A fuel cell system component ink includes a fuel cell system component powder, a solvent including propylene carbonate (PC), and a binder including polypropylene carbonate (PPC).

A fuel cell system component ink includes a fuel cell system component powder, a solvent including propylene carbonate (PC), and a binder including polypropylene carbonate (PPC).

A single fuel cell according to the present disclosure includes a power generation section, a power non-generation section which does not include the power generation section, and an oxygen-ion-insulating gas seal film arranged so as to cover the surface of the power non-generation section, and the gas seal film is configured by a structure formed by firing a material containing MTiO.sub.3 (M: alkaline earth metal element) and metal oxide. The structure may include a first structure and a second structure which are different in composition, the first structure may include components derived from MTiO.sub.3 in larger amounts than the second structure, the second structure may include a metal element contained in the metal oxide in a larger amount than the first structure, and the area ratio of the second structure in the structure may be not less than 1% and not more than 50%.

A cell including: a body having a first end portion and a second end portion; a first electrode layer electrically connected to the body; a solid electrolyte layer located on the first electrode layer; and a second electrode layer located on the solid electrolyte layer, wherein the body includes a flared gas-flow passage passing through the body from the first end portion to second end portion; and diameters of opposing end portions of the flared gas-flow passage are greater than a diameter of the flared gas-flow passage at a central portion between the opposing end portions.

A fuel cell system component ink includes a fuel cell system component powder, a solvent including propylene carbonate (PC), and a binder including polypropylene carbonate (PPC).

A fuel cell system component ink includes a fuel cell system component powder, a solvent including propylene carbonate (PC), and a binder including polypropylene carbonate (PPC).

A fuel cell bipolar plate (BPP) includes a metal substrate having a bulk portion and a surface portion comprising an anticorrosive, conductive material having oxygen vacancies and a formula (I):
MgTi.sub.2O.sub.5-δ  (I),
where .sub.δ is any number between 0 and 3 optionally including a fractional part denoting the oxygen vacancies, the material having an electronic conductivity of about 2-10 S/m at room temperature in an ambient environment.

A fuel cell bipolar plate (BPP) includes a metal substrate having a bulk portion and a surface portion comprising an anticorrosive, conductive material having oxygen vacancies and a formula (I):
MgTi.sub.2O.sub.5-δ  (I),
where .sub.δ is any number between 0 and 3 optionally including a fractional part denoting the oxygen vacancies, the material having an electronic conductivity of about 2-10 S/m at room temperature in an ambient environment.

A fuel cell column includes a plurality of fuel cell stacks, at least one fuel manifold configured to provide fuel to the plurality of fuel cell stacks, and at least one heat sink insert located between adjacent fuel cells of the plurality of fuel cell stacks. A fuel cell column including at least one heat sink insert located between adjacent fuel cell stacks of the column may reduce the peak temperatures of the fuel cell stacks adjacent to the heat sink inserts and may provide a smaller temperature distribution within the fuel cell stacks and within the column as a whole.

A method of making an interconnect for an electrochemical cell stack includes providing the interconnect, and creep flattening the interconnect prior to placing the interconnect into the electrochemical cell stack.