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Iodine utilization in Li/I/sub 2/(poly-2-vinylpyridine) batteries

Journal Article · · Proc. - Electrochem. Soc.; (United States)
OSTI ID:5292149

Capacity losses attributable to (1) iodine-donor reactions in the cathode, (2) self-discharge, and (3) polarization, were estimated for a lithium/iodine (poly-2-vinylpyridine) battery. Experimental data came from calorimetric measurements, NMR experiments, chemical analyses and discharge curves. These losses were modeled as a function of current drain and subtracted from the stoichiometric capacity of the battery. The resulting capacity versus drain plot is a ''mound'' with an optimum utilization occurring in the 10-50 /mu/a discharge rate region. Capacity decreases at lower discharge rates because of increased self-discharge losses and at higher discharge rates because of polarization. 8 refs.

Research Organization:
Medtronic Inc, Minneapolis, Minn, USA
OSTI ID:
5292149
Journal Information:
Proc. - Electrochem. Soc.; (United States), Journal Name: Proc. - Electrochem. Soc.; (United States) Vol. 80-4; ISSN PESOD
Country of Publication:
United States
Language:
English