Design studies carried out on 20-30 kWh zinc-bromine electric vehicle battery systems project energy densities of 65-70 Wh/kg and 80-85 Wh/l. Zinc bromine concentration and zinc electrode loading are the key variables which determine energy density. Power density, projected to be 90-100 W/kg, is primarily a function of electrolyte conductivity, since cell polarization studies show very little concentration or activation polarization.A four cell Zn-Br2 stack ( 250 Wh) has been tested under the SAE J227aD driving schedule as negotiated by the DOE/GE/Chrysler electric vehicle (ETV-l). Test data indicate the need for conductivity additives to the electrolyte to achieve the necessary power densities. Using KCl and other conductivity additives, vehicle ranges of 95-100 miles can be projected with the use of regenerative braking. Charge acceptance during regenerative braking is very good (∼100%) and results in an improvement in vehicle range of 25%.


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    Title :

    Design and Performance of Bipolar, Flowing Electrolye Zinc-Bromine Batteries for Electric Vehicles


    Additional title:

    Sae Technical Papers


    Contributors:
    Young, A. (author) / Kantner, E. (author) / Einstein, H. (author) / Newby, K. (author) / Grimes, P. (author) / Malachesky, P. A. (author) / Bellows, R. J. (author)

    Conference:

    SAE International Congress and Exposition ; 1982



    Publication date :

    1982-02-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Design and performance of bipolar, flowing electrolyte zinc-bromine batteries for electric vehicles

    Malachesky,P.A. / Bellows,R.J. / Einstein,H. et al. | Automotive engineering | 1982


    Design of Bipolar, Flowing Electrolyte Zinc-Bromine Electric Vehicle Battery System

    Young, A. R. / Einstein, H. E. / Newby, K. R. et al. | SAE Technical Papers | 1983


    Design of bipolar, flowing electrolyte zinc-bromine electric vehicle battery system

    Malachesky,P.A. / Bellows,R.J. / Einstein,H.E. et al. | Automotive engineering | 1983



    Zinc-bromine battery design for electric vehicles

    Bellows, R.J. / Grimes, P. / Einstein, H. et al. | Tema Archive | 1983