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公开(公告)号：US20220367895A1
公开(公告)日：2022-11-17
申请号：US17743303
申请日：2022-05-12
Applicant: Giner, Inc.
Inventor： Derek J. Strasser , Hui Xu
IPC: H01M8/1004 , H01M8/1041
Abstract: Membrane electrode assembly and method for fabricating the same. In one embodiment, the method may involve providing an anion exchange membrane and then applying catalyst coatings to opposing surfaces of the anion exchange membrane, whereby a membrane electrode assembly may be formed. Next, the membrane electrode assembly may be subjected to a two-part treatment process. In a first part of the process, the membrane electrode assembly may be swelled, at room temperature, by exposure to an aqueous ethanol solution vapor while being retained under tension in a frame. The aqueous ethanol solution vapor may be, for example, 80:20 by volume ethanol and water. In a second part of the process, the swollen membrane electrode assembly may be removed from the frame and then pressed, at room temperature, between two plates. A layer of rubber and a layer polytetrafluoroethylene may be placed between each plate and the swollen membrane electrolyte assembly.
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2.发明授权公开(公告)号：US11978912B2
公开(公告)日：2024-05-07
申请号：US17531461
申请日：2021-11-19
Inventor： Gang Wu , Hui Xu , Shengwen Liu , Shuo Ding
CPC classification number: H01M4/9075 , H01M4/9016 , H01M2008/1095
Abstract: Atomically dispersed platinum-group metal-free catalyst and method for synthesizing the same. According to one embodiment, the catalyst is made by a method in which, in a first step, a metal oxide/zeolitic imidazolate frameworks (ZIF) composite is formed by combining (i) nanoparticles of an oxide of at least one of iron, cobalt, nickel, manganese, and copper, (ii) a hydrated zinc salt, and (iii) an imidazole. Then, in a second step, the metal oxide/ZIF composite is thermally activated, i.e., carbonized, to form an M-N—C catalyst. Thereafter, the M-N—C catalyst may be mixed with a quantity of ammonium chloride, and then the M-N—C/NH4Cl mixture may be pyrolyzed. The foregoing NH4Cl treatment may improve the intrinsic activity of the catalyst. Then, a thin layer of nitrogen-doped carbon may be added to NH4Cl-treated M-N—C catalyst by chemical vapor deposition (CVD). Such CVD treatment may improve the stability of the catalyst.
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公开(公告)号：US20220416260A1
公开(公告)日：2022-12-29
申请号：US17849275
申请日：2022-06-24
Inventor： Gang Wu , Yachao Zeng , Zhi Qiao , Hui Xu , Shuo Ding
IPC: H01M4/92 , H01M4/88 , H01M8/1004
Abstract: Hybrid catalyst suitable for use in a proton exchange membrane fuel cell and method of preparing same. In one embodiment, the hybrid catalyst is iron-free and includes an Mn—N—C support and platinum-containing nanoparticles that are dispersed on the Mn—N—C support. The Mn—N—C support preferably comprises atomically dispersed and nitrogen coordinated MnN4 moieties and has a particle size of about 30 to 200 nm. The platinum-containing nanoparticles preferably have a particle size ranging from about 2 to 8 nm and are made of platinum or a platinum-cobalt intermetallic alloy, such as a cubic L12 Pt3Co alloy or a tetragonal L10 PtCo alloy. The hybrid catalyst may be made by combining a quantity of a hexachloroplatinic acid solution with a quantity of an Mn—N—C support, sonicating the mixture in an ice bath, freeze-drying the sonicated product, calcinating the freeze-dried product under a forming gas, and heating the calcinated product.
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公开(公告)号：US11965074B2
公开(公告)日：2024-04-23
申请号：US17836733
申请日：2022-06-09
Applicant: Giner, Inc.
