초록 ▼

The present invention relates to solid materials for use as solid electrolytes for a fuel cell. Specifically, the invention relates to a solid O2-conducting material for use as an electrolyte for a fuel cell, comprising: a monocrystal or polycrystal structure of the formula: A1-xBxZ, wherein A is in

The present invention relates to solid materials for use as solid electrolytes for a fuel cell. Specifically, the invention relates to a solid O2-conducting material for use as an electrolyte for a fuel cell, comprising: a monocrystal or polycrystal structure of the formula: A1-xBxZ, wherein A is independently selected from lanthanum, cerium, neodymium, praseodymium, scandium or mixtures thereof; B is independently selected from strontium, calcium, barium or magnesium, and x is between about 0 and 0.9999, Z is selected from the group consisting of F3-x and OcFd where F is fluorine, O is oxygen, x is between about 0 and 0.9999 and 2c+d=3-x, wherein c is between 0.0001 and 1.5 and d is between 0.0001 and less than or equal to 3, with the proviso when A is lanthanum, Z is F3-x and x is 0, the solid material is only a monocrystal. In another aspect the present invention relates to a composite fuel cell of thin lanthanum strontium fluoride having a laminate (composite)-type structure. In another aspect, the solid electrolyte for a fuel cell is a monocrystal or polycrystal structure of PbeSnfFg, where Pb is lead and Sn is tin. The invention also includes the use of the solid electrolyte fuel cells disclosed to generate electricity.

대표청구항 ▼

The use of a solid O2-(oxide ion) conducting material as an electrolyte for a fuel-cell, said material comprising: a monocrystal or polycrystal structure of the formula A1-xBxZ(AA) wherein A is independently selected from lanthanum, cerium, neodymium, scandium or mixtures thereof; B is independently

The use of a solid O2-(oxide ion) conducting material as an electrolyte for a fuel-cell, said material comprising: a monocrystal or polycrystal structure of the formula A1-xBxZ(AA) wherein A is independently selected from lanthanum, cerium, neodymium, scandium or mixtures thereof; B is independently selected from strontium, calcium, barium or magnesium, and x is between 0 and 0.9999, Z is selected from the group consisting of F3-x and OcFd where F is fluorine, O is oxygen, x is between about 0 and 0.9999 and 2c+d=3-x, wherein c is between 0.0001 and 1.5 and d is between 0.001 and less than or equal to 3, wherein the solid material as an electrolyte is a thin layer having one side in contact with an electrode which is in contact with a gaseous fuel for a fuel cell and the other side of the thin solid material for the electrolyte is also in contact with an electrode which is in contact with gaseous oxygen, or air or mixtures thereof.