Junxiong Zeng's scientific contributions

The present study on battery thermal management performance is mainly based on the research conducted in a single-pack environment, without considering the impact of the vehicle driving environment on the thermal performance of the power battery. Therefore, this paper conducts a research on the thermal management performance of the power battery and considers the effect of heat exchange under the driving conditions of the whole vehicle. In addition, the ohmic heat generation method of a battery pack in the process of charging and dis-charging is established in this paper. The complete heat exchange condition of a liquid cooling power battery is obtained and the research of thermal management performance is carried out. The results indicated that the tested temperature values at sensor NTC position are in good agreement with the predicted data. The maximum temperature deviation between numerical results and experiment data at the same temperature sensor (NTC) position is 1.4 °C, which demonstrates that the prediction accuracy of numerical simulation methods adopted in this paper is significantly high.

With the development of new energy vehicles, thermal management of power batteries has become a hot research topic. Power battery thermal management has a very important impact on battery life, safety, charging, and other performance. In this paper, the heat transfer performance of a cooling process is studied by establishing a three-dimensional thermal management model of power battery. The results showed that the proportion of heat in the battery taken directly from the coolant was 91.6%, and the proportion of heat absorbed and dissipated into the environment by the components outside the cell by heat transfer and so on was 8.6%.