公开(公告)号：US20230275240A1

公开(公告)日：2023-08-31

申请号：US18302695

申请日：2023-04-18

Applicant: Versa Power Systems Ltd. c/o FuelCell Energy, Inc.

Inventor： Casy Cloudless BROWN ,  Khun Bong LUC ,  Cameron James RANKIN

IPC: H01M8/026 ,  H01M8/2432 ,  H01M8/0271 ,  H01M8/2475 ,  H01M8/2485

CPC classification number: H01M8/026 ,  H01M8/2432 ,  H01M8/0271 ,  H01M8/2475 ,  H01M8/2485 ,  H01M2008/1293

Abstract: A base plate assembly for an electrochemical cell stack includes a bottom end plate defining a fuel inlet port, a fuel outlet port, and an oxidant port. The base plate assembly further includes a high strength sealing plate including openings that align with the fuel inlet port, the fuel outlet port, and the oxidant port, and a plurality of tubes located between the bottom end plate and the high strength sealing plate. The tubes are configured to yield to reduce transfer of mechanical stress from the high strength sealing plate to the bottom end plate.

公开(公告)号：US11728494B2

公开(公告)日：2023-08-15

申请号：US16668344

申请日：2019-10-30

Applicant: Versa Power Systems Ltd.

Inventor： Casy Cloudless Brown ,  Khun Bong Luc ,  Cameron James Rankin

IPC: H01M8/026 ,  H01M8/0271 ,  H01M8/2432 ,  H01M8/2475 ,  H01M8/2485 ,  H01M8/12

CPC classification number: H01M8/026 ,  H01M8/0271 ,  H01M8/2432 ,  H01M8/2475 ,  H01M8/2485 ,  H01M2008/1293

Abstract: An electrochemical cell unit comprises a first electrochemical cell comprising a first oxidant electrode and a first fuel electrode, and a second electrochemical cell comprising a second oxidant electrode and a second fuel electrode. An interconnect interposed between the first electrochemical cell and the second electrochemical cell. The interconnect comprises an interconnect main body defining a longitudinal channel along a longitudinal axis thereof. The interconnect main body includes a plurality of corrugations defining a plurality of fuel channels on a first surface of the interconnect main body facing the first electrochemical cell, and a plurality of oxidant channels on a second surface of the interconnect main body facing the second electrochemical cell. Each of the plurality of fuel channels and the plurality of oxidant channel positioned around the longitudinal channel.

公开(公告)号：US20220246966A1

公开(公告)日：2022-08-04

申请号：US17541575

申请日：2021-12-03

Applicant: VERSA POWER SYSTEMS LTD

Inventor： Casy Cloudless BROWN

IPC: H01M8/0668

Abstract: A fuel cell system includes a fuel cell module having an inlet and an outlet. The fuel cell module receives a fuel stream including gaseous fuel and expels a depleted fuel stream. The system also includes an exhaust processing module disposed relative to the fuel cell module such that waste heat from the fuel cell module is usable by the exhaust processing module. The system is configured to direct a first portion of the depleted fuel stream to the exhaust processing module, where the depleted fuel stream includes depleted fuel and at least one gaseous byproduct including oxygen and carbon dioxide. The exhaust processing module subjects the first portion of the depleted fuel stream to co-electrolysis using the waste heat from the fuel cell module to produce a fuel-enriched stream. The system is configured to direct the fuel-enriched stream to the inlet of the fuel cell module.

公开(公告)号：US09559364B2

公开(公告)日：2017-01-31

申请号：US14939581

申请日：2015-11-12

Applicant: Versa Power Systems, LTD.

