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公开(公告)号：US11608276B2
公开(公告)日：2023-03-21
申请号：US17036726
申请日：2020-09-29
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Dong Won Chun , Sung Jong Yoo , Jaeyoung Hong , Hee-Young Park , Young-Su Lee , Jin-Yoo Suh , Jee-Hwan Bae , Min Kyung Cho
Abstract: According to an embodiment of the present invention, the method includes: (a) preparing a liquid cell containing a palladium precursor solution; (b) applying electron beams to the palladium precursor solution contained in the liquid cell; and (c) generating palladium hydride nanoparticles having the hcp crystal structure in the palladium precursor solution.
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2.发明申请公开(公告)号：US20210013530A1
公开(公告)日：2021-01-14
申请号：US16824898
申请日：2020-03-20
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION , KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyun Bae Dong , Min Kyung Cho , Won Jung Kim , Ju Hae Jung , Jong Hyun Jang , Hyun Seo Park , Myung Su Lim , Jun Young Kim
IPC: H01M8/04664 , H01M8/1004 , H01M8/04537 , G01R31/392 , G01R31/367
Abstract: A method of predicting a life of a membrane electrode assembly (MEA) of a fuel cell for electric power generation includes: deriving an operating condition for accelerated degradation, which is applicable to the fuel cell; operating the fuel cell for a specific time under the derived operating condition for accelerated degradation and under a normal operating condition, and identifying the degree of degradation of the fuel cell under each of the operating conditions; calculating an acceleration multiple based on the degree of degradation identified under the operating condition for accelerated degradation and under the normal operating condition; and predicting the life of the membrane electrode assembly based on the acceleration multiple.
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公开(公告)号：US11777136B2
公开(公告)日：2023-10-03
申请号：US16725656
申请日：2019-12-23
Applicant: KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Kyung Yoon Chung , Dong Hyun Kim , Juhyeon Ahn , Jaeho Park , Ji-Young Kim , Min Kyung Cho , Byung Won Cho , Hun-Gi Jung , Minah Lee , Seungho Yu , Hyungseok Kim
IPC: H01M10/054 , H01M4/04 , H01M4/505 , H01M10/0525 , H01M4/525 , H01M10/0569
CPC classification number: H01M10/054 , H01M4/0445 , H01M4/0459 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0569
Abstract: Disclosed is a method of preparing a cathode active material useful in a sodium ion secondary battery having high reversible capacity and excellent cycle characteristics. The method for preparing a cathode active material composed of Zrw-doped NaxLiyMzOa includes the steps of (A) doping LiyMzOa with Zrw to provide Zrw-doped LiyMzOa; and (B) dissociating Li ion from the Zrw-doped LiyMzOa and inserting Na ion thereto to provide the Zrw-doped NaxLiyMzOa, wherein M is selected from Ti, V, Cr, Mn, Fe, Co, Ni, Mo, Ru, and combinations thereof, and wherein 0.005
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4.发明授权公开(公告)号：US11309560B2
公开(公告)日：2022-04-19
申请号：US16824898
申请日：2020-03-20
Applicant: HYUNDAI MOTOR COMPANY , KIA MOTORS CORPORATION , KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY
Inventor： Hyun Bae Dong , Min Kyung Cho , Won Jung Kim , Ju Hae Jung , Jong Hyun Jang , Hyun Seo Park , Myung Su Lim , Jun Young Kim
IPC: G01R31/392 , H01M8/04664 , H01M8/1004 , G01R31/367 , H01M8/04537
Abstract: A method of predicting a life of a membrane electrode assembly (MEA) of a fuel cell for electric power generation includes: deriving an operating condition for accelerated degradation, which is applicable to the fuel cell; operating the fuel cell for a specific time under the derived operating condition for accelerated degradation and under a normal operating condition, and identifying the degree of degradation of the fuel cell under each of the operating conditions; calculating an acceleration multiple based on the degree of degradation identified under the operating condition for accelerated degradation and under the normal operating condition; and predicting the life of the membrane electrode assembly based on the acceleration multiple.
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