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

IPC: H01M4/92 ,  H01M4/86 ,  H01M4/88 ,  H01M4/90

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.

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

IPC: C25B9/10 ,  C25B1/10 ,  C25B13/02 ,  C25B13/08 ,  C25B11/04 ,  B01D67/00 ,  B01D71/06

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.

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.

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.

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.

公开(公告)号：US20160222488A1

公开(公告)日：2016-08-04

申请号：US14918486

申请日：2015-10-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Jong YOO ,  Jong Hyun JANG ,  Hyoung-Juhn KIM ,  Namgee JUNG ,  Suk Woo NAM ,  Jonghee HAN ,  Sung Pil YOON ,  Jaeyune RYU ,  Tae Hoon LIM ,  Jin Young KIM

IPC: C22C5/04

CPC classification number: C22C5/04

Abstract: Provided is a catalyst for oxygen reduction reaction comprising an alloy comprising at least one selected from Pt, Pd and Ir supported on a carbon carrier functionalized with poly(N-isopropylacrylamide) (PNIPAM). The catalyst for oxygen reduction reaction has electronic ensemble effects by virtue of the carbon carrier functionalized with poly(N-isopropylacrylamide) (PNIPAM), and thus shows improved oxygen reduction activity and durability as compared to conventional catalysts supported on carbon.

Abstract translation: 提供了一种氧还原反应的催化剂，其包含合金，其包含负载在用聚（N-异丙基丙烯酰胺）（PNIPAM）官能化的碳载体上的Pt，Pd和Ir中的至少一种。 用于氧还原反应的催化剂由于通过聚（N-异丙基丙烯酰胺）（PNIPAM）官能化的碳载体而具有电子集合效应，因此与负载在碳上的常规催化剂相比显示出改善的氧还原活性和耐久性。

公开(公告)号：US20160036065A1

公开(公告)日：2016-02-04

申请号：US14812289

申请日：2015-07-29

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seung Jun HWANG ,  Soo-Kil KIM ,  Sung Jong YOO ,  Jong Hyun JANG ,  Eun Ae CHO ,  Hyoung-Juhn KIM ,  Suk-Woo NAM ,  Tae Hoon LIM

IPC: H01M4/90

CPC classification number: H01M4/9041 ,  B82Y30/00 ,  B82Y40/00 ,  H01M4/921 ,  H01M4/926

Abstract: Disclosed is a method for producing a core-shell structured electrocatalyst for a fuel cell. The method includes uniformly supporting nano-sized core particles on a support to obtain a core support, and selectively forming a shell layer only on the surface of the core particles of the core support. According to the method, the core and the shell layer can be formed without the need for a post-treatment process, such as chemical treatment and heat treatment. Further disclosed is a core-shell structured electrocatalyst for a fuel cell produced by the method. The core-shell structured electrocatalyst has a large amount of supported catalyst and exhibits superior catalytic activity and excellent electrochemical properties. Further disclosed is a fuel cell including the core-shell structured electrocatalyst.

公开(公告)号：US20150311555A1

公开(公告)日：2015-10-29

申请号：US14627945

申请日：2015-02-20

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyoung-Juhn KIM ,  Jin Young KIM ,  Sung Jong YOO ,  Jong Hyun JANG ,  Eun Ae CHO ,  Sun-Hee CHOI ,  Jonghee HAN ,  Hyung Chul HAM ,  Dirk HENKENSMEIER

IPC: H01M8/10 ,  C08G73/10

CPC classification number: H01M8/103 ,  C08G73/18 ,  C08J5/22 ,  C08J5/2256 ,  C08J2379/04 ,  H01M8/083 ,  H01M8/1072 ,  H01M2008/1095 ,  H01M2300/0082 ,  Y02E60/521 ,  Y02P70/56

Abstract: A polybenzimidazole based polymer in which substituted or non-substituted benzyl groups are introduced to the two nitrogen atoms of benzimidazole ring. The benzimidazole ring is not decomposed by the attack of hydroxide ions but shows excellent alkali resistance, and thus maintains high ion conductivity. The polybenzimidazole based polymers are particularly useful for not only solid alkali exchange membrane fuel cells (SAEMFC) but also various industrial fields in which polybenzimidazole based polymers are used.

