4 FAQs about Consistency of series solar container lithium battery pack
What parameters characterize battery pack consistency?
Based on the above analysis, this paper defines the parameters that characterize the battery pack consistency as the capacity of each cell in the pack Qi, the SOC difference of each cell SOCdiff, and the internal resistance of cell Ri.
How does a series battery pack affect socdiff?
However, when a series battery pack is charged, the current flowing through all cells is the same, that is, the amount of electricity ΔQ charged into all cells at the same time is the same, but the Qi of each cell is different, so SOCdiff will change with the change of the battery pack SOC and cannot accurately describe its consistency.
Why is consistency important in battery characterization?
Consistency is the main indicator for evaluating battery pack performance, and its characterization method needs to be able to express the external discharge capability of the battery pack and truly describe its current state without changes in external factors. Single-factor indicators cannot fully describe the battery state.
What is battery OCV consistency modeling?
Battery OCV consistency modeling As expressed in Section 2, compared to the capacity and the internal resistance, the SOC inconsistency has the most significant influence on battery pack energy utilization efficiency, which is usually the objective of battery equilibrium and maintenance.