IEC 62813:2025
(Main)Lithium ion capacitors for use in electric and electronic equipment - Test methods for electrical characteristics
Lithium ion capacitors for use in electric and electronic equipment - Test methods for electrical characteristics
IEC 62813:2025 specifies the electrical characteristics (capacitance, internal resistance, discharge accumulated electric energy, and voltage maintenance rate) test methods of lithium-ion capacitors (LIC) for use in electric and electronic equipment.
This edition includes the following significant technical changes with respect to the previous edition:
a) The document has been restructured to comply with the ISO/IEC Directives, Part 2.
Condensateurs au lithium-ion destinés à être utilisés dans les équipements électriques et électroniques - Méthodes d'essai relatives aux caractéristiques électriques
L'IEC 62813:2025 spécifie les méthodes d’essai applicables aux caractéristiques électriques (capacité, résistance interne, énergie électrique cumulée de décharge et taux de maintien de la tension) des condensateurs au lithium-ion (LIC – Lithium‑Ion Capacitor) destinés à être utilisés dans les équipements électriques et électroniques.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) le document a été restructuré pour être conforme aux Directives ISO/IEC, Partie 2.
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IEC 62813 ®
Edition 2.0 2025-01
REDLINE VERSION
INTERNATIONAL
STANDARD
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Lithium-ion capacitors for use in electric and electronic equipment –
Test methods for electrical characteristics
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IEC 62813 ®
Edition 2.0 2025-01
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Lithium-ion capacitors for use in electric and electronic equipment –
Test methods for electrical characteristics
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.060.99 ISBN 978-2-8327-0150-8
– 2 – IEC 62813:2025 RLV © IEC 2025
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Test methods . 8
4.1 Test requirements . 8
4.1.1 Standard atmospheric conditions for tests . 8
4.1.2 Standard atmospheric conditions for measurements . 8
4.1.3 Pre-conditioning . 8
4.2 Measurement . 8
4.2.1 Capacitance, discharge accumulated electric energy, and internal
resistance . 8
4.2.2 Measurement for voltage maintenance rate . 13
4.3 Calculation . 15
4.3.1 Calculation of capacitance and discharge accumulated electric energy . 15
4.3.2 Calculation of internal resistance . 17
4.3.3 Calculation of voltage maintenance rate . 18
Annex A (informative) Endurance test (continuous application of rated voltage at high
temperature) . 19
A.1 General . 19
A.2 Test procedure . 19
A.2.1 Test conditions . 19
A.2.2 Test procedure . 19
A.2.3 Requirements . 19
Annex B (informative) Calculation of the measuring currents based on the propagated
error . 21
B.1 General . 21
B.2 Measurement propagated error and measuring currents . 21
Annex C (informative) Procedures for defining the measuring current of LIC with
uncertain nominal internal resistance . 24
C.1 General . 24
C.2 Defining procedures of measuring current for LIC . 24
Bibliography . 25
Figure 1 – Basic circuit for measuring capacitance, discharge accumulated electric
energy, and internal resistance . 11
Figure 2 – Voltage profile for measuring capacitance, discharge accumulated electric
energy, and internal resistance . 13
Figure 3 – Basic circuit for measuring the voltage maintenance rate . 14
Figure 4 – Voltage profile for measuring voltage maintenance rate . 15
Figure C.1 – Flowchart of current setting procedures . 24
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
LITHIUM-ION CAPACITORS FOR USE
IN ELECTRIC AND ELECTRONIC EQUIPMENT –
TEST METHODS FOR ELECTRICAL CHARACTERISTICS
FOREWORD
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– 4 – IEC 62813:2025 RLV © IEC 2025
IEC 62813 has been prepared by IEC technical committee 40: Capacitors and resistors for
electronic equipment. It is an International Standard.
This second edition cancels and replaces the first edition published in 2015. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) The document has been restructured to comply with the ISO/IEC Directives, Part 2.
The text of this International Standard is based on the following documents:
Draft Report on voting
40/3178/FDIS 40/3195/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
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LITHIUM-ION CAPACITORS FOR USE
IN ELECTRIC AND ELECTRONIC EQUIPMENT –
TEST METHODS FOR ELECTRICAL CHARACTERISTICS
1 Scope
This International Standard specifies the electrical characteristics (capacitance, internal
resistance, discharge accumulated electric energy, and voltage maintenance rate) test methods
of lithium-ion capacitors (LIC) for use in electric and electronic equipment.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies.
For undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60068-1:2013, Environmental testing – Part 1: General and guidance
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in stand
...
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