• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2026, Vol. 62 ›› Issue (10): 286-297.doi: 10.3901/JME.260344

• 运载工程 • 上一篇    

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基于无线电能传输的锂离子电池交直流复合加热方法研究

曲思宇, 王军, 张奎, 熊瑞   

  1. 北京理工大学电动车辆国家工程研究中心 北京 100081
  • 收稿日期:2025-05-03 修回日期:2025-12-09 发布日期:2026-07-29
  • 作者简介:曲思宇,男,1999年出生。主要研究方向为动力电池低温热管理。E-mail:15065149573@163.com;王军,男,1968年出生,副教授,硕士研究生导师。主要研究方向为车辆动力学。E-mail:wangjunbit@bit.edu.cn;张奎,男,1992年出生,博士研究生。主要研究方向为电池低温热管理。E-mail:zk_bit@163.com;熊瑞(通信作者),男,1985年出生,教授,博士研究生导师。主要研究方向为新能源载运装备动力电池系统智能感知与自主调控。E-mail:rxiong@bit.edu.cn
  • 基金资助:
    北京市自然科学基金-小米创新联合基金资助项目(L223013)。

Research on DC-AC Hybrid Heating Method of Lithium-ion Battery Based on Wireless Energy Transmission

QU Siyu, WANG Jun, ZHANG Kui, XIONG Rui   

  1. National Engineering Research Center for Electric Vehicle, Beijing Institute of Technology, Beijing 100081
  • Received:2025-05-03 Revised:2025-12-09 Published:2026-07-29

摘要: 发展电动汽车是我国的国家战略,也是实现双碳目标的强力支撑。锂离子电池作为电动汽车的重要能量源,其低温充放电特性缺陷会直接导致电动车辆低温起不来和跑不远的困境。围绕锂离子电池低温快速加热问题展开:设计一种基于无线能量传输拓扑的直流和交流复合加热系统,依托电池生热特性实施交流加热和电触发直流加热的高效切换;研究不同初始条件下交流加热、直流加热方法的产热特性,明晰加热电流有效值、初始电量、开关频率、占空比等不同加热参数对加热效果的影响规律及不同加热方式对电池寿命的影响;应用模糊控制理论,建立了交流和直流复合加热策略。测试结果表明,-20 ℃加热至0 ℃耗电量<5%,温升速率≥3 ℃/min,200次加热容量损失≤2.37%。

关键词: 锂离子电池, 低温加热, 无线传能, 交流加热, 电触发加热, 复合加热策略

Abstract: The development of electric vehicles is China’s national strategy and a strong support for achieving the carbon peaking and carbon neutrality goals. Lithium-ion battery is an important energy source for electric vehicles, and its low-temperature charging and discharging characteristics directly lead to the dilemma that electric vehicles fail to start and exhibit severe range degradation. This study focuses on the rapid heating of lithium-ion batteries at low temperature: A DC-AC hybrid heating system based on wireless energy transmission topology is designed. The efficient switching between AC heating and pulse self-heating is realized based on the heat generation characteristics of the battery. The heat generation characteristics of AC heating and DC heating methods under different initial conditions were studied. The influence of different heating parameters such as effective value of heating current, initial power, switching frequency and duty cycle on heating effect and the influence of different heating methods on battery life were clarified. Based on the fuzzy control theory, the AC and DC compound heating strategy is established. The test results show that the power consumption from -20 ℃ to 0 ℃ is less than 5%, the temperature rise rate is more than 3 ℃/min, and the battery capacity degradation of 200 times heating is less than 2.37%.

Key words: lithium ion battery, low temperature heating, wireless power transmission, AC heating, electric trigger heating, hybrid heating strategy

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