EN 61951-1:2014

Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Part 1: Nickel-cadmium

IEC 61951-1:2013 specifies marking, designation, dimensions, tests and requirements for portable sealed nickel-cadmium small prismatic, cylindrical and button rechargeable single cells, suitable for use in any orientation. This third edition cancels and replaces the second edition (2003) and its amendment 1 (2005) of which it constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - addition of several new cell sizes; - introduction of a new cell type J; - creation of Annex A (informative): Capacity of batteries measurement.

Akkumulatoren und Batterien mit alkalischen oder anderen nichtsäurehaltigen Elektrolyten - Tragbare wiederaufladbare gasdichte Einzelzellen - Teil 1: Nickel-Cadmium

Accumulateurs alcalins et autres accumulateurs à électrolyte non-acide - Accumulateurs individuels portables étanches - Partie 1: Nickel-cadmium

La CEI 61951-1:2013 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-cadmium, pouvant être utilisés dans toutes les orientations. Cette troisième édition annule et remplace la deuxième édition parue en 2003 ainsi que son amendement 1 paru en 2005. Elle constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - addition de plusieurs nouvelles dimensions d'éléments; - introduction d'un nouveau type d'élément J; - création de l'Annexe A (informative): mesure de la capacité d'une batterie.

Sekundarni členi in baterije z alkalnimi ali drugimi nekislinskimi elektroliti - Prenosne posamezne ponovno polnljive hermetične celice - 1. del: Nikelj-kadmij (IEC 61951-1:2013)

Standard EN IEC 61951-1 določa označevanje, določanje, dimenzije, preskuse in zahteve za majhne posamezne prenosne ponovno polnljive hermetične nikelj-kadmijeve prizmatične, cilindrične in gumbaste celice, ki se uporabljajo pri vsaki orientaciji.

General Information

• Status: Withdrawn
• Publication Date: 15-May-2014
• Withdrawal Date: 18-Nov-2016
• ICS: 29.220.30 - Alkaline secondary cells and batteries
• Technical Committee: CLC/TC 21X - Secondary cells and batteries
• Drafting Committee: IEC/SC 21A - IEC_SC_21A
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 11-Apr-2020
• Completion Date: 11-Apr-2020
• Ref Project: SIST EN 61951-1:2014 - Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Part 1: Nickel-cadmium

Relations

• Replaces: EN 61951-1:2003/A1:2006 - Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Part 1: Nickel-cadmium
• Effective Date: 29-Jan-2023
• Replaces: EN 61951-1:2003 - Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Part 1: Nickel-cadmium
• Effective Date: 29-Jan-2023
• Replaced By: EN 61951-1:2017 - Secondary cells and batteries containing alkaline or other non-acid electrolytes - Secondary sealed cells and batteries for portable applications - Part 1: Nickel-cadmium
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2014
1DGRPHãþD
SIST EN 61951-1:2004
SIST EN 61951-1:2004/A1:2006
6HNXQGDUQLþOHQLLQEDWHULMH]DONDOQLPLDOLGUXJLPLQHNLVOLQVNLPLHOHNWUROLWL
3UHQRVQHSRVDPH]QHSRQRYQRSROQOMLYHKHUPHWLþQHFHOLFHGHO1LNHOMNDGPLM
,(&
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable
sealed rechargeable single cells - Part 1: Nickel-cadmium
/
Accumulateurs alcalins et autres accumulateurs à électrolyte non-acide - Accumulateurs
individuels portables étanches - Partie 1: Nickel-cadmium
Ta slovenski standard je istoveten z: EN 61951-1:2014
ICS:
29.220.30 $ONDOQLVHNXQGDUQLþOHQLLQ Alkaline secondary cells and
EDWHULMH batteries
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 61951-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2014
ICS 29.220.30 Supersedes EN 61951-1:2003
English Version
Secondary cells and batteries containing alkaline or other non-
acid electrolytes - Portable sealed rechargeable single cells -
Part 1: Nickel-cadmium
(IEC 61951-1:2013)
Accumulateurs alcalins et autres accumulateurs à Akkumulatoren und Batterien mit alkalischen oder anderen
électrolyte non-acide - Accumulateurs individuels portables nichtsäurehaltigen Elektrolyten - Tragbare wiederaufladbare
étanches - Partie 1: Nickel-cadmium gasdichte Einzelzellen - Teil 1: Nickel-Cadmium
(CEI 61951-1:2013) (IEC 61951-1:2013)
This European Standard was approved by CENELEC on 2013-11-19. 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 CEN-CENELEC
Management Centre 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 CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2014 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 61951-1:2014 E
Foreword
The text of document 21A/521/FDIS, future edition 3 of IEC 61951-1, 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
The following dates were fixed:
– latest date by which the EN has to be implemented (dop) 2014-11-16
at national level by publication of an identical
national standard or by endorsement
– latest date by which the national standards conflicting (dow) 2016-11-19
with the EN have to be withdrawn

This European Standard supersedes EN 61951-1:2003.
— addition of several new cell sizes;
— introduction of a new cell type J;
— creation of Annex A: Capacity of batteries measurement.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
Endorsement notice
The text of the International Standard IEC 61951-1:2013 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 60051 series NOTE  Harmonized in EN 60051 series.
IEC 61434 NOTE  Harmonized as EN 61434.

