Our development comprises of three technologies which are being independently developed with a view to integrate them together at a later stage. However it is important to emphasise that each of these technologies can be separately commercialised.

LFP/Graphene
LFP is the safest and of the one cheapest cathode material and is widely accepted to be the only candidate to fulfil the safety requirement for electric vehicles to be produced and used on a mass scale. The material however suffers from poor conductivity and low practical volumetric energy density. GB has developed a composite LFP/Graphene material which has significantly higher conductivity than the reference industrial material. The developed material shows higher volumetric and gravimetric energy densities at all discharge rates than the reference material. Additionally the final material has potentially high thermal diffusivity which would further improve the safety of the battery.

Silicon/Graphene
Silicon is the next generation of anode material with 10 times the theoretical capacity of presently used graphite. A great deal of research and commercial interest is being directed to produce silicon based stable anodes. The low cycle life of batteries due to expansion of silicon on charging is a major hurdle in commercialisation of this material. The flexibility and conductivity of graphene makes it an ideal material to be used with silicon in the anodes. GB has undertaken a joint project with IFE (Institute of Energy Technology, Norway) to develop graphene based silicon anodes where we have promising results.

Binder less electrodes
Binder less electrodes is a revolutionary technology GB is developing together with CVD Equipment Corporation. Binders are essential in fabrication of battery electrodes however they have several drawbacks. From a fabrication perspective they require toxic solvents and expensive recycling systems. From a performance perspective they consume precious weight and volume, lead to increased resistance and life time decay in the battery. The unique technology GB is developing will not only replace conventional binders in the battery but will also lead to the fabrication of thicker electrodes which in itself can reduce the cost of batteries per KWh by about 30%.



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