SOFCRoll Development at St. Andrews Fuel Cells Ltd.

2006 ◽  
Vol 4 (2) ◽  
pp. 138-142 ◽  
Author(s):  
Fran G. E. Jones ◽  
Paul A. Connor ◽  
Alan J. Feighery ◽  
Julie Nairn ◽  
Jim Rennie ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Single Unit ◽  
Tape Casting ◽  
Performance Testing ◽  
Production Costs ◽  
Cell Components ◽  
And Performance ◽  
The University ◽  
Power Densities

St. Andrews Fuel Cells Ltd. is a spin-off company (formed in February 2005) from the University of St. Andrews. The company’s focus is on the development of the SOFCRoll fuel cell. The SOFCRoll design is produced from tape casting and is fired in a single unit, offering reduced fuel cell production costs. Additionally, the self-supporting nature of the SOFCRoll geometry removes the need for thick cell components, further reducing cell cost and offering increased power densities. This paper reviews the development of the SOFCRoll concerning the processing and performance testing.

Seals and Sealants in PEM Fuel Cell Environments: Material, Design, and Durability Challenges

2004 ◽  
Author(s):  
David A. Dillard ◽  
Shu Guo ◽  
Michael W. Ellis ◽  
John J. Lesko ◽  
John G. Dillard ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Material Design ◽  
Pem Fuel Cells ◽  
Cell System ◽  
Energy Utilization ◽  
Utilization Efficiency ◽  
Cell Components ◽  
And Performance ◽  
The Cost

Fuel cells have significant potential to improve energy utilization efficiency, but remain quite expensive due to the cost of key components, including the membrane of PEM fuel cells, the catalyst, and the bipolar plates. Due to the cost and significance of these items, extensive research has been devoted to reducing cost and improving the quality and performance of these components. By contrast, seals, sealants, and adhesives play a more mundane role in the overall performance of fuel cells, and yet the failure of these materials can lead to reduced system efficiency, system failure, or even safety concerns. Less attention has been given to the performance and durability of these products, yet as improvements in other fuel cell components are made, these seals are becoming a more critical link in the long term performance of fuel cells. This review paper highlights the importance and background of fuel cell seals; discusses the chemical, thermal, and mechanical environments to which fuel cell seals are subjected; and suggests design and testing protocol improvements that may lead to improved fuel cell system performance.

Current progress and performance improvement of Pt/C catalysts for fuel cells

2020 ◽  
Vol 8 (46) ◽  
pp. 24284-24306
Author(s):  
Xuefeng Ren ◽  
Yiran Wang ◽  
Anmin Liu ◽  
Zhihong Zhang ◽  
Qianyuan Lv ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Energy Conversion ◽  
Performance Improvement ◽  
Electric Energy ◽  
Energy Conversion Efficiency ◽  
High Energy ◽  
Carnot Cycle ◽  
High Energy Conversion Efficiency ◽  
And Performance

Fuel cell is an electrochemical device, which can directly convert the chemical energy of fuel into electric energy, without heat process, not limited by Carnot cycle, high energy conversion efficiency, no noise and pollution.

Manufacturing Processes of Solid Oxide Fuel Cell Components

2007 ◽  
Vol 336-338 ◽  
pp. 498-501
Author(s):  
Xian Feng Jiang ◽  
Min Fang Han ◽  
Su Ping Peng
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Screen Printing ◽  
Sol Gel ◽  
Tape Casting ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Cell Components ◽  
One Step ◽  
Made In

The all processes for manufacturing materials parts of solid oxide fuel cell (SOFC) are discussed in the paper. The films are made in one step by the ways of APS, VPS, EVD, which are usually used to produce the electrolyte and interconnect. The films are thin and good gas-resistance, but with relatively high cost. All parts of SOFC are made by the following ways, such as sol-gel, tape casting, tape calendaring and screen printing, which are suitable for manufacturing samples in industry with the cheapest process by co-sintered together ways.

A Methodology for Assessing Fuel Cell Performance Under a Wide Range of Operational Conditions: Results for Single Cells

2006 ◽  
Vol 3 (3) ◽  
pp. 226-233 ◽  
Author(s):  
Andrea Baratella ◽  
Roberto Bove ◽  
Piero Lunghi
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Single Cells ◽  
Cell Performance ◽  
Effective Parameters ◽  
Test Procedures ◽  
Operational Conditions ◽  
Fuel Cell Performance ◽  
Wide Range ◽  
The University

Testing the performance of fuel cells is an important key for verifying technology improvements and for demonstrating their potential. However, due to the novelty of this technology, there is not a standardized procedure for testing fuel cell performance. In order to fully investigate fuel cell performance, the behavior must be known under a wide range of operational conditions. Furthermore, in order to compare results coming from different test teams, a set of procedures and parameters to evaluate single cell performance should be defined. The research group of the Fuel Cell Laboratory of the University of Perugia is conducting performance tests on single cells, focusing on defining test procedures to find effective parameters to be used to compare tests performed by different teams. This work demonstrates how the testing parameters developed by the team allow one to perform advanced control on test procedures, to understand test results, and to compare them with tests carried out under different operational conditions. The entire analysis is easily conducted by using a single parameter variation hyperspace approach. The experimental results obtained on single fuel cells are reported.

