Research on Influence of Temperature on Capacity Fade of Lithium Ion Battery

Research on Influence of Temperature on Capacity Fade of Lithium Ion Battery

In this paper, the research object is the ternary lithium battery with the NCA as positive material and graphite as negative material. The model of one-dimensional capacity fade is established by COMSOL. At different simulated temperatures, the changes of the SOC and the voltage drop of the SEI film...

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Veröffentlicht in:IOP conference series. Earth and environmental science 2021-06, Vol.791 (1), p.12102
Hauptverfasser: Bai, Dingsong, An, Ziliang, Wang, Ning, Liu, Shaofeng, Yu, Xintong
Format: Artikel
Sprache:eng
Schlagworte:
Lithium
Lithium batteries
Lithium-ion batteries
Rechargeable batteries
Voltage drop
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Zusammenfassung:In this paper, the research object is the ternary lithium battery with the NCA as positive material and graphite as negative material. The model of one-dimensional capacity fade is established by COMSOL. At different simulated temperatures, the changes of the SOC and the voltage drop of the SEI film on the positive surface were analyzed. The results show that the SOC of average on the positive surface of the battery decreases with the increase of temperature and increase of the battery impedance.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/791/1/012102