专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明申请

US20170077535A1 ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY ("EIS") ANALYZER AND METHOD OF USING THEREOF 审中-公开
标题翻译：电化学阻抗谱（“EIS”）分析仪及其使用方法
公开(公告)号：US20170077535A1
公开(公告)日：2017-03-16
申请号：US14853030
申请日：2015-09-14
申请人： BLOOM ENERGY CORPORATION
发明人： Karthick SUDHAN S , Bhavana GANESH , Abhishek DUDHMANDE , Ranganathan GURUNATHAN , Ian RUSSELL
IPC分类号： H01M8/04537 , H01M8/04298
CPC分类号： H01M8/04649 , H01M8/04305 , H01M8/04589 , H01M8/04679 , H01M8/04753 , H01M8/0491 , H01M8/04992
摘要： Systems, methods, and devices of the various embodiments provide a hardware and software architecture enabling electrochemical impedance spectroscopy (“EIS”) to be performed on multiple electrochemical devices, such as fuel cells, at the same time without human interaction with the electrochemical devices and to use EIS to dynamically monitor the performance of a fuel cell system. Embodiment methods may include determining an impedance of a set of fuel cells using electrochemical impedance spectroscopy, determining an ohmic polarization of the set of fuel cells from the impedance, determining a concentration polarization of the set of fuel cells from the impedance, comparing the ohmic polarization of the set of fuel cells to a first threshold, comparing the concentration polarization of the set of fuel cells to a second threshold, and initiating a corrective action when the ohmic polarization is above the first threshold or when the concentration polarization is below the second threshold.
摘要翻译：各种实施例的系统，方法和装置提供硬化和软件架构，其能够在多个电化学装置（例如燃料电池）上同时执行电化学阻抗谱（“EIS”），而不与人体与电化学装置相互作用，使用EIS动态监测燃料电池系统的性能。实施方案可以包括使用电化学阻抗谱法确定一组燃料电池的阻抗，从阻抗确定燃料电池组的欧姆极化，从阻抗确定燃料电池组的浓度极化，比较欧姆极化将所述燃料电池组转换为第一阈值，将所述燃料电池组的浓度极化与第二阈值进行比较，以及当所述欧姆极化高于所述第一阈值时或者当所述浓度极化低于所述第二阈值时启动校正动作。

22. 发明申请

US20170003239A1 APPARATUS FOR MEASURING MICRO-CRACKS IN A MEMBRANE ELECTRODE ASSEMBLY AND METHOD FOR PREDICTING GENERATION OF MICRO-CRACKS IN THE SAME 审中-公开
标题翻译：用于测量膜电极组件中的微裂纹的装置和用于预测其中的微裂纹的产生的方法
公开(公告)号：US20170003239A1
公开(公告)日：2017-01-05
申请号：US14942390
申请日：2015-11-16
申请人： Hyundai Motor Company , Korea Advanced Institute of Science and Technology
发明人： Byeong-Heon Jeong , Bo Ki Hong , Jong Kil Oh , Taek-Soo Kim , Sanwi Kim , Kyung-Rim Jang
IPC分类号： G01N27/20 , H01M8/04664 , G06T7/00 , G01N21/95 , G01N3/08 , H01M8/04537 , H01M8/04298
CPC分类号： G06T7/0004 , G01M99/00 , G01N3/08 , G01N21/8422 , G01N21/95 , G01N27/205 , G01N2203/0066 , G06T2207/10056 , G06T2207/30108 , H01M8/00
摘要： An apparatus for measuring micro-cracks in a membrane electrode assembly includes a resistance measurement unit to measure variation in electrical resistance of the membrane electrode assembly while tensioning the membrane electrode assembly in a state in which power is applied to an upper catalyst layer while a lower catalyst layer is insulated, an image capture unit to capture an image of micro-cracks in the upper catalyst layer while the membrane electrode assembly is being tensioned, and a controller to detect, in real time, variation in electrical resistance measured by the resistance measurement unit, corresponding to the image of micro-cracks captured by the image capture unit, and to interpret the size of the micro-cracks generated in the membrane electrode assembly based on the detected variation in electrical resistance.
摘要翻译：一种用于测量膜电极组件中的微裂纹的装置，包括：电阻测量单元，用于测量膜电极组件的电阻变化，同时在对上部催化剂层施加电力的状态下张紧膜电极组件，同时下部催化剂层被绝缘，图像捕获单元在膜电极组件被张紧的同时捕获上部催化剂层中的微裂纹的图像，以及控制器，实时检测由电阻测量测量的电阻变化单元，其对应于由图像捕获单元捕获的微裂纹的图像，并且基于检测到的电阻变化来解释在膜电极组件中产生的微裂纹的尺寸。