Abstract translation: 将取代或未取代的苄基引入苯并咪唑环的两个氮原子的聚苯并咪唑基聚合物。 苯并咪唑环不被氢氧根离子的侵蚀分解，但耐碱性优异，因此保持高的离子传导性。 基于聚苯并咪唑的聚合物不仅可用于固体碱交换膜燃料电池（SAEMFC），还可用于其中使用聚苯并咪唑的聚合物的各种工业领域。

公开(公告)号：US20140315118A1

公开(公告)日：2014-10-23

申请号：US14016687

申请日：2013-09-03

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Jong Hyun JANG ,  Hee-young PARK ,  Hyoung-Juhn KIM ,  Dirk HENKENSMEIER ,  Sung Pil YOON ,  Suk Woo NAM ,  Hyung Chul HAM ,  Tae-Hoon LIM ,  Jonghee HAN ,  Sung Jong YOO ,  Eun Ae CHO

IPC: H01M4/90 ,  H01M8/10

CPC classification number: H01M8/1004 ,  H01M4/921 ,  H01M4/923 ,  H01M4/926 ,  Y02P70/56

Abstract: A polymer electrolyte membrane fuel cell is provided. The polymer electrolyte membrane fuel cell includes a phosphoric acid-doped polyimidazole electrolyte membrane and a complex catalyst. In the complex catalyst, an alloy or mixture of a metal and a chalcogen element is supported on a carbon carrier. The polymer electrolyte membrane fuel cell exhibits further improved long-term operation, power generation efficiency, and operational stability at high temperature. The complex catalyst can be produced by a simple method.

Abstract translation: 提供了高分子电解质膜燃料电池。 聚合物电解质膜燃料电池包括磷酸掺杂的聚咪唑电解质膜和复合催化剂。 在复合催化剂中，金属和硫族元素的合金或混合物负载在碳载体上。 聚合物电解质膜燃料电池在高温下表现出进一步提高的长期运行，发电效率和操作稳定性。 复合催化剂可以通过简单的方法制备。

公开(公告)号：US20140004446A1

公开(公告)日：2014-01-02

申请号：US13929954

申请日：2013-06-28

Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Sung Pil YOON ,  Jonghee HAN ,  Shin Ae SONG ,  Tae Hoon LIM ,  Hyoung-Juhn KIM ,  Jong Hyun JANG ,  Dirk HENKENSMEIER ,  Eun Ae CHO ,  Suk Woo NAM ,  Seong Ahn HONG ,  Thieu CAM-ANH

IPC: H01M8/12

CPC classification number: H01M8/126 ,  C04B35/50 ,  C04B35/62675 ,  C04B35/62685 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3244 ,  C04B2235/3298 ,  C04B2235/77 ,  C04B2235/85 ,  H01M8/1266 ,  H01M2300/0074 ,  H01M2300/0091 ,  Y02E60/521 ,  Y02E60/525 ,  Y02P70/56

Abstract: Provided are a ceria-based composition having an undoped or metal-doped ceria and an undoped or metal-doped bismuth oxide, wherein the undoped or metal-doped bismuth oxide is present in an amount equal to or more than about 10 wt % and less than about 50 wt % based on the total weight of the ceria-based composition, and at least one selected from the ceria and the bismuth oxide is metal-doped. The ceria-based composition may ensure high sintering density even at a temperature significantly lower than the known sintering temperature of about 1400° C., i.e., for example at a temperature of about 1000° C. or lower, and increase ion conductivity as well.

Abstract translation: 提供了一种具有未掺杂或金属掺杂的二氧化铈和未掺杂或金属掺杂的氧化铋的二氧化铈基组合物，其中未掺杂或金属掺杂的氧化铋以等于或大于约10重量％的量存在 相对于二氧化铈基组合物的总重量为约50重量％，并且选自二氧化铈和氧化铋中的至少一种是金属掺杂的。 即使在显着低于约1400℃的已知烧结温度的温度下，即例如在约1000℃或更低的温度下，二氧化铈基组合物也可确保高的烧结密度，并且还增加离子传导性 。