EN IEC 62660-3:2022

Secondary lithium-ion cells for the propulsion of electric road vehicles - Part 3: Safety requirements

This part of IEC 62660 specifies test procedures and acceptance criteria for safety performance of secondary lithium-ion cells and cell blocks used for propulsion of electric vehicles (EV) including battery electric vehicles (BEV) and hybrid electric vehicles (HEV). This document determines the basic safety performance of cells used in a battery pack and system under intended use and reasonably foreseeable misuse or incident, during the normal operation of the EV. The safety requirements of the cell in this document are based on the premise that the cells are properly used in a battery pack and system within the limits for voltage, current and temperature as specified by the cell manufacturer (cell operating region). The evaluation of the safety of cells during transport and storage is not covered by this document. NOTE 1 The safety performance requirements for lithium-ion battery packs and systems are defined in ISO 6469‑1. The specifications and safety requirements for lithium-ion battery packs and systems of electrically propelled mopeds and motorcycles are defined in ISO 18243. IEC 62619 covers the safety requirements for the lithium-ion cells and batteries for industrial applications, including, for example, forklift trucks, golf carts, and automated guided vehicles. NOTE 2 Lithium cells, modules, battery packs, and battery systems are regulated by International Air Transport Association (IATA) and International Maritime Organization (IMO) for air and sea transport, and, regionally, by other authorities, mainly for land transport. Refer to IEC 62281 for additional information.

Lithium-Ionen-Sekundärzellen für den Antrieb von Elektrostraßenfahrzeugen - Teil 3: Sicherheitsanforderungen

Eléments d'accumulateurs lithium-ion pour la propulsion des véhicules routiers électriques - Partie 3: Exigences de sécurité

IEC 62660-3:2022 est disponible sous forme de IEC 62660-3:2022 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 62660-3:2022 spécifie les procédures d'essai et les critères d'acceptation en matière de performance de sécurité des éléments d'accumulateurs lithium-ion et des blocs d'éléments utilisés pour la propulsion des véhicules électriques (VE), y compris les véhicules électriques à batterie (VEB) et les véhicules électriques hybrides (VEH). Le présent document a pour objet de déterminer les performances de sécurité de base des éléments utilisés dans un groupe et système de batteries dans les conditions d'utilisation prévue et les mauvaises utilisations ou incidents raisonnablement prévisibles, pendant le fonctionnement normal du VE. Dans le présent document, les exigences de sécurité de l'élément s'appuient sur l'hypothèse selon laquelle les éléments sont correctement utilisés dans un groupe et système de batteries dans les limites de tension, de courant et de température spécifiées par le fabricant de l'élément (plage de fonctionnement de l'élément).

Sekundarni litij-ionski členi za pogon električnih cestnih vozil - 3. del: Varnostne zahteve

Ta del standarda IEC 62660 določa preskusne postopke in merila sprejemljivosti za varnostne lastnosti sekundarnih litij-ionskih členov in blokov členov, ki se uporabljajo za pogon električnih vozil (EV), vključno z električnimi akumulatorskimi vozili (BEV) ali hibridnimi električnimi vozili (HEV).
Ta dokument je namenjen za določanje osnovnih varnostnih lastnosti členov v akumulatorju in sistemu v skladu s predvideno uporabo ter pričakovano nepravilno uporabo ali incidentom pri običajnem delovanju električnih vozil. Varnostne zahteve za člen v tem dokumentu temeljijo na predpostavki, da se členi pravilno uporabljajo v akumulatorju ter sistemu znotraj napetostnih, tokovnih in temperaturnih omejitev, ki jih določi proizvajalec členov (območje delovanja členov).
Ta dokument ne vključuje ocene varnosti za člene med prevozom in skladiščenjem.
OPOMBA 1: Varnostne zahteve glede zmogljivosti litij-ionskih akumulatorjev in sistemov so opredeljene v standardu ISO 6469-1. Specifikacije in varnostne zahteve za litij-ionske akumulatorje ter sisteme električno gnanih mopedov in motornih koles so opredeljene v standardu ISO 18243. IEC 62619 zajema varnostne zahteve za litij-ionske člene in akumulatorje za industrijsko uporabo, vključno z viličarji, vozički za golf in avtomatsko vodenimi vozili.
OPOMBA 2: Informacije o območju delovanja členov so podane v dodatku A.

General Information

• Status: Published
• Publication Date: 14-Apr-2022
• ICS: 29.220.20 - Acid secondary cells and batteries
• ICS: 43.120 - Electric road vehicles
• Technical Committee: CLC/TC 21X - Secondary cells and batteries
• Drafting Committee: IEC/TC 21 - IEC_TC_21
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 15-Apr-2022
• Completion Date: 15-Apr-2022
• Ref Project: SIST EN IEC 62660-3:2022 - Secondary lithium-ion cells for the propulsion of electric road vehicles - Part 3: Safety requirements

Relations

• Replaces: EN 62660-3:2016 - Secondary lithium-ion cells for the propulsion of electric road vehicles - Part 3: Safety requirements
• Effective Date: 19-Apr-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-junij-2022
Nadomešča:
SIST EN 62660-3:2017
Sekundarni litij-ionski členi za pogon električnih cestnih vozil - 3. del: Varnostne
zahteve
Secondary lithium-ion cells for the propulsion of electric road vehicles - Part 3: Safety
requirements
Lithium-Ionen-Sekundärzellen für den Antrieb von Elektrostraßenfahrzeugen - Teil 3:
Sicherheitsanforderungen
Eléments d'accumulateurs lithium-ion pour la propulsion des véhicules routiers
électriques - Partie 3: Exigences de sécurité
Ta slovenski standard je istoveten z: EN IEC 62660-3:2022
ICS:
29.220.20 Kislinski sekundarni členi in Acid secondary cells and
baterije batteries
43.120 Električna cestna vozila Electric road vehicles
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62660-3

