High performance metal-supported solid oxide fuel cells with infiltrated electrodes

doi:10.1016/j.jpowsour.2018.11.004

Title: High performance metal-supported solid oxide fuel cells with infiltrated electrodes

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Abstract

High power density is required to commercialize solid oxide fuel cells for vehicular applications. High performance of metal supported solid oxide fuel cells (MS-SOFCs) is achieved via catalyst composition, electrode structure, and processing optimization. The full cell configuration consists of a dense ceramic electrolyte and porous ceramic backbones (electrodes) sandwiched between porous stainless steel metal supports. The conventional YSZ electrolyte and backbones are replaced with more conductive and thinner 10Sc1CeSZ ceramics. MS-SOFCs are co-sintered in a single step and subsequently infiltrated with nanocatalysts. Five categories of cathode catalysts are screened in full cells, including: perovskites, nickelates, praseodymium oxide, binary layered composites, and ternary layered composites. Various anode compositions are also tested. The conventional LSM cathode catalyst is replaced with more active Pr ₆O ₁₁ and the Ni content of the SDC-Ni anode is increased. The resulting cells achieve a peak power of 1.56, 2.0, and 2.85 W cm ^-2 at 700, 750, and 800 °C, respectively, with 3%H ₂O/H ₂ as fuel and cathode exposed to air. Multiple cells show reproducible performance (P _max = 1.50 ± 0.06 W cm ^-2) and OCV (1.10 ± 0.02 V). Finally, the performance is further increased with cathode exposed to pure oxygen (2.0more » W cm ^-2 at 700 °C).« less

Authors:

Dogdibegovic, Emir ^[1];

^[1]; Lau, Grace Y. ^[1];

^[1]

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Storage and Distributed Resources Division

Publication Date:: Sat Nov 10 00:00:00 EST 2018

Research Org.:: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Advanced Research Projects Agency - Energy (ARPA-E); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

OSTI Identifier:: 1483275

Grant/Contract Number:: AC02-05CH11231

Resource Type:: Journal Article: Accepted Manuscript

Journal Name:: Journal of Power Sources

Additional Journal Information:: Journal Volume: 410-411; Journal ID: ISSN 0378-7753

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 25 ENERGY STORAGE; solid oxide fuel cell; metal-support; infiltration

Citation Formats


                    Dogdibegovic, Emir, Wang, Ruofan, Lau, Grace Y., and Tucker, M. C. High performance metal-supported solid oxide fuel cells with infiltrated electrodes.  United States: N. p., 2018. 
        Web.  doi:10.1016/j.jpowsour.2018.11.004.

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                    Dogdibegovic, Emir, Wang, Ruofan, Lau, Grace Y., & Tucker, M. C. High performance metal-supported solid oxide fuel cells with infiltrated electrodes.  United States.  doi:10.1016/j.jpowsour.2018.11.004.

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                    Dogdibegovic, Emir, Wang, Ruofan, Lau, Grace Y., and Tucker, M. C. Sat .  
        "High performance metal-supported solid oxide fuel cells with infiltrated electrodes".  United States.  
        doi:10.1016/j.jpowsour.2018.11.004.

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@article{osti_1483275,

  title        = {High performance metal-supported solid oxide fuel cells with infiltrated electrodes},

  author       = {Dogdibegovic, Emir and Wang, Ruofan and Lau, Grace Y. and Tucker, M. C.},

  abstractNote = {High power density is required to commercialize solid oxide fuel cells for vehicular applications. High performance of metal supported solid oxide fuel cells (MS-SOFCs) is achieved via catalyst composition, electrode structure, and processing optimization. The full cell configuration consists of a dense ceramic electrolyte and porous ceramic backbones (electrodes) sandwiched between porous stainless steel metal supports. The conventional YSZ electrolyte and backbones are replaced with more conductive and thinner 10Sc1CeSZ ceramics. MS-SOFCs are co-sintered in a single step and subsequently infiltrated with nanocatalysts. Five categories of cathode catalysts are screened in full cells, including: perovskites, nickelates, praseodymium oxide, binary layered composites, and ternary layered composites. Various anode compositions are also tested. The conventional LSM cathode catalyst is replaced with more active Pr6O11 and the Ni content of the SDC-Ni anode is increased. The resulting cells achieve a peak power of 1.56, 2.0, and 2.85 W cm-2 at 700, 750, and 800 °C, respectively, with 3%H2O/H2 as fuel and cathode exposed to air. Multiple cells show reproducible performance (Pmax = 1.50 ± 0.06 W cm-2) and OCV (1.10 ± 0.02 V). Finally, the performance is further increased with cathode exposed to pure oxygen (2.0 W cm-2 at 700 °C).},

  doi          = {10.1016/j.jpowsour.2018.11.004},

  journal      = {Journal of Power Sources},

  number       = ,

  volume       = 410-411,

  place        = {United States},

  year         = {Sat Nov 10 00:00:00 EST 2018},

  month        = {Sat Nov 10 00:00:00 EST 2018}

}

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