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BS EN 61951-2:2017+A1:2022

BS EN 61951-2:2017+A1:2022

$198.66

Secondary cells and batteries containing alkaline or other non acid electrolytes. Secondary sealed cells and batteries for portable applications – Nickel-metal hydride

Published By Publication Date Number of Pages
BSI 2022 52
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PDF Catalog

PDF Pages PDF Title
2 undefined
7 CONTENTS
10 FOREWORD
12 1 Scope
2 Normative references
3 Terms and definitions
14 4 Parameter measurement tolerances
15 5 Cell and battery designation and marking
5.1 Cell and battery designation
5.1.1 Small prismatic cells and cylindrical cells
16 5.1.2 Button cells
17 5.1.3 Batteries
5.2 Cell or battery termination
5.3 Marking
5.3.1 Small prismatic cells and cylindrical cells
18 5.3.2 Button cells
5.3.3 Batteries
5.4 Exemption of wording
6 Dimensions
6.1 Small prismatic cells and cylindrical cells
6.1.1 General
19 6.1.2 Small prismatic cells
6.1.3 Cylindrical cells
Figures
Figure 1 – Jacketed cylindrical cells
Figure 2 – Jacketed small prismatic cells
Tables
Table 1 – Dimensions of jacketed small prismatic cells
20 Figure 3 – Jacketed cells dimensionally interchangeable with primary cells
Table 2 – Dimensions of jacketed cylindrical cells dimensionally interchangeable with primary cells
21 6.2 Button cells
Table 3 – Dimensions of jacketed cylindrical cells not dimensionally interchangeable with primary cells
22 6.3 9 V type nickel-metal hydride batteries
Figure 4 – Button cells
Figure 5 – 9 V type nickel-metal hydride batteries
Table 4 – Dimensions of button cells
23 7 Electrical tests
7.1 General
7.2 Charging procedure for test purposes
7.2.1 Charging procedure for cell
7.2.2 Charging procedure for battery
7.3 Discharge performance
7.3.1 General
Table 5 – Dimensions of 9 V type nickel-metal hydride batteries
24 7.3.2 Discharge performance at 20 °C
Table 6 – Discharge performance at 20 °C for small prismatic cells and cylindrical cells
Table 7 – Discharge performance at 20 °C for button cells
25 7.3.3 Discharge performance at 0 °C
Table 8 – Discharge performance at 20 °C for batteries
Table 9 – Rated capacity (mAh) compliance test (example)
26 7.3.4 Discharge performance for rapid charge cells (R cells)
7.4 Charge (capacity) retention
Table 10 – Discharge performance at 0 °C for small prismatic cells and cylindrical cells
Table 11 – Discharge performance at 0 °C for button cells
27 7.5 Endurance
7.5.1 Endurance in cycles
Table 12 – Endurance in cycles for small prismatic, button and cylindrical cells not dimensionally interchangeable with primary cells
28 Table 13 – Endurance in cycles for H or X cells
Table 14 – Endurance in cycles for X cells
29 Table 15 – Endurance in cycles for HR or XR cells
Table 16 – Endurance in cycles for cylindrical cells dimensionally interchangeable with primary cells
30 7.5.2 Permanent charge endurance
Table 17 – Permanent charge endurance for L, M, J, H or X cells
31 Table 18 – Permanent charge endurance for LT, MT or HT cells
33 7.6 Charge acceptance at constant voltage
7.7 Overcharge
7.7.1 Small prismatic, L, M, H, X, LS or MS cylindrical, and button cells
Table 19 – Permanent charge endurance for LU, MU or HU cells
34 7.7.2 LT/LU, MT/MU or HT/HU cylindrical cells
7.7.3 J cylindrical cells
7.7.4 JT cylindrical cells
Table 20 – Overcharge at 0 °C
35 7.7.5 R cylindrical cells
7.8 Pressure relief feature
7.9 Surface temperature limitation device operation (for S cell only)
36 7.10 Storage
7.10.1 Button cells or batteries, small prismatic cells or batteries, cylindrical cells or batteries
37 7.10.2 Button cells or batteries, small prismatic cells or batteries, cylindrical cells or batteries (high recovery type)
Table 21 – Capacity deterioration due to storage period for cells or batteries
38 7.11 Charge acceptance at +55 °C for LT, MT or HT cylindrical cells
Table 22 – Capacity deterioration due to storage period for cells or batteries (high recovery type)
39 7.12 Trickle charge acceptance for JT cylindrical cells
7.13 Internal resistance
7.13.1 General
Table 23 – Charge and discharge at +55 °C
Table 24 – Trickle charge acceptance for JT cylindrical cells
40 7.13.2 Measurement of the internal AC resistance
7.13.3 Measurement of the internal DC resistance
41 8 Mechanical tests
9 Safety requirements
10 Type approval and batch acceptance
10.1 General
10.2 Type approval
10.2.1 Type approval for small prismatic cells and button cells
Table 25 – Constant discharge currents used for measurement of DC resistance
42 Table 26 – Sequence of tests for type approval for small prismatic cells
43 Table 27 – Sequence of tests for type approvalfor small prismatic cells (high recovery type)
44 Table 28 – Sequence of tests for type approval for button cells
45 10.2.2 Type approval for cylindrical cells
Table 29 – Sequence of tests for type approval for button cells (high recovery type)
46 Table 30 – Sequence of tests for type approval for cylindrical cells
47 10.2.3 Type approval for batteries
Table 31 – Sequence of tests for type approval for cylindrical cells (high recovery type)
48 10.3 Batch acceptance
Table 32 – Sequence of tests for type approval for batteries
Table 33 – Sequence of tests for type approval for batteries (high recovery type)
49 Table 34 – Recommended test sequence for batch acceptance
50 Bibliography

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BS EN 61951-2:2017+A1:2022
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