Nanomanufacturing - Key control characteristics - Part 4-7: Nano-enabled electrical energy storage - Determination of magnetic impurities in anode nanomaterials, ICP-OES method

IEC TS 62607-4-7:2018 provides a method for the determination of magnetic impurities in anode nanomaterials for energy storage devices using an Inductively Coupled Plasma Optical Emission Spectrometer (ICP-OES), including test overview, reagents, apparatus, test procedures, test results and test report.
IEC TS 62607-4-7:2018 applies to the determination of the total content of magnetic impurities (iron, cobalt, chromium, and nickel) ≥ 0,02 mg/kg which can be attracted by magnet.

General Information

Status
Published
Publication Date
28-Aug-2018
Current Stage
PPUB - Publication issued
Start Date
03-Sep-2018
Completion Date
29-Aug-2018
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IEC TS 62607-4-7:2018 - Nanomanufacturing - Key control characteristics - Part 4-7: Nano-enabled electrical energy storage - Determination of magnetic impurities in anode nanomaterials, ICP-OES method
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IEC TS 62607-4-7 ®
Edition 1.0 2018-08
TECHNICAL
SPECIFICATION
colour
inside
Nanomanufacturing – Key control characteristics –
Part 4-7: Nano-enabled electrical energy storage – Determination of magnetic
impurities in anode nanomaterials, ICP-OES method

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IEC TS 62607-4-7 ®
Edition 1.0 2018-08
TECHNICAL
SPECIFICATION
colour
inside
Nanomanufacturing – Key control characteristics –

Part 4-7: Nano-enabled electrical energy storage – Determination of magnetic

impurities in anode nanomaterials, ICP-OES method

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 07.120; 07.030 ISBN 978-2-8322-5971-9

– 2 – IEC TS 62607-4-7:2018 © IEC 2018
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms and definitions . 7
4 Overview of the measurement . 8
5 Reagents . 8
5.1 Nitric acid . 8
5.2 Hydrochloric acid . 8
5.3 Nitrohydrochloric acid . 8
5.4 Ethanol . 8
5.5 Argon gas . 8
5.6 Standard solutions . 8
5.6.1 Iron standard solution . 8
5.6.2 Cobalt standard solution, . 8
5.6.3 Chromium standard solution, . 8
5.6.4 Nickel standard solution,. 8
6 Apparatus . 8
6.1 ICP-OES . 8
6.2 Conical flask . 9
6.3 Sample tank . 9
6.4 Magnet . 9
6.5 Electronic balance . 9
6.6 Scroll equipment . 9
6.7 Ultrasonic cleaning equipment . 9
6.8 Heating device . 9
7 Preparation of series of standard solutions . 9
8 Test procedure . 10
8.1 Cleaning the magnet . 10
8.2 Test sample . 10
8.3 Attraction of magnetic impurities . 10
8.4 Remove nonmagnetic impurities . 10
8.5 Extraction of magnetic impurities . 11
8.6 Preparation of blank sample . 11
8.7 Test . 11
9 Data analysis and calculation of results . 11
10 Test report . 12
Annex A (informative) Diagram of the scroll device . 13
Annex B (informative) Magnet removal method . 14
Annex C (informative) Case study . 15
C.1 Preparation of series of standard solutions . 15
C.2 Cleaning the magnet . 15
C.3 Weighing sample . 15
C.4 Attraction of magnetic impurities . 16
C.5 Remove nonmagnetic impurities . 16

C.6 Extraction of magnetic impurities . 17
C.7 Test . 17
C.8 Identify the uncertainty sources . 18
Annex D (informative) Validation of the attraction procedure . 19
D.1 Experimental samples . 19
D.2 Experimental procedure . 19
D.3 Experimental results and conclusion . 19
Bibliography . 20

Figure A.1 – Diagram of sample tank on the rolling device . 13
Figure B.1 – Diagram of magnet removal . 14
Figure C.1 – Procedure for cleaning the magnet . 15
Figure C.2 – Procedure for weighing sample . 16
Figure C.3 – Procedure for attraction of magnetic impurities . 16
Figure C.4 – Procedure for removing nonmagnetic impurities. 17
Figure C.5 – Procedure for extraction of magnetic impurities . 17

Table 1 –Recommended test wavelengths for the determination of magnetic impurities . 9
Table 2 – Correspondence of the measured mass to the untapped bulk density of the
sample . 10
Table 3 – Instrument operating parameters . 11
Table C.1 – Test results of magnetic impurities . 18
Table D.1 – Test results of magnetic impurities . 19

– 4 – IEC TS 62607-4-7:2018 © IEC 2018
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
NANOMANUFACTURING –
KEY CONTROL CHARACTERISTICS –
Part 4-7: Nano-enabled electrical energy storage – Determination
of magnetic impurities in anode nanomaterials, ICP-OES method

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