1、UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL 1642 Lithium BatteriesUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM ULUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTIO
2、N OR DISTRIBUTION WITHOUT PERMISSION FROM UL UL Standard for Safety for Lithium Batteries, UL 1642 Fifth Edition, Dated March 13, 2012 Summary of Topics Revisions have been issued to the Standard for Lithium Batteries, UL 1642, to incorporate the following: Revised the Impact Test by adding an Excep
3、tion to 14.2. The revised requirements are substantially in accordance with Proposal(s) on this subject dated March 6, 2015. Text that has been changed in any manner or impacted by ULs electronic publishing system is marked with a vertical line in the margin. All rights reserved. No part of this pub
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8、ystem. JUNE 23, 2015 UL 1642 tr1UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL JUNE 23, 2015 UL 1642 tr2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 13
9、, 2012 (Title Page Reprinted: June 23, 2015) 1 UL 1642 Standard for Lithium Batteries First Edition October, 1985 Second Edition November, 1992 Third Edition April, 1995 Fourth Edition September, 2005 Fifth Edition March 13, 2012 This UL Standard for Safety consists of the Fifth Edition including re
10、visions through June 23, 2015. Comments or proposals for revisions on any part of the Standard may be submitted to UL at any time. Proposals should be submitted via a Proposal Request in ULs On-Line Collaborative Standards Development System (CSDS) at http:/. ULs Standards for Safety are copyrighted
11、 by UL. Neither a printed nor electronic copy of a Standard should be altered in any way. All of ULs Standards and all copyrights, ownerships, and rights regarding those Standards shall remain the sole and exclusive property of UL. COPYRIGHT 2015 UNDERWRITERS LABORATORIES INC.UL COPYRIGHTED MATERIAL
12、 NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL MARCH 13, 2012 LITHIUM BATTERIES - UL 1642 2 No Text on This PageUL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL CONTENTS INTRODUCTION 1 Scope .5 2 General 6
13、 2.1 Units of measurement .6 2.2 Terminology .6 2.3 Components .6 3 Glossary .6 CONSTRUCTION 4 General 8 4.1 Casing 8 4.2 Electrolyte .9 4.3 Use.9 PERFORMANCE 5 General 9 5.1 Technician-replaceable batteries .9 5.2 User-replaceable batteries 10 5.3 Multicell installations .10 6 Samples 10 7 Conditio
14、ning of Samples 13 7.1 Discharge 13 7.2 Charge-discharge cycling .14 8 Important Test Considerations .14 9 Temperature Measurements 14 TESTS FOR TECHNICIAN-REPLACEABLE AND USER-REPLACEABLE BATTERIES ELECTRICAL TESTS 10 Short-Circuit Test .14 11 Abnormal Charging Test .15 12 Forced-Discharge Test 16
15、MECHANICAL TESTS 13 Crush Test .17 14 Impact Test 17 15 Shock Test .19 16 Vibration Test 19 ENVIRONMENTAL TESTS 17 Heating Test .19 18 Temperature Cycling Test .20 19 Low Pressure (Altitude Simulation) Test .20 MARCH 13, 2012 LITHIUM BATTERIES - UL 1642 3UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FU
16、RTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL FIRE EXPOSURE TEST 20 Projectile Test 20 MARKING 21 General 21 22 Primary Batteries .22 APPENDIX A Standards for ComponentsA1 MARCH 13, 2012 LITHIUM BATTERIES - UL 1642 4UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR D
17、ISTRIBUTION WITHOUT PERMISSION FROM UL INTRODUCTION 1 Scope 1.1 These requirements cover primary (nonrechargeable) and secondary (rechargeable) lithium batteries for use as power sources in products. These batteries contain metallic lithium, or a lithium alloy, or a lithium ion, and may consist of a
18、 single electrochemical cell or two or more cells connected in series, parallel, or both, that convert chemical energy into electrical energy by an irreversible or reversible chemical reaction. 1.2 These requirements cover lithium batteries intended for use in technician-replaceable or user-replacea
19、ble applications. 1.3 These requirements are intended to reduce the risk of re or explosion when lithium batteries are used in a product. The nal acceptability of these batteries is dependent on their use in a complete product that complies with the requirements applicable to such product. 1.4 These
20、 requirements are also intended to reduce the risk of injury to persons due to re or explosion when user-replaceable lithium batteries are removed from a product and discarded. 1.5 These requirements cover technician-replaceable lithium batteries that contain 5.0 g (0.18 oz) or less of metallic lith
