IEC 62660-3:2016

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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