Engineering of the electrode structure of thin film solid oxide fuel cells

Park, Joonho; Lee, Yeageun; Chang, Ikwhang; Lee, Won Young; Won, Suk

doi:10.1016/j.tsf.2014.11.018

Cited by 45 publications

(15 citation statements)

References 27 publications

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“…1). This performance reduction may be due to the impoverished mass transport and shortened TPB length caused by excessively thick BEC, which is parallel to previous research discussing the effects of the thickness and microstructure of BECs [14]. …”

Section: Resultssupporting

confidence: 57%

Surface engineering of nanoporous substrate for solid oxide fuel cells with atomic layer-deposited electrolyte

Ji¹,

Tanveer²,

Yu³

et al. 2015

Beilstein J. Nanotechnol.

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SummarySolid oxide fuel cells with atomic layer-deposited thin film electrolytes supported on anodic aluminum oxide (AAO) are electrochemically characterized with varying thickness of bottom electrode catalyst (BEC); BECs which are 0.5 and 4 times thicker than the size of AAO pores are tested. The thicker BEC ensures far more active mass transport on the BEC side and resultantly the thicker BEC cell generates ≈11 times higher peak power density than the thinner BEC cell at 500 °C.

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Section: Resultssupporting

confidence: 57%

Surface engineering of nanoporous substrate for solid oxide fuel cells with atomic layer-deposited electrolyte

Ji¹,

Tanveer²,

Yu³

et al. 2015

Beilstein J. Nanotechnol.

Self Cite

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show abstract

“…Owing to the prominent voltage drop at current densities above 100 mA/cm 2 , the peak power density (65.3 mW/cm 2 ) of the Cell-C was somewhat smaller than that of the Cell-B ( Figure 1B). This performance reduction may be due to the impoverished mass transport and shortened TPB length caused by excessively thick BEC, which is parallel to previous research discussing the effects of the thickness and microstructure of BECs [14].…”

Section: Cell Performance and Microstructural Analysissupporting

confidence: 70%

Surface engineering of nanoporous substrate for solid oxide fuel cells with atomic layer-deposited electrolyte

Ji¹,

Tanveer²,

Yu³

et al. 2016

Nano Online

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Solid oxide fuel cells with atomic layer-deposited thin film electrolytes supported on anodic aluminum oxide (AAO) are electrochemically characterized with varying thickness of bottom electrode catalyst (BEC); BECs which are 0.5 and 4 times thicker than the size of AAO pores are tested. The thicker BEC ensures far more active mass transport on the BEC side and resultantly the thicker BEC cell generates ≈11 times higher peak power density than the thinner BEC cell at 500 °C.

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“…One of the rules to classify the types of fuel cell technologies are depends on the consumption of the electrolyte due to the important role of this cell component in the overall configuration of the system and the principle working to complete the energy production .10,48 For example, the fuel cells technologies operated in lower temperature likes polymer electrolyte membrane fuel cells, alkaline fuel cells, and direct alcohol fuel cells (methanol and ethanol) are applied the solid polymer electrolyte membranes commonly such as poly (vinyl alcohol), polyamide, and etc. [52][53][54] Typically, the zirconia-based electrolyte is applied in SOFC application due to the good mechanical properties and high ionic conductivity at high operating temperature (800-1000°C) with maintaining the stability and durability of the cell performance. 49,50 Meanwhile, the high-temperature fuel cells technologies like SOFCs, the harder and dense electrolyte is crucial and required based on ceramic material such as the zirconia-based electrolyte.…”

Section: Electrolytementioning

confidence: 99%

“…Hence, the performance of electrolyte is related to fabricating technology of the powders and particles size of material, and sintering density. [52][53][54] Typically, the zirconia-based electrolyte is applied in SOFC application due to the good mechanical properties and high ionic conductivity at high operating temperature (800-1000°C) with maintaining the stability and durability of the cell performance. 55,56 The YSZ electrolyte is the most common solid electrolyte used in SOFC application due to high oxygen ionic conductivity properties, Bagchi et al 57 examined the ionic conductivity of YSZ electrolyte reaching the maximum 0.107 S cm -1 at 1000°C with the sintering temperature at 1200°C via the simple sol-gel method.…”

Section: Electrolytementioning

confidence: 99%

A review of solid oxide fuel cell component fabrication methods toward lowering temperature

et al. 2019

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The solid oxide fuel cells (SOFCs) emerge as an alternative power generation system for high-scale stationary application and power plant station. The SOFC consumption leads to the high-efficiency energy production that forms variety of fuels up to 60% energy conversion; the operation system does not involve the burning process and minimizes the air pollution. Also, the aptitude to provide the cogenerative energy production from the heat waste during the operation process serve SOFC as an attractive green technology and environmentally friendly. However, the SOFC consumption remains limited for transportation and portable applications because the simple design of power source compartment is still the major hurdle in each SOFC component development and commercialization. Therefore, the appropriate fabrication method of each SOFC component is important to achieve the reliability of the SOFC application for the small-scale power generation design. In this paper, an overview of the design types and SOFC components and properties following electrode, electrolyte, interconnect and sealant are discussed and summarized. As the thirdgeneration fuel cells, which entice the commercialization stage, this paper concentrates more on the fabrication method of each SOFC components that were explored including the working principle, advantage, disadvantage and several previous works on each fabrication method, which are described to finding the appropriate fabrication method toward lowering the operating temperature and develop the simple design of SOFC power sources system for the transportation and portable application. The targeted market power production of SOFC system for transportation application is about 5 kW and 250 W for portable application.

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Engineering of the electrode structure of thin film solid oxide fuel cells

Cited by 45 publications

References 27 publications

Surface engineering of nanoporous substrate for solid oxide fuel cells with atomic layer-deposited electrolyte

Surface engineering of nanoporous substrate for solid oxide fuel cells with atomic layer-deposited electrolyte

Surface engineering of nanoporous substrate for solid oxide fuel cells with atomic layer-deposited electrolyte

A review of solid oxide fuel cell component fabrication methods toward lowering temperature

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