21、ium. A battery containing more than 5.0 g (0.18 oz) of lithium is judged on the basis of compliance with the requirements in this standard, insofar as they are applicable, and further examination and test to determine whether the battery is acceptable for its intended uses. 1.6 These requirements co
22、ver user-replaceable lithium batteries that contain 4.0 g (0.13 oz) or less of metallic lithium with not more than 1.0 g (0.04 oz) of metallic lithium in each electrochemical cell. A battery containing more than 4.0 g (0.13 oz) or a cell containing more than 1.0 g (0.04 oz) lithium may require furth
23、er examination and test to determine whether the cells or batteries are acceptable for their intended uses. 1.7 These requirements do not cover the toxicity risk that may result from the ingestion of a lithium battery or its contents, nor the risk of injury to persons that may occur if a battery is
24、cut open to provide access to the metallic lithium. MARCH 13, 2012 LITHIUM BATTERIES - UL 1642 5UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 2 General 2.1 Units of measurement 2.1.1 Values stated without parentheses are the requirement. V
25、alues in parentheses are explanatory or approximate information. 2.2 Terminology 2.2.1 The terms lithium battery(ies) and battery(ies) refer to both user-replaceable and technician-replaceable lithium batteries. 2.3 Components 2.3.1 A component of a product covered by this standard shall comply with
26、 the requirements for that component. See Appendix A for a list of standards covering components generally used in the products covered by this standard. 2.3.2 A protective device shall be used within the ratings of the device. A protective device shall be evaluated as part of the Whole Cell or Whol
27、e Battery evaluation in accordance with the performance requirements outlined in this standard. 3 Glossary 3.1 For the purpose of this standard the following denitions apply. 3.2 BATTERY General term for (1) A single cell, or (2) a group of cells connected together either in a series and/or parallel
28、 conguration. May be ready for use or may be an installed component. 3.3 BATTERY PACK A battery which is ready for use, contained in a rigid enclosure, with or without protective devices. 3.4 BATTERY, PRIMARY A battery which can only be discharged once. It is not designed to be rechargeable and must
29、 be protected from a charging current. 3.5 BATTERY, SECONDARY A battery that is intended to be discharged and recharged many times in accordance with the manufacturers recommendations. 3.6 BATTERY, TECHNICIAN-REPLACEABLE A battery intended for use in a product in which service and replacement of the
30、 battery will be done only by a person who has been trained to service and repair the product. 3.7 BATTERY, USER-REPLACEABLE A battery intended for use in a product in which service and replacement of the battery may be done by the user. 3.8 CASING The outer rigid can or exible pouch of an individua
31、l cell or of a single cell standardized (i.e. AA, C, D, etc.) battery that contains the internal components of that cell or single cell standardized battery. The casing form factors noted for cells in this standard are cylindrical, prismatic, coin and pouch. MARCH 13, 2012 LITHIUM BATTERIES - UL 164
32、2 6UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.9 CELL, COMPONENT The basic functional electrochemical unit containing an assembly of electrodes, electrolyte, container, terminals, and usually separators, that is a source of electrical
33、energy by direct conversion of chemical energy. May be ready for use, or may be provided as a component of a battery pack. 3.10 CELL OPERATING REGION (lithium ion systems) The conditions during charging and discharging in which the cell operates within its voltage and current and temperature range a
34、s specied by the cell manufacturer. See Figure 3.1 for a graphic representation of the cell operating region. This is generated text for gtxt. 3.11 CHARGED, FULLY A battery is considered fully charged when the maximum amount of electrical capacity, as specied by the manufacturer, is stored in the ba
35、ttery. 3.12 COMPONENT, CURRENT-LIMITING Any component employed to limit current during abnormal conditions. Current-limiting components include resistors, fuses, or thermal cutoffs. 3.13 CURRENT, ABNORMAL CHARGING Charging current to a primary cell or battery under fault condition. 3.14 DISCHARGED,
