Safety of primary and secondary lithium cells and batteries during transport (IEC 62281:2016)

This International Standard specifies test methods and requirements for primary and
secondary (rechargeable) lithium cells and batteries to ensure their safety during transport
other than for recycling or disposal. Requirements specified in this standard do not apply in
those cases where special provisions given in the relevant regulations, listed in 7.3, provide
exemptions.
NOTE Different standards may apply for lithium-ion traction battery systems used for electrically propelled road
vehicles.

Sicherheit von Primär- und Sekundär-Lithiumbatterien beim Transport (IEC 62281:2016)

Sécurité des piles et des accumulateurs au lithium pendant le transport (IEC 62281:2016)

NEW!IEC 62281:2016 est disponible sous forme de IEC 62281:2016 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.
IEC 62281:2016 spécifie les méthodes d’essai et les exigences pour les éléments et les batteries de piles et d'accumulateurs au lithium afin de s'assurer de leur sécurité pendant les opérations de transport autres que celles relatives à leur recyclage ou leur mise au rebut. Les exigences spécifiées dans la présente norme ne s’appliquent pas aux cas pour lesquels des dispositions spéciales prévues dans les réglementations applicables, énumérées en 7.3, accordent des exemptions. NOTE - Différentes normes peuvent s'appliquer aux systèmes de batteries de traction ion-lithium utilisés pour les véhicules routiers électriques. Cette troisième édition annule et remplace la deuxième édition parue en 2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - Suppression des treillis métalliques dans l’évaluation des critères d’essai pour une explosion; - Extension / modification des paramètres de l’essai de chocs, de façon à obtenir un comportement constant d’énergie pour les grandes batteries, ainsi que des explications dans la nouvelle Annexe A; - Modification de la méthode de court-circuit externe, de façon à pouvoir appliquer le court-circuit à de grandes batteries après leur retrait de la chambre thermique; - Diminution du diamètre d’élément de 20 mm à 18 mm, en faisant la distinction entre l’essai d’impact et l’essai d’écrasement; - Ajout de contenu possible de certificat de transport. Mots clés : méthodes d’essai et les exigences pour les éléments et les batteries de piles et d'accumulateurs au lithium, Certificat de transport

Varnost primarnih in sekundarnih litijevih členov in baterij med transportom (IEC 62281:2016)

Ta mednarodni standard določa preskusne metode ter zahteve za primarne in sekundarne (polnilne) litijeve člene in baterije za zagotovitev njihove varnosti med transportom, ne vključuje pa recikliranja oziroma odlaganja. Zahteve, določene v tem standardu, se ne uporabljajo za primere, v katerih posebne določbe, podane v ustreznih predpisih, navedenih v točki 7.3, določajo izjeme.
OPOMBA: za litij-ionske sisteme pogonskih akumulatorjev, ki se uporabljajo za cestna vozila na električni pogon, se lahko uporabljajo različni standardi.

General Information

Status
Published
Publication Date
14-May-2017
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
26-Apr-2017
Due Date
01-Jul-2017
Completion Date
15-May-2017

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SLOVENSKI STANDARD
SIST EN 62281:2017
01-junij-2017
1DGRPHãþD
SIST EN 62281:2013

9DUQRVWSULPDUQLKLQVHNXQGDUQLKOLWLMHYLKþOHQRYLQEDWHULMPHGWUDQVSRUWRP ,(&



Safety of primary and secondary lithium cells and batteries during transport (IEC

62281:2016)

Sicherheit von Primär- und Sekundär-Lithiumbatterien beim Transport (IEC 62281:2016)

Sécurité des piles et des accumulateurs au lithium pendant le transport (IEC
62281:2016)
Ta slovenski standard je istoveten z: EN 62281:2017
ICS:
29.220.10 3ULPDUQLþOHQLLQEDWHULMH Primary cells and batteries
SIST EN 62281:2017 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 62281:2017
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SIST EN 62281:2017
EUROPEAN STANDARD EN 62281
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2017
ICS 29.220.10 Supersedes EN 62281:2013
English Version
Safety of primary and secondary lithium cells and batteries
during transport
(IEC 62281:2016)

