Effect of the Charge Process and Discharge Rate on the Lithium Stripping Process Visibility in LiFePO4-Graphite Li-ion Cells during Charge-Discharge Cycling at 0°C

Commercially available 18650 LiFePO4-Graphite Li-ion cells were exposed to charge-discharge cycling at 0°C following two different charge methods: constant current-constant voltage (CC-CV) and constant current (CC), and two different discharge rates: 1 C and 0.2 C. The effect of the charge method an...

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Bibliographic Details
Published in:Denki kagaku oyobi kōgyō butsuri kagaku 2020/07/05, Vol.88(4), pp.340-342
Main Authors: MENDOZA-HERNANDEZ, Omar Samuel, HOSONO, Eiji, ASAKURA, Daisuke, MATSUDA, Hirofumi, UMEDA, Minoru, SONE, Yoshitsugu
Format: Article
Language:English
Subjects:
Cycles
Discharge
Electric cells
Exposure
Graphite
High voltage
High voltages
Li-ion Cells
Lithium
Lithium Plating
Lithium-ion batteries
Low Temperature
Visibility
Voltage
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Summary:Commercially available 18650 LiFePO4-Graphite Li-ion cells were exposed to charge-discharge cycling at 0°C following two different charge methods: constant current-constant voltage (CC-CV) and constant current (CC), and two different discharge rates: 1 C and 0.2 C. The effect of the charge method and discharge rate on the cell performance was analyzed. The cell exposed to CC charge and 1 C discharge-rate showed a high voltage plateau at the beginning of the discharge voltage, while a high voltage plateau was not observed in the discharge profiles of the cells exposed to a discharge rate of 0.2 C.
ISSN:1344-3542
2186-2451
DOI:10.5796/electrochemistry.20-00052