Top > Search of International Patents > Proton conductor, method for manufacturing proton conductor, and fuel cell

Proton conductor, method for manufacturing proton conductor, and fuel cell

Foreign code F140007840
File No. 3651
Posted date Feb 19, 2014
Country United States of America
Application number 201313860658
Gazette No. 20140011103
Gazette No. 9178239
Date of filing Apr 11, 2013
Gazette Date Jan 9, 2014
Gazette Date Nov 3, 2015
Priority data
  • P2012-093175 (Apr 16, 2012) JP
  • P2012-250557 (Nov 14, 2012) JP
  • P2013-039574 (Feb 28, 2013) JP
Title Proton conductor, method for manufacturing proton conductor, and fuel cell
Abstract (US9178239)
A proton conductor includes a metal ion, an oxoanion, and a molecule capable of undergoing protonation or deprotonation, in which at least one of the oxoanion and the molecule capable of undergoing protonation or deprotonation coordinates to the metal ion to form a coordination polymer.
The oxoanion is preferably a monomer.
The oxoanion is exemplified by at least one selected from the group consisting of phosphate ion, hydrogenphosphate ion, and dihydrogenphosphate ion.
The molecule capable of undergoing protonation or deprotonation is exemplified by at least one selected from the group consisting of imidazole, triazole, benzimidazole, benzotriazole, and derivatives thereof.
Scope of claims [claim1]
1. A proton conductor comprising: a coordination polymer that is provided as a crystal structure having defined lattice parameters, the crystal structure having stoichiometrically: a plurality of metal ions;
a plurality of oxoanions; and
a plurality of molecules capable of undergoing protonation or deprotonation,
the coordination polymer including a plurality of coordination entities that are repeatedly coordinated to bond the coordination entities with one another,
wherein each coordination entity of the plurality of coordination entities is either a first coordinate entity or a second coordination entity,
the first coordination entity being one metal ion of the plurality of metal ions coordinated with either (i) at least one oxoanion of the plurality of oxoanions or (ii) at least one molecule capable of undergoing protonation or deprotonation of the plurality of molecules capable of undergoing protonation ro deprotonation, and
the second coordination entity being the metal ion coordinated with each of (i) at least one oxoanion of the plurality of oxoanions and (ii) at least one molecule capable of undergoing protonation or deprotonation of the plurality of molecules capable of undergoing protonation or deprotonation.
[claim2]
2. The proton conductor according to claim 1, wherein the plurality of oxoanions are monomers.
[claim3]
3. The proton conductor according to claim 1, wherein the plurality of oxoanions are at least one selected from the group consisting of phosphate ion, hydrogenphosphate ion, and dihydrogenphosphate ion.
[claim4]
4. The proton conductor according to claim 1, wherein the plurality of molecules capable of undergoing protonation or deprotonation are at least one selected from the group consisting of imidazole, triazole, benzimidazole, benzotriazole, and derivatives of them.
[claim5]
5. The proton conductor according to claim 1, wherein the plurality of molecules capable of undergoing protonation or deprotonation are at least one selected from the group consisting of primary amine represented by General Formula R -- NH2; secondary amine represented by General Formula R1 (R2) -- NH; tertiary amine represented by General Formula R1 (R2)(R3) -- N; linearly-catenated carbon diamine; saturated cyclic amine; and saturated cyclic diamine,
wherein R, R1, R2, and R3 are each independently any of alkyl group, aryl group, alicyclic hydrocarbon group, and heterocyclic group.
[claim6]
6. The proton conductor according to claim 1, wherein the plurality of metal ions are at least one selected from the group consisting of cobalt ion, copper ion, zinc ion, and gallium ion.
[claim7]
7. The proton conductor according to claim 1, further comprising: an additive that is at least one selected from the group consisting of a metal oxide, an organic polymer, and an alkali metal ion.
[claim8]
8. The proton conductor according to claim 7, wherein the metal oxide is at least one selected from the group consisting of SiO2, TiO2, Al2O3, WO3, MoO3, ZrO2, and V2O5.
[claim9]
9. The proton conductor according to claim 7, wherein the organic polymer includes an acidic functional group.
[claim10]
10. The proton conductor according to claim 9, wherein the acidic functional group is any one of carboxyl group, sulfonic acid group, and phosphonic acid group.
[claim11]
11. The proton conductor according to claim 7, wherein the alkali metal ion is at least one metal ion selected from the group consisting of Li, Na, K, Rb, and Cs ions.
[claim12]
12. A method for manufacturing the proton conductor according to claim 1, wherein the plurality of metal ions, the plurality of oxoanions, and the plurality of molecules capable of undergoing protonation or deprotonation are mixed at a temperature of 200 deg. C. or lower.
[claim13]
13. A method for manufacturing the proton conductor according to claim 7, wherein the plurality of metal ions, the plurality of oxoanions, and the plurality of molecules capable of undergoing protonation or deprotonation, and the additive are mixed at a temperature of 200 deg. C. or lower.
[claim14]
14. A fuel cell comprising an electrolyte including the proton conductor according to claim 1.
  • Inventor, and Inventor/Applicant
  • ITAKURA TOMOYA
  • ITO MIHO
  • KITAGAWA SUSUMU
  • HORIKE SATOSHI
  • UMEYAMA DAIKI
  • INUKAI MUNEHIRO
  • DENSO
  • KYOTO UNIVERSITY
IPC(International Patent Classification)
Please contact us by e-mail or facsimile if you have any interests on this patent. Thanks.

PAGE TOP

close
close
close
close
close
close