+ANNEX IV

ANNEX IV



ANNEX IV

ELECTROCHEMICAL PERFORMANCE AND DURABILITY REQUIREMENTS FOR LMT BATTERIES, INDUSTRIAL BATTERIES WITH A CAPACITY GREATER THAN 2 KWH AND ELECTRIC VEHICLE BATTERIES

For the purposes of this Annex the following definitions apply:

(1) 

‘Rated capacity’ means the total number of ampere-hours (Ah) that can be withdrawn from a fully charged battery under reference conditions.

(2) 

‘Capacity fade’ means the decrease over time and upon usage in the amount of charge that a battery can deliver at the rated voltage, with respect to the original rated capacity.

(3) 

‘Power’ means the amount of energy that a battery is capable of providing over a given period under reference conditions.

(4) 

‘Power fade’ means the decrease over time and upon usage in the amount of power that a battery can deliver at the rated voltage.

(5) 

‘Internal resistance’ means the opposition to the flow of current within a cell or a battery under reference conditions, that is, the sum of electronic resistance and ionic resistance to the contribution to total effective resistance including inductive/capacitive properties.

(6) 

‘Energy round trip efficiency’ means the ratio of the net energy delivered by a battery during a discharge test to the total energy required to restore the initial state of charge by a standard charge.

Part A

Parameters related to electrochemical performance and durability

1. Rated capacity (in Ah) and capacity fade (in %).

2. Power (in W) and power fade (in %).

3. Internal resistance (in Ω) and internal resistance increase (in %).

4. Where applicable, energy round trip efficiency and its fade (in %).

5. The expected life-time of the battery under the reference conditions for which it has been designed, in terms of cycles, except for non-cycle applications, and calendar years.

Part B

Elements to explain the measurements for parameters listed in Part A

1. Applied discharge rate and charge rate.

2. Ratio between nominal battery power (W) and battery energy (Wh).

3. Depth of discharge in the cycle-life test.

4. Power capability at 80 % and 20 % state of charge.

5. Any calculations performed with the measured parameters, if applicable.

1. Overview

,

1.1 References

1.2 Identified Requirements

1.3 Related Standards

2. Identified Requirements

Requirements

3. Related Standards

Standards
  • Builddate: 13.08.2026 00:00:00 -Doknr: CELEX:32023R1542
  • EULAW -

    EN: Legal acts of the European Union from EUR-Lex, https://eur-lex.europa.eu/. © European Union. Re-use is authorised by Decision 2011/833/EU, provided the source is acknowledged; the consolidated texts are licensed under CC BY 4.0 (EUR-Lex legal notice). Divided into sections and converted into the GRCA format, the wording unchanged. Only the legislation published in the Official Journal of the European Union is deemed authentic.

    DE: Rechtsakte der Europäischen Union aus EUR-Lex, https://eur-lex.europa.eu/. © Europäische Union. Weiterverwendung nach Beschluss 2011/833/EU mit Quellenangabe gestattet; die konsolidierten Fassungen stehen unter CC BY 4.0 (Rechtlicher Hinweis von EUR-Lex). In Abschnitte aufgeteilt und in das GRCA-Format umgewandelt, der Wortlaut unverändert. Verbindlich sind allein die im Amtsblatt der Europäischen Union veröffentlichten Rechtsakte.