Oriented apatite type oxide ion conductor and method for producing same

US11374248B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11374248-B2
Application numberUS-201916960711-A
CountryUS
Kind codeB2
Filing dateFeb 14, 2019
Priority dateFeb 14, 2018
Publication dateJun 28, 2022
Grant dateJun 28, 2022

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Abstract

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An oriented apatite-type oxide ion conductor includes a composite oxide expressed as A9.33+x[T6.00−yMy]O26.0+z, where A represents one or two or more elements selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Be, Mg, Ca, Sr, and Ba, T represents an element including Si or Ge or both, and M represents one or two or more elements selected from the group consisting of B, Ge, Zn, Sn, W, and Mo, and where x is from −1.00 to 1.00, y is from 0.40 to less than 1.00, and z is from −3.00 to 2.00.

First claim

Opening claim text (preview).

The invention claimed is: 1. An oriented apatite-type oxide ion conductor comprising a composite oxide expressed as A 9.33+x [T 6.00−y M y ]O 26.0+z , where A represents one or two or more elements selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Be, Mg, Ca, Sr, and Ba, T represents an element including Si or Ge or both, and M represents one or two or more elements selected from the group consisting of B, Ge, Zn, Sn, W, and Mo, and where x is from −1.00 to 1.00, y is from 0.40 to less than 1.00, and z is from −3.00 to 2.00. 2. The oriented apatite-type oxide ion conductor as set forth in claim 1 , which has a degree of orientation of 0.60 or greater as measured according to the Lotgering method. 3. An electrode assembly that has a configuration in which electrodes are stacked on two surfaces of the oriented apatite-type oxide ion conductor as set forth in claim 1 . 4. A method for producing an oriented apatite-type oxide ion conductor, comprising: a step of converting a precursor expressed as A 2.00+x TO 5.00+z , where A represents one or two or more elements selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Be, Mg, Ca, Sr, and Ba, T represents an element including Si or Ge or both, x is from −1.00 to 1.00, and z is from −2.00 to 2.00, into an oriented apatite-type crystal structure by heating the precursor in a gas phase containing an element M, where M represents one or two or more elements selected from the group consisting of B, Ge, Zn, Sn, W, and Mo, and thereby reacting the element M with the precursor; and an annealing step. 5. An electrode assembly that has a configuration in which electrodes are stacked on two surfaces of the oriented apatite-type oxide ion conductor as set forth in claim 2 .

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Classifications

  • H01M8/1246Primary

    the electrolyte consisting of oxides · CPC title

  • Tin oxides, stannates or oxide forming salts thereof, e.g. indium tin oxide [ITO] · CPC title

  • mainly consisting of other non-metallic substances · CPC title

  • Lanthanum oxide or oxide-forming salts thereof · CPC title

  • Barium oxides or oxide-forming salts thereof · CPC title

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What does patent US11374248B2 cover?
An oriented apatite-type oxide ion conductor includes a composite oxide expressed as A9.33+x[T6.00−yMy]O26.0+z, where A represents one or two or more elements selected from the group consisting of La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Be, Mg, Ca, Sr, and Ba, T represents an element including Si or Ge or both, and M represents one or two or more elements selected from the group consisting of B, Ge…
Who is the assignee on this patent?
Mitsui Mining & Smelting Co Ltd
What technology area does this patent fall under?
Primary CPC classification H01M8/1246. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 28 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).