A Method for Online Capacity Estimation of Lithium Ion Battery Cells Using the State of Charge and the Transferred Charge

Markus Einhorn, Fiorentino Valerio Conte, Christian Kral, Jürgen Fleig

IEEE Transactions on Industry Applications · 2011 · 124 citations · 10 references

Concepts

Abstract

In this paper, a method to estimate the capacity of individual lithium ion battery cells during operation is presented. When having two different states of charge of a battery cell as well as the transferred charge between these two states, the capacity of the battery cell can be estimated. The method is described in detail and validated on a battery cell with a current pulse test cycle. It is then applied to a real-life cycle; the accuracy is analyzed and discussed.

References

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