Effect of Aging Path on Degradation Characteristics of Lithium-Ion Batteries in Low-Temperature Environments
Zhizu Zhang,
Changwei Ji,
Yangyi Liu,
Yanan Wang,
Bing Wang,
Dianqing Liu
Affiliations
Zhizu Zhang
College of Mechanical and Energy Engineering, Beijing Laboratory of New Energy Vehicles and Key Laboratory of Regional Air Pollution Control, Beijing University of Technology, Beijing 100124, China
Changwei Ji
College of Mechanical and Energy Engineering, Beijing Laboratory of New Energy Vehicles and Key Laboratory of Regional Air Pollution Control, Beijing University of Technology, Beijing 100124, China
Yangyi Liu
College of Mechanical and Energy Engineering, Beijing Laboratory of New Energy Vehicles and Key Laboratory of Regional Air Pollution Control, Beijing University of Technology, Beijing 100124, China
Yanan Wang
College of Mechanical and Energy Engineering, Beijing Laboratory of New Energy Vehicles and Key Laboratory of Regional Air Pollution Control, Beijing University of Technology, Beijing 100124, China
Bing Wang
China Automotive Engineering Research Institute Co., Ltd., Chongqing 401122, China
Dianqing Liu
College of Mechanical and Energy Engineering, Beijing Laboratory of New Energy Vehicles and Key Laboratory of Regional Air Pollution Control, Beijing University of Technology, Beijing 100124, China
Typical usage scenarios for energy storage and electric vehicles (EVs) require lithium-ion batteries (LIBs) to operate under extreme conditions, including varying temperatures, high charge/discharge rates, and various depths of charge and discharge, while also fulfilling vehicle-to-grid (V2G) interaction requirements. This study empirically investigates the impact of ambient temperature, charge/discharge rate, and charge/discharge cut-off voltage on the capacity degradation rate and internal resistance growth of 18,650 commercial LIBs. The charge/discharge rate was found to have the most significant influence on these parameters, particularly the charging rate. These insights contribute to a better understanding of the risks associated with low-temperature aging and can aid in the prevention or mitigation of safety incidents.