Inventor： Anthony Wood ,  Zheng Tang

IPC: H01M4/02 ,  H01M4/90 ,  H01M4/86 ,  H01M4/92 ,  H01M8/02 ,  H01M8/12 ,  H01M4/88 ,  H01G11/52

CPC classification number: H01M4/9058 ,  H01G11/52 ,  H01M4/8621 ,  H01M4/8642 ,  H01M4/8652 ,  H01M4/8882 ,  H01M4/9066 ,  H01M4/921 ,  H01M8/0232 ,  H01M8/0241 ,  H01M8/0297 ,  H01M8/124 ,  H01M8/1246 ,  H01M8/2432 ,  H01M2004/8689 ,  H01M2008/1293 ,  Y02E60/13 ,  Y02E60/521 ,  Y02E60/525 ,  Y02P70/56

Abstract: A solid oxide fuel cell having a plurality of planar layered fuel cell units, an electrically conductive flow separator plate disposed between each of the fuel cell units, and a cathode contact material element disposed between each cathode electrode of the fuel cell units and each electrically conductive flow separator plate. The cathodes of the individual fuel cell units are modified such that the operating temperatures of the cathodes are matched with the temperatures they experience based upon their locations in the fuel cell stack. The modification involves adding to the cathode contact material and/or cathode at least one alloying agent which modifies the temperature of the cathode electrodes based upon the location of the cathode electrodes within the fuel cell stack. These alloying agents react with a component of the cathode electrode to form alloys.

Abstract translation: 一种具有多个平面层状燃料电池单元的固体氧化物燃料电池，设置在各个燃料电池单元之间的导电流动隔板，以及设置在燃料电池单元的各阴极之间的阴极接触材料元件， 流动分离板。 单个燃料电池单元的阴极被修改为使得阴极的操作温度与其经历的基于其在燃料电池堆中的位置的温度相匹配。 该修改包括向阴极接触材料和/或阴极添加至少一种根据阴极电极在燃料电池堆内的位置来改变阴极电极的温度的合金化剂。 这些合金化剂与阴极的成分反应形成合金。

公开(公告)号：US20250116022A1

公开(公告)日：2025-04-10

申请号：US18820832

申请日：2024-08-30

Applicant: VERSA POWER SYSTEMS, LTD.

Inventor： Casy Cloudless Brown

IPC: C25B15/02 ,  C25B9/70 ,  C25B15/08

Abstract: A method of operating a solid oxide electrolysis cell (SOEC) system at partial load, the SOEC system including a plurality of branches each including at least one SOEC stack, includes determining a thermally neutral target voltage and cycling an ON phase and an OFF phase for each of the branches such that the SOEC system operates at an average operating power equal to a chosen percentage of the operating power at the thermally neutral target voltage. In the ON phase, the SOEC stacks in a given branch operate at the thermally neutral target voltage, and in the OFF phase, the SOEC stacks in the given branch are unloaded to an open circuit voltage and operate at 0% of rated power. The frequency of OFF phases for each branch is determined such that stronger or healthier branches have a lower frequency of OFF cycles than weaker or less healthy branches.

公开(公告)号：US20230144524A1

公开(公告)日：2023-05-11

申请号：US17942468

申请日：2022-09-12

Applicant: VERSA POWER SYSTEMS, LTD

Inventor： Anthony WOOD ,  Zheng TANG ,  Tahir JOIA

IPC: H01M4/88 ,  H01M8/10

CPC classification number: H01M4/8885 ,  H01M8/10 ,  H01M2004/8684

Abstract: A method of manufacturing a proton-conducting fuel cell includes assembling a green anode-electrolyte half-cell by forming an anode substrate layer having an upper surface and a lower surface, forming an anode functional layer on the upper surface of the anode substrate layer, forming an electrolyte layer on an upper surface of the anode functional layer, and forming a stress balancing layer on the lower surface of the anode substrate layer. The method further includes positioning the green anode-electrolyte half-cell on kiln furniture inside a sintering kiln and sintering the green anode-electrolyte half-cell using SSRS to an anode-electrolyte half-cell.

公开(公告)号：US20210257642A1

公开(公告)日：2021-08-19

申请号：US17184172

申请日：2021-02-24

Applicant: VERSA POWER SYSTEMS, LTD

Inventor： Anthony WOOD ,  Tahir JOIA

IPC: H01M8/1213 ,  H01M4/90

Abstract: The present technology is directed to a solid oxide cell that may be used as a solid oxide fuel cell or a solid oxide electrolyser cell. The solid oxide cell is configured to avoid deformation caused by differential shrinking via incorporation of an oxygen barrier layer which mitigates the damage caused by the introduction of an oxidizing environment in the anode cavity during the operation of the solid oxide cell as a solid oxide fuel cell.

