New GranuPack Conductivity Unit enables powder conductivity testing
Granutools, based in Awans, Belgium, has launched its Conductivity Unit for GranuPack, an add-on designed to extend powder characterisation capabilities by combining electrical conductivity measurement with tapped density analysis.
The new system is intended to provide improved understanding of powder electrical behaviour under controlled densification conditions, a key factor in a range of industrial and scientific applications.
Electrical conductivity is a key property in many applications, but in powders it cannot be reliably predicted from the conductivity of the solid material alone. Powder conductivity is influenced by particle contacts, surface properties, formulation and packing state, making direct powder measurement essential for obtaining process-relevant data.
The Conductivity Unit enables electrical conductivity to be measured throughout a tapped density test, providing insight into how conductivity changes as the powder becomes progressively compacted.
The unit integrates with the GranuPack system by replacing the standard measurement cell with a dedicated conductivity cell. During a standard tapped density test protocol, the powder is progressively densified while bulk density and electrical conductivity are measured simultaneously.
According to Granutools, this combined approach provides a reproducible method for analysing the relationship between powder packing and electrical behaviour, supporting material comparison and formulation studies.
The Conductivity Unit is aimed particularly at battery materials and electrode manufacturing applications, where powder electrical conductivity is critical for electron transfer and electrode performance. The system is also intended for broader applications involving conductive powders, including formulation development and material screening.
By enabling comparison between materials and production batches, the system may support decision-making prior to processing steps such as calendering or compaction.
Controlled through the GranuPack software, the Conductivity Unit is designed to provide an automated and reproducible workflow for routine powder characterisation without complex setup requirements.
