CEN/TC 301/WG 18 - Electric vehicles batteries

This document describes steps, conditions and protocols for safe maintenance and repair to facilitate remanufacturing, re-use and preparation for repurposing of battery systems, battery packs and battery modules designed for EV applications for alkali-ion (Li-ion, Na-ion), Pb, NiMH and combined chemistries.
This document also includes an informative guidance on design and assembly techniques that facilitate the maintenance, repair, re-use and preparation for repurposing a of EV battery systems, battery packs and battery modules (Annex B).
NOTE   Individual cell is replaced when it is allowed and described by the EV battery systems, battery packs and battery modules manufacturer. In this case, battery modules manufacturer provides the necessary instructions for cell replacement.

The standard shall describe the necessary steps and conditions for the measurement of the parameters, which are relevant for rechargeable batteries with internal energy storage used for road vehicles. The parameters shall reflect current industry practice for the applications based on existing international standards. The standard shall consider the most appropriate metric based on application and the objective of the metric to enable comparison of electrical performance between different models/products on the market. It shall in particular take into account the following:
- rated capacity (in Ah);
- rated power (in W);
- internal resistance (in ꭥ);
- energy round trip efficiency (in %).
The measurement tests of the standard shall be relevant for batteries, battery packs, and battery modules intended for the following applications:
- motor vehicles, including M and N categories referred to in Article 2 of Regulation (EU) 2018/858 of the European Parliament and of the Council with traction battery;
- L-category vehicles referred to in Article 2 of Regulation EU 168/2013 of the European Parliament and of the Council with traction battery of more than 25kg.