公开(公告)号：US20250030027A1

公开(公告)日：2025-01-23

申请号：US18908419

申请日：2024-10-07

Applicant: VERSA POWER SYSTEMS, LTD

Inventor： Anthony WOOD ,  Tahir JOIA

IPC: H01M8/1213 ,  C25B9/23 ,  C25B11/032 ,  C25B13/07 ,  H01M4/86 ,  H01M4/90 ,  H01M8/12 ,  H01M8/1246

Abstract: A solid oxide cell includes a porous solid cathode layer including a first cathode surface and a second cathode surface; a solid electrolyte layer including a first electrolyte surface and a second electrolyte surface, with the first electrolyte surface disposed toward the second cathode surface; a porous cermet anode functional layer (AFL) including a first AFL surface and a second AFL surface, the first AFL surface contacting the second electrolyte surface; a porous cermet anode substrate (AS) including a first AS surface and a second AS surface, the first AS surface contacting the second AFL surface; and a porous cermet oxidation barrier layer (OBL) including a first OBL surface and a second OBL surface, the first OBL surface contacting the second AS surface.

公开(公告)号：US12091762B2

公开(公告)日：2024-09-17

申请号：US17391621

申请日：2021-08-02

Applicant: VERSA POWER SYSTEMS, LTD

Inventor： Casy Cloudless Brown

IPC: C25B15/02 ,  C25B1/02 ,  C25B9/19 ,  C25B9/65 ,  C25B9/70 ,  C25B13/07

CPC classification number: C25B15/02 ,  C25B1/02 ,  C25B9/19 ,  C25B9/65 ,  C25B9/70 ,  C25B13/07

Abstract: A method of operating a solid oxide electrolysis cell (SOEC) system at partial load, where the SOEC system includes a plurality of branches electrically connected in parallel, and each branch includes at least one SOEC stack. The method includes determining a thermally neutral target voltage below which operation is endothermic and above which operation is exothermic; and executing pulse width modulation current control by cycling an ON phase and an OFF phase for each branch such that the SOEC system operates at an average operating power equal to a chosen percentage of the operating power at the thermally neutral target voltage. In the ON phase, all of the SOEC stacks in a branch operate at the thermally neutral target voltage, and in the OFF phase, all of the SOEC stacks in the branch operate at 0% power. Each branch is configured to be operated independently of the other branches.

公开(公告)号：US20240250281A1

公开(公告)日：2024-07-25

申请号：US18416414

申请日：2024-01-18

Applicant: VERSA POWER SYSTEMS LTD.

Inventor： Casy Cloudless Brown

IPC: H01M8/249 ,  C25B1/04 ,  C25B9/77 ,  C25B15/08 ,  H01M8/04014 ,  H01M8/04119 ,  H01M8/0656 ,  H01M8/0662 ,  H01M8/12 ,  H01M8/2425

CPC classification number: H01M8/249 ,  C25B1/04 ,  C25B9/77 ,  C25B15/083 ,  H01M8/04022 ,  H01M8/04156 ,  H01M8/0656 ,  H01M8/0662 ,  H01M8/2425 ,  H01M2008/1293

Abstract: A solid oxide fuel cell system includes a first fuel cell stack including a first anode section and a first cathode section. The first anode section is configured to receive an input stream including fuel, and to output a first output stream including residual fuel and water. A second fuel cell stack includes a second anode section and a second cathode section. The second anode section is configured to receive a mixed stream and to output a second output stream including residual fuel and water. Each of the first and second cathode section is configured to receive inlet air and to output exhaust air. A separating junction is configured to receive and separate the second output stream into a recycle stream and an exhaust stream. A combining junction is configured to receive the first output stream and the recycle stream, and to combine these streams to output the mixed stream.