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Composition of a nickelate composite cathode for a fuel cell

Patent ·
OSTI ID:1492020
; ; ;

In some embodiments, a solid oxide fuel cell comprising an anode, an electrolyte, cathode barrier layer, a nickelate composite cathode separated from the electrolyte by the cathode barrier layer, and a cathode current collector layer is provided. The nickelate composite cathode includes a nickelate compound and second oxide material, which may be an ion conductor. The composite may further comprise a third oxide material. The composite may have the general formula (LnuM1vM2s)n+1(Ni1-tNt)nO3n+1-A1-xBxOy--C.wDzCe(1-w-z)O2-δ, wherein A and B may be rare earth metals excluding ceria.

Research Organization:
LG FUEL CELL SYSTEMS INC., North Canton, OH (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FE0000303; FE0012077
Assignee:
LG FUEL CELL SYSTEMS INC. (North Canton, OH)
Patent Number(s):
10,115,973
Application Number:
15/175,913
OSTI ID:
1492020
Country of Publication:
United States
Language:
English

References (10)

Crystal Structure, Diffusion Path, and Oxygen Permeability of a Pr2NiO4-Based Mixed Conductor (Pr0.9La0.1)2(Ni0.74Cu0.21Ga0.05)O4+δ
  • Yashima, Masatomo; Sirikanda, Nuansaeng; Ishihara, Tatsumi
  • Journal of the American Chemical Society, Vol. 132, Issue 7, p. 2385-2392 https://doi.org/10.1021/ja909820h
journal February 2010
High performance praseodymium nickelate oxide cathode for low temperature solid oxide fuel cell journal February 2011
LNF SOFC cathodes with active layer using Pr6O11 or Pr-doped CeO2 journal November 2013
Surface-limited oxygen transport and electrode properties of La2Ni0.8Cu0.2O4+δ journal January 2004
Mechanism of oxygen transfer in layered lanthanide nickelates Ln2 − x NiO4 + δ (Ln = La, Pr) and their nanocomposites with Ce0.9Gd0.1O2 − δ and Y2(Ti0.8Zr0.2)1.6Mn0.4O7 − δ solid electrolytes journal July 2013
Ionic transport in oxygen-hyperstoichiometric phases with K2NiF4-type structure journal July 2001
In situ compatibility studies of lanthanum nickelate with a ceria-based electrolyte for SOFC composite cathodes journal January 2012
Oxygen ion transport in La2NiO4‐based ceramics
  • Kharton, Vladislav V.; Viskup, Alexandre P.; Naumovich, Eugene N.
  • Journal of Materials Chemistry, Vol. 9, Issue 10, p. 2623-2629 https://doi.org/10.1039/a903276b
journal January 1999
Oxygen mobility and surface reactivity of PrNi1−xCoxO3+δ–Ce0.9Y0.1O2−δ cathode nanocomposites journal September 2014
Oxygen ion conductors journal March 2003

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