Sécurité des piles et des accumulateurs au lithium pendant Sicherheit von Primär- und Sekundär-Lithiumbatterien beim

le transport Transport
(IEC 62281:2016) (IEC 62281:2016)

This European Standard was approved by CENELEC on 2017-01-10. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,

Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,

Switzerland, Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN 62281:2017 E
---------------------- Page: 3 ----------------------
SIST EN 62281:2017
EN 62281:2017
European foreword

The text of document 35/1370/FDIS, future edition 3 of IEC 62281, prepared by IEC/TC 35 “Primary

cells and batteries” and SC 21A “Secondary cells and batteries containing alkaline or other non-acid

electrolytes” of IEC/TC 21 “Secondary cells and batteries" was submitted to the IEC-CENELEC

parallel vote and approved by CENELEC as EN 62281:2017.
The following dates are fixed:
• latest date by which the document has to be (dop) 2017-10-10
implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2020-01-10
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 62281:2013.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such

patent rights.
Endorsement notice

The text of the International Standard IEC 62281:2016 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 60068-2-6 NOTE Harmonized as EN 60068-2-6.
IEC 60068-2-27 NOTE Harmonized as EN 60068-2-27.
IEC 60086-4 NOTE Harmonized as EN 60086-4.
IEC 62133 NOTE Harmonized as EN 62133.
IEC 62660-1 NOTE Harmonized as EN 62660-1.
---------------------- Page: 4 ----------------------
SIST EN 62281:2017
IEC 62281
Edition 3.0 2016-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Safety of primary and secondary lithium cells and batteries during transport
Sécurité des piles et des accumulateurs au lithium pendant le transport
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220.10 ISBN 978-2-8322-3773-1

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 5 ----------------------
SIST EN 62281:2017
– 2 – IEC 62281:2016 © IEC 2016
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 7

4 Requirements for safety ................................................................................................. 10

4.1 General considerations ......................................................................................... 10

4.2 Quality plan .......................................................................................................... 11

4.3 Packaging ............................................................................................................. 11

5 Type testing, sampling and re-testing ............................................................................ 11

5.1 Type testing .......................................................................................................... 11

5.2 Overcharge protection .......................................................................................... 12

5.3 Battery assemblies................................................................................................ 12

5.3.1 General ......................................................................................................... 12

5.3.2 Small battery assemblies ............................................................................... 12

5.3.3 Large battery assemblies ............................................................................... 12

5.4 Sampling............................................................................................................... 12

5.5 Re-testing ............................................................................................................. 13

6 Test methods and requirements ..................................................................................... 13

6.1 General ................................................................................................................. 13

6.1.1 Cautionary notice........................................................................................... 13

6.1.2 Ambient temperature ..................................................................................... 14

6.1.3 Parameter measurement tolerances .............................................................. 14

6.1.4 Pre-discharge and pre-cycling ....................................................................... 14

6.2 Evaluation of test criteria ...................................................................................... 14

6.2.1 Shifting .......................................................................................................... 14

6.2.2 Distortion ....................................................................................................... 14

6.2.3 Short-circuit ................................................................................................... 14

6.2.4 Excessive temperature rise ............................................................................ 14

6.2.5 Leakage ........................................................................................................ 14

6.2.6 Venting .......................................................................................................... 15

6.2.7 Fire ................................................................................................................ 15

6.2.8 Rupture ......................................................................................................... 15

6.2.9 Explosion ....................................................................................................... 15

6.3 Tests and requirements – Overview ...................................................................... 15

6.4 Transport tests ...................................................................................................... 16

