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Posted: Apr 11, 2011

Eden Energy Announces First Sale of Carbon Nanofibers for Commercial Battery Applications

(Nanowerk News) Eden Energy Ltd ("Eden") has made its first commercial sale of its carbon nanotubes (CNT) and carbon nanofibres (CNF) to an industrial battery manufacturer.
The sale followed the testing by the battery manufacturer of the suitability of Eden's nano-carbon fibres in its batteries, which include a wide range of rechargeable industrial batteries including re-chargeable vehicle batteries. They advertise that a very small quantity of carbon nanotubes added to material in the battery, dramatically increases the storage capacity of the battery and significantly reduces the time taken to recharge the battery.
Whilst the first sale was of only a relatively small quantity of carbon, it is nevertheless understood to be sufficient for possibly up to 1000 batteries, but most importantly is confirmation from the market of the commercial acceptability of Eden's carbon nano-products for electrical applications.
Indian Concrete Manufacturers to Test Eden's Nano-Carbon Fibres
Several leading Indian concrete manufacturers have expressed interest in testing Eden's carbon nanofibres as an additive to concrete to increase its performance, particularly the compressive strength. This follows encouraging results that Eden has achieved in trials in US, where initial trials have shown that the addition of CNF equal to 0.1% (by weight) of the amount of the cement in concrete can increase compressive strength by up to 19% without affecting the flexural strength of the concrete. This potential improvement in compressive strength is relevant to all grades of concrete and is hoped to open up a very large market for the CNF in the enormous Indian concrete market.
Eden is also conducting a range of further tests of the CNF enhanced concrete to further optimise the compressive strength benefits and to also test the effect on a number of other properties of the concrete, that are relevant to specific applications such as high strength concrete used in the construction of bridges, flyovers and high rise buildings, and ultra-hard concrete for use in high impact applications.
Initial Testing of Eden's Nano-Carbon Fibres in Rubber and Plastics to Begin
Eden will commence testing at the Hythane Company's laboratory in Colorado, USA, the effects of mixing carbon nanotubes and carbon nanofibres with rubber and plastic.
Published test results of trials by other research groups indicate that in the case of rubber, which is normally made with a base mixture of rubber (67wt%) and carbon black (33wt%), substitution of 5wt % of carbon nanotubes for the 33wt% carbon black, can increase the tensile strength of the rubber by up to 35% and the strain energy density by up to 37%, potentially resulting in lighter, longer life tyres. In the case of plastics, published test results of other researchers have shown that the addition of carbon nanotubes and carbon nanofibres to the plastic produces a significant increases in strength, and both electrical and thermal conductivity.
1wt% of multiwalled nanotubes, added to polyethylene increased its strain energy density by approximately 150% and its ductility by approximately 140%.
In the case of carbon fibre strengthened epoxy composites, addition of 0.5wt% of multiwalled carbon nanotubes increased stiffness and strength by 10-15% and sheer strength by 25-30%.
Eden's New Pyrolysis Technology
Eden's new Pyrolysis technology, developed by Eden and the University of Queensland, produces hydrogen and carbon nano-fibres or carbon nanotubes from natural gas (methane) and has the very significant advantage of not producing carbon dioxide as an unwanted by-product.
In India, where Eden is planning to demonstrate its hydrogen enriched HythaneŽ fuel in two bus trials later this year, establishing a market for a significant quantity of the nano-carbon products will not only enable production of large quantities of hydrogen but also a significant amount of valuable carbon nano-products.
Eden's pyrolysis process and catalyst production capability, is currently being scaled up at Hythane Company to a small scale commercial production level of up to 100 tonnes of carbon per year, and is planned to be completed by the end of 2011, which, if successful, will open the way to a commercial rollout in 2012, with initial deployment being planned for India.
Source: Eden Energy Ltd (press release)
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