Generalized Peukert Equations Use for Finding the Remaining Capacity of Lithium-Ion Cells of Any Format

In many studies, for predicting the remaining capacity of batteries belonging to different electrochemical systems, various analytical models based on Peukert equation are used. This paper evaluates advantages and disadvantages most famous generalized equations. For lithium-ion batteries, cannot be used estimation their over entire range discharge currents. However, this proves that equations enable released by with high accuracy. Special attention is paid two equations: C = Cm/(1 + (i/i0)n) Cmerfc((i-i0)/n))/erfc(-i0/n). It shown they correspond experimental data best.