Patent ID: 7068036

Claim:
A method for estimating the voltage profile for an electrochemical cell, comprising the steps of: a) providing electrochemical cell having an anode comprising lithium and a cathode comprising CF x as a cathode active material activated with a nonaqueous electrolyte; b) determining a planar interface area for the cell; c) discharging the cell under a known load; d) estimating a current density from a relationship between the known load and the planar interface area at a specified depth-of-discharge (DoD) using a first equation of: current density=exp (a+b(ln(load))+c(PIA)) ; e) calculating a relationship between the current density and a voltage using a second equation of: voltage=d+e(current_density) 3 +f(ln(current_density) 2 ); and f) combining the current density and the voltage to predict a voltage capacity at the specified depth-of-discharge.