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首页> 外文会议>North American Thermal Analysis Society conference >Heat Transfer for Large Scale Lithium-ion Batteries Module by Triggering Thermal Runaway
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Heat Transfer for Large Scale Lithium-ion Batteries Module by Triggering Thermal Runaway

机译：通过触发热失控为大型锂离子电池模块传热

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Lithium-ion batteries (LIBs) are widely used in our daily lives. The applications, such as in electric vehicles, hybrid electric vehicles, and new conceptions of power stations, require high power for operation. Therefore, high energy density for large scale LIBs to achieve convenient operational conditions is definitely an urgent need. However, with the improvement of energy, the accompanying safety problems cannot be ignored. In this study, six LIBs were set as 2×3 matrix, different compartments were placed between each LIB for insulation. Single cell of matrix was heated by heating rate of 5 C/min to trigger an internal short circuit. Thirty thermocouples and wires were set on each LIB for tracking on temperature and voltage. The 2D heat flux field was constructed based on the temperature data combined with infrared thermal imaging camera. The heat accumulation for large scale LIBs will cause damage to the adjacent LIBs besides triggering the LIB without the compartment. Herein, we can learn about the impact of heat transfer on LIBs safety and the importance of thermal risk management.
机译：锂离子电池（LIB）广泛应用于我们的日常生活中。诸如在电动车辆，混合动力电动车辆以及新的电站概念中的应用需要高功率来进行操作。因此，对于大型LIB而言，要实现便利的操作条件，高能量密度无疑是迫切需要的。然而，随着能量的提高，伴随的安全问题不容忽视。在这项研究中，将六个LIB设置为2×3矩阵，每个LIB之间放置了不同的隔层以进行绝缘。基质的单电池以5 C / min的加热速率加热以触发内部短路。每个LIB上设置了30条热电偶和电线，用于跟踪温度和电压。基于温度数据并结合红外热像仪构建了二维热通量场。大型LIB的热量积聚除了触发没有隔间的LIB以外，还会损坏相邻的LIB。在这里，我们可以了解传热对LIBs安全的影响以及热风险管理的重要性。

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