公开(公告)号：US10593962B2

公开(公告)日：2020-03-17

申请号：US15294372

申请日：2016-10-14

Applicant: BLOOM ENERGY CORPORATION

Inventor： Harald Herchen ,  Matthias Gottmann ,  Ian Russell ,  Jonathan Cerrona ,  Cheng-yu Lin

IPC: B22F3/093 ,  B22F3/03 ,  B30B11/02 ,  B22F5/00 ,  H01M8/0208 ,  H01M8/0206 ,  B22F7/08 ,  H01M8/0232 ,  B30B15/30 ,  B30B15/00 ,  H01M8/12 ,  H01M8/124 ,  H01M8/0228 ,  H01M8/021

Abstract: Methods for fabricating an interconnect for a fuel cell system that include forming a metal powder into a preform structure, positioning the preform structure in a die cavity of a press apparatus, and compressing the preform structure in the press apparatus to form the interconnect. Further embodiments include use of thin inserts in the die cavity to provide reduced permeability and/or including filler material in the die cavity.

公开(公告)号：US09570769B2

公开(公告)日：2017-02-14

申请号：US14886893

申请日：2015-10-19

Applicant: BLOOM ENERGY CORPORATION

Inventor： Stephen Couse ,  Daniel Darga ,  Harald Herchen ,  Chockkalingam Karuppaiah

IPC: H01M8/04 ,  H01M8/02 ,  B22F5/10 ,  B22F3/02 ,  B22F3/12 ,  B22F5/00 ,  H01M8/12 ,  C22C1/04

CPC classification number: H01M8/04201 ,  B22F3/02 ,  B22F3/12 ,  B22F5/00 ,  B22F5/10 ,  B22F2998/10 ,  C22C1/04 ,  H01M8/0202 ,  H01M8/0208 ,  H01M8/021 ,  H01M8/0247 ,  H01M8/0258 ,  H01M8/026 ,  H01M8/1246 ,  H01M8/2425 ,  H01M2008/1293 ,  Y02E60/50 ,  Y02E60/525 ,  B22F3/10

Abstract: Methods for fabricating an interconnect for a fuel cell stack include placing a compressed metal powder interconnect on a porous support, and sintering the interconnect in the presence of a non-oxidizing gas. The method may further include placing the sintered interconnect on a porous support, and oxidizing the interconnect in the presence of flowing air, or placing the sintered interconnect on a dense, non-porous support, and oxidizing the interconnect in the presence of a gas comprising pure oxygen or an oxygen/inert gas mixture that is substantially nitrogen-free.

Abstract translation: 用于制造用于燃料电池堆的互连的方法包括将压缩的金属粉末互连件放置在多孔载体上，以及在非氧化性气体的存在下烧结互连。 该方法还可以包括将烧结的互连件放置在多孔载体上，并在存在流动空气的情况下氧化互连，或将烧结的互连件放置在致密的无孔支撑体上，以及在包含 纯氧或基本上无氮的氧/惰性气体混合物。

公开(公告)号：US20150221957A1

公开(公告)日：2015-08-06

申请号：US14687365

申请日：2015-04-15

Applicant: BLOOM ENERGY CORPORATION

Inventor： Harald Herchen ,  Chockkalingam Karuppaiah ,  Tad Armstrong ,  Avinash Verma

IPC: H01M8/02 ,  B22F5/00 ,  B22F7/08 ,  B22F3/02

CPC classification number: B22F7/08 ,  B22F3/02 ,  B22F3/08 ,  C22C1/045 ,  C23C24/02 ,  H01M8/0206 ,  H01M8/0215 ,  H01M8/0228 ,  H01M2008/1293 ,  Y02P70/56

Abstract: Methods of fabricating an interconnect for a fuel cell stack include providing a powder in a die cavity of a powder press apparatus, where the powder includes at least one of a pre-alloyed powder and a pre-sintered powder, compressing the powder in the die cavity of the powder press apparatus using high velocity compaction to form a pressed powder interconnect, and incorporating the pressed powder interconnect into a fuel cell stack, wherein the pressed powder interconnect is incorporated into the fuel cell stack without first sintering the pressed powder interconnect.

