Powder resistivity compaction density meter

Powder resistivity compaction density meter

Function description:Function deion:

Automatic pressure measurement, capable of real-time measurement of the relationship between resistivity and compaction density during powder compaction process, pressure and compaction density map, automatic analysis of the rebound deformation of the sample after constant pressure and pressure relief, as well as the change maps of resistivity and conductivity during elastic deformation process, self reading sample height measurement up to 0.001mm; two control modes: touch screen and PC software; Integrated control system, report function; Automatic operation, the instrument has self safety protection and abnormal alarm functions

two.Reference standard:

1. Compaction density measurement reference: GBT 24533-2009 Graphite based negative electrode materials for lithium-ion batteries,

Appendix L: Testing Method for Powder Compaction Density

2. The four probe tester refers to GB/T 1551, GB/T1552-1995, ASTM F84 American A.S.T.M standard.

3. The four probe method for powder testing shall be made in accordance with the requirements of the arbitration method for the determination of powder conductivity in GBT 30835-2014 "Carbon composite lithium iron phosphate positive electrode materials for lithium-ion batteries"

III Scope of application:Scope of application

1. Measurement of electrical resistivity of carbon composite lithium iron phosphate cathode material for lithium-ion batteries;

2. Used for the analysis and detection of semiconductor powder materials that require measurement using the four probe method;

3. Used for measuring the resistivity of graphite powder materials;

4. Applied to enterprise quality inspection; R&D department, colleges and universities; Research institutes; And quality inspection agencies

four.working principle:

During the compression process of external force, as the powder moves and deforms, the gaps are filled, and the contact area between particles increases, resulting in attractive forces between atoms and strengthened mechanical wedging between particles, thus forming a compact with a certain density and strength Measure the changes in resistance, resistivity, and conductivity in real-time during the process of forming the billet until they stabilize

five. Parameter dataparameter