TITLE

Study of a high power density sodium polysulfide/bromine energy storage cell

AUTHOR(S)
Ge, S.H.; Yi, B.L.; Zhang, H.M.
PUB. DATE
February 2004
SOURCE
Journal of Applied Electrochemistry;Feb2004, Vol. 34 Issue 2, p181
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Nickel catalyst supported on carbon was made by reduction of nickelous nitrate with hydrogen at high temperature. Ni/C catalyst characterization was carried out by XRD. It was found that the crystal phase of NiS and NiS2 appeared in the impregnated catalyst. Ni/C and Pt/C catalysts gave high performance as the positive and negative electrodes of a sodium polysulfide/bromine energy storage cell, respectively. The overpotentials of the positive and negative electrodes were investigated. The effect of the electrocatalyst loading and operating temperature on the charge and discharge performance of the cell was investigated. A power density of up to 0.64 W cm-2 (V = 1.07 V) was obtained in this energy storage cell. A cell potential efficiency of up to 88.2% was obtained when both charge and discharge current densities were 0.1 A cm-2.
ACCESSION #
16781890

 

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