6.4.1 Test T-1: Altitude ........................................................................................... 16

6.4.2 Test T-2: Thermal cycling .............................................................................. 16

6.4.3 Test T-3: Vibration ......................................................................................... 17

6.4.4 Test T-4: Shock ............................................................................................. 17

6.4.5 Test T-5: External short-circuit ....................................................................... 18

6.4.6 Test T-6: Impact/crush ................................................................................... 19

6.5 Misuse tests .......................................................................................................... 21

6.5.1 Test T-7: Overcharge ..................................................................................... 21

6.5.2 Test T-8: Forced discharge ............................................................................ 21

6.6 Packaging test – Test P-1: Drop test ..................................................................... 21

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SIST EN 62281:2017
IEC 62281:2016 © IEC 2016 – 3 –

6.7 Information to be given in the relevant specification .............................................. 22

6.8 Test report ............................................................................................................ 22

6.9 Transport certificate .............................................................................................. 23

7 Information for safety ..................................................................................................... 23

7.1 Packaging ............................................................................................................. 23

7.2 Handling of battery cartons ................................................................................... 23

7.3 Transport .............................................................................................................. 23

7.3.1 General ......................................................................................................... 23

7.3.2 Air transport................................................................................................... 23

7.3.3 Sea transport ................................................................................................. 23

7.3.4 Land transport ............................................................................................... 23

7.3.5 Classification ................................................................................................. 23

7.4 Display and storage .............................................................................................. 24

8 Instructions for packaging and handling during transport – Quarantine .......................... 24

9 Marking ......................................................................................................................... 24

9.1 Marking of primary and secondary (rechargeable) cells and batteries ................... 24

9.2 Marking of the packaging and shipping documents ............................................... 24

Annex A (informative) Shock test – adjustment of acceleration for large batteries ................ 25

A.1 General ................................................................................................................. 25

A.2 Shock energy depends on mass, acceleration, and pulse duration ........................ 25

A.3 The constant acceleration approach ...................................................................... 26

A.4 The constant energy approach .............................................................................. 26

Bibliography .......................................................................................................................... 28

Figure 1 – Example of a test set-up for the impact test.......................................................... 20

Figure A.1 – Half sine shock for batteries (constant peak acceleration) ................................. 26

Figure A.2 – Half sine shock for batteries (constant energy) ................................................. 27

Table 1 – Number of primary test cells and batteries for type testing .................................... 12

Table 2 – Number of secondary test cells and batteries for type testing ................................ 13

Table 3 – Number of packages with primary or secondary test cells and batteries................. 13

Table 4 – Mass loss limits ..................................................................................................... 15

Table 5 – Transport and packaging tests and requirements .................................................. 16

Table 6 – Vibration profile (sinusoidal) .................................................................................. 17

Table 7 – Shock parameters ................................................................................................. 18

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SIST EN 62281:2017
– 4 – IEC 62281:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF PRIMARY AND SECONDARY LITHIUM CELLS
AND BATTERIES DURING TRANSPORT
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 62281 has been prepared jointly by IEC technical committee 35:

Primary cells and batteries and subcommittee 21A: Secondary cells and batteries containing

alkaline or other non-acid electrolytes, of IEC technical committee 21: Secondary cells and

batteries.

This third edition cancels and replaces the second edition, published in 2012, and constitutes

a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:

a) Deletion of the wire mesh screen from the evaluation of test criteria for an explosion;

b) Extension / modification of the shock test parameters so as to achieve constant energy

behaviour for large batteries as well as explanations in a new Annex A;

c) Modification of the external short-circuit method so as to allow the short-circuit to be

applied to large batteries after they have been removed from the temperature chamber;

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SIST EN 62281:2017
IEC 62281:2016 © IEC 2016 – 5 –

d) Change of the cell diameter distinguishing between impact and crush test from 20 mm to

18 mm;
e) Addition of possible content for a transport certificate.
The text of this standard is based on the following documents:
FDIS Report on voting
35/1370/FDIS 35/1371/RVD

Full information on the voting for the approval of this International Standard can be found in

the report on voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct

understanding of its contents. Users should therefore print this document using a

colour printer.
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SIST EN 62281:2017
– 6 – IEC 62281:2016 © IEC 2016
INTRODUCTION

Primary lithium cells and batteries were first introduced in military applications in the 1970s.

