Publication about inhomogeneous current distribution in battery modules in the Journal of The Electrochemical Society

Title: “ On the Impact of Internal Cross-Linking and Connection Properties on the Current Distribution in Lithium-Ion Battery Modules”

Within interconnected battery modules or systems, an inhomogeneous current distribution between parallel-connected cells is likely to appear.

The position of the system terminals, internal connection properties or varying contact resistances cause such inhomogeneous current distribution.

The extent to which each of the contributors and the interaction between them affects the current distribution within the battery module is investigated here via various electrically cross-linked, physicochemical-thermal simulations with variable system terminal.

As a recommendation for the assembly of battery modules using multiple lithium-ion cells, the position of the system terminal is of minor importance compared to the presence of cross-connectors and low resistance string connectors.


Link (Open Access):

DOI: 10.1149/1945-7111/abad6b