Inventor： Derek J. Strasser , Hui Xu , Judith Lattimer
IPC: C08J5/22 , C08F226/02
CPC classification number: C08J5/2231 , C08F226/02 , C08J2339/00
Abstract: Anion exchange membrane and methods of making and using the same. In one embodiment, the anion exchange membrane may be made by a method that includes a two-step polymerization. In the first step, an α-olefin monomer containing a pendant halide, such as 8-bromo-1-octene, may be polymerized by Ziegler-Natta polymerization to form a first polymer portion, the first polymer portion being a homopolymer. In the second step, the polymerization is charged with a non-functionalized α-olefin monomer, such as ethylene, thereby forming a second polymer portion, the second polymer being a copolymer made up predominantly of the non-functionalized olefin monomer. If desired, a small amount of an α-olefin monomer containing a crosslinking functionality may be included in the first and/or second steps. Following the two-step polymerization, the polymer is fabricated into a thin film. Thereafter, the thin film may be functionalized by replacing the pendant halides with pendant cations.
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公开(公告)号：US20230399477A1
公开(公告)日：2023-12-14
申请号：US17836733
申请日：2022-06-09
Applicant: Giner, Inc.
Inventor： Derek J. Strasser , Hui Xu , Judith Lattimer
IPC: C08J5/22 , C08F226/02
CPC classification number: C08J5/2231 , C08F226/02 , C08J2339/00
Abstract: Anion exchange membrane and methods of making and using the same. In one embodiment, the anion exchange membrane may be made by a method that includes a two-step polymerization. In the first step, an α-olefin monomer containing a pendant halide, such as 8-bromo-1-octene, may be polymerized by Ziegler-Natta polymerization to form a first polymer portion, the first polymer portion being a homopolymer. In the second step, the polymerization is charged with a non-functionalized α-olefin monomer, such as ethylene, thereby forming a second polymer portion, the second polymer being a copolymer made up predominantly of the non-functionalized olefin monomer. If desired, a small amount of an α-olefin monomer containing a crosslinking functionality may be included in the first and/or second steps. Following the two-step polymerization, the polymer is fabricated into a thin film. Thereafter, the thin film may be functionalized by replacing the pendant halides with pendant cations.
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Patent Agency Ranking
公开(公告)号：US11124885B2
公开(公告)日：2021-09-21
申请号：US14742422
申请日：2015-06-17
Applicant: GINER, INC.
Inventor： Hui Xu , Cortney Mittelsteadt , Brian Rasimick , Allison Stocks
IPC: C25B9/23 , C25B9/40 , C25B9/65 , C25B11/067 , C25B11/077
Abstract: An anode catalyst suitable for use in an electrolyzer. The anode catalyst includes a support and a plurality of catalyst particles disposed on the support. The support may include a plurality of metal oxide or doped metal oxide particles. The catalyst particles, which may be iridium, iridium oxide, ruthenium, ruthenium oxide, platinum, and/or platinum black particles, may be arranged to form one or more aggregations of catalyst particles on the support. Each of the aggregations of catalyst particles may include at least 10 particles, wherein each of the at least 10 particles is in physical contact with at least one other particle. The support particles and their associated catalyst particles may be dispersed in a binder.
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公开(公告)号：US11024876B2
公开(公告)日：2021-06-01
申请号：US15801118
申请日：2017-11-01
Applicant: Giner, Inc.
Inventor： Hui Xu , Jarrod D. Milshtein , Katherine Harrison , Mario Moreira , Brian Rasimick
IPC: H01M10/0562 , H01M10/052 , H01M4/02 , H01M10/04 , H01M4/13
Abstract: A composite membrane that is suitable for use in an electrochemical cell, an electrochemical cell including the composite membrane, and a method of making the composite membrane. In one embodiment, the composite membrane includes a porous support and a solid electrolyte. The porous support is a unitary structure made of a polymer that is non-conductive to ions. The porous support is shaped to include a plurality of straight-through pores. The solid electrolyte has alkali ion conductivity and preferably completely fills at least some of the pores of the porous support. A variety of techniques may be used to load the solid electrolyte into the pores. According to one technique, the solid electrolyte is melted and then poured into the pores of the porous support. Upon cooling, the electrolyte re-solidifies, forming a monolithic structure within the pores of the porous support.
