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公开(公告)号：US20190071786A1
公开(公告)日：2019-03-07
申请号：US16122640
申请日：2018-09-05
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun JANG , Seunghoe CHOE , Youngseung NA , Hye Jin LEE , Hyoung-Juhn KIM , Dirk Henkensmeier , Sung Jong YOO , Jin Young KIM , So Young LEE , Hyun Seo PARK
Abstract: Provided is a membrane electrode assembly for a proton exchange membrane water electrolyzer, including: an oxygen electrode including an iridium oxide (IrO2) layer which is an electrodeposited oxygen electrode layer on a titanium (Ti) layer which is a diffusion layer; a hydrogen electrode in which a hydrogen electrode layer is formed on a diffusion layer; and an electrolyte membrane placed between the oxygen electrode layer and the hydrogen electrode layer, in which a portion of the pores of the Ti diffusion layer are filled with an electrolyte of the electrolyte membrane.
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12.发明申请公开(公告)号：US20180254490A1
公开(公告)日：2018-09-06
申请号：US15910304
申请日：2018-03-02
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Sung Jong YOO , Jue-hyuk JANG , So Young LEE , Jin Young KIM , Jong Hyun JANG , Hyoung-Juhn KIM , Namgee JUNG , Hyun Seo PARK
CPC classification number: H01M4/9041 , B01J21/18 , B01J23/75 , H01M4/88 , H01M4/9083 , H01M2008/1095
Abstract: A catalyst containing a carbon support and a core-shell nanoparticle supported on the carbon support, wherein a core of the core-shell nanoparticle is cobalt metal not containing a heterogeneous element and the shell contains carbon. The catalyst for an oxygen reduction reaction of the present disclosure is a catalyst in which the cobalt core-carbon shell nanoparticle is supported on the carbon support through ligand stabilization and heat treatment. The catalyst can be synthesized to have high dispersibility. In particular, it can be used as an electrode catalyst of a cathode to improve the oxygen reduction activity and durability of a fuel cell operating under an alkaline atmosphere.
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公开(公告)号：US20180202970A1
公开(公告)日：2018-07-19
申请号：US15861998
申请日：2018-01-04
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： So Young LEE , Hyoung-Juhn Kim , Young Seung Na , Jin Young Kim , Sung Jong Yoo , Jong Hyun Jang , Jonghee Han , Suk Woo Nam
Abstract: An ionic conductivity measurement device of an electrolytic membrane includes a humidification chamber configured to accommodate an ion-conductive electrolytic membrane and having concave grooves respectively formed at both sides thereof which face the electrolytic membrane to form a measurement space for measuring ionic conductivity of the electrolytic membrane; a plurality of channels formed at a bottom surface of each of the concave grooves; a gas distribution unit detachably coupled to each of the concave grooves with the electrolytic membrane being interposed therebetween; and a plurality of electrodes provided in contact with one side of the electrolytic membrane and supported by the gas distribution unit, the plurality of electrodes being disposed side by side to measure an impedance of the electrolytic membrane.
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公开(公告)号：US20230006216A1
公开(公告)日：2023-01-05
申请号：US17571662
申请日：2022-01-10
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： So Young LEE , Seung Ju LEE , Jin Hyeon CHOI , Jeawoo JUNG , Hyoung-Juhn KIM , Sung Jong YOO , Hee-Young PARK , Bora SEO , Jin Young KIM , Jong Hyun JANG
IPC: H01M4/86 , H01M8/1004 , H01M8/1018 , H01M4/90 , H01M4/92
Abstract: The present disclosure relates to antioxidant for a polymer electrolyte membrane fuel cell electrode catalyst, which includes cerium hydrogen phosphate (HCe2(PO4)3(H2O)) in the form of a nanofiber, and an electrode and a membrane-electrode assembly including the same. The electrode for a polymer electrolyte membrane fuel cell of the present disclosure, wherein the antioxidant is dispersed, can improve the mechanical strength of an electrode catalyst layer and can minimize deterioration of chemical durability even after long-term operation. And, a fuel cell including the same can exhibit high output performance and can operate stably even after long-term operation.