36、COMPLETELY A primary cell or battery is considered completely discharged if the closed circuit voltage is less than 0.2 V, when connected to a 100-W resistive load and the short- circuit current has been reduced to less than 1 mA. 3.15 DISCHARGE, FORCED Discharge of a battery by connection in series
37、 with an external power source so as to drive the battery into polarity reversal. Figure 3.1 Diagram representing an example of a cell operating region (from the Battery Association of Japan) MARCH 13, 2012 LITHIUM BATTERIES - UL 1642 7UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION
38、OR DISTRIBUTION WITHOUT PERMISSION FROM UL 3.16 DISCHARGED, FULLY A condition of the battery representing depletion of 100% of its rated capacity (for a primary cell or battery) or depletion to its end-point-voltage as specied by the manufacturer (for a secondary cell or battery). 3.17 DISCHARGED, H
39、ALF A battery is considered half discharged when half of the batterys rated electrical capacity has been drained from it. 3.18 EXPLOSION When the cell or battery contents are forcibly expelled and the cell or battery casing is torn or split into two or more pieces. 3.19 MATERIAL, TOXIC Any material
40、having a toxic hazard rating of 2, moderate, in the Sax Dangerous Properties of Industrial Materials reference book or related reference guide. 3.20 MAXIMUM CHARGING CURRENT (lithium ion systems) The maximum charging current in the cell operating region, which is specied by the cell manufacturer. 3.
41、21 POUCH CELL A cell which is often prismatic in shape and whose contents are enclosed within a sealed exible pouch rather than a rigid casing. 3.22 ROOM TEMPERATURE Approximately 23C (73F). 3.23 UPPER LIMIT CHARGING VOLTAGE (lithium ion systems) The highest charging voltage in the cell-operating re
42、gion specied by the cell manufacturer. This value is specied by the cell manufacturer and although it is a maximum limit, it may be lower than the maximum charging voltage parameter specied for the abnormal charging test. 3.24 VENTING When the battery or cell electrolyte is emitted as a liquid, drop
43、lets, or vapor from a designed vent or through a seal. CONSTRUCTION 4 General 4.1 Casing 4.1.1 The casing of a lithium battery shall have the strength and rigidity necessary to resist the abuses to which it may be subjected, without resulting in a risk of re. The casing of a user-replaceable lithium
44、 battery shall have the strength and rigidity necessary to resist the abuses to which it may be subjected without resulting in a risk of injury to persons. 4.1.2 A cell of a user-replaceable battery shall be in a rigid casing of sufficient strength to prevent exing. A tool providing the mechanical a
45、dvantage of a pliers, screwdriver, or hacksaw shall be the minimum capable of opening the user-replaceable cell casing, if opening of the casing will expose metallic lithium. Exception: This requirement does not apply to a cell containing less than 0.02 g (0.0007 oz) of lithium metal. MARCH 13, 2012
46、 LITHIUM BATTERIES - UL 1642 8UL COPYRIGHTED MATERIAL NOT AUTHORIZED FOR FURTHER REPRODUCTION OR DISTRIBUTION WITHOUT PERMISSION FROM UL 4.2 Electrolyte 4.2.1 A user-replaceable battery shall not contain pressurized vapor or liquid that could spray materials into the eyes or leak more than 5 mL of l
47、iquid when the battery casing is punctured under normal laboratory conditions, 23 2C (73 3.6F). 4.3 Use 4.3.1 A lithium battery shall be protected from abnormal charging currents during use. A battery tested and found acceptable for the charging current, I C (see Section 11), under fault conditions
48、specied by the manufacturer, shall be protected from larger charging currents in the end product application by: a) Two blocking components, such as diodes; or b) One blocking component and one current limiting component, such as a resistor or a fuse. The current limiting component shall limit the c
49、harging current to one-third the value used in the Abnormal Charging Test, Section 11. Exception No. 1: Charge protection in the battery circuit is not required in end product applications where a battery cannot be subjected to a charging current, such as a battery operated device. Exception No. 2: Protection components are not required for specic applications where a battery has been tested and found not to have a risk of explosion. Exceptio
