钛酸锂电池在地铁车辆中的应用研究

Application of lithium titanate battery in metro vehicle

以昆明地铁5号线车辆为例,对车辆紧急负载供电和基地内牵引工况所需电池容量进行计算,并提出钛酸锂电池作为车辆辅助电源的设计方案。针对钛酸锂电池浮充工况进行模拟试验,分析电池的容量状态,建立了电池容量特性参数随电池浮充使用的变化规律,确定了电池容量变化机理。

Taking Kunming Metro Line 5 vehicle as an example,this paper calculates the battery capacity for the vehicle emergency load power supply and the traction in base,and puts forward the design scheme of lithium titanate battery as the vehicle auxiliary power supply.The simulation test is carried out according to the floating charging condition of lithium titanate battery.By analyzing the capacity state of the battery,the variation rule of battery capacity characteristic parameters with floating charge is established,and the battery capacity change mechanism is determined.