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Multilayer Electrochemical Cell Technology (MECT) using sol-gel
processing
An oxygen generator has been prepared using sol-gel method. The
originality of the preparation lies in the use of the sol-gel route to prepare
multilayer device. The sol-gel method provides the means to deposit thin
layers on any kind of substrate shape.
Benefits:
 | The thin ceramic layers results in lower voltage across the
membrane. This allows the system configuration to operate at higher
current density and lower electrode area (lower system weight/unit volume of
oxygen production). |
| The thickness of the thin YSZ layer is five (5) order of magnitude thinner
than the conventional laminated YSZ electrolyte. |
| A molecular bond is produced which results in excellent strength and no
leakage. |
| Use of thin, very stable yttria stabilized zirconia (YSZ) as the solid
electrolyte will help to achieve lower operating temperatures. |
Applications
- Oxygen generation from air or Carbon dioxide.
- Solid oxide fuel cells.
- Sensors
- Breathing air purification
- Removal of oxygen from inert gas such as argon to a few parts per
trillion.
Patent:
" Multi-layer Electrochemical
Cell Technology Using Sol-Gel Processing Applied to Ceramic Oxygen Generator",
United States Patent Application Filed January 19,2001
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