Power generation apparatus

Patent metadata

Field	Value
Publication number	US-9455464-B2
Application number	US-201615092260-A
Country	US
Kind code	B2
Filing date	Apr 6, 2016
Priority date	Dec 1, 2010
Publication date	Sep 27, 2016
Grant date	Sep 27, 2016

Abstract

Provided are a gas decomposition component, a method for producing a gas decomposition component, and a power generation apparatus. A gas decomposition component 10 includes a cylindrical-body MEA 7 including a first electrode 2 disposed on an inner-surface side, a second electrode 5 disposed on an outer-surface side, and a solid electrolyte 1 sandwiched between the first electrode and the second electrode; and a porous metal body 11 s inserted on the inner-surface side of the cylindrical-body MEA and electrically connected to the first electrode, wherein the gas decomposition component further includes a porous conductive-paste-coated layer 11 g formed on an inner circumferential surface of the first electrode, and a metal mesh sheet 11 a disposed on an inner circumferential side of the conductive-paste-coated layer, and an electrical connection between the first electrode and the porous metal body is established through the conductive-paste-coated layer and the metal mesh sheet.

First claim

The invention claimed is:

1. A power generation apparatus including a gas decomposition component, the gas decomposition component comprising:
a cylindrical-body membrane electrode assembly (MEA) including a solid electrolyte, a first electrode disposed on an inner-surface side of the solid electrolyte, and a second electrode disposed on an outer-surface side of the solid electrolyte;
a first porous conductive-paste-coated layer formed on an inner circumferential surface of the first electrode, wherein the first porous conductive-paste-coated layer has a thickness in the range of 5 μm or more and 300 μm or less and a porosity of the first porous conductive-paste-coated layer is in the range of 20% or more and 80% or less;
a metal mesh sheet disposed on an inner circumferential side of the first conductive-paste-coated layer;
a porous metal body inserted on the inner-surface side of the metal mesh sheet and electrically connected to the first electrode;
an electrical connection between the first electrode and the porous metal body that is established through the first conductive-paste-coated layer and the metal mesh sheet, and
a second porous conductive-paste-coated layer is formed between an outer circumferential surface of the porous metal body and an inner circumferential surface of the metal mesh sheet,
wherein a first gaseous fluid is introduced into the first electrode, a second gaseous fluid is introduced into the second electrode, and electric power is output from the first electrode and the second electrode, and
a power-supply part that supplies the electric power to another electric apparatus.

2. The power generation apparatus according to claim 1 , wherein the metal mesh sheet is formed so as to have a cylindrical shape and is disposed so as to cover an entire surface of the first electrode.

3. The power generation apparatus according to claim 1 , wherein the porous conductive-paste-coated layer is formed from a paste containing silver particles.

4. The power generation apparatus component according to claim 1 , wherein the porous conductive-paste-coated layer is formed on an entire surface of the first electrode.

5. The power generation apparatus according to claim 1 , wherein the porous conductive-paste-coated layer is formed so as to have a band pattern or a grid pattern.

6. The power generation apparatus according to claim 1 , wherein the first electrode and/or the second electrode is a sinter containing an ion-conductive ceramic and metal chain particles mainly containing nickel (Ni).

7. The power generation apparatus according to claim 1 , wherein the solid electrolyte has oxygen-ion conductivity or proton conductivity.

8. The power generation apparatus according to claim 1 , further comprising a heater, wherein the electric power is supplied to the heater.

9. The power generation apparatus according to claim 6 , wherein the metal chain particles have an average diameter in the range of 5 nm or more and 500 nm or less.

10. The power generation apparatus according to claim 6 , wherein the metal chain particles have an average length in the range of 0.5 μm or more and 1000 μm or less.

Assignees

• Sumitomo Electric Industries

Inventors

• Hiraiwa Chihiro
• Majima Masatoshi
• Kuwabara Tetsuya
• Awazu Tomoyuki
• Mizuhara Naho
• Ueda Toshio
• Doi Hideyuki
• Kuramoto Toshiyuki

Classifications

• Y02E60/50

  Fuel cells · CPC title

• B01D53/32 Primary

  by electrical effects other than those provided for in group B01D61/00 · CPC title

• H01M8/1006

  Corrugated, curved or wave-shaped MEA · CPC title

• H01M8/1007 Primary

  with both reactants being gaseous or vaporised (H01M8/12 takes precedence) · CPC title

• H01M8/004

  Cylindrical, tubular or wound · CPC title