Scholarlink

<p>A lithium-ion battery is an efficient and reliable energy storage device used as a power source in electric vehicles. If the battery temperature rises beyond the optimal operating range (25–40&#xa0;°C), various problems such as thermal runaway and non-uniform temperature distribution occur, which degrade the battery’s performance. To prevent these issues, improve safety in EVs, and extend the battery’s lifespan, an effective cooling method is essential. Techniques like air cooling, phase change material cooling, direct and indirect liquid cooling, refrigerant cooling, and thermoelectric cooling are among the different battery thermal management technologies. Each method has its merits and demerits. Air-cooled BTMS offer benefits such as simple construction and lightweight design, but their performance is limited by poor thermal conductivity and heat capacity. This work explores the factors affecting the cooling performance of air cooling and helium gas cooling. Helium, having higher thermal conductivity than air, can be an effective coolant for controlling battery pack heat. In both air cooling and helium gas cooling, the average temperature of the battery module decreases by 3.15 and 9.14&#xa0;°C, respectively, compared to no cooling. At higher discharge rates, such as 5<i>C</i>, helium gas cooling outperforms air cooling, reducing the average temperature of all cells by 12.96%.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Numerical analysis of cooling techniques for lithium-ion batteries used in electric and hybrid vehicles

  • 期刊论文

  • 发表日期：

    2025年11月7日

查看全文
  • Pravin D. Sawarkar,
  • Someshwar S. Bhakre,
  • Nivrutti V. Potale

摘要

A lithium-ion battery is an efficient and reliable energy storage device used as a power source in electric vehicles. If the battery temperature rises beyond the optimal operating range (25–40 °C), various problems such as thermal runaway and non-uniform temperature distribution occur, which degrade the battery’s performance. To prevent these issues, improve safety in EVs, and extend the battery’s lifespan, an effective cooling method is essential. Techniques like air cooling, phase change material cooling, direct and indirect liquid cooling, refrigerant cooling, and thermoelectric cooling are among the different battery thermal management technologies. Each method has its merits and demerits. Air-cooled BTMS offer benefits such as simple construction and lightweight design, but their performance is limited by poor thermal conductivity and heat capacity. This work explores the factors affecting the cooling performance of air cooling and helium gas cooling. Helium, having higher thermal conductivity than air, can be an effective coolant for controlling battery pack heat. In both air cooling and helium gas cooling, the average temperature of the battery module decreases by 3.15 and 9.14 °C, respectively, compared to no cooling. At higher discharge rates, such as 5C, helium gas cooling outperforms air cooling, reducing the average temperature of all cells by 12.96%.