Uneven electrical current distribution in a parallel-connected lithium-ion battery pack can result in different degradation rates and overcurrent issues in the cells. Understanding the electrical current dynamics can enhance configuration design and battery management of parallel connections.
To meet the power and energy requirements of the specific applications, lithium-ion battery cells often need to be connected in series to boost voltage and in parallel to add capacity . However, as cell performance varies from one to another [2, 3], imbalances occur in both series and parallel connections.
The influence of module collector configurations on parallel module is quantified. The optimal module collectors of the N cells parallel module are obtained. To meet the power and energy of battery storage systems, lithium-ion batteries have to be connected in parallel to form various battery modules.
Max CD (SD) of the different configurations. The reason of the MCCs reducing the inhomogeneous currents and SoC within the parallel module is that MCCs of the parallel module make the resistance values of single cell being connected to the module collector more homogeneous, thereby reducing currents inhomogeneity within the module.
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To meet the power and energy of battery storage systems, lithium-ion batteries have to be connected in parallel to form various battery modules. However, different single …
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