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

IEC 62660-3:2016 specifies test procedures and the acceptance criteria for safety performance of secondary lithium-ion cells and cell blocks used for the propulsion of electric vehicles (EV) including battery electric vehicles (BEV) and hybrid electric vehicles (HEV). This International Standard intends to determine 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 standard 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 standard.

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

L'IEC 62660-3:2016 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 (EV), y compris les véhicules électriques à batterie (BEV) et les véhicules électriques hybrides (HEV). La présente Norme internationale a pour objet de déterminer les performances de sécurité de base des éléments utilisés dans un bloc et système de batteries dans les conditions d'utilisation prévue et les utilisations abusives ou incidents raisonnablement prévisibles, pendant le fonctionnement normal de l'EV. Dans la présente norme, les exigences de sécurité de l'élément s'appuient sur l'hypothèse selon laquelle les éléments sont correctement utilisés dans un bloc 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). L'évaluation de la sécurité des éléments pendant le transport et le stockage n'est pas couverte par la présente norme.

General Information

Status
Published
Publication Date
28-Aug-2016
Current Stage
DELPUB - Deleted Publication
Start Date
31-Mar-2021
Completion Date
01-Mar-2022
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IEC 62660-3 ®
Edition 1.0 2016-08
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

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IEC 62660-3 ®
Edition 1.0 2016-08
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 978-2-8322-3576-8

– 2 – IEC 62660-3:2016 © IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references. 7
3 Terms and definitions . 8
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 . 10
4.2.3 Current measurement. 10
4.2.4 Temperature measurements . 10
4.2.5 Other measurements . 10
4.3 Tolerance. 10
4.4 Test temperature . 11
5 Electrical measurement . 11
5.1 General charge conditions . 11
5.2 Capacity . 11
5.3 SOC adjustment . 11
6 Safety tests . 12
6.1 General . 12
6.2 Mechanical tests . 12
6.2.1 Vibration . 12
6.2.2 Mechanical shock . 12
6.2.3 Crush . 13
6.3 Thermal test . 14
6.3.1 High temperature endurance . 14
6.3.2 Temperature cycling . 14
6.4 Electrical tests . 14
6.4.1 External short circuit . 14
6.4.2 Overcharge . 15
6.4.3 Forced discharge . 15
6.4.4 Internal short circuit test . 15
Annex A (informative) Operating region of cells for safe use . 18
A.1 General . 18
A.2 Charging conditions for safe use. 18
A.2.1 General . 18
A.2.2 Consideration on charging voltage . 18
A.2.3 Consideration on temperature . 19
A.3 Example of operating region . 19
Annex B (informative) Explanation for the internal short-circuit test . 22
B.1 General concept . 22
B.2 Internal short circuit caused by particle contamination . 22
Bibliography . 24

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 . 20
Figure A.2 – An example of operating region for discharging of typical lithium-ion cells . 21

Table B.1 – Examples of the internal short circuit of cell . 23

– 4 – IEC 62660-3:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SECONDARY LITHIUM-ION CELLS FOR THE PROPULSION
OF ELECTRIC ROAD VEHICLES –
Part 3: Safety requirements
FOREWORD
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