Lithium dendrites puncturing separator induced galvanostatic charge/discharge test problem in Li-symmetric cells
- Resource Type
- Original Paper
- Authors
- Li, Yao; Long, Jin; Liang, Yun; Hu, Jian
- Source
- Ionics: International Journal of IonicsThe Science and Technology of Ionic Motion. 29(11):4933-4938
- Subject
- Separator
Short circuits
Dendrite
Li-symmetric cell
Galvanostatic charge/discharge
- Language
- English
- ISSN
- 0947-7047
1862-0760
The overpotential of Li-symmetric cells with internal short circuits caused by lithium dendrites puncturing the separator during galvanostatic charge/discharge is very low and the overpotential curve shows a straight line without fluctuations, proportional to the test current. Therefore, during galvanostatic charge/discharge testing of Li-symmetric cells, special attention needs to be paid to the presence of short-circuit phenomena to avoid incorrectly attributing the low overpotential after a short circuit to the “excellent” Li+ transport and electrochemical reaction kinetics of the cells.