储能科学与技术2025，Vol.14Issue(2)：779-790,12.DOI:10.19799/j.cnki.2095-4239.2024.0707
考虑多种应用场景的锂离子电池多阶优化充电策略
Multi-stage optimization charging strategy for lithium-ion batteries considering diverse application scenarios
摘要
Abstract
Lithium-ion batteries are extensively used in electric vehicles and other applications due to their excellent performance.A charging strategy offering good charging performance is crucial for lithium-ion batteries.However,the limitations of conventional charging methods pose challenges to their large-scale adoption in electric vehicles.Therefore,we propose an optimal charging strategy for lithium-ion batteries considering various application scenarios.First,we establish the electric,thermal,and aging models of lithium-ion batteries to simulate the charging process and collect data.Then,the state-of-charge based multistage constant current(SMCC)charging strategy is developed based on the battery internal resistance profile of the battery.An objective function incorporating charging speed and state-of-health(SOH)attenuation is established,and the improved Bat Algorithm is used to optimize the SMCC current.The resulting optimal charging strategy was derived under varying weighting coefficients.For specific battery application scenarios,we proposed a balanced SMCC charging strategy based on Pareto frontier,a fast-charging SMCC charging strategy aimed at increasing cycle times.Finally,the three proposed optimal charging strategies are compared with constant current-constant voltage method.Furthermore,we proved that the proposed optimal charging strategies can better adapt to their corresponding application scenarios,shorten the charging time of lithium-ion batteries,and reduce SOH attenuation.关键词
锂离子电池/多应用场景/SMCC策略/均衡充电策略Key words
lithium-ion battery/multiple application scenarios/SMCC strategy/balanced charging strategy分类
信息技术与安全科学引用本文复制引用
段双明,夏馗峰,朱微..考虑多种应用场景的锂离子电池多阶优化充电策略[J].储能科学与技术,2025,14(2):779-790,12.基金项目
新疆维吾尔自治区重点研发任务专项项目(2022B01019-1). （2022B01019-1）
