Device for determining predictive information from energy storage cell of lithium-ion battery in e.g. electric automobile, has prediction unit to determine information related to future use of cell by utilizing electrical model equivalent

摘要

The device (D) has an estimating unit (ME) that is utilized to determine estimates of voltage (Ue-k) at terminals of an energy storage cell (C) of a multi-cellular battery (BA). A prediction unit (MP) is arranged to determine information related to future use of the cell by utilizing an electrical model equivalent of cell derived from an adaptation of another electrical model to a biasing power (Pcell-k) and using estimated voltage, state variables (Xs-k) and (Xa-k) and the biasing power as input parameters.