Testing

In Chapter 38.3, the main changes in the new version are as follows:

1. Add sodium-ion battery testing terms;

2. Modified the test requirements for integrated battery packs:

For an integrated battery pack not equipped with overcharge protection, if it is designed for use only as a component of another battery, device or vehicle that is provided with overcharge protection:

- Overcharge protection needs to be verified in other batteries, devices or vehicles;

-Charging systems without overcharge protection must be protected from use by a physical system or program control.

Comparison of test differences between sodium-ion batteries and lithium-ion batteries:

(1) Sodium-ion batteries do not need to undergo T.8 forced discharge test;

(2) For sodium-ion batteries or sodium-ion single-cell batteries, the batteries are fully charged during the T.6 squeeze/impact test.

Sodium battery UN38.3 test standard sample delivery requirements:

●Single cell: 20 pcs

●Single-cell battery: 18 batteries, 10 cells

●Small battery pack (≤12Kg): 16 batteries, 10 cells

●Large battery pack (>12Kg): 8 batteries, 10 cells

Link to the original announcement:

https://unece.org/transport/standards/transport/dangerous-goods/un-manual-tests-and-criteria-rev8-2023