• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Heat and Mass Transfer >Efficient thermal management of the large-format pouch lithium-ion cell via the boiling-cooling system operated with intermittent flow
【24h】

Efficient thermal management of the large-format pouch lithium-ion cell via the boiling-cooling system operated with intermittent flow

机译：通过间歇流动的沸腾式冷却系统有效地热管理大型袋锂离子电池

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To manage the undesirable temperature spike and significant temperature gradient developed on the large-format lithium-ion cell, we propose and experimentally demonstrate a boiling-cooling thermal management system using NOVEC 7000 as coolant for a large-format 20-Ah LiFePO)4 lithium-ion cell. It shows that the boiling-cooling system delivers excellent capabilities in reducing maximum temperature and improving temperature uniformity under the static mode even for the 4C discharge process. To enable the boiling-cooling system a stable cooling performance during cyclic operations, the flow mode is explored. The maximum temperature is successfully controlled over cycles but a large temperature difference between regions near cell bottom and tabs is observed, especially at high flow rates. To resolve issues of the static and flow modes, the intermittent flow mode is finally conceived for the boiling-cooling system, with which the temperature spike and maximum temperature difference are controlled to be less than 36 °C and 2 °C at 2C operation. Such an impressive cooling performance, combined with the substantially low pumping work, suggests that efficient thermal management of large-format lithium-ion cells can be achieved by the boiling cooling system operated with an intermittent flow mode, which takes full advantage of the large latent heat absorbed and the high heat transfer coefficient during the boiling process.
机译：为了管理在大型锂离子电池上产生的不希望的温度尖峰和显着的温度梯度，我们提出并通过实验证明了使用Novec 7000作为冷却剂的沸腾冷却热管理系统，以获得大型20-αHivepo）4锂-ion细胞。结果表明，即使对于4C放电过程，沸腾式冷却系统在降低最高温度和改善静态模式下提高温度均匀性也会提供出色的能力。为了使沸腾式冷却系统能够在循环操作期间稳定的冷却性能，探索流动模式。最高温度在循环上成功控制，但观察到电池底部和突片附近的区域之间的大温差，尤其是高流速。为了解决静态和流动模式的问题，最终将间歇流动模式构思为沸腾冷却系统，在2C操作时控制温度尖峰和最大温度差异小于36°C和2°C。这种令人印象深刻的冷却性能与大幅低的泵送工作相结合，表明大型锂离子电池的有效热管理可以通过用间歇流动模式操作的沸腾冷却系统来实现，这充分利用了大潜伏沸腾过程中的热吸收和高传热系数。

著录项

  • 来源
    《International Journal of Heat and Mass Transfer》 |2021年第5期|121018.1-121018.11|共11页
  • 作者

    Nan Wu; Xiaolin Ye; Jiangxiao Yao; Xiao Zhang; Xuelong Zhou; Bin Yu;

  • 作者单位

    Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials College of Chemistry and Environmental Engineering Shenzhen University Shenzhen People's Republic of China Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic Engineering Shenzhen University Shenzhen People's Republic of China;

    Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials College of Chemistry and Environmental Engineering Shenzhen University Shenzhen People's Republic of China;

    Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials College of Chemistry and Environmental Engineering Shenzhen University Shenzhen People's Republic of China;

    Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials College of Chemistry and Environmental Engineering Shenzhen University Shenzhen People's Republic of China;

    Shenzhen Key Laboratory of New Lithium-ion Batteries and Mesoporous Materials College of Chemistry and Environmental Engineering Shenzhen University Shenzhen People's Republic of China;

    Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Optoelectronic Engineering Shenzhen University Shenzhen People's Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Battery thermal management; Large-format pouch cell; Temperature gradient; Boiling-cooling; Intermittent flow;

    机译：电池热管理;大幅袋细胞;温度梯度;沸腾冷却;间歇性流动;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号