Study on Fast Charging and Cooling Strategies for Power Battery Packs under High Ambient Temperatures

Zhang Qin; Yu Yuyang; Huo Xintao

doi:10.12465/issn.0253-4339.20260804002

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Study on Fast Charging and Cooling Strategies for Power Battery Packs under High Ambient Temperatures

更新时间：2026-09-15

- Study on Fast Charging and Cooling Strategies for Power Battery Packs under High Ambient Temperatures
- Journal of Refrigeration Pages: 1-8(2026)
- 作者机构：
  
  1.安徽三联学院智慧交通现代产业学院合肥 230601
  2. 合肥工业大学汽车与交通工程学院合肥 230601
- 作者简介：
  
  Zhang Qin， female， associate professor， Faculty of Intelligent Transportation， Anhui Sanlian University， 86-551-63839386， E-mail： zq022005@mail.slu.edu.cn. Research fields： thermal management technology for power batteries and energy storage.
- 基金信息：
  
  the National Natural Science Foundation of China(52305254)
- DOI：10.12465/issn.0253-4339.20260804002
  CLC： TB61⁺1;TM912;U469.72
- Received：04 August 2026，
  
  Revised：2026-08-23，
  
  Accepted：25 August 2026，
  
  Online First：15 September 2026，
- 稿件说明：
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张芹，余钰洋，霍新涛. 动力电池包在高环境温度下的快充和制冷策略研究［J］. 制冷学报，XXXX，XX（XX）：1-8.

Zhang Qin，Yu Yuyang，Huo Xintao. Study on Fast Charging and Cooling Strategies for Power Battery Packs under High Ambient Temperatures［J］. Journal of Refrigeration，XXXX，XX（XX）：1-8.
张芹，余钰洋，霍新涛. 动力电池包在高环境温度下的快充和制冷策略研究［J］. 制冷学报，XXXX，XX（XX）：1-8. DOI： 10.12465/issn.0253-4339.20260804002.

Zhang Qin，Yu Yuyang，Huo Xintao. Study on Fast Charging and Cooling Strategies for Power Battery Packs under High Ambient Temperatures［J］. Journal of Refrigeration，XXXX，XX（XX）：1-8. DOI： 10.12465/issn.0253-4339.20260804002.

摘要

本文提出了一种适用于电动汽车在高环境温度下进行充电的快充和制冷策略。通过电芯温度和SOC共同调节充电电流，旨在发挥电芯的最大充电能力。以容量为119 Ah的锂电池组成的1P108S电池包为研究对象，通过HPPC测试建立电芯的发热模型。充电过程中借助冷却系统降低电池温度，分析了不同冷却策略对充电性能的影响。研究结果表明：冷却液流量为12 L/min，冷却液温度为22 ℃时，液冷系统具有最佳的传热效率。为保证电芯不超温，在48 ℃时对电芯充电倍率进行了限制，优化后的策略电池最高温度为49.2 ℃，充电时长为2 654 s。最后，通过电池包充电实验验证数值模型，其最高温度和最大温差的误差均在5%以内。

Abstract

This study proposes a fast-charging and cooling strategy suitable for charging electric vehicles under high ambient temperatures. By jointly regulating the charging current based on cell temperature and state of charge （SOC）， this strategy aims to maximize the charging capacity of cells. A 1P108S battery pack composed of lithium-ion cells with a rated capacity of 119 Ah was used， and the heat generation model for the cell was established through Hybrid Pulse Power Characterization （HPPC） testing. During the charging process， the cooling system was utilized to mitigate battery temperature rise， and the effects of different cooling strategies on charging performance were systematically analyzed. The results indicate that the liquid cooling system achieved optimal heat transfer efficiency when the coolant flow rate was 12 L/min and coolant temperature was 22 ℃. To prevent the cells from overheating， the charging rate was limited when the cell temperature reached 48 ℃. Under the optimized strategy， the maximum battery temperature was 49.2 ℃ and charging duration was 2 654 s. Finally， the numerical model was validated through battery pack charging experiments， with deviations in the maximum temperature and maximum temperature difference both within 5%.

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references

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