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BS EN IEC 62660-3:2022 – TC

$217.84

Tracked Changes. Secondary lithium-ion cells for the propulsion of electric road vehicles – Safety requirements

Published By Publication Date Number of Pages
BSI 2022 78
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This part of IEC 62660 specifies test procedures and acceptance criteria for safety performance of secondary lithium-ion cells and cell blocks used for propulsion of electric vehicles (EV) including battery electric vehicles (BEV) and hybrid electric vehicles (HEV). This document determines the basic safety performance of cells used in a battery pack and system under intended use and reasonably foreseeable misuse or incident, during the normal operation of the EV. The safety requirements of the cell in this document are based on the premise that the cells are properly used in a battery pack and system within the limits for voltage, current and temperature as specified by the cell manufacturer (cell operating region). The evaluation of the safety of cells during transport and storage is not covered by this document. NOTE 1 The safety performance requirements for lithium-ion battery packs and systems are defined in ISO 6469‑1. The specifications and safety requirements for lithium-ion battery packs and systems of electrically propelled mopeds and motorcycles are defined in ISO 18243. IEC 62619 covers the safety requirements for the lithium-ion cells and batteries for industrial applications, including, for example, forklift trucks, golf carts, and automated guided vehicles. NOTE 2 Lithium cells, modules, battery packs, and battery systems are regulated by International Air Transport Association (IATA) and International Maritime Organization (IMO) for air and sea transport, and, regionally, by other authorities, mainly for land transport. Refer to IEC 62281 for additional information.

PDF Catalog

PDF Pages PDF Title
1 30455364
45 A-30396242
46 undefined
49 Annex ZA (normative)Normative references to international publicationswith their corresponding European publications
52 English
CONTENTS
54 FOREWORD
56 1 Scope
2 Normative references
3 Terms and definitions
59 4 Test conditions
4.1 General
4.2 Measuring instruments
4.2.1 Range of measuring devices
4.2.2 Voltage measurement
4.2.3 Current measurement
4.2.4 Temperature measurements
60 4.2.5 Other measurements
4.3 Tolerance
4.4 Thermal stabilization
5 Electrical measurement
5.1 General charge conditions
Figure 1 – Example of temperature measurement of cell
61 5.2 Capacity
5.3 SOC adjustment
6 Safety tests
6.1 General
62 6.2 Mechanical tests
6.2.1 Mechanical shock
6.2.2 Crush
63 6.3 Thermal test
6.3.1 High temperature endurance
6.3.2 Temperature cycling
Figure 2 – Example of crush test
64 6.4 Electrical tests
6.4.1 External short-circuit
6.4.2 Overcharge
6.4.3 Forced discharge
65 6.4.4 Internal short-circuit test
67 Annex A (informative) Operating region of cells for safe use
A.1 General
A.2 Charging conditions for safe use
A.2.1 General
A.2.2 Consideration on charging voltage
68 A.2.3 Consideration on temperature
69 A.3 Example of operating region
Figure A.1 – An example of operating region for charging of typical lithium-ion cells
Figure A.2 – An example of operating region for discharging of typical lithium-ion cells
70 Annex B (informative) Explanation for the internal short-circuit test
B.1 General concept
B.2 Internal short-circuit caused by the particle contamination
Table B.1 – Examples of the internal short-circuit of cell
72 Annex C (normative) Alternative internal short-circuit test (6.4.4.2.2)
C.1 General
C.2 Test preparation and test set-up
C.2.1 Preparation of cell before the test
Figure C.1 – Example of case thinning
73 Figure C.2 – Example of thinning tool
Figure C.3 – Example of removing hard case
Figure C.4 – Example of hard case removal method during cell manufacturing
74 C.2.2 Test setup
Figure C.5 – Example of fixation of cell
Figure C.6 – Test setup image for voltage measurement
75 C.2.3 Preliminary test
Figure C.7 – Example of abrupt voltage drop
76 C.3 Test procedure
C.4 Acceptance criteria
77 Bibliography
BS EN IEC 62660-3:2022 - TC
$217.84