Modeling Transients in Li/CFx-SVO Hybrid-Cathode Batteries

This document describes a first-principles-based mathematical model developed to predict the transient voltage-time behavior of batteries having hybrid cathodes comprising a mixture of carbon monofluoride (CFx) and silver vanadium oxide (SVO). These batteries typically operate at low to moderate rates of discharge, lasting several years. However, newer applications demand high-rate discharges from these batteries, although for a relatively short period of time. The model presented here is a very useful tool for design optimization and performance prediction of batteries under low-rate discharges as well as high-current pulses.