Hybrid electrochemical cell

Patent metadata

Field	Value
Publication number	US-2016130709-A1
Application number	US-201514677189-A
Country	US
Kind code	A1
Filing date	Apr 2, 2015
Priority date	Nov 7, 2014
Publication date	May 12, 2016
Grant date	—

Abstract

A hybrid electrochemical cell using reversible operation of a solid oxide cell includes: i) solid oxide cell generating power; ii) first storage container storing hydrogen and carbon monoxide discharged from the solid oxide cell supplying the hydrogen and carbon monoxide to the solid oxide cell; iii) second storage container storing steam and carbon dioxide discharged from the solid oxide cell supplying the steam and carbon dioxide to the solid oxide cell; iv) first connection pipe connecting the first storage container, the second storage container, and the solid oxide cell; v) second connection pipe connecting the first storage container, the second storage container, and the solid oxide cell; vi) discharging terminal connected to the solid oxide cell; vii) charging terminal connected to the solid oxide cell spaced apart from the discharging terminal, having the solid oxide cell disposed in between; and viii) mode converter connected to the solid oxide cell.

First claim

What is claimed is:

1 . A hybrid electrochemical cell, comprising:
a solid oxide cell applied to generate electrical power; a first storage container storing hydrogen and carbon monoxide discharged from the solid oxide cell and supplying the hydrogen and carbon monoxide to the solid oxide cell; a second storage container storing steam and carbon dioxide discharged from the solid oxide cell and supplying the steam and carbon dioxide to the solid oxide cell; a first connection pipe connecting the first storage container and the second storage container and the solid oxide cell; a second connection pipe connecting the first storage container and the second storage container and the solid oxide cell; a discharging terminal connected to the solid oxide cell; a charging terminal connected to the solid oxide cell and spaced apart from the discharging terminal, having the solid oxide cell disposed in between; and a mode converter connected to the solid oxide cell, extended along an arrangement direction of the solid oxide cell and connected to the discharging terminal and the charging terminal, moving one of the discharging terminal and the charging terminal to be electrically connected to the outside.

2 . The hybrid electrochemical cell of claim 1 , further comprising:
a casing accommodating the solid oxide cell, the first storage container, and the second storage container, wherein the discharging terminal, the charging terminal, and the mode converter each are partially exposed to the outside through openings which are formed in the casing.

3 . The hybrid electrochemical cell of claim 2 , wherein the discharging terminal includes:
a first discharging terminal unit extending in a direction intersecting the direction in which the mode converter extends to be connected to the mode converter; and a second discharging terminal unit connected to the first discharging terminal unit, extending in a direction parallel with the direction in which the mode converter extends, and entering and exiting the casing through the openings.

4 . The hybrid electrochemical cell of claim 2 , wherein the charging terminal includes:
a first charging terminal unit extending in a direction intersecting the direction in which the mode converter extends to be connected to the mode converter; and a second charging terminal unit connected to the first charging terminal unit, extending in a direction parallel with the direction in which the mode converter extends, and entering and exiting the casing through the openings.

5 . The hybrid electrochemical cell of claim 2 , further comprising:
a first valve installed at the first connection pipe to open and close the first connection pipe; a second valve installed at the second connection pipe to open and close the second connection pipe; and a first switch and a second switch positioned at both ends of the mode converter, respectively, wherein the mode converter is electrically connected to any one of the first switch and the second switch depending on an operation of the mode converter, the first switch is electrically connected to the first valve, and the second switch is electrically connected to the second valve.

6 . The hybrid electrochemical cell of claim 5 , wherein the mode converter
includes a first mode converter which is positioned between the first switch and the second switch to be connected to any one of the first switch and the second switch and extends in a direction in which the charging terminal and the discharging terminal are connected to each other; and a second mode converter extending in a direction intersecting a direction in which the first mode converter extends to be exposed to the outside through any one of the openings.

7 . The hybrid electrochemical cell of claim 1 , wherein the solid oxide cell includes:
a fuel electrode including a metal catalyst and perovskite; an electrolyte contacting the fuel electrode and including yttria stabilized zirconia; and an air electrode contacting the electrolyte and including the perovskite.

Assignees

• Korea Inst Sci & Tech

Inventors

• Hong Jongsup
• Kim Hyoungchul
• Ahn Kiyong
• Yoon Kyung Joong
• Son Ji-Won
• Lee Jong Ho
• Je Hae June
• Kim Byung Kook

Classifications

• H01M2008/1293

  Fuel cells with solid oxide electrolytes · CPC title

• H01M8/0656 Primary

  by electrochemical means (H01M8/065 takes precedence) · CPC title

• C25B9/08 Primary

  Chemistry & Metallurgy · mapped topic

• H01M2300/0077

  based on zirconium oxide · CPC title

• H01M8/1253

  the electrolyte containing zirconium oxide · CPC title