ISO/PAS 16898:2012
(Main)Electrically propelled road vehicles — Dimensions and designation of secondary lithium-ion cells
Electrically propelled road vehicles — Dimensions and designation of secondary lithium-ion cells
ISO/IEC PAS 16898:2012 specifies a designation system as well as the shapes and dimensions for secondary lithium-ion cells for integration into battery packs and systems used in electrically propelled road vehicles including the position of the terminals and any over-pressure safety device (OPSD). It is related to cylindrical, prismatic and pouch cells. The cell designation according to ISO/IEC PAS 16898:2012 is intended to be applied to the cells used for electrically propelled road vehicles. ISO/IEC PAS 16898:2012 does not apply to cells specifically used for mopeds, motorcycles and vehicles not primarily defined as road vehicles, i.e. material handling trucks or forklifts. The cell dimensions listed in ISO/IEC PAS 16898:2012 are recommended but not restricted for use in passenger cars up to 3,5 t. The inner design, the cell chemistry, the electrical characteristics and any further properties of the cells are not defined in ISO/IEC PAS 16898:2012.
Véhicules routiers à propulsion électrique — Dimensions et désignation d’accumulateurs lithium-ion
General Information
Standards Content (Sample)
PUBLICLY ISO/IEC
AVAILABLE PAS
SPECIFICATION 16898
First edition
2012-12-01
Electrically propelled road vehicles —
Dimensions and designation of
secondary lithium-ion cells
Véhicules routiers à propulsion électrique — Dimensions et
désignation d’accumulateurs lithium-ion
Reference number
ISO/IEC PAS 16898:2012(E)
©
ISO/IEC 2012
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ISO/IEC PAS 16898:2012(E)
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ii © ISO/IEC 2012 – All rights reserved
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ISO/IEC PAS 16898:2012(E)
Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Shape of construction and constituent parts of secondary lithium-ion cell .2
4.1 Shape of construction . 2
4.2 Position of the OPSD . 5
5 Designation of cell . 5
6 Measurement conditions . 6
7 Dimensions for the selected cell design . 6
7.1 General . 6
7.2 Cylindrical cells . 6
7.3 Prismatic cells . 7
7.4 Pouch cells . 9
© ISO/IEC 2012 – All rights reserved iii
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ISO/IEC PAS 16898:2012(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
In other circumstances, particularly when there is an urgent market requirement for such documents, a
technical committee may decide to publish other types of document:
— an ISO/IEC Publicly Available Specification (ISO/IEC PAS) represents an agreement between
technical experts in an ISO working group and is accepted for publication if it is approved by more
than 50 % of the members of the parent committee casting a vote;
— an ISO/IEC Technical Specification (ISO/IEC TS) represents an agreement between the members of
a technical committee and is accepted for publication if it is approved by 2/3 of the members of the
committee casting a vote.
An ISO/IEC PAS or ISO/IEC TS is reviewed after three years in order to decide whether it will be confirmed
for a further three years, revised to become an International Standard, or withdrawn. If the ISO/IEC PAS
or ISO/IEC TS is confirmed, it is reviewed again after a further three years, at which time it must either
be transformed into an International Standard or be withdrawn.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO/IEC PAS 16898 was prepared by Technical Committee ISO/TC 22, Road vehicles, Subcommittee
SC 21, Electrically propelled road vehicles.
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ISO/IEC PAS 16898:2012(E)
Introduction
The vehicle traction battery system as a large and very costly component of an electrically propelled
vehicle has a huge influence on the vehicle design. Depending on vehicle dimensions and package
constraints, the shape of battery packs and systems has to follow a top-down procedure. The dimensional
requirements on lithium-ion cells for automotive application are given by the battery system, which is
influenced by the vehicle design. Therefore, this Publicly Available Specification (PAS) was developed in
a joint ISO and IEC Working Group consisting of experts from the automotive industry, the automotive
suppliers, the battery and the cell industry.
Today there is a huge variety of different cell types and dimensions on the market. When a traction
battery system design is finished based on one specific cell, a change to another cell or cell supplier is
quite difficult or may not be possible. It is necessary to reduce this variety in order to:
— lower the cell costs through encouraging competition and allowing cell suppliers access to the
worldwide market,
— enable an exchange of the cells from different suppliers during and after the battery system
development, and
— support the battery system design by specifying basic outer dimensions per known design type of
lithium-ion cells for automotive traction battery systems.
By specifying only a certain number of cell dimensions for vehicle propulsion, this PAS aims to reduce
the number of different dimensions. It should furthermore ensure that cells of the dimensions as listed
in this PAS will be used in the long term by the vehicle manufacturers for their current and future
models. Cells of these dimensions need to be available for the vehicle production time, plus the vehicle
life time, plus the legally required spare part availability time.
This PAS lists only those battery cells, chosen from the currently existing variety, which will be used for
the current and planned vehicle models and which are currently available. This PAS does not exclude the
usage of other cell dimensions in vehicle models.
This PAS is not intended to restrict the development of cell technology. Therefore no requirements are
specified in this PAS for the cell chemistry, the usage of materials or any electrical characteristics.
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PUBLICLY AVAILABLE SPECIFICATION ISO/IEC PAS 16898:2012(E)
Electrically propelled road vehicles — Dimensions and
designation of secondary lithium-ion cells
1 Scope
This Publicly Available Specification (PAS) specifies a designation system as well as the shapes and
dimensions for secondary lithium-ion cells for integration into battery packs and systems used in
electrically propelled road vehicles including the position of the terminals and any over-pressure safety
device (OPSD). It is related to cylindrical, prismatic and pouch cells.
The cell designation according to this PAS is intended to be applied to the cells used for electrically
propelled road vehicles. This PAS does not apply to cells specifically used for mopeds, motorcycles and
vehicles not primarily defined as road vehicles, i.e. material handling trucks or forklifts.
The cell dimensions listed in this PAS are recommended but not restricted for use in passenger cars up
to 3,5 t.
The inner design, the cell chemistry, the electrical characteristics and any further properties of the cells
are not defined in this PAS.
2 Normative references
The following referenced documents are indispensable for the application 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 62660-1, Secondary lithium-ion cells for the propulsion of electric road vehicles — Part 1: Performance testing
3 Terms and definitions
Fo
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