilic functional groups attached to the soft block polymer. The glass transition temperature of the hard block polymer is higher than a glass transition temperature of the soft block polymer, such that the hard block polymer is non-elastic and the soft block polymer is elastic at a desired operating temperature. The hydrophilic functional groups are attached to the soft block polymer via a thiol-ene reaction to modify double bonds in the soft block polymer. The swellable functional groups are selectively connected to the soft domains of the block copolymers, so that when the membrane swells (under hydration or gas adsorption), the stress is effectively absorbed by the soft domain and the impact on overall mechanical properties is minor, resulting in more durable membranes.
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公开(公告)号：US20240157353A1
公开(公告)日：2024-05-16
申请号：US18381149
申请日：2023-10-17
发明人： Chulsung Bae , Eun Joo Park , Sangtaik Noh , Michael Pagels
IPC分类号： B01J41/14 , B01J39/20 , C08J5/22 , H01M8/1032 , H01M8/1072
CPC分类号： B01J41/14 , B01J39/20 , C08J5/2287 , H01M8/1032 , H01M8/1072 , H01M2008/1095
摘要： The electrochemical energy conversion system of the present disclosure includes an anode, a cathode, and an ion exchange membrane including a polymer having an aromatic polymer chain and an alkylated substrate including an alkyl chain, and at least one ionic group. The alkylated substrate is bound to at least one aromatic group in the polymer chain via Friedel-Crafts alkylation of the at least one aromatic group. The alkylation reaction utilizes a haloalkylated tertiary alcohol or a haloalkylated alkene as a precursor. In the presence of an acid catalyst, a carbocation is generated in the precursor which reacts with the aromatic rings of the polymer chain. The at least one ionic group is then replaced with a desired cationic or anionic group using a substitution reaction. The membranes exhibit advantageous stability achieved through a simplified and scalable reaction scheme.
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公开(公告)号：US11949137B2
公开(公告)日：2024-04-02
申请号：US17269835
申请日：2020-03-19
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 , H01M8/1081 , H01M8/1086
CPC分类号： H01M8/1072 , C08G73/18 , H01M8/1067 , H01M8/1081 , H01M8/1086
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.
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公开(公告)号：US11901505B2
公开(公告)日：2024-02-13
申请号：US17750062
申请日：2022-05-20
发明人： Liangbing Hu , Tian Li , Chunpeng Yang , Xin Zhang , Robert M. Briber , Meiling Wu
IPC分类号： H01M10/056 , H01M8/1072 , H01M10/0525 , C08J5/22 , H01M8/10
CPC分类号： H01M10/056 , C08J5/2256 , H01M8/1072 , H01M10/0525 , H01M2008/1095 , H01M2300/0082
摘要： An ion-conducting structure comprises a metal-fibril complex formed by one or more elementary nanofibrils. Each elementary nanofibril can be composed of a plurality of cellulose molecular chains with functional groups. Each elementary nanofibril can also have a plurality of metal ions. Each metal ion can act as a coordination center between the functional groups of adjacent cellulose molecular chains so as to form a respective ion transport channel between the cellulose molecular chains. The metal-fibril complex can comprise a plurality of second ions. Each second ion can be disposed within one of the ion transport channels so as to be intercalated between the corresponding cellulose molecular chains. In some embodiments, the metal-fibril complex is formed as a solid-state structure.
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公开(公告)号：US20230128992A1
公开(公告)日：2023-04-27
申请号：US18077346
申请日：2022-12-08
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.
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公开(公告)号：US11600837B2
公开(公告)日：2023-03-07
申请号：US16595871
申请日：2019-10-08
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.
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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
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公开(公告)号：US11158876B2
公开(公告)日：2021-10-26
申请号：US16572544
申请日：2019-09-16
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.
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公开(公告)号：US20210202972A1
公开(公告)日：2021-07-01
申请号：US17269835
申请日：2020-03-19
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.
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公开(公告)号：US20210119237A1
公开(公告)日：2021-04-22
申请号：US16859712
申请日：2020-04-27
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.
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