Interpreting and Extending an Analytical Battery Model Using an Iterative Computation Method

In this paper, the authors present an iterative computing method to illustrate the discharge, recovery and charge process of general lithium/lithium-ion batteries. The discharge and recovery processes correspond well to an existing accurate analytical battery model: the R-V-W´s analytical model, and thus interpret this model algorithmically. Our method also extends R-V-W´s model to accommodate the charge process. The work will help the system designers to grasp the characteristics of R-V-W´s battery model. Experiments are performed on a variety of load profiles to show the accuracy of the extended model by comparing the predicted charge time with that derived from the DUALFOIL simulations