Study on the Voltage Characteristic of Lithium Ion Battery during Rest Period after Charge

DOI

10.2991/icmmcce-17.2017.160How to use a DOI?

Keywords

Lithium Ion Battery; Rest; Voltage Model

Abstract

The open circuit voltage (OCV) of lithium ion battery is a key parameter for hybrid electric vehicle (HEV) to estimate the state-of-charge (SoC). And its instability will lead to big error of SoC estimation and have difficulty in implementing the dynamic control strategy of HEV, especially when the lithium ion battery rests after regenerative braking. According to the theory of electrochemistry, the lithium iron phosphate battery is studied in order to analyze the influence mechanism of lithium ion diffusion on the OCV when it rests after charge. And an OCV model appropriate for the rest period after charge is built by combining experiment with parameter identification method. The result of experiment shows that the OCV model is consistent with the OCV characteristic.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lifu Li
AU  - Dongyu Zhang
PY  - 2017/09
DA  - 2017/09
TI  - Study on the Voltage Characteristic of Lithium Ion Battery during Rest Period after Charge
BT  - Proceedings of the 2017 5th International Conference on Mechatronics, Materials, Chemistry and Computer Engineering (ICMMCCE 2017)
PB  - Atlantis Press
SP  - 896
EP  - 902
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmmcce-17.2017.160
DO  - 10.2991/icmmcce-17.2017.160
ID  - Li2017/09
ER  -