EN 61960:2004

SLOVENSKI SIST EN 61960:2004
STANDARD
september 2004
Secondary cells and batteries containing alkaline or other non-acid electrolytes -
Secondary lithium cells and batteries for portable applications
ICS 29.220.30 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD EN 61960
NORME EUROPÉENNE
EUROPÄISCHE NORM June 2004
ICS 29.220.99 Partially supersedes EN 61960-1:2001 & EN 61960-2:2001

English version
Secondary cells and batteries containing alkaline
or other non-acid electrolytes –
Secondary lithium cells and batteries for portable applications
(IEC 61960:2003)
Accumulateurs alcalins et autres Akkumulatoren und Batterien
accumulateurs à électrolyte non acide – mit alkalischem oder anderen
Eléments et batteries d'accumulateurs nichtsäurehaltigen Elektrolyten –
au lithium pour applications portables Lithium-Akkumulatoren und -batterien
(CEI 61960:2003) für tragbare Geräte
(IEC 61960:2003)
This European Standard was approved by CENELEC on 2004-03-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2004 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.

Ref. No. EN 61960:2004 E
Foreword
The text of document 21A/391/FDIS, future edition 1 of IEC 61960, prepared by SC 21A, Secondary
cells and batteries containing alkaline or other non-acid electrolytes, of IEC TC 21, Secondary cells
and batteries, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 61960 on 2004-03-01.
This European Standard, together with EN 61959:2004 and EN 62133:2003, supersedes
EN 61960-1:2001 and EN 61960-2:2001.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2004-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2007-03-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61960:2003 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 61434:1996 (not modified).
IEC 61959 NOTE  Harmonized as EN 61959:2004 (not modified).
IEC 62133 NOTE  Harmonized as EN 62133:2003 (not modified).
__________
- 3 - EN 61960:2004
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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 Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
1)
IEC 60050-486 – International Electrotechnical Vocabulary – –
(IEV)
Chapter 486: Secondary cells and
batteries
IEC 60051-1 Series Direct acting indicating analogue EN 60051-1 Series
electrical measuring instruments and their
accessories
Part 1: Definitions and general
requirements common to all parts

1)
IEC 60485 – Digital electronic d.c. voltmeters and d.c. – –
electronic analogue-to-digital converters

1)
2)
IEC 61000-4-2 – Electromagnetic compatibility (EMC) EN 61000-4-2 1995
Part 4-2: Testing and measurement
techniques - Electrostatic discharge
immunity test
1)
undated reference.
2)
valid edition at date of issue.

NORME CEI
INTERNATIONALE IEC
INTERNATIONAL
Première édition
STANDARD
First edition
2003-12
Accumulateurs alcalins et autres accumulateurs
à électrolyte non acide –
Eléments et batteries d'accumulateurs
au lithium pour applications portables
Secondary cells and batteries containing
alkaline or other non-acid electrolytes –
Secondary lithium cells and batteries
for portable applications
© IEC 2003 Droits de reproduction réservés ⎯ Copyright - all rights reserved
Aucune partie de cette publication ne peut être reproduite ni No part of this publication may be reproduced or utilized in any
utilisée sous quelque forme que ce soit et par aucun procédé, form or by any means, electronic or mechanical, including
électronique ou mécanique, y compris la photocopie et les photocopying and microfilm, without permission in writing from
microfilms, sans l'accord écrit de l'éditeur. the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
CODE PRIX
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PRICE CODE
Pour prix, voir catalogue en vigueur
For price, see current catalogue

61960 © IEC:2003 – 3 –
CONTENTS
FOREWORD.5
1 Scope.9
2 Normative references.9
3 Terms and definitions .11
4 Parameter measurement tolerances.13
5 Designation and marking .13
5.1 Cell and battery designation.13
5.2 Cell or battery termination.15
5.3 Marking.15
6 Standard cells.17
7 Electrical tests.17
7.1 Charging procedure for test purposes .17
7.2 Discharge performance.17
7.2.1 Discharge performance at 20 °C (rated capacity).17
7.2.2 Discharge performance at –20 °C .19
7.2.3 High rate discharge performance at 20 °C .19
7.3 Charge (capacity) retention and recovery .19
7.4 Charge (capacity) recovery after long term storage .21
7.5 Endurance in cycles.21
7.6 Battery internal resistance .23
7.6.1 Measurement of the internal a.c. resistance .23
7.6.2 Measurement of the internal d.c. resistance .25
7.7 Electrostatic discharge (ESD) .25
7.7.1 Test procedure.25
7.7.2 Acceptance criterion.25
8 Test protocol and conditions for type approval.25
8.1 Test protocol.25
8.2 Conditions for type approval.27
8.2.1 Dimensions.27
8.2.2 Electrical tests.27
8.2.3 Conditional type approval.27
Bibliography .33

61960 © IEC:2003 – 5 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SECONDARY CELLS AND BATTERIES CONTAINING
ALKALINE OR OTHER NON-ACID ELECTROLYTES –
SECONDARY LITHIUM CELLS AND BATTERIES
FOR PORTABLE APPLICATIONS
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 the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 61960 has been prepared by subcommittee 21A: Secondary cells
and batteries containing alkaline or other non-acid electrolytes, of IEC technical committee 21:
Secondary cells and batteries.
The text of this standard is based on the following documents:
FDIS Report on voting
21A/391/FDIS 21A/396/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

61960 © IEC:2003 – 7 –
The committee has decided that the content of this publication will remain unchanged until
2008. At this date the publication will be
• reconfirmed;
• withdrawn;
• replaced by a revised edition, or
• amended
61960 © IEC:2003 – 9 –
SECONDARY CELLS AND BATTERIES CONTAINING
ALKALINE OR OTHER NON-ACID ELECTROLYTES –
SECONDARY LITHIUM CELLS AND BATTERIES
FOR PORTABLE APPLICATIONS
1 Scope
This International Standard specifies performan
...