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New ultracapacitor module from Maxwell takes on heavy loads

Posted: 24 Oct 2005 ?? ?Print Version ?Bookmark and Share

Keywords:maxwell technologies? mbod2600-48? ultracapacitor module? boostcap? mc2600?

Maxwell Technologies' new MBOD2600-48 module is a fully integrated, 48V multi-cell ultracapacitor module in the company's BOOSTCAP line for heavy-duty transportation, industrial energy storage, and power delivery applications. It comprises eighteen 2.7V MC2600 cells touted as having more capacity, delivering more power per unit volume, and lasting longer than any other commercially available ultracapacitor product. More specifically, the MC2600 cells have a power density of 10.4kW/kg and an energy density of 5.6W-hours/kg.

"In addition to meeting or exceeding demanding transportation and industrial application requirements for both watt-hours of energy storage and watts of power delivery per kilogram, these products will perform reliably for more than one million discharge-recharge cycles," said Richard Smith, executive vice president for business development. "The proprietary material science on which they are based also significantly reduces manufacturing cost, positioning Maxwell to achieve our stated goal of pricing large cell ultracapacitors at one cent per farad in multi-million-cell annual volumes." He noted the units have undergone several months of testing and evaluation by selected customers, including ISE, a San Diego-based integrator of hybrid-electric drive trains for buses and other heavy vehicles.

The BMOD2600-48 modules are encased in a rugged, splash-proof, aluminum chassis. They weigh 13.5kg and are 13.4 liters in volume (420-by-200-by-160mm). These modules include temperature and voltage monitoring and internal cell balancing that give designers "plug and play" solutions, plus module-to-module balancing that makes them versatile building blocks for systems with higher voltage requirements.

The BOOSTCAP ultracapacitors are designed to deliver up to 10 times the power and longevity of batteries, require no maintenance and operate reliably at temperatures over -40C to 65C. In transportation applications, ultracapacitors recapture energy from braking for reuse in hybrid drive trains, reducing fuel consumption and emissions. In mission critical industrial applications, they are designed to provide maintenance-free energy storage. They are used in wind turbine blade pitch and braking systems to buffer short-term mismatches between the power available and the power required.

The BMOD2600-48 is priced at $1,900 each in low volume and $1,077 in mid-volume quantities.

- Vince Biancomano


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