IEC TS 62607-4-5:2017

Nanomanufacturing - Key control characteristics - Part 4-5: Cathode nanomaterials for nano-enabled electrical energy storage - Electrochemical characterization, 3-electrode cell method

IEC TS 62607-4-5:2017(E) provides a standardized method for the determination of electrochemical properties of cathode nanomaterials such as lithium iron phosphate (LFP) for electrical energy storage devices. This method will enable the industry to:  
decide whether or not a cathode nanomaterial is usable, and
select a cathode nanomaterial suitable for their application.  This document includes:
recommendations for sample preparation,
outlines of the experimental procedures used to measure cathode nanomaterial properties,
methods of interpretation of results and discussion of data analysis, and
case studies.  NOTE The very purpose of this method is to arrive at a detailed characterization of the electrodes so that individual contribution of the anode and cathode for performance and degradation could be predicted. The method can be applied for characterization of the electrode working as cathode or/and as anode.

General Information

• Status: Published
• Publication Date: 11-Jan-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 07.030 - Physics. Chemistry
• ICS: 07.120 - Nanotechnologies
• Technical Committee: TC 113 - Nanotechnology for electrotechnical products and systems
• Drafting Committee: WG 11 - TC 113/WG 11
• Current Stage: PPUB - Publication issued
• Start Date: 17-Jan-2017
• Completion Date: 12-Jan-2017

Standards Content (Sample)

IEC TS 62607-4-5 ®
Edition 1.0 2017-01
TECHNICAL
SPECIFICATION
colour
inside
Nanomanufacturing – Key control characteristics –
Part 4-5: Cathode nanomaterials for nano-enabled electrical energy storage –
Electrochemical characterization, 3-electrode cell method

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IEC TS 62607-4-5 ®
Edition 1.0 2017-01
TECHNICAL
SPECIFICATION
colour
inside
Nanomanufacturing – Key control characteristics –

Part 4-5: Cathode nanomaterials for nano-enabled electrical energy storage –

Electrochemical characterization, 3-electrode cell method

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 07.030; 07.120 ISBN 978-2-8322-3766-3

– 2 – IEC TS 62607-4-5:2017 © IEC 2017
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 9
4 Sample preparation methods . 9
4.1 General . 9
4.2 Reagents . 9
4.2.1 Cathode foil . 9
4.2.2 Anode foil . 10
4.2.3 Reference electrode . 10
4.2.4 Electrolyte and separator . 10
4.3 Pre-treatment of the electrode materials . 10
4.4 Preparation of the screw cell . 11
4.5 Disassembly of the screw cell . 12
5 Measurement of electrochemical properties . 12
5.1 General . 12
5.2 Open circuit potential . 12
5.2.1 Demarcation of method . 12
5.2.2 Experimental procedures and measurement conditions . 12
5.3 Potentiostatic electrochemical impedance spectroscopy (EIS) . 13
5.3.1 Demarcation of method . 13
5.3.2 Experimental procedures and measurement conditions . 13
5.4 Charge-discharge experiment (Constant Current Constant Voltage,
CCCV/CC) . 13
5.4.1 Demarcation of method . 13
5.4.2 Experimental procedures and measurement conditions . 13
6 Data analysis / interpretation of results (see Figure A.7) . 14
6.1 Open circuit potential . 14
6.2 Electrochemical impedance spectroscopy . 14
6.3 Constant current constant voltage (CC CV) charging-discharging . 14
Annex A (informative) Case study . 16
A.1 Sample preparation . 16
A.2 Results for a LFP electrode . 19
A.2.1 Open circuit voltage/potential (OCV/P) . 19
A.2.2 Electrochemical impedance spectroscopy (EIS) . 19
A.2.3 Constant current constant voltage (CCCV/CC) charging-discharging . 20
A.2.4 Ageing tests . 20

Figure A.1 – 3-electrode screw cell . 16
Figure A.2 – Components of the electrochemical cell used for testing . 16
Figure A.3 – 3-electrode screw cell assembling steps . 18
Figure A.4 – Open circuit voltage/potential (OCV/P) . 19

Figure A.5 – Electrochemical impedance spectra . 19
Figure A.6 – Constant current constant voltage (CCCV/CC) charging-discharging . 20
Figure A.7 – Comparison of results of ageing tests using 3-electrode screw cell . 22

– 4 – IEC TS 62607-4-5:2017 © IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NANOMANUFACTURING – KEY CONTROL CHARACTERISTICS –

Part 4-5 Cathode nanomaterials for nano-enabled electrical energy
storage – Electrochemical characterization, 3-electrode cell method

FOREWORD
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Technical Specifications are subject to review within three years of publication to decide
whether they can be transformed into International Standards.
IEC TS 62607-4-5, which is a Technical Specification, has been prepared by IEC technical
committee 113: Nanotechnology standardization for electrical and electronic products and
systems.
The text of this Technical Specification is based on the following documents:
Enquiry draft Report on voting
113/317/DTS 113/342/RVC
Full information on the voting for the approval of this technical specification 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 62607 series, published under the general title
Nanomanufacturing – Key control characteristics, can be found on the IEC website.
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
• transformed into an International Standard,
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

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