IEC 62576:2018
(Main)Electric double-layer capacitors for use in hybrid electric vehicles - Test methods for electrical characteristics
Electric double-layer capacitors for use in hybrid electric vehicles - Test methods for electrical characteristics
IEC 62576:2018 describes the methods for testing electrical characteristics of electric double-layer capacitor cells (hereinafter referred to as capacitor) to be used for peak power assistance in hybrid electric vehicles. This second edition cancels and replaces the first edition published in 2009. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) information on applicability of this document has been added in Clause 1;
b) the definitions of some terms in Clause 3 have been improved;
c) the description of test procedures in Clause 4 has been clarified;
d) information on endurance cycling test has been added (Annex E).
Condensateurs électriques à double couche pour véhicules électriques hybrides - Méthodes d'essai des caractéristiques électriques
L'IEC 62576:2018 décrit les méthodes d'essai des caractéristiques électriques des cellules de condensateur électrique à double couche (ci-après dénommé "condensateur") utilisées pour l'assistance en puissance de crête dans les véhicules électriques hybrides. Cette deuxième édition annule et remplace la première édition parue en 2009. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) des informations sur le champ d'application du présent document ont été ajoutées dans l'Article 1;
b) les définitions de certains termes de l'Article 3 ont été améliorées;
c) la description des procédures d'essai de l'Article 4 a été clarifiée;
d) des informations sur l'essai cyclique d'endurance ont été ajoutées (Annexe E).
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IEC 62576 ®
Edition 2.0 2018-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electric double-layer capacitors for use in hybrid electric vehicles –
Test methods for electrical characteristics
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
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International Standards for all electrical, electronic and related technologies.
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IEC 62576 ®
Edition 2.0 2018-02
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Electric double-layer capacitors for use in hybrid electric vehicles –
Test methods for electrical characteristics
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.060.99; 43.120 ISBN 978-2-8322-5436-3
– 2 – IEC 62576:2018 RLV © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Tests and measurement procedures methods . 10
4.1 Capacitance, internal resistance, and maximum power density . 10
4.1.1 Circuit for measurement . 10
4.1.2 Test equipment . 11
4.1.3 Measurement procedure . 12
Measurement .
4.1.4 Calculation method for capacitance . 13
4.1.5 Calculation method for internal resistance . 13
4.1.6 Calculation method for maximum power density . 14
4.2 Voltage maintenance characteristics . 14
4.2.1 Circuit for measurement . 14
4.2.2 Test equipment . 15
4.2.3 Measurement procedures . 15
Measurement .
4.2.4 Calculation of voltage maintenance rate . 16
4.3 Energy efficiency . 16
4.3.1 Circuit for test . 16
4.3.2 Test equipment . 16
4.3.3 Measurement procedures . 17
Measurement .
4.3.4 Calculation of energy efficiency . 19
Annex A (informative) Endurance test: continuous application of rated voltage at high
temperature . 20
A.1 General . 20
A.2 Test procedure . 20
A.2.1 Test condition . 20
A.2.2 Test procedure . 20
A.2.3 Judgment criteria . 20
Annex B (informative) Heat equilibrium time of capacitors . 22
B.1 General . 22
B.2 Heat equilibrium time of capacitors . 22
Annex C (informative) Charging/discharging efficiency and measurement current . 24
C.1 General . 24
C.2 Charging efficiency, discharging efficiency, and current . 24
Annex D (informative) Procedures for setting the measurement current of capacitor
with uncertain nominal internal resistance . 26
D.1 General . 26
D.2 Current setting procedures for measurement of capacitor . 26
D.3 Example of setting current for determining capacitor characteristics . 26
Annex E (informative) Endurance cycling test . 27
E.1 General . 27
E.2 Test method . 27
E.2.1 Test temperature . 27
E.2.2 Test equipment . 27
E.2.3 Preconditioning . 27
E.2.4 Initial measurements . 27
E.2.5 Test steps . 27
E.2.6 Test . 28
E.2.7 End of test criteria . 28
E.2.8 Post-treatment . 29
E.2.9 Final measurement . 29
E.2.10 Acceptance criteria . 29
Bibliography . 30
Figure 1 – Basic circuit for measuring capacitance, internal resistance and maximum
power density . 11
Figure 2 – Voltage–time characteristics between capacitor terminals in capacitance
and internal resistance measurement . 12
Figure 3 – Basic circuit for measuring the voltage maintenance characteristics . 14
Figure 4 – Time characteristics of voltage between capacitor terminals in voltage
maintenance test . 15
Figure 5 – Voltage-time characteristics between capacitor terminals in
charging/discharging efficiency test . 17
Figure B.1 – Heat equilibrium times of capacitors (from 85 °C to 25 °C) . 22
Figure B.2 – Heat equilibrium times of capacitors (from –40 °C to 25 °C) . 23
Figure – Temperature changes of capacitors' central portions (85 °C→25 °C) .
