Unlock instant, AI-driven research and patent intelligence for your innovation.

Electrical anode reduction of solid oxide fuel cell

A solid oxide, fuel cell technology, used in solid electrolyte fuel cells, fuel cells, battery electrodes, etc., can solve the problem of expensive reducing gas

Inactive Publication Date: 2014-01-29
TOPSOE FUEL CELL
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The necessary reducing gases are expensive and furthermore need to be removed from the process with subsequent environmental consequences

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Electrical anode reduction of solid oxide fuel cell
  • Electrical anode reduction of solid oxide fuel cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0051] The invention will be more fully understood and further advantages will become apparent when reference is made to the following detailed description of embodiments of the invention in light of the accompanying drawings.

[0052] exist figure 1 , a graph showing the relationship between voltage, current, temperature and time for anode reduction of a solid oxide fuel cell stack according to an embodiment of the present invention. A solid oxide fuel cell stack comprising 25 assembled solid oxide fuel cells was placed in a hot press in an ambient air environment. By increasing the furnace temperature, the stack is heated to about 900°C. The temperature curve is figure 1 The thin line shown in . As can be seen, the temperature starts at room temperature of about 25°C at about 13:00 hours. Although the temperature increased slowly to about 450°C during about 12 hours and then more rapidly to about 900°C over an additional about 2 hours, no significant current was measured...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A solid oxide fuel cell is anode reduced without the use of a reducing gas by applying a voltage to the cell when the temperature is elevated to a target temperature.

Description

technical field [0001] The present invention relates to an improved method for reducing the anode of a fuel cell, particularly a solid oxide fuel cell. The improved method relates in particular to electrical anode reduction of a solid oxide fuel cell without application of a reducing purge gas, ie in an ambient air environment. Furthermore, the present invention relates to solid oxide fuel cell stacks. Background technique [0002] A fuel cell is an energy conversion device that electrochemically reacts fuel and oxidant to generate direct current. A fuel cell includes a cathode, an electrolyte, and an anode, wherein an oxidant such as air is fed to the cathode and a fuel such as hydrogen is fed to the anode. The electrolyte separates the oxidant from the fuel and allows ion transport of the reactants. [0003] In a typical concept of a solid oxide fuel cell, oxygen ions are formed on the cathode in the presence of an oxidant such as air. Oxygen ions diffuse through the e...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H01M4/88
CPCH01M4/9066Y02E60/50Y02E60/525H01M4/8878H01M2008/1293H01M8/2425H01M4/88H01M8/04H01M8/12
Inventor T.海雷达-克劳森K.J.N.L.延森
Owner TOPSOE FUEL CELL