Maxwell Introduces Higher Voltage, Longer-Lasting Ultracapacitors
7 June 2005
Maxwell Technologies has launched the first of a new family of large-cell ultracapacitor cells and multi-cell modules with increased energy storage and power delivery per unit volume and double the lifecycle of its earlier products.
The announcement comes the week before the 5th International Advanced Automotive Battery & Ultracapacitor Conference.
Maxwell’s new 2.7-volt, BOOSTCAP MC2600 2,600-farad large cell ultracapacitor, and the BMOD2600-16 16-volt Ultracap module (incorporating six MC2600 cells) offer increased voltage from Maxwell’s older ultracapacitors and double the duty cycles from 500,000 to one million.
|New Maxwell Ultracapacitors|
|MC2600 (cell)||BMOD2600 (module)|
|Max Energy (Whr/kg)||5.6||3.1|
|Power density (W/kg)||4,100||1,800|
|Peak Power density (W/kg)||10,400||5,200|
These new products meet or exceed demanding automotive application requirements for both watt-hours of energy storage and watts of power delivery per kilogram, and will perform reliably for more than one million discharge-recharge cycles at 2.7 volts. The proprietary technology on which they are based also significantly reduces material and production cost, positioning Maxwell to achieve our stated goal of pricing large cell ultracapacitors at one cent per farad in million-cell annual volumes.—Richard Smith, Maxwell’s executive vice president for strategic business development
In March, Maxwell won a next-generation ultracapacitor cell and module development contract from the United States Advanced Battery Consortium (USABC), an entity formed by DaimlerChrysler, Ford, General Motors and the U.S. Department of Energy (DOE) to strengthen the domestic auto industry's technology base through cooperative research. (Earlier post.)
As part of the USABC contract, Maxwell’s MC2600 and the proposed auto-specific 48-volt modules it is developing will undergo extensive testing for energy capacity, pulse power, abuse tolerance, calendar life and cycle life at DOE’s Sandia and Idaho national laboratories.
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