Graphene supercapacitor module boosts heavy vehicles

Graphene supercapacitor module boosts heavy vehicles

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By Nick Flaherty

The SkelStart Engine Start Module 2.0 is based on the graphene SkelCap ultracapacitors, providing the highest power and energy density on the market, and is available in 24V and 12V versions. The new module features a casing constructed out of non-flammable material that is resistant to vibration and shock, and is a stud terminal device in BCI Group 31 size for haulage, forestry and marine applications.

Lead-acid batteries have traditionally been the most commonly used solution for starting internal combustion engines in vehicles, despite their limitations in terms of lifetime, power performance, and working environment. However, ultracapacitor-based engine start modules are growing in popularity due to their ability to provide reliable engine starting in extreme conditions, less downtime and maintenance requirements as well as lower replacement costs and fuel consumption.

“Heavy vehicles operating in the haulage, forestry and marine space need to be reliable and power efficient as any downtime rapidly impacts profits.” said Taavi Madiberk, CEO of Tallinn-based Skeleton Technologies. “Based on our technology, SkelStart Engine Start modules are designed to provide reliable engine starting in even the harshest conditions, as well as reduced ongoing costs on maintenance and replacement. Businesses can therefore expect their equipment to work cost effectively year-round, affording them peace of mind.”

Short battery lifetimes hugely impact vehicles in the haulage industry where vehicles are unable to fully charge batteries during rest periods, damaging the cells and shortening the battery lifetime. Ultracapacitor-based Engine Start Modules can start the engine even when batteries are dead, increasing battery lifetimes.

Another common issue in haulage, forestry and marine vehicles are the need to jumpstart lead-acid battery engines in cold weather. Jump starting trucks adds downtime while the vehicle cannot be used and often leads to late delivery fees. Similarly, jumpstarting forestry and marine vehicles is often an issue due to the remote locations involved.

Next: Specifications

The SkelStart Engine Start Module 2.0 can replace a battery, or be installed in addition to existing batteries, to handle all engine starting duties. Skeleton Technologies ultracapacitors are based on patented curved-graphene nanotechnology, which guarantees power density superior not just to batteries but also to other ultracapacitors on the market. Combined with excellent reliability and a very long lifetime, ultracapacitors provide a solution that is not only operationally efficient but also highly cost effective.   


SkelStart ESM 1.0 24V

SkelStart ESM 2.0 24V

Cold Cranking Amps:

921 A

1218 A

Peak Power:

65,3 kW

109,6 kW

Cranking Power:

38 kW

55,4 kW

Cold Cranking Power:

33 kW

48,2 kW


The ultracapacitors are being used by Tier One automotive firms, industrial equipment OEMs, truck fleet operators and aerospace prime contractors.

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