At that time, little commercial interest and no industrial standards existed. Consequently, the

United Nations (UN) Committee of Experts on the Transport of Dangerous Goods, although

usually referring to industrial standards for testing and criteria, introduced a sub-section in the

Manual of tests and criteria concerning safety tests relevant to transport of primary lithium

cells and batteries. Meanwhile, commercial interest in primary and secondary (rechargeable)

lithium cells and batteries has grown and several industrial standards exist. However, the

existing IEC standards are manifold, not completely harmonized, and not necessarily relevant

to transport. They are not suitable to be used as a source of reference in the UN Model

Regulations. Therefore this group safety standard has been prepared to harmonize the tests

and requirements relevant to transport.

This International Standard applies to primary and secondary (rechargeable) lithium cells and

batteries containing lithium in any chemical form: lithium metal, lithium alloy or lithium-ion.

Lithium-metal and lithium alloy primary electrochemical systems use metallic lithium and

lithium alloy, respectively, as the negative electrode. Lithium-ion secondary electrochemical

systems use intercalation compounds (intercalated lithium exists in an ionic or quasi-atomic

form within the lattice of the electrode material) in the positive and in the negative electrodes.

This International Standard also applies to lithium polymer cells and batteries, which are

considered either as primary lithium-metal cells and batteries or as secondary lithium-ion cells

and batteries, depending on the nature of the material used in the negative electrode.

The history of transporting primary and secondary lithium cells and batteries is worth noting.

Since the 1970s, over ten billion primary lithium cells and batteries have been transported,

and since the early 1990s, over one billion secondary (rechargeable) lithium cells and

batteries utilizing a lithium-ion system have been transported. As the number of primary and

secondary lithium cells and batteries to be transported is increasing, it is appropriate to also

include in this standard the safety testing of packaging used for the transportation of these

products.

This International Standard specifically addresses the safety of primary and secondary lithium

cells and batteries during transport and also the safety of the packaging used.

The UN Manual of Tests and Criteria [12] distinguishes between lithium metal and lithium

alloy cells and batteries on the one hand, and lithium ion and lithium polymer cells and

batteries on the other hand. While it defines that lithium metal and lithium alloy cells and

batteries can be either primary (non-rechargeable) or rechargeable, it always considers

lithium ion cells and batteries as rechargeable. However, test methods in the UN Manual of

Tests and Criteria are the same for both secondary lithium metal and lithium alloy cells and

batteries and lithium ion and lithium polymer cells and batteries. The concept is only needed

to distinguish between small and large battery assemblies. Battery assemblies assembled

from (primary or secondary) lithium metal and lithium alloy batteries are distinguished by the

aggregate lithium content of all anodes (measured in grams), while battery assemblies

assembled from lithium ion or lithium polymer batteries are distinguished by their “nominal”

energy (measured in Watt-hours).
___________
Numbers in square brackets refer to the Bibliography.
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SIST EN 62281:2017
IEC 62281:2016 © IEC 2016 – 7 –
SAFETY OF PRIMARY AND SECONDARY LITHIUM CELLS
AND BATTERIES DURING TRANSPORT
1 Scope

This International Standard specifies test methods and requirements for primary and

secondary (rechargeable) lithium cells and batteries to ensure their safety during transport

other than for recycling or disposal. Requirements specified in this standard do not apply in

those cases where special provisions given in the relevant regulations, listed in 7.3, provide

exemptions.