23. 发明授权

US11545687B1 Systems and methods of restoring fuel cell system performance 有权
公开(公告)号：US11545687B1
公开(公告)日：2023-01-03
申请号：US16162900
申请日：2018-10-17
申请人： BLOOM ENERGY CORPORATION
发明人： Karthick Sudhan , Amit Nawathe , Abhishek Dudhmande , Vijay Radhakrishnan , Padiadpu Shankara Anantha
IPC分类号： H01M8/04298 , H01M8/0662 , H01M8/04089 , H01M8/2465
摘要： A fuel cell system performance recovery method includes applying a DC current load pulse waveform to one or more of the fuel cells for a recovery period sufficient to desorb a contaminant from the one or more fuel cells.

24. 发明授权

US11545683B2 Methods and apparatus for detecting electrical short circuits in fuel cell stacks 有权
公开(公告)号：US11545683B2
公开(公告)日：2023-01-03
申请号：US16381522
申请日：2019-04-11
申请人： Greenlight Innovation Corporation
发明人： Amir Masoud Niroumand , Michael Hermann Eikerling , Mark Randall Olfert , Hooman Homayouni
IPC分类号： H01M8/04537 , H01M8/04089 , H01M8/1018 , H01M8/0444 , H01M8/04791 , G01N27/26 , H01M8/04298
摘要： Methods and apparatus for detecting electrical short circuits in fuel cell stacks are provided. The methods involve supplying a reactant and an inert gas to a fuel cell stack and measuring the open circuit voltage of fuel cell assemblies in the fuel cell stack. The sensitivity of the methods can be adjusted to detect an electrical short circuit having a resistance at or below a particular threshold short-circuit resistance value, by using a suitable reactant concentration in the method. The methods can include determining a set-point reactant concentration that can be used to detect an electrical short circuit having a resistance at or below a particular threshold short-circuit resistance value.

25. 发明申请

US20220246962A1 ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY ("EIS") ANALYZER AND METHOD OF USING THEREOF 有权
公开(公告)号：US20220246962A1
公开(公告)日：2022-08-04
申请号：US17722059
申请日：2022-04-15
申请人： BLOOM ENERGY CORPORATION
发明人： Karthick SUDHAN S , Bhavana GANESH , Abhishek DUDHMANDE , Ranganathan GURUNATHAN , Ian RUSSELL
IPC分类号： H01M8/04537 , H01M8/04298 , H01M8/04746 , H01M8/04664 , H01M8/04858 , H01M8/04992
摘要： Systems, methods, and devices of the various embodiments provide a hardware and software architecture enabling electrochemical impedance spectroscopy (“EIS”) to be performed on multiple electrochemical devices, such as fuel cells, at the same time without human interaction with the electrochemical devices and to use EIS to dynamically monitor the performance of a fuel cell system. Embodiment methods may include determining an impedance of a set of fuel cells using electrochemical impedance spectroscopy, determining an ohmic polarization of the set of fuel cells from the impedance, determining a concentration polarization of the set of fuel cells from the impedance, comparing the ohmic polarization of the set of fuel cells to a first threshold, comparing the concentration polarization of the set of fuel cells to a second threshold, and initiating a corrective action when the ohmic polarization is above the first threshold or when the concentration polarization is below the second threshold.

26. 发明申请

US20220179382A1 POWER PREDICTION DEVICE AND POWER PREDICTION METHOD 有权
公开(公告)号：US20220179382A1
公开(公告)日：2022-06-09
申请号：US17643039
申请日：2021-12-07
申请人： TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION
发明人： Takashi AKIBA , Shingo TAMARU , Fumiyuki YAMANE , Hirofumi KURITA
IPC分类号： G05B19/042 , G01W1/10 , H01M8/04298 , H01M8/04992 , G06Q30/02 , G06Q50/06 , G06N5/02 , G06N20/00
摘要： A power prediction device according to the present embodiments includes an evaluation-value generator and a prediction circuit. The evaluation-value generator is configured to generate a time-series evaluation value based on a time-series error of weather-related forecast data. The prediction circuit is configured to, as for a time and an amount of power of demand response that changes a pattern of power consumption or power production, predict at least the time in accordance with the time-series evaluation value.

