TY - GEN
T1 - Post-mortem Analysis of Anode Degradation Caused by Fast Charging in Lithium-Ion Battery
AU - Chen, Cuili
AU - Yesilbas, Göktug
AU - Benning, Christine
AU - Wang, Zhiqiang
AU - Li, Guofeng
AU - Schneider, Oliver
AU - Ivleva, Natalia P.
AU - Knoll, Alois Christian
N1 - Publisher Copyright:
© 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2023
Y1 - 2023
N2 - Battery electric vehicles are environmental-friendly transport. However, the fast charging of Lithium-Ion batteries remains problematic. Because fast charging could introduce severe or non-reversible degradation. Thus, this paper dedicates to investigating the aging mechanism caused by fast charging. In the paper, the cylindrical Lithium Iron Phosphate battery is cycled at 4C-rate of more than three thousand times. Then, the battery is dissembled and specific positions are selected on both sides of the anode electrode for Scanning Electrode Microscopy and Energy-Dispersive X-ray Spectroscopy analysis. Results from the aged battery are compared with those captured from a fresh battery having the same calendar aging condition. The post-mortem analysis demonstrates the change in material structure and element composition. It shows that the predominant aging mechanism is lithium deposition, the loss of active material caused by phase transitions, and the dissolution of the cathode current collector. These aging mechanisms will lead to capacity loss or battery resistance increment.
AB - Battery electric vehicles are environmental-friendly transport. However, the fast charging of Lithium-Ion batteries remains problematic. Because fast charging could introduce severe or non-reversible degradation. Thus, this paper dedicates to investigating the aging mechanism caused by fast charging. In the paper, the cylindrical Lithium Iron Phosphate battery is cycled at 4C-rate of more than three thousand times. Then, the battery is dissembled and specific positions are selected on both sides of the anode electrode for Scanning Electrode Microscopy and Energy-Dispersive X-ray Spectroscopy analysis. Results from the aged battery are compared with those captured from a fresh battery having the same calendar aging condition. The post-mortem analysis demonstrates the change in material structure and element composition. It shows that the predominant aging mechanism is lithium deposition, the loss of active material caused by phase transitions, and the dissolution of the cathode current collector. These aging mechanisms will lead to capacity loss or battery resistance increment.
KW - Anode degradation
KW - Energy-dispersive X-ray spectroscopy
KW - Fast charging
KW - Lithium-Ion battery
KW - Scanning electrode microscopy
UR - http://www.scopus.com/inward/record.url?scp=85151152607&partnerID=8YFLogxK
U2 - 10.1007/978-981-99-0553-9_23
DO - 10.1007/978-981-99-0553-9_23
M3 - Conference contribution
AN - SCOPUS:85151152607
SN - 9789819905522
T3 - Lecture Notes in Electrical Engineering
SP - 217
EP - 224
BT - Proceedings of the 3rd International Symposium on New Energy and Electrical Technology
A2 - Cao, Wenping
A2 - Hu, Cungang
A2 - Chen, Xiangping
PB - Springer Science and Business Media Deutschland GmbH
T2 - 3rd International Symposium on New Energy and Electrical Technology, ISNEET 2022
Y2 - 25 August 2022 through 27 August 2022
ER -
