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仪器网/ 行业应用/ 解决方案/ 用独特的微量热仪的方法来评价高能量电池A Unique Calor

用独特的微量热仪的方法来评价高能量电池A Unique Calor

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Battery thermal management is critical for high-power battery packs commonly used in electric vehicles (EV) and hybrid electric
vehicles (HEV). To design battery thermal management systems properly, obtaining accurate heat generation data from battery
modules is essential. To measure heat generation from full-size, multiple-cell battery modules, we developed and tested a custom-made
calorimeter for large modules. Battery modules with dimensions up to 21 cm x 39 cm in cross section and 20 cm in height can be
placed in the cavity of the calorimeter for measuring heat generation rates from 1 W to 100 W with the battery operating at -30(C to
+60(C. The instrument is capable of measuring heat effects as small as 10 joules with accuracy of 5%. A state-of-the-art high power
battery cycler is used to cycle the modules in the calorimeter. This paper provides a description of the calorimeter, calibration test
results on its performance, and test results from a module simulating a HEV lead-acid battery.
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