Improvement of the electrode allows for increasing the density of the stored energy in the battery or supercapacitor.
The problems with existing technologies
In chemical power sources or electrical energy storage devices there are two problems:
- Expansion of the surface area of the active electrode.
- Protection of the conductive metallic electrode from degradation by the electrolyte.
Carbon is a multi-purpose material that can provide a solution to these problems. Carbon is widely used in supercapacitors, chemical sources of electrical energy and fuel cells.
Activated carbon is a porous material which is prepared from various organic carbonaceous materials:
– Charcoal and coconut charcoal;
– Bituminous-coal and petroleum cokes.
Currently in the manufacture of activated carbon supercapacitors the existing specific capacity for an area of 1 cm² and a layer thickness of one nanometer reaches 2…4 µF.
Carbon nanotubes “grown” in a vacuum
The area of the active electrode is 1 cubic centimetre, depending on the diameter of the carbon nanotubes
How can the density of the electrical energy stored in the supercapacitor, for example, be increased?
Enlarge the surface area of the supercapacitor electrode, in other words, “shove” a greater area into the same amount of volume.
For this the activated carbon in the electrode must be replaced with carbon nanotubes or graphene compounds “grown” in a vacuum.
The carbon magnetron deposition technology that we are proposing gives both a dense and at the same time high-porous carbon coating with an area of 2000…5000 square meters per cubic centimeter of coating!
The specific capacity of carbon coatings obtained by us using vacuum magnetron deposition in a vacuum reaches 30 µF/cm² ∙ nm.
Model of the hybrid active electrode made from carbon nanotubes
What carbon nanotubes look like
Approximately 1/50,000th the width of a human hair!
The strongest and most durable material on earth (> 300 X stronger than steel)
The total market for energy storage devices in 2015
Electric transport bn $
Power supply (UPS) bn $
Solar and wind energy bn $
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Our third technological process is the creation of a new separator
Improvements to the separator in our technological process increase the reliability of the energy storage device when the battery is overloaded.