IEC 62973-5:2023适用于机车车辆辅助电源系统的锂离子电池。本文件规定了锂离子电池的特性和测试要求，并补充了适用于任何机车车辆类型（如轻轨车辆、有轨电车、有轨车、地铁、通勤列车、区域列车、高速列车、机车等）的IEC 62973-1。本文件规定了电池系统（包括BMS）和转换器之间的接口要求。本文件与工业应用中使用的锂离子电池和电池的通用IEC 62619（安全要求）和IEC 62620（性能要求）结合使用。本文件规定了铁路机车车辆应用的要求。

IEC 62973-5:2023 applies to lithium-ion batteries for auxiliary power supply systems used on rolling stock. This document specifies the requirements of the characteristics and tests for the lithium-ion cells, and supplements IEC 62973-1 which is applied to any rolling stock types (e.g. light rail vehicles, tramways, streetcars, metros, commuter trains, regional trains, high speed trains, locomotives, etc.). This document specifies the requirements of the interface between battery system including BMS and the converter. This document is used in conjunction with generic IEC 62619 (safety requirements) and IEC 62620 (performance requirements) of lithium-ion cells and batteries used in industrial applications. This document specifies the requirements for railway rolling stock applications.