EN 61951-2:2003
(Main)Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Part 2: Nickel-metal hydride
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Part 2: Nickel-metal hydride
This part of EN 61951 specifies marking, designation, dimensions, tests and require-ments for portable sealed nickel-metal hydride, small prismatic, cylindrical and button rechargeable single cells, suitable for use in any orientation
Akkumulatoren und Batterien mit alkalischem oder anderen nichtsäurehaltigen Elektrolyten - Tragbare wiederaufladbare gasdichte Einzelzellen - Teil 2: Nickel-Metallhydrid
Accumulateurs alcalins et autres accumulateurs à électrolyte non-acide - Accumulateurs individuels portables étanches - Partie 2: Nickel-métal hydrure
La présente partie de la EN 61951 spécifie le marquage, la désignation, les dimensions, les essais et les prescriptions applicables aux petits éléments parallélépipédiques, aux éléments cylindriques et aux éléments boutons, individuels, portables, rechargeables, étanches, au nickel-métal hydrure, pouvant être utilisés dans toutes les orientations
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Part 2: Nickel-metal hydride
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Standards Content (Sample)
SLOVENSKI SIST EN 61951-2:2004
STANDARD
februar 2004
Secondary cells and batteries containing alkaline or other non-acid electrolytes -
Portable sealed rechargeable single cells - Part 2: Nickel-metal hydride
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 61951-2
NORME EUROPÉENNE
EUROPÄISCHE NORM July 2003
ICS 29.220.30 Supersedes EN 61436:1998, EN 61808:2000 & EN 61951-2:2001
English version
Secondary cells and batteries containing
alkaline or other non-acid electrolytes –
Portable sealed rechargeable single cells
Part 2: Nickel-metal hydride
(IEC 61951-2:2003)
Accumulateurs alcalins et autres Akkumulatoren und Batterien mit
accumulateurs à électrolyte non-acide - alkalischem oder anderen
Accumulateurs individuels portables nichtsäurehaltigen Elektrolyten –
étanches Tragbare wiederaufladbare gasdichte
Partie 2: Nickel-métal hydrure Einzelzellen
(CEI 61951-2:2003) Teil 2: Nickel-Metallhydrid
(IEC 61951-2:2003)
This European Standard was approved by CENELEC on 2003-06-01. 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, Czech Republic,
Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta,
Netherlands, Norway, Portugal, Slovakia, 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
© 2003 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61951-2:2003 E
Foreword
The text of document 21A/374/FDIS, future edition 2 of IEC 61951-2, 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 61951-2 on 2003-06-01.
This European Standard supersedes EN 61436:1998, EN 61808:2000 and EN 61951-2:2001.
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) 2004-03-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2006-06-01
Annexes designated "normative" are part of the body of the standard.
In this standard, annex ZA is normative.
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61951-2:2003 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 61434 NOTE Harmonized as EN 61434:1996 (not modified).
__________
- 3 - EN 61951-2:2003
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
This European Standard incorporates by dated or undated reference, provisions from other
publications. These normative references are cited at the appropriate places in the text and the
publications are listed hereafter. For dated references, subsequent amendments to or revisions of any
of these publications apply to this European Standard only when incorporated in it by amendment or
revision. For undated references the latest edition of the publication referred to applies (including
amendments).
NOTE When 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 Series Direct acting indicating analogue EN 60051 Series
electrical measuring instruments and
their accessories
IEC 60086 Series Primary batteries EN 60086 Series
1)
IEC 60410 - Sampling plans and procedures for - -
inspection by attributes
1)
IEC 60485 - Digital electronic d.c. voltmeters and - -
d.c. electronic analogue-to-digital
converters
2)
IEC 61959 - Secondary cells and batteries - -
containing alkaline or other non-acid
electrolytes - Mechanical tests for
sealed portable secondary cells and
batteries
1)
Undated reference.
2)
At draft stage.
