Characterisation of lithium plating in rechargeable batteries
AssigneeTwaice Technologies GmbH
InventorMichael BAUMANN
Life of this patent
Estimating the term…
Abstract
A method for characterizing a rechargeable battery (91-96) that is at risk of lithium plating comprises: receiving (1001) operating values (41) of the battery (91-96) as time-series, wherein the operating values of the battery comprise a terminal voltage of the battery (U(t)) and a battery current of the battery (I(t)), determining (1002) a simulated terminal voltage (USim(t)) using a model of the battery (400) on the basis of the battery current (I(t)), comparing (1003) the simulated terminal voltage (USim(t)) with the terminal voltage (U(t)), determining (1004, 1004a, 1004b) a lithium plating state of the battery on the basis of the comparison.
Claims14
A method for characterizing a rechargeable battery that is at risk of lithium plating, comprising:
- receiving operating values of the battery as time-series, wherein the operating values of the battery comprise:
- a terminal voltage of the battery,
- a battery current of the battery,
- determining a simulated terminal voltage using a model of the battery on the basis of the battery current,
- comparing the simulated terminal voltage with the terminal voltage,
- determining a lithium plating state of the battery on the basis of the comparison.
Dependencies are inferred from the claim text.