Electric vehicles (EVs) with conventional architecture may be capable of a range of 72-80 km (45-50 miles) with a 35 Wh kg-1 lead/acid battery with a weight equal to 25% of that of the vehicle. An improved vehicle (such as the GM Impact) with lower energy utilization and architecture that allows greater battery weight may attain 160 km (100 miles). A battery corresponding to the mid-term goal of the US Advanced Battery Consortium in an impact-type vehicle could allow 480 km (300 miles) range. It remains to be seen if this will be technically and economically attained. The EV is more likely to be made practical with the development of a satisfactory polymer-exchange-membrane (PEM) fuel cell, which will involve the same recharging logistics as those of a gasoline vehicle, with much improved energy efficiency. Considerable progress is still required, but one major problem, the amount of platinum catalyst required per vehicle, appears to have been overcome. K loading of 0.15 g/kW now appears to be feasible, so major production of such vehicles will allow platinum producers to keep pace. The advent of the PEM-fuel-cell/battery hybrid vehicle will open up a larger market for rechargeable batteries than that for vehicles which use traction batteries alone. Economics seem to point to the fact that such vehicles will use lead/acid batteries for the hybrid peak power and regenerative braking element


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    Title :

    Electrochemical energy-progress towards a cleaner future: lead/acid batteries and the competition


    Additional title:

    Elektrochemische Energie: Fortschritt hinsichtlich einer sauberen Zukunft: Blei-Säure-Batterien und der Wettbewerb


    Contributors:


    Publication date :

    1995


    Size :

    11 Seiten, 18 Quellen




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English





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