Inductive Cell Voltage Balancer and Model of Battery Cells and Cell Balancers

Abstract

To ensure that the cells of a battery perform their best and last for as long as possible a circuit known as a cell balancer is used. While there are many different types of these balancers, certain topologies of active capacitor and inductor balancers have advantages that other balancers might not have. An initial PCB of the 2 cell and 4 cell capacitive cell balancers have been assembled and tested using power supplies and bench top loads. The inductive cell balancer PCB was designed and tested to compare with the capacitor based balancer. A PSPICE model of an ANR26650M1B battery cell was created using default PSPICE components. This model is meant to simulate the cell across frequency and temperature.