IEC 62675:2014

IEC 62675 ®
Edition 1.0 2014-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Secondary cells and batteries containing alkaline or other non-acid
electrolytes – Sealed nickel-metal hydride prismatic rechargeable single cells

Accumulateurs alcalins et autres accumulateurs à électrolyte non acide –
Éléments individuels parallélépipédiques rechargeables étanches au nickel-
métal hydrure
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IEC 62675 ®
Edition 1.0 2014-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Secondary cells and batteries containing alkaline or other non-acid

electrolytes – Sealed nickel-metal hydride prismatic rechargeable single cells

Accumulateurs alcalins et autres accumulateurs à électrolyte non acide –

Éléments individuels parallélépipédiques rechargeables étanches au nickel-

métal hydrure
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX Q
ICS 29.220.99 ISBN 978-2-8322-1845-7

– 2 – IEC 62675:2014  IEC 2014
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Parameter measurement tolerances . 7
5 Designation and marking . 7
5.1 Cell designation . 7
5.2 Cell termination . 8
5.3 Marking . 8
5.4 Safety recommendations . 8
6 Dimensions. 8
7 Electrical tests . 10
7.1 General . 10
7.2 Charging procedure for test purposes . 10
7.3 Discharge performance . 10
7.3.1 General . 10
7.3.2 Discharge performance at 20 °C . 10
7.3.3 Discharge performance at +5 °C . 11
7.3.4 Discharge performance at –18 °C . 11
7.3.5 High rate current test . 12
7.4 Charge retention . 12
7.5 Endurance . 13
7.5.1 Endurance in cycles. 13
7.5.2 Permanent charge endurance . 13
7.6 Charge acceptance at constant voltage . 14
7.7 Overcharge . 14
7.8 Vent plug operation . 14
7.9 Safety device operation . 14
7.10 Gas leakage test . 15
7.11 Storage . 15
8 Mechanical tests . 15
9 Physical appearance . 15
10 Conditions for approval and acceptance . 15
10.1 Type approval . 15
10.2 Batch acceptance . 16
Bibliography . 17

Figure 1 – Example of a sealed prismatic cell in steel container with two terminals and
four lugs . 8
Figure 2 – Example of a sealed prismatic cell in plastic container with two terminals . 9

Table 1 – Dimensions for sealed nickel-metal hydride prismatic cells in steel
containers . 9
Table 2 – Dimensions for sealed nickel-metal hydride prismatic cells in plastic
containers . 9

Table 3 – Measurement tolerances in millimetres (valid for widths and lengths) . 10
Table 4 – Discharge performance at 20 °C . 11
Table 5 – Discharge performance at +5 °C . 11
Table 6 – Discharge performance at –18 °C . 12
Table 7 – High currents values. 12
Table 8 – Endurance in cycles . 13
Table 9 – Sequence of tests for type approval . 16
Table 10 – Recommended test sequence for batch acceptance . 16

– 4 – IEC 62675:2014  IEC 2014
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SECONDARY CELLS AND BATTERIES CONTAINING
ALKALINE OR OTHER NON-ACID ELECTROLYTES –
SEALED NICKEL-METAL HYDRIDE PRISMATIC
RECHARGEABLE SINGLE CELLS
FOREWORD
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...