Design and Performance of Bipolar, Flowing Electrolye Zinc-Bromine Batteries for Electric Vehicles Exxon Research and Engineering Company, Linden, NJ

Format:

Conference/Event

Author/Creator:

Malachesky, P. A., author.

Conference Name:

SAE International Congress & Exposition (1982-02-22 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1982

Summary:

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%

Notes:

Vendor supplied data

Publisher Number:

820177

Access Restriction:

Restricted for use by site license