27. 发明授权

US11309572B2 Fuel cell stack assembly and method of operating the same 有权
公开(公告)号：US11309572B2
公开(公告)日：2022-04-19
申请号：US16245663
申请日：2019-01-11
申请人： BLOOM ENERGY CORPORATION
发明人： David Edmonston , Martin Perry , James Wilson , Ramesha Guntanur , Paturi Balaji Narasimha Prasad
IPC分类号： H01M8/04298 , H01M8/0612 , H01M8/243 , H01M8/2432 , H01M8/248 , H01M8/2485 , H01M8/249 , H01M8/0208 , H01M8/12
摘要： A fuel cell stack assembly and method of operating the same are provided. The assembly includes a fuel cell stack column and side baffles disposed on opposing sides of the column. The side baffles and the fuel cell stack may have substantially the same coefficient of thermal expansion at room temperature. The side baffles may have a laminate structure in which one or more channels are formed.

28. 发明申请

US20220109170A1 Device and Computer-Implemented Method for Determining a State of a Fuel Cell System 有权
公开(公告)号：US20220109170A1
公开(公告)日：2022-04-07
申请号：US17489209
申请日：2021-09-29
申请人： Robert Bosch GmbH
发明人： Christoph Zimmer , Jochen Braun , Sebastian Gerwinn , Sriganesh Sriram , Volker Imhof
IPC分类号： H01M8/04298 , H01M8/04537
摘要： A device and method are disclosed for operating a fuel cell system having a fuel cell stack. Data are provided that map input variables of the fuel cell system and a position of a cell of the fuel cell stack on a voltage of the cell. A model is trained to map the input variables of the fuel cell system and the position of a cell of the fuel cell stack on a probability distribution for a prediction of a voltage of the cell. Instantaneous input variables of the fuel cell system are determined. A probability for the voltage of the cell or for a total voltage of the fuel cell stack is determined for a cell of the fuel cell stack based on the input variables using the model based on the probability distribution. A state of the fuel cell system is determined based on the probability.

29. 发明授权

US11223056B2 Fuel cell system 有权
公开(公告)号：US11223056B2
公开(公告)日：2022-01-11
申请号：US16280404
申请日：2019-02-20
申请人： Toyota Jidosha Kabushiki Kaisha
发明人： Kohei Oda
IPC分类号： H01M8/04298 , G01R31/382 , H01M16/00 , H01M10/613 , H01M10/625 , H01M10/63 , H01M10/44
摘要： A fuel cell system includes a power supply circuit that supplies electric power from a fuel cell and a secondary battery to the load and charges the secondary battery with electric power from the fuel cell. A decision value acquirer monitors a charge-discharge state of the secondary battery and obtains a decision value that is used to determine a degree of localization of an ion concentration in an electrolytic solution in the secondary battery. When the decision value becomes equal to or greater than a predetermined reference value, a controller limits discharge of the secondary battery. When the decision value is equal to or greater than the reference value and the required power decreases, the controller limits a decrease in output power of the fuel cell and causes the secondary battery to be charged with the electric power corresponding to the limitation imposed on the decrease in output power.

30. 发明授权

US10680262B2 Fuel cell system and control method of the same 有权
公开(公告)号：US10680262B2
公开(公告)日：2020-06-09
申请号：US16151423
申请日：2018-10-04
申请人： TOYOTA JIDOSHA KABUSHIKI KAISHA
发明人： Chihiro Uchimura , Yukihide Yokoyama , Takayoshi Hamano
IPC分类号： H01M8/0438 , H01M8/04313 , H01M8/04746 , H01M8/04694 , H01M8/04298 , H01M8/04089 , H01M8/04082 , H01M8/04302
摘要： A fuel cell system includes a supply channel having first channels respectively connected with tanks, and a second channel merged with each of the first channels; first on-off valves of the first channels; a second on-off valve of the second channel; and a controller configured to control opening and closing of the first on-off valves and the second on-off valve. In a state where the second on-off valve is closed, the controller supplies first electric power used for opening the first on-off valve against a first differential pressure to at least one first on-off valve, and supplies second electric power, smaller than the first electric power and used for opening the first on-off valves against a second differential pressure smaller than the first differential pressure, to the first on-off valves other than the at least one first on-off valve.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式