IEC 61951-1:2013

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.

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.

General Information

• Status: Published
• Publication Date: 14-Oct-2013
• ICS: 29.220.30 - Alkaline secondary cells and batteries
• Technical Committee: SC 21A - Secondary cells and batteries containing alkaline or other non-acid electrolytes
• Drafting Committee: WG 2 - TC 21/SC 21A/WG 2
• Current Stage: DELPUB - Deleted Publication
• Completion Date: 07-Mar-2017

Relations

• Revises: IEC 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: 05-Sep-2023
• Revises: IEC 61951-1:2003/AMD1:2005 - Amendment 1 - Secondary cells and batteries containing alkaline or other non-acid electrolytes - Portable sealed rechargeable single cells - Part 1: Nickel-cadmium
• Effective Date: 05-Sep-2023
• Revised: IEC 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: 05-Sep-2023

Standards Content (Sample)

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
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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 . 12
Figure 3 – Jacketed cells dimensionally interchangeable with primary cells . 13
Figure 4 – Button cells . 15

Table 1 – Dimensions of jacketed small prismatic cells . 12
Table 2 – Dimensions of jacketed cylindrical cells dimensionally interchangeable with
primary cells . 13
Table 3 – Dimensions of jacketed cylindrical cells not dimensionally interchangeable
with primary cells . 14
Table 4 – Dimensions of button cells . 15
Table 5 – Discharge performance at 20 °C for small prismatic cells and cylindrical cells . 16
Table 6 – Discharge performance at 20 °C for button cells . 17
Table 7 – Discharge performance at –18 °C for small prismatic cells . 17
Table 8 – Discharge performance at –18 °C for cylindrical cells . 17
Table 9 – Discharge performance at –18 °C for button cells . 18
Table 10 – Endurance in cycles for small prismatic cells and cylindrical cells not
dimensionally interchangeable with primary cells . 19
Table 11 – Endurance in cycles for H or X cells . 20
Table 12 – Endurance in cycles for cylindrical X cells .
...