Preparation and Performance Testing of Tubular Cathode Support for Direct Ethanol Fuel Cell

2011 ◽  
Vol 415-417 ◽  
pp. 2345-2348
Author(s):  
Yang Zhang ◽  
Dong Tang ◽  
Rui Xue Duan ◽  
Hong Jun Ni
Keyword(s):  
Fuel Cell ◽  
Bending Strength ◽  
Raw Materials ◽  
Performance Testing ◽  
Volume Resistivity ◽  
Ethanol Fuel ◽  
Direct Ethanol Fuel Cell ◽  
Performance Requirements ◽  
And Performance ◽  
Gelcasting Process

A new tubular cathode support for Direct Ethanol Fuel Cell (DEFC) was prepared by the gelcasting process using mesocarbon microbead(MCMB) and graphite as the main raw materials. The effects of different graphite doping ratios on tensile strength, bending strength, crushing strength, volume resistivity and shrinkage rate for the prepared tubular cathode support were studied by experimental test. The result showed that the prepared tubular cathode support had very good comprehensive performance. The tubular cathode support with 10% graphite exhibits the best performance such as bending strength 25MPa and resistivity30µΩ•m, and it satisfied the DEFC cathode working conditions and performance requirements.

Hybrid vehicular fuel cell/battery powertrain test bench: design, construction, and performance testing

2016 ◽  
Vol 39 (9) ◽  
pp. 1431-1440 ◽  
Author(s):  
Mohammad Salah ◽  
Mohammed Abu Mallouh ◽  
Mohamed Youssef ◽  
Eman Abdelhafez ◽  
Mohammed Hamdan ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Test Bench ◽  
Performance Testing ◽  
And Performance ◽  
Design Construction

Characterizing Performance of a PEM Fuel Cell for a CMET Balloon

2011 ◽  
Author(s):  
Denise A. McKahn ◽  
Whitney McMackin
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Mass Density ◽  
Pem Fuel Cell ◽  
Pem Fuel Cells ◽  
Cell Polarization ◽  
Operating Conditions ◽  
Design Parameters ◽  
Design System ◽  
Power Densities

We present the design of a multi-cell, low temperature PEM fuel cell for controlled meteorological balloons. Critical system design parameters that distinguish this application are the lack of reactant humidification and cooling due to the low power production, high required power mass-density and relatively short flight durations. The cell is supplied with a pressure regulated and dead ended anode, and flow controlled cathode at variable air stoichiometry. The cell is not heated and allowed to operate with unregulated temperature. Our prototype cell was capable of achieving power densities of 43 mW/cm2/cell or 5.4 mW/g. The cell polarization performance of large format PEM fuel cell stacks is an order of magnitude greater than for miniature PEM fuel cells. These performance discrepancies are a result of cell design, system architecture, and reactant and thermal management, indicating that there are significant gains to be made in these domains. We then present design modifications intended to enable the miniature PEM fuel cell to achieve power densities of 13 mW/g, indicating that additional performance gains must be made with improvements in operating conditions targeting achievable power densities of standard PEM fuel cells.

MODELING OF PEM FUEL CELLS WITH FINITE-THICKNESS CATALYSTS

2009 ◽  
Vol 23 (03) ◽  
pp. 537-540 ◽  
Author(s):  
JIANG HUI YIN ◽  
JUN CAO
Keyword(s):  
Fuel Cells ◽  
Fuel Cell ◽  
Performance Optimization ◽  
Proton Exchange Membrane ◽  
Cell Model ◽  
Finite Thickness ◽  
Pem Fuel Cells ◽  
Proton Exchange ◽  
And Performance ◽  
Exchange Membrane

A general proton exchange membrane fuel cell model including two finite-thickness catalysts is developed in this study, allowing for an in-depth understanding of the effects of the two key electrochemical reactions taking place in the two catalysts. The model is used to predict the performances of fuel cells employing two different flow channel designs, providing insights for fuel cell design and performance optimization.

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