電池2枚同時短絡状態における電気自動車用冷却システムの伝熱解析

抄録

Lithium-ion batteries (LiB) installed in electric vehicles have advantages such as large energy density and being environmentally friendly. However, it is said that the danger of ignition and explosion occurs due to rapid temperature rise by causing thermal runaway. Therefore, it is necessary to improve the thermal management technology for the LiB. In this study, simulation of simultaneous short circuit of two LiB cells was carried out using numerical model of a cooling system using phase change material (PCM) and heat pipes (HP), assuming simultaneous short circuit of multiple LiB cells. In addition, the contribution to cooling performance was investigated by using several phase change materials with different melting points, and the results are reported.