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公开(公告)号：US11791486B2
公开(公告)日：2023-10-17
申请号：US17693568
申请日：2022-03-14
发明人： Ju Hae Jung , Sun Hee Jo
IPC分类号： H01M8/04664 , H01M8/04955 , H01M8/043
CPC分类号： H01M8/04679 , H01M8/043 , H01M8/04955 , H01M2250/20
摘要： A method for operating a fuel cell power generation system is presented and includes sequentially resting fuel cell modules corresponding to a designated reference module number, from among all fuel cell modules of the fuel cell power generation system, during a designated number of cycles while operating remaining fuel cell modules, gradually reducing a number of the fuel cell modules sequentially rested during the cycles from the reference module number, whenever average performance of the fuel cell modules is sequentially reduced by exceeding designated reference levels configured to be sequentially set, and repairing or replacing the fuel cell modules when the average performance of the fuel cell modules is reduced by a designated lower limit or more.
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2.发明公开公开(公告)号：US20230253603A1
公开(公告)日：2023-08-10
申请号：US17873346
申请日：2022-07-26
发明人： Hyun Bae Dong , Yong Min Kim , Ju Hae Jung , Sun Hee Jo
IPC分类号： H01M8/248 , H01M8/2404
CPC分类号： H01M8/248 , H01M8/2404
摘要： A fastening jig for fastening a pair of end plates provided on opposite sides of a cell stack body, in which a plurality of unit cells are stacked along a stacking direction includes a first insertion part inserted into a first insertion recess formed in any one of the end plates such that movement thereof in the stacking direction and an opposite direction thereto is restricted, an extension part extending from the first insertion part along the stacking direction, and a second insertion part extending from a distal end of the extension part in the stacking direction, inserted into a second insertion recess formed in the other one of the end plates, and configured to press the other one of the end plates.
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公开(公告)号：US20230290965A1
公开(公告)日：2023-09-14
申请号：US17888105
申请日：2022-08-15
发明人： Hyun Bae Dong , Won Jung Kim , Ju Hae Jung
IPC分类号： H01M8/04029 , H01M8/04119 , H01M8/04701 , H01M8/04007
CPC分类号： H01M8/04029 , H01M8/04164 , H01M8/04141 , H01M8/04723 , H01M8/04067
摘要： A fuel cell cooling system may include a fuel cell module including a fuel cell stack, a cooling module that includes a cooling tower in which cooling fluid is accommodated and adjusts a temperature of the fuel cell module, a heat exchanger that exchanges heat between first circulation cooling water circulating in the fuel cell module and second circulation cooling water circulating in the cooling tower, and a condensate supply line connected to the cooling tower to supply, to the cooling tower, water generated in a power generation process of the fuel cell module.
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公开(公告)号：US20230025752A1
公开(公告)日：2023-01-26
申请号：US17693568
申请日：2022-03-14
发明人： Ju Hae Jung , Sun Hee Jo
IPC分类号： H01M8/04664 , H01M8/043 , H01M8/04955
摘要： A method for operating a fuel cell power generation system is presented and includes sequentially resting fuel cell modules corresponding to a designated reference module number, from among all fuel cell modules of the fuel cell power generation system, during a designated number of cycles while operating remaining fuel cell modules, gradually reducing a number of the fuel cell modules sequentially rested during the cycles from the reference module number, whenever average performance of the fuel cell modules is sequentially reduced by exceeding designated reference levels configured to be sequentially set, and repairing or replacing the fuel cell modules when the average performance of the fuel cell modules is reduced by a designated lower limit or more.
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5.发明公开公开(公告)号：US20230307675A1
公开(公告)日：2023-09-28
申请号：US17973168
申请日：2022-10-25
发明人： Ju Hae Jung , Yong Min Kim , Hyun Bae Dong , Sun Hee Jo
IPC分类号： H01M8/04858 , H01M8/04537 , H01M8/04302 , H01M8/04225 , H01M8/04955
CPC分类号： H01M8/0494 , H01M8/04619 , H01M8/04302 , H01M8/04225 , H01M8/04955
摘要： A fuel cell generation system control apparatus performs a method for controlling power of a fuel cell generation system. A monitoring device monitors power of the one or more fuel cell modules. A controller compensates for power of one or more first fuel cell modules by one or more second fuel cell modules, based on the monitored power, and performs power control of the one or more fuel cell modules. The fuel cell generation system control apparatus addresses a problem in which power of the fuel cell generation system is reduced as there is a change in external environment or an increase in driving time upon power control of a multi-module fuel cell system.
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6.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
发明人： 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分类号： G01R31/392 , H01M8/04664 , H01M8/1004 , G01R31/367 , H01M8/04537
摘要： 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：US11489183B2
公开(公告)日：2022-11-01
申请号：US17011416
申请日：2020-09-03
发明人： Ju Hae Jung , Hyun Bae Dong
IPC分类号： H01M8/04992 , H01M8/04119 , H01M8/04082 , H01M8/04746 , H01M8/0432 , H01M8/04828 , H01M8/04029 , H01M8/04701
摘要： A fuel cell system includes a fuel cell stack including fuel and air electrodes, a fuel gas supply module configured to supply hydrogen and oxygen, as fuel gases, to the fuel cell stack, a fuel gas supply line including channels through which the fuel gases are supplied to the fuel cell stack, a humidification module disposed in the fuel gas supply line and configured to supply moisture to the fuel gases, and a controller configured to control the fuel gas supply line such that the fuel gases bypass the humidification module and are directly supplied to the fuel cell stack when temperature of the fuel cell stack is determined low at an initial stage of operation of the fuel cell stack, and the fuel gases pass through the humidification module and are supplied to the fuel cell stack when the temperature reaches a normal temperature.
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公开(公告)号：US20210328244A1
公开(公告)日：2021-10-21
申请号：US17011416
申请日：2020-09-03
发明人： Ju Hae Jung , Hyun Bae Dong
IPC分类号： H01M8/04992 , H01M8/04119 , H01M8/04082 , H01M8/04746 , H01M8/0432 , H01M8/04828 , H01M8/04029 , H01M8/04701
摘要： A fuel cell system includes a fuel cell stack including fuel and air electrodes, a fuel gas supply module configured to supply hydrogen and oxygen, as fuel gases, to the fuel cell stack, a fuel gas supply line including channels through which the fuel gases are supplied to the fuel cell stack, a humidification module disposed in the fuel gas supply line and configured to supply moisture to the fuel gases, and a controller configured to control the fuel gas supply line such that the fuel gases bypass the humidification module and are directly supplied to the fuel cell stack when temperature of the fuel cell stack is determined low at an initial stage of operation of the fuel cell stack, and the fuel gases pass through the humidification module and are supplied to the fuel cell stack when the temperature reaches a normal temperature.
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9.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
发明人： 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分类号： H01M8/04664 , H01M8/1004 , H01M8/04537 , G01R31/392 , G01R31/367
摘要： 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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