WG 11 - TC 113/WG 11

IEC TS 62607-4-10:2026, which is a Technical Specification, establishes standardized methods to determine the electrochemical key control characteristics, including:
• specific capacitance, voltage maintenance rate, endurance in cycling and temperature endurance of carbon nanomaterials by determining the standard coin-type EDLC.
The electrochemical key control characteristics are derived by calculating the recording curve at the specific charging and discharging process.
• The document is applicable for coin-type EDLC assembled from carbon nanomaterials, such as nanoporous activated carbon, carbon aerogel, carbon nanotube, carbon black, graphene, nano graphite sheet, vapor-grown carbon fibre and so on.
• Typical application areas of this method are research, manufacturer and downstream use to guide material processing and quality control.

IEC TS 62607-4-9:2026, which is a Technical Specification, establishes a standardized method for assembling
• coin-cell EDLCs
in order to characterize the electrochemical key control characteristic of carbon nanomaterials.
The coin-cell EDLC is fabricated through sequential steps: electrode slurry preparation (mixing), coating, rolling, cutting, weighing, and final assembly.
• The document specifies the assembly process and data recording.
• The document is applicable for carbon nanomaterials used in EDLC as active material or conductive agents, such as nanoporous activated carbon, carbon aerogel, carbon nanotube, carbon black, graphene, nano graphite sheet, vapour-grown carbon fibre and so on.
• Typical application areas of this method are research, manufacturer and downstream user to guide material processing and quality control

IEC TS 62607-4-11:2026, which is a Technical Specification, specifies the dispersion stability by using the zeta potential (ζ) method for nano-carbon materials for lithium ion capacitors. This document describes not only the dispersion stability of nano-carbon materials but also the effect of different surfactants as well as the evaluation method for testing long-term dispersion stability using the zeta potential (ζ). This document describes:
• Dispersion stability of nano-carbon materials using zeta potential (ζ) for electrochemical capacitors using carbon nanomaterials as electrodes
• Effect of different surfactants
• Evaluation of long-term dispersion stability using the zeta potential (ζ) method

IEC TS 62565-5-3:2025 which is a Technical Specification, establishes a standardized method to determine a blank detail specification (BDS) for
‭• silicon nanosized materials
used for
‭• negative electrode of lithium-ion batteries.
This document is intended to be used for silicon nanosized materials for the negative electrode of lithium-ion batteries which have been widely employed in the fields of
- portable devices,
- power tools,
- electric vehicles, and
- energy storage system.
Numeric values for the key control characteristics are left blank as they will be specified between customer and supplier in the detail specification (DS). In the DS key control characteristics can be added or removed if agreed between customer and supplier.

IEC TS 62565-5-1:2023, which is a Technical Specification, establishes a blank detail specification (BDS) for nanoporous activated carbon used for electrochemical capacitors.
Numeric values for the key control characteristics are left blank as they will be specified between customer and supplier in the detail specification (DS). In the DS key control characteristics can be added or removed if agreed between customer and supplier.

IEC 62565-5-2:2022(E) which is a Technical Specification, establishes a blank detail specification that lists the relevant key control characteristics (KCC) including chemical, physical, structural, and electrochemical characteristics of nano-enabled electrode for electrochemical capacitors. Electrodes of both electric double layer capacitors and pseudo capacitors with nano/ nanostructured materials such as nanoporous activated carbon, graphene, carbon nanotube, carbon black, carbon aerogel, carbon nanomaterial coating collector, etc., are included. For other electrodes, this document can be used for reference.
In addition, this document enables the customer to specify requirements in a standardized manner and to verify through standardized methods that the nano-enabled electrode of the electrochemical capacitors meets the required properties.

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.