储能科学与技术 ›› 2022, Vol. 11 ›› Issue (9): 2879-2890.doi: 10.19799/j.cnki.2095-4239.2021.0635

• 创刊十周年专刊 • 上一篇    下一篇

锂离子电池快充策略技术研究进展

邓林旺1(), 冯天宇1(), 舒时伟1, 张子峰2, 郭彬1   

  1. 1.深圳市比亚迪锂电池有限公司坑梓分公司
    2.弗迪动力有限公司,广东 深圳 518122
  • 收稿日期:2021-11-26 修回日期:2021-12-13 出版日期:2022-09-05 发布日期:2022-08-30
  • 通讯作者: 冯天宇 E-mail:deng.linwang@fdbatt.com;feng.tianyu@fdbatt.com
  • 作者简介:邓林旺(1982—),男,工程师,从事储能及新能源汽车电池管理系统(BMS)的新技术研究、系统开发、软硬件研发、制造生产、组织管理等工作,E-mail:deng.linwang@fdbatt.com

Review of a fast-charging strategy and technology for lithium-ion batteries

Linwang DENG1(), Tianyu FENG1(), Shiwei SHU1, Zifeng ZHANG2, Bin GUO1   

  1. 1.Shenzhen BYD Lithium Battery Co. , Ltd. Kengzi Branch
    2.FinDreams Powertrain Co. , Ltd. , Shenzhen 518122, Guangdong, China
  • Received:2021-11-26 Revised:2021-12-13 Online:2022-09-05 Published:2022-08-30
  • Contact: Tianyu FENG E-mail:deng.linwang@fdbatt.com;feng.tianyu@fdbatt.com

摘要:

电动汽车的普及是锂离子电池的主要需求来源之一。而电动汽车的充电性能是影响普及进程的一个重要的考量参数。在材料体系不变的情况下,取代传统恒流恒压充电策略的新型充电策略近10年内也吸引了很多研究者的关注。另外,新一代电池管理系统也对充电策略提出了更高的要求。本文阐述了各种优化的充电方法及其特点和应用。研究结果表明,与传统的恒流恒压充电策略相比,优化的充电方法可以减少充电时间,改善充电性能并有效延长电池寿命。最后,本文还提出了对未来优化充电策略的展望,希望未来在线辨识和实时更新的模型参数的方法或者通过在线的方法辨识特征信号带来更加强大的充电策略。

关键词: 快充, 充电策略, 电池管理系统, 锂离子电池, 电动汽车

Abstract:

The popularization of electric vehicles is one of the main sources of demand for lithium-ion batteries. The charging performance of electric vehicles is an important parameter that affects the popularization process. With the same material system, a new charging strategy that replaces the traditional constant current and voltage charging strategy has attracted many researchers' attention in recent years. In addition, the new generation of battery management systems stipulates higher requirements for charging strategies. This article describes various optimized charging methods and their characteristics and applications. The research results show that, compared with the traditional constant current and voltage charging strategy, the optimized charging method can reduce charging time, improve charging performance, and effectively extend battery life. Finally, this article also proposes an outlook for the future optimization of charging strategies, hoping that online identification and real-time update of model parameters or the identification of characteristic signals through online methods will bring more powerful charging strategies.

Key words: lithium plating detection, non-destructive detection, online detection, lithium-ion battery, battery safety

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