The microchannel heat sink is an effective technology for the thermal management of Li‐ion batteries. The overall performance of two heat sinks with improved thermal management of Li‐ion batteries was determined by a numerical simulation model. A manifold microchannel heat sink (MMC) and a traditional microchannel heat sink (TMC) with different aspect ratios of microchannels were developed. Thermal transfer performance and pressure drop characteristics of two heat sinks were compared by Fluent. Results indicate that the temperature uniformity of the TMC is worse than that of the MMC. The total pressure drop of TMC is significantly higher as compared to that of the MMC. Consequently, the MMC has a better overall performance than the TMC.

中文翻译：

---

锂离子电池中用于热管理的歧管微通道散热器的数值模拟

微通道散热器是用于锂离子电池热管理的有效技术。通过数值模拟模型确定了两个具有改善的锂离子电池热管理性能的散热器的整体性能。开发了具有不同微通道纵横比的歧管微通道散热器（MMC）和传统微通道散热器（TMC）。通过Fluent比较了两个散热器的热传递性能和压降特性。结果表明，TMC的温度均匀性比MMC差。与MMC相比，TMC的总压降明显更高。因此，MMC具有比TMC更好的总体性能。