IEC 62932-1:2020
(Main)Flow battery energy systems for stationary applications - Part 1: Terminology and general aspects
Flow battery energy systems for stationary applications - Part 1: Terminology and general aspects
IEC 62932-1:2020 relates to flow battery energy systems (FBES) used in electrical energy storage (EES) applications and provides the main terminology and general aspects of this technology, including terms necessary for the definition of unit parameters, test methods, safety and environmental issues.
Systèmes de production d'énergie à batteries d'accumulateurs à circulation d'électrolyte pour les applications stationnaires - Partie 1: Terminologie et aspects généraux
L'IEC 62932-1:2020 traite des systèmes de production d’énergie à batteries d’accumulateurs à circulation d’électrolyte (FBES – Flow Battery Energy Systems) utilisés dans les applications de stockage d'énergie électrique (EES – Electrical Energy Storage) et fournit la terminologie principale et indique les aspects généraux de cette technologie, y compris les termes nécessaires à la définition des paramètres unitaires, des méthodes d’essai, de la sécurité et des problèmes environnementaux.
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IEC 62932-1 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
colour
inside
Flow battery energy systems for stationary applications –
Part 1: Terminology and general aspects
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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copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
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3, rue de Varembé info@iec.ch
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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 corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
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IEC 62932-1 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
colour
inside
Flow battery energy systems for stationary applications –
Part 1: Terminology and general aspects
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.220.99 ISBN 978-2-8322-7852-9
– 2 – IEC 62932-1:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviated terms . 5
3.1 Terms and definitions . 5
3.2 Abbreviated terms . 12
4 Descriptive overview of the flow battery . 12
4.1 Diagram of a flow battery system (FBS) . 12
4.2 Component descriptions and the boundaries . 13
4.3 Diagram of a flow battery energy system (FBES) . 13
4.4 Component descriptions and the boundaries of FBES . 14
Annex A (informative) Components of the flow battery energy system . 15
A.1 General . 15
A.2 Stacks – Revised description . 15
A.3 Fluid system . 15
Annex B (informative) Types of chemistries . 16
Figure 1 – Flow battery system (FBS) . 13
Figure 2 – Flow battery energy system (FBES) . 14
Table B.1 – Example chemistries of flow batteries . 16
Table B.2 – Example chemistries of hybrid flow batteries . 16
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –
Part 1: Terminology and general aspects
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 62932-1 has been prepared by IEC technical committee 21:
Secondary cells and batteries, in collaboration with IEC technical committee 105: Fuel cell
technologies.
The text of this International Standard is based on the following documents:
FDIS Report on voting
21/1027/FDIS 21/1037/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.
A list of all parts in the IEC 62932 series, published under the general title Flow battery energy
systems for stationary applications, can be found on the IEC website.
– 4 – IEC 62932-1:2020 © IEC 2020
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.
FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –
Part 1: Terminology and general aspects
1 Scope
This part of IEC 62932 relates to flow battery energy systems (FBES) used in electrical energy
storage (EES) applications and provides the main terminology and general aspects of this
technology, including terms necessary for the definition of unit parameters, test methods, safety
and environmental issues.
2 Normative references
There are no normative references in this document.
3 Terms, definitions and abbreviated terms
3.1 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
3.1.1
ambient temperature
environmental temperature around a flow battery energy system
3.1.2
auxiliary energy
energy consumed by all the auxiliary equipment and components of a flow battery and of a flow
battery energy system
Note 1 to entry: The equipment and components include, but are not limited to, battery management system, battery
support system, fluid circulation system.
3.1.3
battery management system
BMS
electronic system associated with a flow battery energy system which monitors and/or manages
its state, calculates secondary data, reports that data and/or controls its environment to
influence the flow battery energy system’s performance and/or service life
Note 1 to entry: The function of the battery management system can be fully or partially assigned to the battery
pack and/or to equipment that uses flow battery energy store systems.
[SOURCE: IEC 61427-2:2015, 3.8, modified – admitted terms "battery management unit" and
"BMU" omitted, "battery" replaced by "flow battery energy system", Notes 2 to 4 deleted.]
– 6 – IEC 62932-1:2020 © IEC 2020
3.1.4
battery support system
BSS
auxiliary units, such as heat exchanger, ventilation system, safety system, and inert gas system,
used in an FBES, and which are not stacks, or part of the fluid circulation system, power
conversion system, or battery management system
Note 1 to entry: The battery support system is controlled by the battery management system.