NOTE Different standards may apply for lithium-ion traction battery systems used for electrically propelled road

vehicles.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1
aggregate lithium content
total lithium content of the cells comprising a battery
3.2
battery

one or more cells electrically connected and fitted in a case, with terminals, markings and

protective devices etc., as necessary for use

Note 1 to entry: This definition is different from the definition used in the UN Manual of Tests and Criteria [12].

The standard was, however, carefully prepared so that the test set-up for each test is harmonized with the UN

Manual.

Note 2 to entry: A cell used in equipment where the equipment is providing the functions of a case, terminals,

markings and protective devices etc., as necessary for use in the equipment, is, for the purposes of this standard,

considered to be a battery.

[SOURCE: IEC 60050-482:2004 [1], 482-01-04, modified – reference to "electrically

connected" has been added]
3.3
battery assembly
battery comprising two or more batteries
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SIST EN 62281:2017
– 8 – IEC 62281:2016 © IEC 2016
3.4
button (cell or battery)
coin (cell or battery)

small round cell or battery where the overall height is less than the diameter, e.g. in the shape

of a button or a coin

[SOURCE: IEC 60050-482:2004, 482-02-40, modified – the term "small round cell or battery"

replaces the original "cell with a cylindrical shape"]
3.5
cell

basic functional unit, consisting of an assembly of electrodes, electrolyte, container, terminals

and, usually, separators that is a source of electric energy obtained by direct conversion of

chemical energy
[SOURCE: IEC 60050-482:2004, 482-01-01]
3.6
component cell
cell contained in a battery
3.7
cycle (of a secondary (rechargeable) cell or battery)

set of operations that is carried out on a secondary (rechargeable) cell or battery and is

repeated regularly in the same sequence

Note 1 to entry: These operations may consist of a sequence of a discharge followed by a charge or a charge

followed by a discharge under specified conditions. This sequence may include rest periods.

[SOURCE: IEC 60050-482:2004, 482-05-28, modified – the words "secondary (rechargeable)"

have been added]
3.8
cylindrical (cell or battery)

round cell or battery in which the overall height is equal to or greater than the diameter

[SOURCE: IEC 60050-482:2004, 482-02-39, modified – the words "round cell or battery"

replace the original "cell with a cylindrical shape"]
3.9
depth of discharge
DOD
percentage of rated capacity discharged from a battery
3.10
first cycle

initial cycle of a secondary (rechargeable) cell or battery following completion of all

manufacturing, formation and quality control processes
3.11
fully charged

state of charge of a secondary (rechargeable) cell or battery corresponding to 0 % depth of

discharge
3.12
fully discharged
state of charge of a cell or battery corresponding to 100 % depth of discharge
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SIST EN 62281:2017
IEC 62281:2016 © IEC 2016 – 9 –
3.13
large battery
battery with a gross mass of more than 12 kg
3.14
large cell
cell with a gross mass of more than 500 g
3.15
lithium cell (primary or secondary (rechargeable))

cell containing a non-aqueous electrolyte and a negative electrode of lithium or containing

lithium

Note 1 to entry: Depending on the design features chosen, a lithium cell may be primary or secondary

(rechargeable).

[SOURCE: IEC 60050-482:2004, 482-01-06, modified – the notion of "primary or secondary

(rechargeable)" has been added]
3.16
lithium content

mass of lithium in the negative electrode of a lithium metal or lithium alloy cell or battery in the

undischarged or fully charged state
3.17
lithium ion cell or battery

rechargeable non-aqueous cell or battery in which the positive and negative electrodes are

both intercalation compounds constructed with no metallic lithium in either electrode

Note 1 to entry: Intercalated lithium exists in an ionic or quasi-atomic form with the lattice of the electrode

material.

Note 2 to entry: A lithium polymer cell or battery that uses lithium ion chemistries, as described herein, is

considered as a lithium ion cell or battery.
3.18
nominal energy

energy value of a cell or battery determined under specified conditions and declared

...

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