Small craft -- Lithium-ion batteries

Petits navires -- Batteries lithium-ion

General Information

Status
Published
Publication Date
30-Mar-2021
Current Stage
5060 - Close of voting Proof returned by Secretariat
Start Date
02-Mar-2021
Completion Date
01-Mar-2021
Ref Project

Buy Standard

Draft
ISO/PRF TS 23625 - Small craft -- Lithium-ion batteries
English language
9 pages
sale 15% off
Preview
sale 15% off
Preview

Standards Content (sample)

TECHNICAL ISO/TS
SPECIFICATION 23625
First edition
Small craft — Lithium-ion batteries
PROOF/ÉPREUVE
Reference number
ISO/TS 23625:2021(E)
ISO 2021
---------------------- Page: 1 ----------------------
ISO/TS 23625:2021(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2021

All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may

be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting

on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address

below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2021 – All rights reserved
---------------------- Page: 2 ----------------------
ISO/TS 23625:2021(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 System design requirements .................................................................................................................................................................... 3

5 Safe operating limits ......................................................................................................................................................................................... 4

6 General lithium-ion battery installations .................................................................................................................................. 4

7 Fire protection and cell venting ............................................................................................................................................................ 5

8 Battery management system and testing.................................................................................................................................... 6

9 Manufacturer’s safety information and operator’s manual .................................................................................... 7

Annex A (informative) Battery thermal runaway .................................................................................................................................... 8

Bibliography ................................................................................................................................................................................................................................ 9

© ISO 2021 – All rights reserved PROOF/ÉPREUVE iii
---------------------- Page: 3 ----------------------
ISO/TS 23625:2021(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.

The procedures used to develop this document and those intended for its further maintenance are

described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the

different types of ISO documents should be noted. This document was drafted in accordance with the

editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).

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. Details of

any patent rights identified during the development of the document will be in the Introduction and/or

on the ISO list of patent declarations received (see www .iso .org/ patents).

Any trade name used in this document is information given for the convenience of users and does not

constitute an endorsement.

For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and

expressions related to conformity assessment, as well as information about ISO's adherence to the

World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/

iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 188, Small craft.

Any feedback or questions on this document should be directed to the user’s national standards body. A

complete listing of these bodies can be found at www .iso .org/ members .html.
iv PROOF/ÉPREUVE © ISO 2021 – All rights reserved
---------------------- Page: 4 ----------------------
TECHNICAL SPECIFICATION ISO/TS 23625:2021(E)
Small craft — Lithium-ion batteries
1 Scope

This document provides requirements and recommendations for the selection and installation of

lithium-ion batteries for boats. It applies to lithium-ion batteries and to battery systems with a capacity

greater than 600 Wh, installed on small craft for providing power for general electrical loads and/or to

electric propulsion systems. It is primarily intended for manufacturers and battery installers.

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:

— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
ampere interrupt capacity
AIC

maximum current a circuit breaker or fuse is rated to safely interrupt at a specific voltage

3.2
battery

collection of cells (3.7) wired in series (or series/parallel) and constituting a single physical unit

3.3
battery bank

set of batteries (3.2) electrically connected (parallel/series) to increase capacity and or voltage

3.4
battery capacity

capacity of the battery (3.2), expressed in ampere-hours (Ah) at a nominal voltage or in watt hours

(Wh), from the manufacturer’s specified fully charged to discharged voltage levels

Note 1 to entry: Ah capacity rating at a given discharge rate or time.
3.5
battery management system
BMS

system designed to protect a lithium-ion battery (3.2) from potentially damaging events, such as over

charging or discharging and high and low temperatures
3.6
battery system
battery (3.2) or batteries and all ancillary components
© ISO 2021 – All rights reserved PROOF/ÉPREUVE 1
---------------------- Page: 5 ----------------------
ISO/TS 23625:2021(E)
3.7
cell

fundamental building block that is inside a lithium-ion battery (3.2) where electrical energy is derived

from the insertion/extraction reactions of lithium ions or oxidation/reduction reaction of lithium

between the negative electrode and the positive electrode
3.8
C rating

measure of battery (3.2) charge and discharge rating expressed as a function of the rated Ah capacity

of the battery
Note 1 to entry: A 100 Ah battery charged or discharged at 100 A is a 1C rate.
3.9
contactor

protection relay/switch controlled by the battery management system (3.5) for battery (3.2) protection

