ISO 17546:2024

International
Standard
ISO 17546
Second edition
Space systems — Lithium ion
2024-02
battery for space vehicles — Design
and verification requirements
Systèmes spatiaux — Batteries à ions lithium pour véhicules
spatiaux — Exigences de vérification et de conception
Reference number
© ISO 2024
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Published in Switzerland
ii
Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms. 6
5 Cell . 6
5.1 Performance .6
5.1.1 General .6
5.1.2 Test requirements .7
[4]
5.1.3 Test data trending .7
5.1.4 Cell qualification test .8
5.1.5 Leakage (hermetic) test .8
5.1.6 Safety tests .8
[5]
5.1.7 Thermal/thermal vacuum test .8
5.1.8 Mechanical environmental test.8
5.1.9 Radiation test .9
5.1.10 Life cycle test .9
5.1.11 Models for analysis .10
5.2 Safety.10
5.2.1 General .10
5.2.2 Hazard description .10
5.2.3 Protective devices as a hazard control .10
5.2.4 Safety testing .11
5.2.5 Important test considerations . 12
5.2.6 Optional test . 13
5.3 Logistics . . 13
5.3.1 General . 13
5.3.2 Cell manufacturing, storage and testing .14
5.3.3 Safety measure for handling .14
5.3.4 Cell transportation . 15
5.4 COTS cells for space use . 15
5.4.1 General . 15
5.4.2 Safety requirements . 15
5.4.3 Lot integrity assessment . 15
5.4.4 Mission conformance test . 15
5.4.5 Charge and discharge test . 15
5.4.6 Thermal vacuum test .16
5.4.7 Mechanical environment test .16
5.4.8 Cycle life test .16
5.4.9 Storage life test .16
6 Battery . 16
6.1 Performance .16
6.1.1 General .16
[4][5][6]
6.1.2 C/n charge or discharge current (c-rate) .16
6.1.3 Cut-off voltage .16
6.1.4 Cycle .17
[4][5][6][13]
6.1.5 Depth of discharge (DOD) .17
6.1.6 End of charge voltage .17
6.1.7 Energy .17
6.1.8 Energy density .17
[4][5]
6.1.9 Energy reserve .18
[9][13]
6.1.10 Fully charged .18

iii
6.1.11 Nameplate capacity .18
6.1.12 Nominal capacity .18
[5][12]
6.1.13 Nameplate energy .18
[9]
6.1.14 Nominal voltage .18
6.1.15 State of charge .18
6.1.16 Standard method for capacity measurement .19
6.1.17 Battery internal resistance (ohmic) .19
6.1.18 Battery impedance .19
6.1.19 Life test demonstration .19
6.1.20 For GEO simulated. 20
6.1.21 For LEO simulated . 20
6.1.22 For launch vehicle: simulate ground storage and usage at launch phase . 20
[5][11]
6.1.23 Battery general requirements . 20
6.1.24 Electrical design .21
6.1.25 Thermal design .21
6.1.26 Mechanical design .21
6.1.27 Cell-to-cell balancing mechanisms .
...