Capacity decline of ambient temperature secondary Li-TiS2 cells

S. Subbarao*, D. H. Shen, C. K. Huang, F. Deligiannis, G. Halpert, E. Peled

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

2 Scopus citations


The main objective of the study described was to identify the causes responsible for the capacity losses observed during cycling of secondary Li-TiS2 cells. Experimental Li-TiS2 cells were fabricated and tested for their cycle life performance. The open circuit voltage of the cells was monitored during the rest period between the charging and discharging. The polarization at the Li and TiS2 electrodes was also monitored during cycling. Cycled cells were disassembled and the cathodes were analyzed by various analytical techniques. The results of the study indicate that the observed capacity loss is almost entirely due to the increased polarization of the TiS2 electrode with cycling. The electrolyte was found to degrade during cycling and the degradation products were found to deposit at the TiS2 electrode, which probably lead to the higher polarization.

Original languageEnglish
Number of pages5
StatePublished - Nov 1991
Externally publishedYes
EventProceedings of the 34th International Power Sources Symposium - Cherry Hill, NJ, USA
Duration: 25 Jun 199028 Jun 1990


ConferenceProceedings of the 34th International Power Sources Symposium
CityCherry Hill, NJ, USA


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