IEC 62984-3:20 20规定了移动和/或固定使用且额定电压不超过1 500 V的基于钠的高温电池的性能要求和测试程序。 钠基电池包括钠-硫电池和钠-氯化镍电池；两者都是高温电池，使用固体钠导电电解质。关于钠基电池技术、化学成分和结构的更多信息见附录B。 本文件不涵盖IEC 60952（所有部件）涵盖的飞机电池和IEC 61982（所有部件）涵盖的电动道路车辆推进用电池。

IEC 62984-3:2020 specifies performance requirements and test procedures for high--temperature batteries based on sodium for mobile and/or stationary use and whose rated voltage does not exceed 1 500 V.
Sodium based batteries include sodium-sulphur batteries and sodium-nickel chloride batteries; both are high-temperature batteries and use a solid, sodium conducting electrolyte. Additional information on sodium-based batteries technology, their chemistries and construction are given in Annex B.
This document does not cover aircraft batteries, covered by IEC 60952 (all parts), and batteries for the propulsion of electric road vehicles, covered by IEC 61982 (all parts).