Development of a Silver Based Stable Current Collector for Solid Oxide Fuel Cell Cathodes

2012 ◽  
Vol 1385 ◽  
Author(s):  
Ayhan Sarikaya ◽  
Vladimir Petrovsky ◽  
Fatih Dogan
Keyword(s):  
Fuel Cell ◽  
Low Cost ◽  
Current Collector ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Lanthanum Strontium Manganite ◽  
Current Collectors ◽  
Long Term Stability ◽  
Cell Components ◽  
Porous Microstructure

ABSTRACTLong term stability has been a crucial issue for the future applications of the solid oxide fuel cells (SOFCs). Current collectors for the cathodes have been among the most vulnerable components of the SOFCs due to their operation in oxidizing atmospheres at relatively high temperatures. Ag and Ag based LSM (lanthanum-strontium manganite) composites were studied to develop highly stable and low-cost current collectors compatible with other fuel cell components. In this study, no degradation was observed in the electrical conductivity and the porous microstructure of the Ag-LSM composite current collectors after 600 hours of operation at 800oC in air.

To Achieve the Best Performance Through Optimization of Gas Delivery and Current Collection in Solid Oxide Fuel Cells

2005 ◽  
Vol 3 (2) ◽  
pp. 188-194 ◽  
Author(s):  
P. W. Li ◽  
S. P. Chen ◽  
M. K. Chyu
Keyword(s):  
Fuel Cell ◽  
Contact Resistance ◽  
Solid Oxide Fuel Cell ◽  
Power Density ◽  
Current Collector ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Electrolyte Layer ◽  
Current Collectors ◽  
Current Collection

Aimed at improving the maximum available power density in a planar-type solid oxide fuel cell, an analytical model is proposed in this work to find the optimum size of a current collector that collects the current from a specific active area of the electrode-electrolyte layer. Distributed three-dimensional current collectors in gas delivery field are designated to allow a larger area of the electrode-electrolyte layer to be active for electrochemical reaction compared to conventional designs that gas channels are separated by current collectors. It has been found that the optimal operating temperature of a planar-type solid oxide fuel cell might be around 850°C, if the sizes of the distributed current collectors and their control areas are optimized. Decreasing the size of both the current collector and its control area is advantageous in achieving a higher power density. Studies also show that the optimal sizes of the current collector and the current collection area investigated at 850°C and zero concentration polarization are applicable to situations of different operating temperatures, and different concentration polarizations. The optimization results of the sizes of current collectors and their control areas are relatively sensitive to the contact resistance between the current collectors and the electrodes of the fuel cell. Results of great significance are provided in the analysis, which will help designers to account for the variation of contact resistance in optimization designing of a bipolar plate of fuel cells.

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 high performance ceria-based solid oxide fuel cell operating on underground coal gasification gas

RSC Advances ◽  
2015 ◽  
Vol 5 (106) ◽  
pp. 87477-87483 ◽  
Author(s):  
Jie Xiong ◽  
Chengran Jiao ◽  
Minfang Han ◽  
Wentao Yi ◽  
Jie Ma ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Electrochemical Performance ◽  
Solid Oxide Fuel Cell ◽  
High Performance ◽  
Coal Gasification ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Underground Coal Gasification ◽  
Long Term Stability

A NiO-GDC‖GDC‖Ba0.9Co0.7Fe0.2Nb0.1O3−δ cell fed with UCG gas demonstrated exceptional electrochemical performance and desirable long term stability.