NORME CEI
INTERNATIONALE IEC
61951-2
INTERNATIONAL
Deuxième édition
STANDARD
Second edition
2003-04
Accumulateurs alcalins et autres accumulateurs
à électrolyte non acide –
Accumulateurs individuels portables étanches –
Partie 2:
Nickel-métal hydrure
Secondary cells and batteries containing
alkaline or other non-acid electrolytes –
Portable sealed rechargeable single cells –
Part 2:
Nickel-metal hydride
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
U
Commission Electrotechnique Internationale PRICE CODE
International Electrotechnical Commission
Международная Электротехническая Комиссия
Pour prix, voir catalogue en vigueur
For price, see current catalogue
61951-2 IEC:2003 – 3 –
CONTENTS
FOREWORD . 7
1 Scope .11
2 Normative references.11
3 Definitions .11
4 Parameter measurement tolerances.13
5 Cell designation and marking.15
5.1 Cell designation.15
5.1.1 Small prismatic cells .15
5.1.2 Cylindrical cells.15
5.1.3 Button cells.17
5.2 Cell termination .17
5.3 Marking .17
5.3.1 Small prismatic cells and cylindrical cells.17
5.3.2 Button cells.19
6 Dimensions.19
6.1 Small prismatic cells and cylindrical cells.19
6.1.1 Small prismatic cells .21
6.1.2 Cylindrical cells.21
6.2 Button cells.23
7 Electrical tests .25
7.1 Charging procedure for test purposes .25
7.2 Discharge performance.25
7.2.1 Discharge performance at 20 °C .25
7.2.2 Discharge performance at 0 °C .27
7.2.3 Discharge performance for rapid charge cells (R cells) .29
7.3 Charge (capacity) retention.29
7.4 Endurance .29
7.4.1 Endurance in cycles.29
7.4.2 Permanent charge endurance .35
7.5 Charge acceptance at constant voltage .37
7.6 Overcharge.39
7.6.1 Small prismatic, L, M, H or X cylindrical, and button cells .39
7.6.2 LT, MT or HT cylindrical cells.39
7.6.3 R cylindrical cells.39
7.7 Safety device operation .41
7.8 Storage.41
7.9 Charge acceptance at +55 °C for LT, MT or HT cylindrical cells.43
7.10 Internal resistance .43
7.10.1 Measurement of the internal a.c. resistance.43
7.10.2 Measurement of the internal d.c. resistance.45
8 Mechanical tests.45
61951-2 IEC:2003 – 5 –
9 Type approval and batch acceptance.47
9.1 Batch approval .47
9.1.1 Type approval for small prismatic cells and button cells .47
9.1.2 Type approval for cylindrical cells .47
9.2 Batch acceptance .49
Bibliography.53
Figure 1 – Jacketed cylindrical cells .19
Figure 2 – Jacketed small prismatic cells .19
Figure 3 – Button cells .23
Table 1 – Dimensions of jacketed small prismatic cells .21
Table 2 – Cylindrical cells dimensionally interchangeable with primary batteries .21
Table 3 – Dimensions of jacketed cylindrical cells not dimensionally interchangeable
with primary batteries.23
Table 4 – Dimensions of button cells.25
Table 5 – Discharge performance at 20 °C for small prismatic cells and cylindrical cells .27
Table 6 – Discharge performance at 20 °C for button cells .27
Table 7 – Discharge performance at 0 °C for small prismatic cells and cylindrical cells .27
Table 8 – Discharge performance at 0 °C for button cells .29
Table 9 – Endurance in cycles for small prismatic, button and cylindrical cells .31
Table 10 – Endurance in cycles for H or X cells .31
Table 11 – Endurance in cycles for X cells .33
Table 12 – Endurance in cycles for HR or XR cells.33
Table 13 – Permanent charge endurance for L, M, H or X cells .35
Table 14 – Permanent charge endurance for LT, MT or HT cells .37
Table 15 – Overcharge at 0 °C .39
Table 16 – Charge and discharge at +55 °C.43
Table 17 – Constant discharge currents used for measurement of
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