- 3 - EN 61951-1:2014
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  When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year

IEC 60050-482 - International Electrotechnical Vocabulary - - -
Part 482: Primary and secondary cells and
batteries
1)
IEC 60086-1 Primary batteries - EN 60086-1
Part 1: General
-
2)
IEC 60086-2 Primary batteries - EN 60086-2 -
Part 2: Physical and electrical specifications

IEC 60410 - Sampling plans and procedures - -
for inspection by attributes
IEC 61959 - Secondary cells and batteries containing EN 61959 -
alkaline or other non-acid electrolytes -
Mechanical tests for sealed portable
secondary cells and batteries
IEC 62133 - Secondary cells and batteries containing EN 62133 -
alkaline or other non-acid electrolytes -
Safety requirements for portable sealed
secondary cells, and for batteries made from
them, for use in portable applications

1)
EN 60086-1 is superseded by EN 60086-1:2011, which is based on IEC 60086-1:2011.
2)
EN 60086-2 is superseded by EN 60086-2:2011, which is based on IEC 60086-2:2011.

IEC 61951-1 ®
Edition 3.0 2013-10
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Secondary cells and batteries containing alkaline or other non-acid

electrolytes – Portable sealed rechargeable single cells –

Part 1: Nickel-cadmium
Accumulateurs alcalins et autres accumulateurs à électrolyte non acide –

Accumulateurs individuels portables étanches –

Partie 1: Nickel-cadmium
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX W
ICS 29.220.30 ISBN 978-2-8322-1122-9

– 2 – 61951-1  IEC:2013
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Parameter measurement tolerances . 8
5 Cell designation and marking . 9
5.1 Cell designation . 9
5.1.1 Small prismatic cells and cylindrical cells . 9
5.1.2 Button cells . 10
5.2 Cell termination . 10
5.3 Marking . 11
5.3.1 Small prismatic cells and cylindrical cells . 11
5.3.2 Button cells . 11
6 Dimensions . 12
6.1 Small prismatic cells and cylindrical cells . 12
6.1.1 General . 12
6.1.2 Small prismatic cells . 12
6.1.3 Cylindrical cells . 13
6.2 Button cells. 15
7 Electrical tests . 16
7.1 General . 16
7.2 Charging procedure for test purposes . 16
7.3 Discharge performance . 16
7.3.1 General . 16
7.3.2 Discharge performance at 20 °C . 16
7.3.3 Discharge performance at –18 °C . 17
7.3.4 Discharge performance for rapid charge cells (R cells) . 18
7.4 Charge (capacity) retention . 18
7.5 Endurance . 18
7.5.1 Endurance in cycles . 18
7.5.2 Permanent charge endurance . 21
7.6 Charge acceptance at constant voltage . 26
7.7 Overcharge. 26
7.7.1 Small prismatic cells . 26
7.7.2 L, M, H or X cylindrical and button cells . 27
7.7.3 LT/LU, MT/MU or HT/HU cylindrical cells . 27
7.7.4 J cylindrical cells . 27
7.7.5 JT cylindrical cells . 28
7.7.6 R cylindrical cells . 28
7.8 Gas release device operation . 28
7.9 Storage . 29
7.10 Charge acceptance at +55 °C for LT, MT or HT cylindrical cells . 29
7.11 Trickle charge acceptance for JT cylindrical cells . 30
7.12 Internal resistance . 30
7.12.1 General . 30

61951-1  IEC:2013 – 3 –
7.12.2 Measurement of the internal a.c. resistance . 31
7.12.3 Measurement of the internal d.c. resistance . 31
8 Mechanical tests . 32
9 Safety requirements . 32
10 Type approval and batch acceptance . 32
10.1 General . 32
10.2 Type approval . 32
10.2.1 Type approval for small prismatic cells . 32
10.2.2 Type approval for cylindrical and button cells. 32
10.3 Batch acceptance . 34
Annex A (informative) Procedure for measuring the capacity of a battery . 36
Bibliography . 37

Figure 1 – Jacketed cylindrical cells . 12
Figure 2 – Jacketed small prismatic cells .
...