A novel framework for low-temperature fast charging of lithium-ion batteries without lithium plating

电池(电) 电镀(地质) 锂(药物) 电压 锂离子电池 热的 材料科学 多收费 电极 电流(流体) 汽车工程 电气工程 核工程 化学 工程类 热力学 物理 功率(物理) 医学 地球物理学 内分泌学 物理化学
作者
Ranjun Huang,Gang Wei,Xueyuan Wang,Bo Jiang,Jiangong Zhu,Chenzhen Ji,Hao Chen,Xuezhe Wei,Haifeng Dai
出处
期刊:Chemical Engineering Journal [Elsevier]
卷期号:497: 154729-154729
标识
DOI:10.1016/j.cej.2024.154729
摘要

This paper proposes a novel framework for low-temperature fast charging of lithium-ion batteries (LIBs) without lithium plating. The framework includes three key components: modeling, constraints, and strategy design. In the modeling phase, a new electro-thermal coupled model is introduced, which integrates both frequency-domain and time-domain electro-thermal coupled models. They optimize the bidirectional pulsed current (BPC) heating parameters and charging current, respectively. Terminal voltage boundaries and lithium plating serve as constraints. Terminal voltage is confined within upper and lower limits to prevent battery overcharge and overdischarge. Lithium plating avoidance entails setting a minimum frequency for BPC heating. During charging, lithium plating is mitigated by maintaining negative potential above 0 V. To obtain calculated negative electrode potential, a three-electrode battery is employed to calibrate the electro-thermal coupled model parameters. Subsequently, a novel low-temperature fast charging strategy is devised. This strategy enables intelligent switching between BPC heating and charging, while also synergistically optimizing BPC heating parameters and charging current. The strategy also achieves optimization of both charging speed and energy consumption. Charging the battery SOC from 0.2 to 0.9 in 42 min at −10 °C, without triggering lithium plating, is feasible with this proposed strategy. Compared to strategies focusing solely on current amplitude optimization, heating followed by charging, and traditional methods, this heating strategy exhibits the highest charging speed.
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