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The Army is facing a number of challenges now and in the future. One of the major challenges is in the power sources arena. As the Army continues to move toward digitizing the battlefield, the need for portable power is increasingly becoming a technological hurdle that must be overcome in order...
The operation of batteries in hybrid electric vehicles (HEVs) involves unusual constraints not seen in other applications. This paper reviews the specifications and operational requirements imposed on batteries due to the projected architectures for HEVs as defined by the DOE/PNGV Program. It...
The present status of silver oxide–zinc technology and applications has been described by Karpinski et al. (A.P. Karpinski, B. Makovetski, S.J. Russell, J.R. Serenyi, D.C. Williams, Silver-Zinc: status of technology and applications, Journal of Power Sources, 80 (1999) 53–60), where the...
The lead acid battery chemistry has been utilized to support the energy needs of cars and engines starting for the past 100 years. Conventional lead acid batteries are rather large and heavy to meet the power requirements for most applications. BOLDER Technologies Corporation has taken the...
The science and technology of ultracapacitors are reviewed for a number of electrode materials, including carbon, mixed metal oxides, and conducting polymers. More work has been done using microporous carbons than with the other materials and most of the commercially available devices use carbon...
Vehicle manufacturers worldwide are recognizing the need to elevate the electrical system voltage on their product from the present standard of 12 V to a significantly higher, yet safe, voltage. One of the major challenges emerging from the move to higher voltages is the size, weight, volume,...
Supercapacitors are now being looked at for use in higher power applications such as mobile telecommunications and hybrid electric vehicles. We have examined two different supercapacitors, one is a commercial sample and the other is a supercapacitor of our own design. Four different testing...
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