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公开(公告)号：US20180166741A1
公开(公告)日：2018-06-14
申请号：US15801118
申请日：2017-11-01
Applicant: Giner, Inc.
Inventor： Hui Xu , Jarrod D. Milshtein , Katherine Harrison , Mario Moreira , Brian Rasimick
IPC: H01M10/0562 , H01M10/052 , H01M10/04 , H01M4/02
CPC classification number: H01M10/0562 , H01M4/02 , H01M4/13 , H01M10/0486 , H01M10/052 , H01M2004/027 , H01M2004/028
Abstract: A composite membrane that is suitable for use in an electrochemical cell, an electrochemical cell including the composite membrane, and a method of making the composite membrane. In one embodiment, the composite membrane includes a porous support and a solid electrolyte. The porous support is a unitary structure made of a polymer that is non-conductive to ions. The porous support is shaped to include a plurality of straight-through pores. The solid electrolyte has alkali ion conductivity and preferably completely fills at least some of the pores of the porous support. A variety of techniques may be used to load the solid electrolyte into the pores. According to one technique, the solid electrolyte is melted and then poured into the pores of the porous support. Upon cooling, the electrolyte re-solidifies, forming a monolithic structure within the pores of the porous support.
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公开(公告)号：US20150368817A1
公开(公告)日：2015-12-24
申请号：US14742422
申请日：2015-06-17
Applicant: GINER, INC.
Inventor： Hui Xu , Cortney Mittelsteadt , Brian Rasimick , Allison Stocks
Abstract: An anode catalyst suitable for use in an electrolyzer. The anode catalyst includes a support and a plurality of catalyst particles disposed on the support. The support may include a plurality of metal oxide or doped metal oxide particles. The catalyst particles, which may be iridium, iridium oxide, ruthenium, ruthenium oxide, platinum, and/or platinum black particles, may be arranged to form one or more aggregations of catalyst particles on the support. Each of the aggregations of catalyst particles may include at least 10 particles, wherein each of the at least 10 particles is in physical contact with at least one other particle. The support particles and their associated catalyst particles may be dispersed in a binder.
Abstract translation: 适用于电解槽的阳极催化剂。 阳极催化剂包括载体和设置在载体上的多个催化剂颗粒。 载体可以包括多个金属氧化物或掺杂的金属氧化物颗粒。 催化剂颗粒可以是铱，氧化铱，钌，氧化钌，铂和/或铂黑颗粒，以在载体上形成一种或多种催化剂颗粒的聚集体。 催化剂颗粒的每个聚集体可以包括至少10个颗粒，其中至少10个颗粒中的每一个与至少一个其它颗粒物理接触。 载体颗粒及其相关的催化剂颗粒可以分散在粘合剂中。
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10.发明授权公开(公告)号：US12255338B2
公开(公告)日：2025-03-18
申请号：US17464458
申请日：2021-09-01
Inventor： Gang Wu , Hui Xu , Mengjie Chen , Fan Yang
IPC: H01M4/90 , H01M8/1004
Abstract: Atomically dispersed platinum-group metal-free catalyst and method for synthesizing the same. According to one embodiment, the catalyst is made by a method in which, in a first step, an Mn-doped ZIF-8 catalyst precursor is prepared by reacting a first solution comprising zinc nitrate hexahydrate and manganese chloride dissolved in an acid/water solution with a second solution comprising 2-methylimidazole dissolved in water. Then, in a second step, the Mn-doped ZIF-8 catalyst precursor is thermally activated, i.e., carbonized, to form an Mn—N—C catalyst. Preferably, the thermal activation is performed in a multistep fashion, first at a lower temperature of about 800° C. and then at a higher temperature of about 1100° C. After carbonization, the catalyst material may optionally be subjected to an absorption process, followed by a second thermal activation. The absorption process may involve dispersing the catalyst material in a solution of manganese chloride and urea in hydrochloric acid and isopropanol.
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