Figure – Temperature changes of capacitors' central portions (–40 °C→25 °C) .
Figure B.3 – Temperature changes of capacitors' central portions . 23
Figure E.1 – Endurance cycling test steps . 28
Table D.1 – Example of setting current for measurement of capacitor . 26
– 4 – IEC 62576:2018 RLV © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRIC DOUBLE-LAYER CAPACITORS FOR USE IN
HYBRID ELECTRIC VEHICLES – TEST METHODS
FOR ELECTRICAL CHARACTERISTICS
FOREWORD
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...
IEC 62576 ®
Edition 2.0 2018-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric double-layer capacitors for use in hybrid electric vehicles –
Test methods for electrical characteristics
Condensateurs électriques à double couche pour véhicules électriques hybrides –
Méthodes d'essai des caractéristiques électriques
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
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CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
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IEC 62576 ®
Edition 2.0 2018-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electric double-layer capacitors for use in hybrid electric vehicles –
Test methods for electrical characteristics
Condensateurs électriques à double couche pour véhicules électriques hybrides –
Méthodes d'essai des caractéristiques électriques
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 31.060.99; 43.120 ISBN 978-2-8322-5341-0
– 2 – IEC 62576:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Tests methods . 10
4.1 Capacitance, internal resistance, and maximum power density . 10
4.1.1 Circuit for measurement . 10
4.1.2 Test equipment . 10
4.1.3 Measurement procedure . 11
4.1.4 Calculation method for capacitance . 12
4.1.5 Calculation method for internal resistance . 12
4.1.6 Calculation method for maximum power density . 13
4.2 Voltage maintenance characteristics . 13
4.2.1 Circuit for measurement . 13
4.2.2 Test equipment . 14
4.2.3 Measurement procedures . 15
4.2.4 Calculation of voltage maintenance rate . 16
4.3 Energy efficiency . 16
4.3.1 Circuit for test . 16
4.3.2 Test equipment . 16
4.3.3 Measurement procedures . 17
4.3.4 Calculation of energy efficiency . 18
Annex A (informative) Endurance test: continuous application of rated voltage at high
temperature . 20
A.1 General . 20
A.2 Test procedure . 20
A.2.1 Test condition . 20
A.2.2 Test procedure . 20
A.2.3 Judgment criteria . 20
Annex B (informative) Heat equilibrium time of capacitors . 22
B.1 General . 22
B.2 Heat equilibrium time of capacitors . 22
Annex C (informative) Charging/discharging efficiency and measurement current . 24
C.1 General . 24
C.2 Charging efficiency, discharging efficiency, and current . 24
Annex D (informative) Procedures for setting the measurement current of capacitor
with uncertain nominal internal resistance . 26
D.1 General . 26
D.2 Current setting procedures for measurement of capacitor . 26
D.3 Example of setting current for determining capacitor characteristics . 26
Annex E (informative) Endurance cycling test . 27
E.1 General . 27
E.2 Test method . 27
E.2.1 Test temperature . 27
E.2.2 Test equipment . 27
E.2.3 Preconditioning . 27
E.2.4 Initial measurements . 27
E.2.5 Test steps . 27
E.2.6 Test . 28
E.2.7 End of test criteria . 28
E.2.8 Post treatment . 29
E.2.9 Final measurement . 29
E.2.10 Acceptance criteria . 29
Bibliography . 30
Figure 1 – Basic circuit for measuring capacitance, internal resistance and maximum
power density . 10
Figure 2 – Voltage–time characteristics between capacitor terminals in capacitance
and internal resistance measurement . 11
Figure 3 – Basic circuit for measuring the voltage maintenance characteristics . 14
Figure 4 – Time characteristics of voltage between capacitor terminals in voltage
maintenance test . 15
Figure 5 – Voltage-time characteristics between capacitor terminals in
charging/discharging efficiency test . 17
Figure B.1 – Heat equilibrium times of capacitors (from 85 °C to 25 °C) . 22
Figure B.2 – Heat equilibrium times of capacitors (from –40 °C to 25 °C) . 23
Figure B.3 – Temperature changes of capacitors' central portions . 23
Figure E.1 – Endurance cycling test steps . 28
Table D.1 – Example of setting current for mea
...
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