Each Load of Parallel-Connected Cells with Different Capacities and Internal Resistances

Abstract

Taking reuse batteries into consideration, we revealed each load of 2 parallel-connected cells with different performances. As simulation models, 2 types of imaginary cells with either degradation of capacity or internal resistance were prepared in addition to a new cell in order to verify their influences separately. The result indicates that contrary to previous views, the load of the cell with degraded performance is not always smaller in terms of following evaluation items: (1) current expressed as hour rate based on actual capacity and (2) state of charge.