Abstract translation: 制造用于燃料电池堆的互连的方法包括在粉末压制装置的模腔中提供粉末，其中粉末包括预合金粉末和预烧结粉末中的至少一种，将模具中的粉末压缩 使用高速压实的粉末压制装置的空腔形成压制粉末互连，并将挤压的粉末互连结合到燃料电池堆中，其中将压制的粉末互连件并入燃料电池堆中而不首先烧结压制的粉末互连。

公开(公告)号：US20130230644A1

公开(公告)日：2013-09-05

申请号：US13781206

申请日：2013-02-28

Applicant: BLOOM ENERGY CORPORATION

Inventor： Tad Armstrong ,  James Wilson ,  Harald Herchen ,  Daniel Darga ,  Manoj Pillai

IPC: H01M8/02

CPC classification number: H01M8/0228 ,  B22F3/162 ,  B22F5/00 ,  B22F7/008 ,  B22F7/02 ,  B22F7/04 ,  B22F7/06 ,  B22F2998/10 ,  C22C27/06 ,  C23C4/02 ,  C23C4/11 ,  C23C4/134 ,  C23C4/18 ,  C23C24/06 ,  C23C24/082 ,  C23C28/04 ,  H01M8/0208 ,  H01M8/0245 ,  H01M8/12 ,  H01M2008/1293 ,  H01M2300/0074 ,  Y02E60/50 ,  Y02E60/525

Abstract: Various methods of treating a chromium iron interconnect for a solid oxide fuel cell stack and coating the interconnect with a ceramic layer are provided.

Abstract translation: 提供了用于固体氧化物燃料电池堆处理铬铁互连以及用陶瓷层涂覆互连的各种方法。

公开(公告)号：US11962041B2

公开(公告)日：2024-04-16

申请号：US17221147

申请日：2021-04-02

Applicant: BLOOM ENERGY CORPORATION

Inventor： Avinash Verma ,  Chockkalingam Karuppaiah ,  Harald Herchen ,  Cheng-Yu Lin ,  Martin Perry

IPC: H01M50/522 ,  B22F3/24 ,  B22F10/28 ,  B22F10/50 ,  B22F10/62 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  H01M8/0208

CPC classification number: H01M50/522 ,  B22F10/28 ,  B22F10/50 ,  B22F10/62 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y80/00 ,  H01M8/0208 ,  B22F2003/242 ,  B22F2201/03 ,  B22F2201/11 ,  B22F2301/20 ,  B22F2301/35 ,  B22F2998/10 ,  B33Y10/00

Abstract: A method of forming a fuel cell interconnect includes depositing a Cr alloy powder, sintering the Cr alloy powder, and repeating the depositing and the sintering to form the fuel cell interconnect. The Cr alloy powder may include a pre-alloyed powder containing from about 4 wt. % to about 6 wt. % Fe, and from about 94 wt. % to about 96 wt. % Cr.

公开(公告)号：US10962492B2

公开(公告)日：2021-03-30

申请号：US15927415

申请日：2018-03-21

Applicant: BLOOM ENERGY CORPORATION

Inventor： Cheng-Yu Lin ,  Daniel Darga ,  Michael Groesch ,  Harald Herchen ,  Vijay Srivatsan

IPC: G01N25/16 ,  G01N27/02

Abstract: Methods and systems for measuring and/or estimating a coefficient of thermal expansion (CTE) of a component of a fuel cell system. A CTE measurement technique includes securing a measurement member over a surface of the component via a seal having a melting point, heating the seal above its melting point of the seal, cooling the component, measurement member and seal to a second temperature below the melting point of the seal, and determining the CTE of the component based on the change in the span of the measurement member after cooling. A fuel cell component characterization technique includes measuring an electrical resistivity (ER), conductivity (EC), resistance or conductance of the component, measuring at least one additional property of the component which, together with ER, EC, resistance or conductance, correlates to the CTE of the component, and sorting the component based on the measurements.

公开(公告)号：US10079393B1

公开(公告)日：2018-09-18

申请号：US14592338

申请日：2015-01-08

Applicant: BLOOM ENERGY CORPORATION

Inventor： Avinash Verma ,  Ravi Oswal ,  Brandon Dawson ,  Brian Bollinger ,  Harald Herchen ,  Tad Armstrong

IPC: H01M8/02 ,  H01M8/0245 ,  B22F7/02 ,  B22F7/04 ,  B22F7/00 ,  B22F3/12 ,  B22F3/24 ,  B22F3/26 ,  B22F5/00 ,  B05D3/02 ,  H01M8/0202 ,  H01M8/12

CPC classification number: H01M8/0202 ,  B22F5/006 ,  B22F7/008 ,  B22F7/02 ,  B22F7/04 ,  B22F2003/248 ,  B22F2007/045 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/0408 ,  C22C1/0433 ,  C22C33/0207 ,  H01M8/0206 ,  H01M8/021 ,  H01M8/0217 ,  H01M8/0228 ,  H01M2008/1293 ,  B22F2201/03 ,  B22F1/0011 ,  B22F1/0096 ,  B22F3/02 ,  B22F3/10 ,  B22F7/062

Abstract: Methods for fabricating an interconnect for a fuel cell stack that include providing a protective layer over at least one surface of an interconnect formed by powder pressing pre-alloyed particles containing two or more metal elements and annealing the interconnect and the protective layer at elevated temperature to bond the protective layer to the at least one surface of the interconnect.

