Unbalanced discharging and aging due to temperature differences among the cells in a lithium-ion battery pack with parallel combination

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A Study of Cell-to-Cell Interactions and Degradation in Parallel Strings: Implications for the Battery Management System (2016, background): “Temperature and thermal-energy distribution Since cell temperature primarily depends on cell impedance and current, a number of studies correlate these parameters with SoH [1,7,8].”
Current and future lithium-ion battery manufacturing (2021, background): “The high resistance not only causes energy loss but also generates much heat, which will result in cell degradation or even thermal runaway (Yang et al., 2016).”
Direct Comparison of Immersion and Cold-Plate Based Cooling for Automotive Li-Ion Battery Modules (2021, background): “Existing literature has demonstrated that, in addition to negatively impacting the cycle life [13], a high temperature gradient across a Li-ion cell results in inhomogeneous current density distribution and state-of-charge (SOC) causing localized ageing throughout the cell [14].”