Making
SOFCs
Since
the "Industrial Revolution", we have used fossil fuels.
After
the oil crisis, however, we need cleaner energy source to replace them.
And
now fuel cells are attracting a great deal of attention
because
they are considered to be more efficient than any other energy source known so
far.
Among
all the energy conversion systems, Solid oxide fuel cells
(SOFCs),
which
are operated at high temperature, are able to achieve the highest efficiency
when
co-generation system is combined using exhaust heat of the
system.
In
the present state of SOFC research, there are many problems to be solved for
practical application
but
the research is under way all over the world and getting some results.
Purpose
We
investigate about the manufacture methods of Cell, and combinations of an
electrolyte, an anode and a cathode.
Each
group chooses the combination which they think most suitable,
and
in order to obtain a high power generation performance, manufacture and
experiments are conducted.
Our
partner in this project is
We
communicate each other by e-mail, and promote this project for the good
results.
Reporting
progress
¡¦Making
pellets of the materials chosen by each group
¡¦Hydrostatic
pressing at 150MPa
Table1.Sintring
conditions
|
|
Temperature(ºC) |
Times(h) |
Atmosphere |
|
A:SCY |
1600 |
10 |
air |
|
B:YSZ |
1700 |
10 | |
|
C:GDC |
1600 |
6 |
Table2.Overview
of characteristic data of our samples
|
|
Diameter(mm) |
Thickness(mm) |
Relative
Density(%) |
|
A:SCY |
15.9 |
1.25 |
94.7 |
|
B:YSZ |
14.6 |
1.56 |
99.9 |
|
C:GDC |
16.8 |
1.13 |
96.1 |
¡¦Making
the presentation for TV conference
¡¦Polishing
the pellet
Next
program
¡¦Making
and choosing the anode and cathode
¡¦Test
of the generation of electricity
¡¦Presentation
of the results and discussion among groups
¡¦Summary