公开(公告)号：US09678501B2

公开(公告)日：2017-06-13

申请号：US14149187

申请日：2014-01-07

Applicant: Bloom Energy Corporation

Inventor： Stephen Couse ,  Tulin Akin ,  Matthias Gottmann ,  Harald Herchen ,  Arne Ballantine

IPC: G05B19/418

CPC classification number: G05B19/4183 ,  G05B2219/49302 ,  G06T7/00 ,  G06T7/001 ,  H01M8/00 ,  H01M8/04952 ,  H01M2250/00 ,  Y02P90/10

Abstract: Systems and methods for fuel cell stack part serialization and tracking. In an embodiment, a barcode may be applied to a fuel cell stack part which may identify the fuel cell stack part. In an embodiment, the barcode may be applied as ink on a green fuel cell stack part prior to sintering. In an embodiment, a portion of a fuel cell stack part may be imaged and pattern recognition techniques may be utilized to identify the fuel cell stack part based on the unique features of fuel cell stack part. In an embodiment, portion of a fuel cell stack part may be measured to generate one or more series of unique volume/area values and one or more series of unique volume/area values may be utilized to identify the fuel cell stack part.

公开(公告)号：US20170110746A1

公开(公告)日：2017-04-20

申请号：US15291299

申请日：2016-10-12

Applicant: BLOOM ENERGY CORPORATION

Inventor： Jerome A. Mack ,  Jonathan Cerrona ,  John Fisher ,  James Wilson ,  Tad Armstrong ,  Harald Herchen

IPC: H01M8/04664 ,  G01M3/04 ,  H01M8/0444 ,  H01M8/1253 ,  H01M8/04537

CPC classification number: H01M8/04679 ,  H01M8/04447 ,  H01M8/04462 ,  H01M8/04477

Abstract: Systems and methods for testing a fuel cell stack include a vacuum source, a test head including at least one isolated vacuum plenum configured to be positioned in fluid communication with a first portion of the fuel cell stack, the isolated vacuum plenum in fluid communication with the vacuum source, and a detector in fluid communication with the at least one isolated vacuum plenum for detecting the presence of a particular constituent of a fluid provided in a second portion of the fuel cell stack, where the second portion of the fuel cell stack is separated from the first portion of the fuel cell stack by at least one of an electrolyte and a fuel cell seal.

公开(公告)号：US09468736B2

公开(公告)日：2016-10-18

申请号：US14543095

申请日：2014-11-17

Applicant: BLOOM ENERGY CORPORATION

Inventor： Daniel Darga ,  Tad Armstrong ,  Vijay Srivatsan ,  Harald Herchen ,  Cheng-Yu Lin

IPC: H01M8/0208 ,  H01M8/0228 ,  A61M16/14 ,  A61M16/04 ,  A61M16/06 ,  A61M16/20 ,  A61M15/00 ,  A61M16/08

CPC classification number: A61M16/14 ,  A61M15/0015 ,  A61M15/0018 ,  A61M15/0021 ,  A61M15/0065 ,  A61M15/0086 ,  A61M16/04 ,  A61M16/06 ,  A61M16/08 ,  A61M16/0816 ,  A61M16/208 ,  A61M2205/0233 ,  A61M2240/00 ,  H01M8/0208 ,  H01M8/0228 ,  H01M8/0271 ,  H01M8/2425 ,  H01M8/2465 ,  H01M8/2483 ,  H01M8/2484 ,  H01M2008/1293 ,  Y02E60/50 ,  Y02E60/525 ,  Y02P70/56

Abstract: A method of making an interconnect for a solid oxide fuel cell stack includes providing a chromium alloy interconnect and providing a nickel mesh in contact with a fuel side of the interconnect. Formation of a chromium oxide layer is reduced or avoided in locations between the nickel mesh and the fuel side of the interconnect. A Cr—Ni alloy or a Cr—Fe—Ni alloy is located at least in the fuel side of the interconnect under the nickel mesh.

Abstract translation: 制造用于固体氧化物燃料电池堆的互连的方法包括提供铬合金互连并提供与互连的燃料侧接触的镍网。 在镍网和互连的燃料侧之间的位置减少或避免形成氧化铬层。 Cr-Ni合金或Cr-Fe-Ni合金至少位于镍网下的互连件的燃料侧。