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Volvo Develops New Energy Storage Technology

New-Energy-Storage-TechnologyVolvo Car Group has developed a revolutionary concept for lightweight structural energy storage components that could improve the energy usage of future electrified vehicles.

The material, consisting of carbon fibers, nano-structured batteries and super capacitors, offers lighter energy storage that requires less space in the car, cost effective structure options and is eco-friendly.

As part of an EU-funded research project, including nine other major participants, Volvo Car Group was the only car manufacturer in the project. The project identified a feasible solution to the heavyweight, large size and high costs associated with the batteries seen in hybrids and electric cars today, whilst maintaining the efficient capacity of power and performance. The research project took place over three and a half years and is now realized in the form of car panels within a Volvo S80 experimental car.

The answer was found in the combination of carbon fibers and a polymer resin, creating a very advanced nanomaterial, and structural super capacitors. The reinforced carbon fibers sandwich the new battery and are molded and formed to fit around the car’s frame, such as the door panels, the boot lid and wheel bowl, substantially saving on space. The carbon fiber laminate is first layered, shaped and then cured in an oven to set and harden. The super capacitors are integrated within the component skin. This material can then be used around the vehicle, replacing existing components, to store and charge energy.

The material is recharged and energized by the use of brake energy regeneration in the car or by plugging into a main electrical grid. It then transfers the energy to the electric motor which is discharged as it is used around the car. The breakthrough showed that this material not only charges and stores faster than conventional batteries can, but that it is also strong and pliant.

The results so far

Today, Volvo Car Group has evaluated the technology by creating two components for testing and development — a trunk lid and a plenum cover, tested within the Volvo S80.

The trunk lid is a functioning electrically powered storage component and has the potential to replace the standard batteries seen in today’s cars. It is lighter than a standard trunk lid, saving on both volume and weight. The new plenum demonstrates that it can also replace both the rally bar, a strong structural piece that stabilizes the car in the front, and the start-stop battery. This saves more than 50 percent in weight and is powerful enough to supply energy to the car’s 12-volt system

It is believed that the complete substitution of an electric car’s existing components with the new material could cut the overall weight by more than 15 percent. This is not only cost effective but would also have improvements to the impact on the environment.[wzslider height=”400″ lightbox=”true”]

Oct 18, 2013Blagojce Krivevski
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Blagojce Krivevski

Blagojce Krivevski is physicist and green technology lover. Keep in touch with Blagojce through his email, web site, Twitter, Linkedin, Facebook and Google+.

October 18, 2013 Electric Car News, Technologyelectrified vehicles, Energy Storage Technology, New Energy Storage Technology, Volvo, Volvo Energy Storage Technology, Volvo New Energy Storage Technology
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