Why Cella Hydrogen Storage Solutions?
- Cella material allows hydrogen to be stored in a solid state at temperatures stable below 50 centigrade.
- The material has a low toxicity and works at low pressures and low temperatures.
- Plastic-like material containing up to 1 litre of hydrogen per gram
- Simple and scalable industrial processing methods.
Cella Energy has developed several key, related technologies using our proprietary materials science expertise. The combined system, fuel cell plus gas generator is:
- Up to three times lighter than a Lithium-ion battery for the same stored energy
- A simple solid-state system with no liquids or moving parts
- Better specific energy compared to compressed gas at small scales and comparable at large scales
- Lithium based batteries catch fire if the containment is breached; this cannot happen with the Cella system prior to use
- Transport codes are forecast to be less stringent than Lithium-ion batteries
Cella’s production process takes a material with one of the highest useable hydrogen contents by weight, and turns it into a hi-tech composite by incorporating polymer. The material forms a microporous plastic-like solid which can be pressed, shaped or extruded into any form and to fit any space. The material production uses commercially scalable methods and Cella is currently capable of producing up to 100kg of material a week.
Each gram of Cella material produces up to 1 litre of hydrogen gas, giving it a very high specific energy (energy per unit weight), making it ideal in mobile or portable applications where weight is crucial. The material can be packaged into a cartridge that, combined with a fuel cell, has two to three times the specific energy of a lithium-ion battery, or to make a system comparable to 700 atmosphere compressed hydrogen but without the same safety concerns or cost of infrastructure.
With our proprietary processes, the material can be pelletised to form a solid fuel with fluid properties. This overcomes the challenge of transporting large quantities to filling stations and gives drivers a similar filling experience to the liquid fuels of today. One of the biggest challenges facing the roll-out of hydrogen cars is the investment in high-pressure filling stations. With a fluid-like transport system for Cella fuels, existing pump and tanker technologies can be used with minimal alterations.
Our hydrogen storage technology:
Recycling of the used material
Technically Cella’s material is based on a chemical hydride which means it has excellent performance but it requires a chemical process to recycle it back to its pristine state.
Our scientists and engineers are working hard with chemical industry partners to take the known recycling methods and scale them into a cost effective industrial process.
The use of Cella material’s in pellet form that can be pumped like a fluid makes it easy to use simple inexpensive pumps, like those used in a vacuum cleaner, to move the material into and out of a vehicle and to transport it by tanker to and from the recycling plant.
Reduction of CO2 emissions
Cella’s material contains a lot of energy which needs to be put back into it each time it is recycled. If this energy comes from green sources then Cella’s material can have a powerful impact on global CO2 emissions and the security of a nation’s energy supply.