Sintering of NiO/YSZ Anode Layers for Metal-Supported Solid Oxide Fuel Cell

2014 ◽  
Vol 1040 ◽  
pp. 155-160
Author(s):  
Andrey A. Solovyev ◽  
Igor V. Ionov ◽  
Anastasya N. Kovalchuk ◽  
Aleksandr I. Kirdyashkin ◽  
Anatoly Maznoy ◽  
...  
Keyword(s):  
High Temperature ◽  
Fuel Cell ◽  
Porous Metal ◽  
Current Collector ◽  
Inert Atmosphere ◽  
Metal Substrate ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Vacuum Sintering ◽  
Screen Printing Technique

The construction of a metal-supported fuel cell has been recently generating a growing interest among the designers of solid oxide fuel cells. The present work is aimed at solving the problem related to high-temperature sintering of fuel cell NiO/YSZ anode on the porous metal substrate functioning both as a supporting structure and a reliable current collector. Hence, its irreversible oxidation during high-temperature sintering should be avoided. NiO/YSZ layers were applied on porous metal samples by a screen-printing technique and sintered in reducing and inert atmospheres, as well as in vacuum. The obtained layers were studied by means of scanning electron microscopy and X-ray phase analysis. It was shown that a temperature of 1000°С does not ensure a substantial sintering of Ni and YSZ granules in a reducing atmosphere. Under the sintering temperature above 1230°С in an inert atmosphere and vacuum, the nickel oxide dissociation and its massive agglomeration are observed. The conditions of NiO/YSZ layer vacuum sintering were experimentally determined which provide a high-grade sintering of nickel cermet granules without Ni agglomeration, disturbance of homogeneity in the formed anode layer, and the metal substrate oxidation.

Easy sintering of silver doped lanthanum strontium manganite current collector for solid oxide fuel cells

2011 ◽  
Vol 36 (13) ◽  
pp. 7683-7687 ◽  
Author(s):  
Chuan Wang ◽  
Xianshuang Xin ◽  
Yanjie Xu ◽  
Jianyin Chen ◽  
Le Shao ◽  
...  
Keyword(s):  
Fuel Cells ◽  
Solid Oxide Fuel Cells ◽  
Current Collector ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Lanthanum Strontium Manganite ◽  
Lanthanum Strontium

Mn Valence Determination for Lanthanum Strontium Manganite Solid Oxide Fuel Cell Cathodes

2011 ◽  
Vol 158 (10) ◽  
pp. B1276 ◽  
Author(s):  
Shao-Ju Shih ◽  
Reza Sharghi-Moshtaghin ◽  
Mark R. De Guire ◽  
Richard Goettler ◽  
Zhengliang Xing ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Lanthanum Strontium Manganite ◽  
Lanthanum Strontium ◽  
Fuel Cell Cathodes ◽  
Cell Cathodes

ChemInform Abstract: Microstructure-Property Relations of Solid Oxide Fuel Cell Cathodes and Current Collectors.

ChemInform ◽  
2010 ◽  
Vol 27 (26) ◽  
pp. no-no
Author(s):  
K. SASAKI ◽  
J.-P. WURTH ◽  
R. GSCHWEND ◽  
M. GOEDICKEMEIER ◽  
L. J. GAUCKLER
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Current Collectors ◽  
Property Relations ◽  
Fuel Cell Cathodes ◽  
Cell Cathodes

Electrophoretically Coated Wire Meshes as Current Collectors for Solid Oxide Fuel Cell

2019 ◽  
Vol 7 (1) ◽  
pp. 1319-1325 ◽  
Author(s):  
Yoshiteru Itagaki ◽  
Fumiya Matsubara ◽  
Makiko Asamoto ◽  
Hiroyuki Yamaura ◽  
Hidenori Yahiro ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Current Collectors ◽  
Coated Wire ◽  
Wire Meshes

Advances in Low Temperature Coatings for Solid Oxide Fuel Cell Components

2017 ◽  
Vol 78 (1) ◽  
pp. 1897-1901 ◽  
Author(s):  
Neil J. Kidner ◽  
Sergio Ibanez ◽  
Matthew Mark Seabaugh ◽  
Scott Swartz
Keyword(s):  
Fuel Cell ◽  
Low Temperature ◽  
Solid Oxide Fuel Cell ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Cell Components
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