Standardization Work Progress in
in the field of lithium-ion batteries, there is a sound lithium-ion battery standard system at home and abroad, covering all kinds of products, from batteries to modules and system levels. These standards raise the market access threshold for lithium-ion battery products and are of great significance for ensuring consumer safety. However, in the field of sodium-ion batteries, standardization work is still in its early stages.
Domestic: The standard and project of sodium ion battery will be carried out with reference to the standardization system of lithium ion battery.
The industry standard "Sodium-ion Battery Terms and Vocabulary" and "Sodium-ion Battery Symbol and Nomenclature" have been established in July 2022, and a preliminary discussion meeting has been held;
• A number of group standards have been established, such as "General Specification for Sodium Ion Batteries and Battery Packs for Portable Devices", "General Specification for Sodium Ion Batteries and Battery Packs for Small Power Systems", "Safety Requirements for Transportation of Sodium Ion Batteries and Battery Packs", etc.
Abroad: Sodium ion transport regulations have been initially formulated, and the UL standard system has included sodium ion batteries in its scope.
-The United Nations Group on the Transport of Dangerous Goods (UN TDG) intends to assign a transport number and a transport name to sodium-ion batteries and to extend the scope of the Manual of Tests and Criteria-UN 38.3 chapter to sodium-ion batteries;
the ICAO Dangerous Goods Expert Group (ICAO DGP) has also published a new version of the draft Technical Notes (TI), including the requirements for sodium-ion batteries, which foreshadows the inclusion of sodium-ion batteries in the scope of air dangerous goods control in 2025 or 2026;
UL 1973:2022 has incorporated sodium ion batteries into the standard system. The test regulations for sodium ion batteries are the same as those for lithium ion batteries, and the test items in Appendix E are adopted.
Standard contents of
UL 1973-2022 is the North American Safety Standard for Stationary and Power Auxiliary Power Batteries, which defines sodium ion cells as being structurally similar to lithium ion cells, except that they use sodium as a transport ion. The cell cathode is composed of a sodium compound and the anode is composed of carbon or the like, having an aqueous or non-aqueous electrolyte and a sodium salt dissolved in the electrolyte. Such as Prussian blue cells or transition metal layered oxide cells.
The requirements of UL 1973 for sodium ion cells are the same as those for lithium ion cells, and both need to meet the requirements of Annex E. There are two test schemes available in Appendix E, E1-E9 and E10-E11.
