Battery Management System and Active Thermal Control of Aircraft Batteries for Aerospace Applications in Cold Temperature

电池在电动和混合动力汽车中已经使用了十多年，全球范围内的使用量正在增加，包括航空航天部门。锂离子电池是温度敏感设备，这为加拿大天气下长达一年的运行增加了挑战，特别是对要求严格的航空航天部门。低温操作会降低电池容量，降低最大可用功率，并导致过早老化。高温操作会造成热失控和永久性故障的风险，并缩短电池寿命。需要改进热监测和热管理，以支持运输方式的电气化，特别是在航空航天部门。Calogy、三星多视镜、舍布鲁克大学(2名教授)和巴黎高等技术学院(2名教授)之间的合作伙伴关系是支持这一下一代电池热管理系统开发的理想选择。Calogy拥有独特的热接地平面(TGP)技术，可以主动控制电池组内的导热系数，并利用相变材料(从液体到气体)与基于热管的环境相结合。ETS的研究人员将在三峡工程上开发印刷温度传感器阵列，以加强温度监测。最后，舍布鲁克的研究人员将优化电池组，并在大数据集上使用人工智能算法来识别操作中的潜在故障。三星公司使用锂离子电池的用于寒冷气候的小型无人机将成为该技术的完美测试案例，计划在飞行中进行演示。这种新的电池包装将在低温下表现出更好的性能，并在飞机寿命内改善老化特性。

Batteries have been used in electric and hybrid electric vehicles for more than a decade, and worldwide utilization is increasing, including the aerospace sector. Lithium-ion batteries are temperature-sensitive devices, which adds a challenge for year-long operation in Canadian weather especially for the aerospace sector with stringent requirements. Low temperature operation reduces the battery capacity, reduces the maximum power available, and induces premature aging. High temperature operation creates a risk of thermal runaway and permanent failure, and reduces battery lifespan. An improvement in both thermal monitoring and thermal management is required in support to the electrification of transportation modes, especially in the aerospace sector. The partnership between Calogy, TriStar Multicopters, the Université de Sherbrooke (2 professors) and the École de technologie supérieure (2 professors) is ideal to support the development of this next generation of battery thermal management system. Calogy owns a unique thermal ground plane (TGP) technology to actively control the thermal conductivity within the battery pack and with the environment based on heat pipes using phase changing materials (liquid to gas). ETS' researchers will develop arrays of printed thermal sensors on the TGP to enhance the thermal monitoring. Finally, Sherbrooke's researchers will optimize the battery pack and use artificial intelligence algorithm on the large data set to identify potential failures in operation. TriStar' small-scale drone for cold climate using lithium-ion battery will serve as a perfect test case for the technology, where in-flight demonstrations are planned. This new battery packaging will demonstrate both an improved performance at cold temperature and improved aging characteristics over the aircraft lifetime.