NORME EUROPÉENNE
EUROPÄISCHE NORM April 2022
ICS 29.220.20; 43.120 Supersedes EN 62660-3:2016 and all of its amendments
and corrigenda (if any)
English Version
Secondary lithium-ion cells for the propulsion of electric road
vehicles - Part 3: Safety requirements
(IEC 62660-3:2022)
Eléments d'accumulateurs lithium-ion pour la propulsion Lithium-Ionen-Sekundärzellen für den Antrieb von
des véhicules routiers électriques - Partie 3: Exigences de Elektrostraßenfahrzeugen - Teil 3:
sécurité Sicherheitsanforderungen
(IEC 62660-3:2022) (IEC 62660-3:2022)
This European Standard was approved by CENELEC on 2022-04-05. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62660-3:2022 E

European foreword
The text of document 21/1133/FDIS, future edition 2 of IEC 62660-3, prepared by IEC/TC 21
"Secondary cells and batteries" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN IEC 62660-3:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-01-05
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-04-05
document have to be withdrawn
This document supersedes EN 62660-3:2016 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62660-3:2022 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 61434 NOTE Harmonized as EN 61434
IEC 62133-2 NOTE Harmonized as EN 62133-2
IEC 62660-1 NOTE Harmonized as EN IEC 62660-1
ISO 18243 NOTE Harmonized as EN ISO 18243
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments)
applies.
NOTE 1  Where an International Publication has been modified by common modifications, indicated by (mod),
the relevant EN/HD applies.
NOTE 2  Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cenelec.eu.
Publication Year Title EN/HD Year
1 2
IEC 62619 — Secondary cells and batteries containing EN IEC 62619 —
alkaline or other non-acid electrolytes -
Safety requirements for secondary lithium
cells and batteries, for use in industrial
applications
IEC 62660-2 2018 Secondary lithium-ion cells for the propulsion EN IEC 62660-2 2019
of electric road vehicles - Part 2: Reliability
and abuse testing
ISO/TR 8713 - Electrically propelled road vehicles - - -
Vocabulary
Second edition under preparation. Stage at the time of publication: IEC FDIS 62619:2021.
Under preparation. Stage at the time of publication: FprEN IEC 62619:2021.
IEC 62660-3 ®
Edition 2.0 2022-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Secondary lithium-ion cells for the propulsion of electric road vehicles –

Part 3: Safety requirements
Éléments d’accumulateurs lithium-ion pour la propulsion des véhicules routiers

électriques –
Partie 3: Exigences de sécurité

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220.20; 43.120 ISBN 978-2-8322-1083-3

– 2 – IEC 62660-3:2022 © IEC 2022
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Test conditions . 9
4.1 General . 9
4.2 Measuring instruments . 9
4.2.1 Range of measuring devices . 9
4.2.2 Voltage measurement . 9
4.2.3 Current measurement . 9
4.2.4 Temperature measurements . 9
4.2.5 Other measurements . 10
4.3 Tolerance . 10
4.4 Thermal stabilization . 10
5 Electrical measurement . 10
5.1 General charge conditions . 10
5.2 Capacity . 11
5.3 SOC adjustment . 11
6 Safety tests . 11
6.1 General . 11
6.2 Mechanical tests . 12
6.2.1 Mechanical shock . 12
6.2.2 Crush . 12
6.3 Thermal test . 13
6.3.1 High temperature endurance. 13
6.3.2 Temperature cycling . 13
6.4 Electrical tests . 14
6.4.1 External short-circuit . 14
6.4.2 Overcharge . 14
6.4.3 Forced discharge . 14
6.4.4 Internal short-circuit test . 15
Annex A (informative) Operating region of cells for safe use . 17
A.1 General . 17
A.2 Charging conditions for safe use . 17
A.2.1 General . 17
A.2.2 Consideration on charging voltage . 17
A.2.3 Consideration on temperature . 18
A.3 Example of operating region . 19
Annex B (informative) Explanation for the internal short-circuit test . 20
B.1 General concept . 20
B.2 Internal short-circuit caused by the particle contamination . 20
Annex C (normative) Alternative internal short-circuit test (6.4.4.2.2) . 22
C.1 General . 22
C.2 Test preparation and test set-up . 22
C.2.1 Preparation of cell before the test . 22

IEC 62660-3:2022 © IEC 2022 – 3 –
C.2.2 Test setup . 24
C.2.3 Preliminary test . 25
C.3 Test procedure . 26
C.4 Acceptance criteria . 26
Bibliography . 27

Figure 1 – Example of temperature measurement of cell . 10
Figure 2 – Example of crush test . 13
Figure A.1 – An example of operating region for charging of typical lithium-ion cells . 19
Figure A.2 – An example of operating region for discharging of typical lithium-ion cells . 19
Figure C.1 – Example of case thinning . 22
Figure C.2 – Example of thinning tool . 23
Figure C.3 – Example of removing hard case . 23
Figure C.4 – Example of hard case removal method during cell manufacturing . 23
Figure C.5 – Example of fixation of cell . 24
Figure C.6 – Test setup image for voltage measurement . 24
Figure C.7 – Example of abrupt voltage drop .
...