IEC 62485-1:2015

Safety requirements for secondary batteries and battery installations - Part 1: General safety information

IEC 62485-1:2015 specifies the basic requirements for secondary batteries and battery installations. The requirements regarding safety, reliability, life expectancy, mechanical strength, cycle stability, internal resistance, and battery temperature, are determined by various applications, and this, in turn, determines the selection of the battery design and technology. In general, the requirements and definitions are specified for lead-acid and nickel-cadmium batteries. For other battery systems with aqueous electrolyte, the requirements may be applied accordingly. The standard covers safety aspects taking into account hazards associated with:
- electricity (installation, charging, discharging, etc.);
- electrolyte;
- inflammable gas mixtures;
- storage and transportation.

Exigences de sécurité pour les batteries d'accumulateurs et les installations de batteries - Partie 1: Informations générales de sécurité

L'IEC 62485-1:2015 spécifie les exigences fondamentales des batteries d'accumulateurs et des installations de batteries. Les exigences relatives à la sécurité, la fiabilité, l'espérance de vie, la résistance mécanique, la stabilité du cyclage, la résistance interne et la température de batterie sont déterminées par diverses applications, et celles-ci à leur tour déterminent le choix de la conception et de la technologie des batteries. En général, les exigences et les définitions sont spécifiées pour des batteries au plomb et au nickel-cadmium. Pour d'autres systèmes de batterie à électrolyte aqueux, les exigences peuvent être appliquées en conséquence. La norme couvre les aspects liés à la sécurité prenant en compte les dangers associés aux éléments suivants:
- l'électricité (installation, charge, décharge, etc.);
- l'électrolyte;
- les mélanges de gaz inflammables;
- le stockage et le transport.

General Information

• Status: Published
• Publication Date: 14-Apr-2015
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.220.20 - Acid secondary cells and batteries
• ICS: 29.220.30 - Alkaline secondary cells and batteries
• Technical Committee: TC 21 - Secondary cells and batteries
• Current Stage: PPUB - Publication issued
• Start Date: 15-May-2015
• Completion Date: 15-Apr-2015

Standards Content (Sample)

IEC 62485-1 ®
Edition 1.0 2015-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Safety requirements for secondary batteries and battery installations –
Part 1: General safety information

Exigences de sécurité pour les batteries d’accumulateurs et les installations de
batteries –
Partie 1: Informations générales de sécurité

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.: [phone]
3, rue de Varembé Fax: [phone]
CH-1211 Geneva 20 [e-mail]
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 more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 15
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical 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 More than 60 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been 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: [e-mail].
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 plus de 30 000 termes et définitions en
Spécifications techniques, Rapports techniques et autres
anglais et en français, ainsi que les termes équivalents dans
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
15 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
Plus de 60 000 entrées terminologiques électrotechniques, en
La recherche avancée permet de trouver des publications IEC
en utilisant différents critères (numéro de référence, texte, anglais et en français, extraites des articles Termes et
comité d’études,…). Elle donne aussi des informations sur les Définitions des publications IEC parues depuis 2002. Plus
projets et les publications remplacées ou retirées. certaines entrées 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:
[e-mail].
IEC 62485-1 ®
Edition 1.0 2015-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Safety requirements for secondary batteries and battery installations –

Part 1: General safety information

Exigences de sécurité pour les batteries d’accumulateurs et les installations de

batteries –
Partie 1: Informations générales de sécurité

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220.20; 29.220.30 ISBN 978-2-8322-2614-8

– 2 – IEC 62485-1:2015  IEC 2015
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 General information . 8
4.1 General . 8
4.2 Charge . 9
4.2.1 General . 9
4.2.2 Charging techniques and charging procedures . 9
4.2.3 Charger characteristics . 10
4.2.4 Mode of operation . 10
4.3 Discharge . 11
4.4 Superimposed AC current / ripple current. 12
5 Protection against electric shock . 12
6 Disconnection and separation . 12
7 Commissioning and putting batteries into operation . 12
7.1 Delivery conditions of batteries . 12
7.2 Electrolyte and topping up water (for vented / flooded type cells only). 12
7.3 Commissioning . 12
8 Limit values and correction factors . 13
8.1 General . 13
8.2 Rated capacity and depth of discharge . 13
8.3 Charge current, charge voltage . 13
8.3.1 General . 13
8.3.2 Charge voltage . 13
8.4 External short circuit . 14
8.5 Battery temperature . 14
8.5.1 Temperature limits . 14
8.5.2 Temperature correction of the charging voltage . 15
9 Provisions against explosion hazards . 16
10 Provision against electrolyte hazards . 16
11 Marking, labeling and instructions . 17
12 Transport and storage . 17
13 Disposal and environmental aspects . 17
Bibliography . 18

Figure 1 – Battery/cycle operation mode of a battery (charge/discharge) . 10
Figure 2 – Response (switch) mode operation . 11
Figure 3 – Parallel operation mode (including standby and buffer operation mode) . 11
Figure 4 – Freezing point curve of sulphuric acid . 15
Figure 5 – Freezing point curve of potassium hydroxide solution . 15

Table 1 – Electrochemical couples (secondary cells) . 8

Table 2 – Preferred fields of application of secondary battery design . 9
Table 3 – Permitted variation of single cell voltage during charging with constant
voltage at battery temperature 20 °C. 14
Table 4 – Operating temperatures . 14
Table 5 – Typical temperature correction factor λ of the single cell charging voltage . 16
U
– 4 – IEC 62485-1:2015  IEC 2015
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY REQUIREMENTS FOR SECONDARY
BATTERIES AND BATTERY INSTALLATIONS –

Part 1: General safety information

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 itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in s
...