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公开(公告)号：US20220181646A1
公开(公告)日：2022-06-09
申请号：US17677723
申请日：2022-02-22
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun JANG , Hyun Seo PARK , Hee-Young PARK , Katie Heeyum LIM , Oh Sub KIM , Hyoung-Juhn KIM , Jin Young KIM , Sung Jong YOO , Dirk HENKENSMEIR , So Young LEE
Abstract: Disclosed are a catalyst electrode for a fuel cell, a method for fabricating the catalyst electrode, and a fuel cell including the catalyst electrode. The presence of an ionomer-ionomer support composite in the catalyst electrode prevents the porous structure of the catalyst electrode from collapsing due to oxidation of a carbon support to avoid an increase in resistance to gas diffusion and can stably secure proton channels. The presence of carbon materials with high conductivity is effective in preventing the electrical conductivity of the electrode from deterioration resulting from the use of a metal oxide in the ionomer-ionomer support composite and is also effective in suppressing collapse of the porous structure of the electrode to prevent an increase in resistance to gas diffusion in the electrode. Based on these effects, the fuel cell exhibits excellent performance characteristics and prevents its performance from deteriorating during continuous operation.
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Patent Agency Ranking
公开(公告)号：US20210332486A1
公开(公告)日：2021-10-28
申请号：US17038331
申请日：2020-09-30
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： So Young LEE , Hyoung-Juhn KIM , Sae Yane BAEK , Taekyung LEE , Sung Jong YOO , Jong Hyun JANG , Hee-Young PARK , Jin Young KIM , Hyun S. PARK
Abstract: The present disclosure discloses an asymmetric electrolyte membrane, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same. More particularly, it discloses an asymmetric electrolyte membrane having a porous layer and a dense layer at the same time, a membrane electrode assembly including the same, a water electrolysis apparatus including the same and a method for manufacturing the same.
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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
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： 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: H01M8/1051 , H01M8/103 , H01M8/1072
Abstract: 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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18.发明申请公开(公告)号：US20210066741A1
公开(公告)日：2021-03-04
申请号：US16814619
申请日：2020-03-10
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyun Seo PARK , Ahyoun LIM , Ju Sung LEE , Hee-Young PARK , So Young LEE , Jin Young KIM , Sung Jong YOO , Dirk HENKENSMEIER , Jong Hyun JANG , Hyoung-Juhn KIM
IPC: H01M8/18 , H01M8/1004 , H01M8/1231 , H01M4/90 , H01M4/92 , H01M4/86
Abstract: Disclosed is a high temperature-type unitized regenerative fuel cell using water vapor, which exhibits high hydrogen (H2) production efficiency and superior power generation ability.
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公开(公告)号：US20180138534A1
公开(公告)日：2018-05-17
申请号：US15686689
申请日：2017-08-25
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Jong Hyun JANG , Hyoung-Juhn KIM , Sung Jong YOO , Jin Young KIM , Hyung Chul HAM , Dirk HENKENSMEIER , So Young LEE , Hyun Seo PARK , Youngseung NA , Min Gwan HA
IPC: H01M8/1018 , H01M8/00 , H01M8/0276
CPC classification number: H01M8/1018 , H01M8/006 , H01M8/0258 , H01M8/0271 , H01M8/0276 , H01M8/1009 , H01M2008/1095
Abstract: Disclosed is an electrochemical reaction cell enhancing a reduction reaction. The electrochemical reaction cell enhancing a reduction reaction comprises: a membrane electrode assembly including a polymer electrolytic membrane, a cathode formed by sequentially stacking a first gas diffusion layer and a first catalyst layer on one surface of the electrolytic membrane, and an anode formed by sequentially stacking a second catalyst layer and a second gas diffusion layer on the other surface of the electrolytic membrane; a first distribution plate stacked on the first catalyst layer to supply a reaction gas and a cathode electrolytic solution dissolved with the reaction gas to the first catalyst layer along separate channels; and a second distribution plate stacked on the second gas diffusion layer to supply an anode electrolytic solution to the second gas diffusion layer.
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公开(公告)号：US20230366113A1
公开(公告)日：2023-11-16
申请号：US17951197
申请日：2022-09-23
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY , IUCF-HYU (Industry-University Cooperation Foundation Hanyang University)
Inventor： So Young LEE , Hyoung-Juhn KIM , Sae Yane BAEK , Ju Yeon LEE , Young Moo LEE , Nanjun CHEN , Jong Hyeong PARK
Abstract: Disclosed are a membrane electrode assembly for water electrolysis, a water electrolysis cell including the membrane electrode assembly, and a method for fabricating the membrane electrode assembly. An anion exchange membrane of the membrane electrode assembly for water electrolysis includes a polymer having a stable backbone without aryl ether linkages and containing piperidinium groups with high chemical stability and phenyl-based blocks with excellent mechanical properties introduced therein. Due to its structure, the polymer has improved alkaline stability and processability and excellent mechanical properties, based on which the durability of the membrane electrode assembly can be improved. Therefore, the membrane electrode assembly for water electrolysis can be used to manufacture a water electrolyzer with high current density, low resistance, and improved life characteristics.
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