3.1.5
charge
charging
operation during which a secondary cell or battery is supplied with electric energy
from an external circuit which results in chemical changes within the cell and thus the storage
of energy as chemical energy
Note 1 to entry: A charge operation is defined by its maximum voltage, current, duration and other conditions as
specified by the manufacturer.
[SOURCE: IEC 60050-482:2004, 482-05-27, modified – term "charging of a battery" separated
into "charge" and "charging" with "of a battery" as the domain, and addition of the note.]
3.1.6
cold standby
standby state requiring warm up before a demand to operate can be met
Note 1 to entry: A cold standby state may apply to redundant or stand-alone items.
Note 2 to entry: In this context "warm up" includes meeting any conditions required to operate as required (e.g.
achieving the required temperature, speed, pressure).
[SOURCE: IEC 60050-192:2015, 192-02-11, modified – "state" omitted from the term, and the
domain, "of an item", deleted.]
3.1.7
discharge
discharging
operation during which a secondary battery supplies electric energy to an
external circuit which results in chemical changes within the cell and the release of energy as
electrical energy
Note 1 to entry: A discharge operation is defined by its maximum voltage, current, duration and other conditions as
specified by the manufacturer.
3.1.8
emergency shutdown
rapid regulated shutdown of the flow battery energy system triggered by a protection system or
by manual intervention
[SOURCE: IEC 60050-415:1999, 415-01-11, modified – the word "regulated" added, and "wind
turbine" replaced by "flow battery energy system".]
3.1.9
emergency stop
function which is in
...
IEC 62932-1 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Flow battery energy systems for stationary applications –
Part 1: Terminology and general aspects
Systèmes de production d'énergie à batteries d’accumulateurs à circulation
d'électrolyte pour les applications stationnaires –
Partie 1: Terminologie et aspects généraux
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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
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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 corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
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IEC 62932-1 ®
Edition 1.0 2020-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Flow battery energy systems for stationary applications –
Part 1: Terminology and general aspects
Systèmes de production d'énergie à batteries d’accumulateurs à circulation
d'électrolyte pour les applications stationnaires –
Partie 1: Terminologie et aspects généraux
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.220.99 ISBN 978-2-8322-8536-7
– 2 – IEC 62932-1:2020 © IEC 2020
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references . 5
3 Terms, definitions and abbreviated terms . 5
3.1 Terms and definitions . 5
3.2 Abbreviated terms . 12
4 Descriptive overview of the flow battery . 12
4.1 Diagram of a flow battery system (FBS) . 12
4.2 Component descriptions and the boundaries . 13
4.3 Diagram of a flow battery energy system (FBES) . 13
4.4 Component descriptions and the boundaries of FBES . 14
Annex A (informative) Components of the flow battery energy system . 15
A.1 General . 15
A.2 Stacks – Revised description . 15
A.3 Fluid system . 15
Annex B (informative) Types of chemistries . 16
Figure 1 – Flow battery system (FBS) . 13
Figure 2 – Flow battery energy system (FBES) . 14
Table B.1 – Example chemistries of flow batteries . 16
Table B.2 – Example chemistries of hybrid flow batteries . 16
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –
Part 1: Terminology and general aspects
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 62932-1 has been prepared by IEC technical committee 21:
Secondary cells and batteries, in collaboration with IEC technical committee 105: Fuel cell
technologies.
The text of this International Standard is based on the following documents:
FDIS Report on voting
21/1027/FDIS 21/1037/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.
A list of all parts in the IEC 62932 series, published under the general title Flow battery energy
systems for stationary applications, can be found on the IEC website.
– 4 – IEC 62932-1:2020 © IEC 2020
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.
FLOW BATTERY ENERGY SYSTEMS FOR STATIONARY APPLICATIONS –
Part 1: Terminology and general aspects
1 Scope
This part of IEC 62932 relates to flow battery energy systems (FBES) used in electrical energy
storage (EES) applications and provides the main terminology and general aspects of this
technology, including terms necessary for the definition of unit parameters, test methods, safety
and environmental issues.
2 Normative references
There are no normative references in this document.
3 Terms, definitions and abbreviated terms
3.1 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
3.1.1
ambient temperature
environmental temperature around a flow battery energy system
3.1.2
auxiliary energy
energy consumed by all the auxiliary equipment and components of a flow battery and of a flow
battery energy system
Note 1 to entry: The equipment and components include, but are not limited to, battery management system, ba
...
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