Balancing Charging Efficiency and Thermal Safety: A Comparative Analysis of Multistage Constant Current Charging Protocols

The fast charging of lithium-ion batteries (LIBs) is crucial for electric vehicle applications yet poses thermal safety challenges. This research delves into the effects of current switching frequency (CSF) within multistage constant current charging (MSCC) protocols on LIBs thermal performance. By...

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Published in:Industrial & engineering chemistry research 2024-05, Vol.63 (22), p.10054-10066
Main Authors: Jiao, Meiyuan, Du, Jianglong, Xu, Haihua, Li, Jia-hui, Fu, Michelle, Yang, Wenqi, Luan, Weiling, Lian, Cheng, Liu, Honglai
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container_issue 22
container_start_page 10054
container_title Industrial & engineering chemistry research
container_volume 63
creator Jiao, Meiyuan
Du, Jianglong
Xu, Haihua
Li, Jia-hui
Fu, Michelle
Yang, Wenqi
Luan, Weiling
Lian, Cheng
Liu, Honglai
description The fast charging of lithium-ion batteries (LIBs) is crucial for electric vehicle applications yet poses thermal safety challenges. This research delves into the effects of current switching frequency (CSF) within multistage constant current charging (MSCC) protocols on LIBs thermal performance. By integrating electrochemical-thermal model simulations with experimental validation, we reveal that increasing CSF enhances heat dissipation, leading to lower battery temperatures postcharging. Notably, considering the design cost, an 8SCC protocol emerges as the most effective, reducing surface temperatures by approximately 1.5 °C compared to a 2SCC protocol, without compromising charging efficiency. This study provides insights into optimizing MSCC protocols for LIBs, balancing fast charging with thermal stability, which is pivotal for the advancement of high-performance energy storage systems.
doi_str_mv 10.1021/acs.iecr.4c00971
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title Balancing Charging Efficiency and Thermal Safety: A Comparative Analysis of Multistage Constant Current Charging Protocols
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