3.10
high voltage cutout
HVC

battery management system's (3.5) response to a high voltage event (3.11) that protects the battery (3.2)

from over charging
3.11
high voltage event
HVE

condition where a cell (3.7) has been charged to a voltage above the manufacturer’s cell maximum

voltage limit
3.12
low voltage cutout
LVC

battery management system's (3.5) response to a low voltage event (3.13) that protects the battery (3.2)

from over discharging
3.13
low voltage event
LVE

condition where a cell (3.7) has been discharged beyond the cell manufacturer’s cell low voltage limit

3.14
main contactor

in the case of a multiple contactor (3.9) system [high voltage event (3.11), low voltage event (3.13), plus

the main], device intended to be the last one to open, or closest to the battery (3.2), and, in case of a

single contactor system, device intended to serve as high voltage cutout (3.10)/low voltage cutout (3.12)/

main protection
3.15
overcharging

charging a cell (3.7) above the cell manufacturer’s upper cell voltage limit, which may result in damage

to the cell
3.16
safe operating limits
SOL

set of voltage, temperature and other parameters, within which the battery (3.2) is intended to be

operated and which, if exceeded, initiates a battery management system (3.5) response to correct the

problem or to shut the battery down
2 PROOF/ÉPREUVE © ISO 2021 – All rights reserved
---------------------- Page: 6 ----------------------
ISO/TS 23625:2021(E)
3.17
state of charge
SOC

indication of the amount of usable capacity available in the battery (3.2), expressed as a percentage

EXAMPLE: 0 % = empty; 100 % = full.
3.18
thermal runaway

potentially dangerous and self-propagating battery (3.2) heating condition that can occur within a cell

(3.7) or cells
4 System design requirements

4.1 All battery system design should be done in a way that ensures all installed lithium-ion batteries

are kept within the battery manufacturers specified safe operating limits.

4.2 There should be a BMS installed to control all installed lithium-ion batteries and maintain the

battery manufacturers specified safe operating limits.
NOTE A BMS can be internal or external to the battery.

4.3 It is recommended to only use cells that are constructed according to recognized international

standards, such as IEC 62619 and IEC 62620.

4.4 The battery system should be sized in accordance with the application and the battery

manufacturer’s defined operating limits, and with the appropriate C rating listed in the system

specifications.

4.5 Consideration should be given to providing power for critical systems (e.g., engine starting,

navigation lights, etc.) if a BMS shuts down the battery.

4.6 Consideration should be given to battery locations to keep the system operating temperature

within the manufacturer’s specified range.

NOTE A BMS can disconnect the battery at manufacturer-specific temperature limits.

4.7 Output control from charging sources should be within the battery manufacturer’s specified ranges.

4.8 If a shut-down condition is approaching, a BMS or system should notify the operator with a visual

and/or audible alarm, clearly perceptible from the main helm position, prior to disconnecting the battery

from the DC system.

4.9 In normal operation, different battery chemistries should not be connected in parallel or in series.

Combining/automated charging relays should not be used between systems using different chemistries.

4.10 Main battery switch — The main battery switch or other means of manual disconnection should

be used as an isolation switch, but not as a primary protection device in the output from a lithium-ion

battery bank.

4.11 The system should communicate on the delivered systems communication network with all

installed charging components as an integrated system.

NOTE Small self-contained systems might not have internal communication capabilities.

© ISO 2021 – All rights reserved PROOF/ÉPREUVE 3
---------------------- Page: 7 ----------------------
ISO/TS 23625:2021(E)

4.12 Multiple contactors are permitted (HVC, LVC, plus main), each providing specific protection from

high voltage, low voltage and load isolation. A single main contactor is permitted, if the control system

provides for protection from all conditions.
5 Safe operating limits

5.1 The safe operating limits of a lithium-ion battery are defined by the manufacturer and are

comprised of high and low voltage limits, charging and discharge current limits, and charging and

discharging temperature limits, etc. The SOL shall be adhered to during the design, installation, storage,

and operation of a lithium-ion battery.

All lithium-ion batteries lose capacity through cycling and over time. Capacity is also adversely affected

by operating at higher temperatures and maintaining a lithium-ion battery in a high SOC and/or

extended periods at a low SOC. This needs to be taken into account in terms of the SOL.

5.2 Overcharging can cause damage to the cells, and shall be prevented by using a BMS appropriate for

the installation.

5.3 Lithium-ion batteries have very strict temperature operating limits established by the battery/cell

manufacturers. To prevent damage and potentially hazardous conditions, the system shall be operated

within specified operating temperatures under all operating conditions.

For craft in long term storage, the battery installation should follow the manufacturer-recommended

battery storage procedures, based on ambient temperature, connected charging sources, and

parasitic loads.
6 General lithium-ion battery installations

6.1 Lithium-ion batteries should not be installed in locations where temperatures outside (high or

low) acceptable parameters can be expected to occur. Battery manuf
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.