IEC 61960-3:2017

IEC 61960-3 ®
Edition 1.0 2017-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Secondary cells and batteries containing alkaline or other non-acid
electrolytes – Secondary lithium cells and batteries for portable applications –
Part 3: Prismatic and cylindrical lithium secondary cells, and batteries made
from them
Accumulateurs alcalins et autres accumulateurs à électrolyte non acide –
Accumulateurs au lithium pour applications portables –
Partie 3: Eléments et batteries d’accumulateurs au lithium, parallélépipédiques
et cylindriques
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé Fax: +41 22 919 03 00
CH-1211 Geneva 20 info@iec.ch
Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: csc@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 20 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 16
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.

Recherche de publications IEC - www.iec.ch/searchpub
Glossaire IEC - std.iec.ch/glossary
65 000 entrées terminologiques électrotechniques, en anglais
La recherche avancée permet de trouver des publications IEC
en utilisant différents critères (numéro de référence, texte, et en français, extraites des articles Termes et Définitions des
comité d’études,…). Elle donne aussi des informations sur les publications IEC parues depuis 2002. Plus certaines entrées
projets et les publications remplacées ou retirées. antérieures extraites des publications des CE 37, 77, 86 et

CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished

Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just
Published détaille les nouvelles publications parues. Si vous désirez nous donner des commentaires sur cette
Disponible en ligne et aussi une fois par mois par email. publication ou si vous avez des questions contactez-nous:
csc@iec.ch.
IEC 61960-3 ®
Edition1.0 2017-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Secondary cells and batteries containing alkaline or other non-acid

electrolytes – Secondary lithium cells and batteries for portable applications –

Part 3: Prismatic and cylindrical lithium secondary cells, and batteries made

from them
Accumulateurs alcalins et autres accumulateurs à électrolyte non acide –

Accumulateurs au lithium pour applications portables –

Partie 3: Eléments et batteries d’accumulateurs au lithium, parallélépipédiques

et cylindriques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220.99 ISBN 978-2-8322-3908-7

– 2 – IEC 61960-3:2017 © IEC 2017
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 7
3 Terms and definitions . 7
4 Parameter measurement tolerances . 8
5 Cell designation and marking . 8
5.1 Cell and battery designation . 8
5.2 Marking . 10
5.3 Providing the design and produce requirement of batteries . 10
6 Examples of cells . 10
7 Electrical tests . 11
7.1 General . 11
7.2 Charging procedure for test purposes . 12
7.3 Discharge performance . 12
7.3.1 Discharge performance at 20 °C (rated capacity) . 12
7.3.2 Discharge performance at –20 °C . 12
7.3.3 High rate discharge performance at 20 °C. 12
7.4 Charge (capacity) retention and recovery . 13
7.5 Charge (capacity) recovery after long term storage . 13
7.6 Endurance in cycles . 14
7.6.1 General. 14
7.6.2 Endurance in cycles at a rate of 0,2 I A . 14
t
7.6.3 Endurance in cycles at a rate of 0,5 I A (accelerated test procedure) . 14
t
7.7 Battery internal resistance . 14
7.7.1 General. 14
7.7.2 Measurement of the internal AC resistance . 15
7.7.3 Measurement of the internal DC resistance . 15
7.8 Electrostatic discharge (ESD) . 16
7.8.1 General. 16
7.8.2 Test procedure . 16
7.8.3 Acceptance criterion . 16
8 Test protocol and conditions for type approval . 16
8.1 Test protocol . 16
8.2 Conditions for type approval . 16
8.2.1 Dimensions . 16
8.2.2 Electrical tests . 16
8.2.3 Conditional type approval . 16
Annex A (informative) Dimensions of the cell with a laminate film case . 19
A.1 General . 19
A.2 Measuring method of cell thickness . 19
A.3 Measuring method of cell width . 19
Annex B (informative) Capacity after storage . 21
Bibliography . 22

Figure 1 – Sample sizes and sequence of tests . 17

Figure A.1 – Thickness measuring method . 20
Figure A.2 – Width measuring method . 20

Table 1 – Specification examples of secondary lithium cells for portable applications . 11
Table 2 – Examples of secondary lithium cells for portable applications . 11
Table 3 – Endurance in cycles at a rate of 0,2 I A . 14
t
Table 4 – Endurance in cycles at a rate of 0,5 I A . 14
t
Table 5 – Minimum requirements for each type of secondary lithium cells and batteries . 18
Table B.1 – Capacity after storage . 21

– 4 – IEC 61960-3:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SECONDARY CELLS AND BATTERIES CONTAINING ALKALINE
OR OTHER NON-ACID ELECTROLYTES – SECONDARY LITHIUM CELLS
AND BATTERIES FOR PORTABLE APPLICATIONS –

Part 3: Prismatic and cylindrical lithium secondary cells,
and batteries made from them
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between t
...