EIS study of the influence of BrCl on the behavior of electrodes in Li/SOCl2 cells

The influence of BrCl on the impedance response of both the lithium anode and the carbon cathode in Li/SOCl 2 cells was studied. The impedance of the lithium anode increases with storage time while the addition of BrCl to Li/SOCl 2 cells decreases the impedance. However, the porous carbon cathode sh...

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Bibliographic Details
Published in:Journal of applied electrochemistry 2009-02, Vol.39 (2), p.155-158
Main Authors: Ge, Hong-Hua, Guo, Yong-Sheng, Guo, Rui-Feng, Wu, Yi-Ping, Zhou, Guo-Ding
Format: Article
Language:English
Subjects:
Chemistry
Chemistry and Materials Science
Electrochemistry
Industrial Chemistry/Chemical Engineering
Original Paper
Physical Chemistry
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Summary:The influence of BrCl on the impedance response of both the lithium anode and the carbon cathode in Li/SOCl 2 cells was studied. The impedance of the lithium anode increases with storage time while the addition of BrCl to Li/SOCl 2 cells decreases the impedance. However, the porous carbon cathode shows a small film resistance before discharge. The addition of BrCl to Li/SOCl 2 cells also decreases the impedance, especially for that part of the interface reaction resistance R 2 . As a rule, the film resistance of the lithium anode decreases sharply during the early period of discharge, while that of the porous carbon cathode rises rapidly. It follows that the porous carbon cathode is the rate controlling electrode during discharge.
ISSN:0021-891X
1572-8838
DOI:10.1007/s10800-008-9660-x