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Sodium-Metal Chloride Battery Research at JPLSodium - metal chloride batteries have certain distinct advantages over sodium - sulfur batteries such as increased safety, inherent overcharge capability and lower operating temperatures. Two systems, i.e., Na/FeCl2 and Na/NiCl2 were developed extensively elsewhere and evaluated for various applications including electric vehicles and space. Their performance has been very encouraging and prompted a detailed fundamental study on these cathodes here at the Jet Propulsion Laboratory. A brief review of our studies on these new cathode materials is presented here. The initial efforts focused on the methods of fabrication of the electrodes and their electrochemical characterization." Subsequent studies were aimed at establishing the reaction mechanism, determining the kinetics and identifying the rate-limiting processes in the reduction of metal chloride cathodes. Nickel chloride emerged from these studies as the most promising candidate material and was taken up for further detailed study on its passivation - a rate limiting process - under different experimental conditions. Also, the feasibility of using copper chloride, which is expected to have higher energy density, has been assessed. Based on the criteria established from the voltametric response of FeCl2, NiCl2 and CuCI2, several other transition metal chlorides were screened. Of these, molybdenum and cobalt chlorides appear promising.
Document ID
19910023252
Acquisition Source
Glenn Research Center
Document Type
Conference Paper
Authors
B V Ratnakumar
(Jet Propulsion Lab La Cañada Flintridge, California, United States)
A I Attia
(Jet Propulsion Lab La Cañada Flintridge, California, United States)
G Halpert
(Jet Propulsion Lab La Cañada Flintridge, California, United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1991
Publication Information
Publication: Journal of Power Sources: Proceedings of the Third Space Electrochemical Research and Technology Conference
Publisher: Elsevier
Volume: 36
Issue: 3
Issue Publication Date: December 1, 1991
ISSN: 0378-7753
e-ISSN: 1873-2755
Subject Category
Energy Production And Conversion
Meeting Information
Meeting: 3rd Space Electrochemical Research and Technology (SERT) Conference
Location: Cleveland, OH
Country: US
Start Date: April 9, 1991
End Date: April 10, 1991
Sponsors: Lewis Research Center
Accession Number
91N32566
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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