Electrode tortuosity tester & diaphragm ion conductivity tester

The Electrode Tortuosity Tester and Diaphragm Ion Conductivity Tester are precision systems designed for advanced analysis of battery electrodes and separators. The Electrode Tortuosity Tester evaluates 3D tortuosity pathways and microstructural connectivity in electrodes, while the Diaphragm Ion Conductivity Tester measures ionic conductivity of separators under controlled environmental conditions. These systems support R&D, quality control, and optimization of electrode and separator materials for lithium-ion, sodium-ion, and solid-state batteries.

Application

(1) Determination of tortuosity factor (τ) in dry electrodes, slurry-coated foils, and solid-state composites.

(2) 3D microstructural analysis for optimizing electrode porosity and ionic pathways.

(3) Ionic conductivity measurement of battery separators (ceramic, polymer, or hybrid materials).

(4) Evaluation of electrolyte diffusion through diaphragms under AC/DC bias.

(5) Quality control of electrode and separator batches in battery manufacturing.

(6) R&D of next-generation solid-state and high-energy-density battery systems.

(7) Integration with gloveboxes for oxygen/moisture-sensitive materials.

(8) Multi-scale imaging to correlate microstructure with electrochemical performance.

Standards

Electrode Tortuosity Analyzer:

(1) ASTM E1970-21 – Electrochemical Impedance Spectroscopy.

(2) ISO 18516 – Conductive Coatings – Resistivity Measurement.

Separator Ionic Conductivity Tester:

(3) IEC 62660-2 – Secondary Lithium-Ion Cells – Performance Testing.

(4) ASTM D5402 – Conductivity of Ionic Solutions.

Universal Compliance:

(5) RoHS, CE, and REACH certified.

Features

Electrode Tortuosity Analyzer

(1) 3D microstructure imaging with sub-micron resolution CT scanning.

(2) Automated tortuosity factor calculation (τ < 1.2 for optimal structures).

(3) Non-destructive optical tomography with rapid 60-second full-volume scan.

(4) Multi-material compatibility: dry electrodes, slurry-coated foils, solid-state composites.

(5) Laser-guided alignment for ±2 μm sample positioning accuracy.

(6) AI-powered analysis to identify critical 3D pathways.

(7) Multi-scale imaging: macro (cm-scale) and micro (μm-scale) views.

(8) Open architecture for integration with SEM/FIB datasets.

Separator Ionic Conductivity Tester

(1) Ultra-wide conductivity range: 0.01 mS/cm – 20 mS/cm.

(2) AC impedance spectroscopy up to 10 MHz.

(3) Programmable electrolyte injection with 0.1–100 μL precision.

(4) Self-sealing sample chamber for evaporation prevention.

(5) Temperature-controlled Peltier stage (-20°C to 80°C ±0.1°C).

(6) Non-contact graphene-coated electrodes to minimize polarization effects.

(7) Dielectric spectroscopy for ion mobility analysis under AC/DC bias.

(8) Auto-calibration with NIST-traceable standards.

(9) Hermetic design compatible with glovebox operation.

Parameters

Parameter	Electrode Tortuosity Analyzer	Separator Ionic Conductivity Tester
Measurement Range	τ = 1.01–5.00	0.01 mS/cm – 20 mS/cm
Accuracy	±2% (τ ≤ 3.00)	±0.5% of reading + 0.005 mS/cm
Resolution	0.01 μm (3D voxel)	1 nS/cm
Test Speed	60 sec/sample	120 sec/sample (including stabilization)
Temperature Range	20°C–200°C (optional upgrade)	-20°C–80°C
Interface	USB 3.2, GigE Vision	Ethernet, Wi-Fi 6, Bluetooth 5.3
Dimensions (W×D×H)	550 × 500 × 600 mm	400 × 350 × 250 mm
Weight	95 kg (net)	30 kg (net)

Accessories

(1) Electrode Tortuosity Analyzer: Sample holders, laser alignment kit, optical tomography module, software license.

(2) Separator Ionic Conductivity Tester: Electrolyte injection kit, NIST-traceable calibration standards, hermetic sample chamber, temperature control module, software suite.

(3) Optional glovebox interface modules for both systems.

(4) Data export and integration toolkit (CSV/PDF, LabVIEW, MATLAB, Python).

Test Procedures

(1) Prepare electrode or separator sample and mount it in the respective fixture.

(2) For tortuosity testing, perform 3D imaging scan and initiate automated tortuosity calculation.

(3) For ionic conductivity testing, inject electrolyte and stabilize temperature; measure AC/DC conductivity.

(4) Monitor test progress and record data via touchscreen interface or connected PC software.

(5) Analyze 3D microstructure, tortuosity factors, or conductivity curves for R&D, QC, or process optimization.

Maintenance Information

(1) Inspect sample holders, electrodes, and fixtures before each test for wear or contamination.

(2) Calibrate measurement systems periodically using NIST-traceable standards.

(3) Clean Peltier stage, optical lenses, and sample chamber to avoid residue accumulation.

(4) Check all electrical connections, interface cables, and safety interlocks before operation.

(5) Store instruments in clean, vibration-free, and dust-free conditions.

Other supplier products

	Melting Materials Dripping Test Machine,NF P92-505、EU 95/28/EC、ECE R118 Annex 7 FTech-NFP92-505	Description： This tester meet international standards NF P92-505. EU 95/28 / EC, ECE technical specifications and requirements of R118 Annex 7 of ...
	Safety shoe impact tester	According to the criteria Bs-953.1870 EN-344. ANSI-Z41 CSA-Z195 ISO K88782 EN ISO 20344. ANSI-Z41 BS EN-344 CSA-ZI95 LD50-1994 AS/NZS 22...
	5kN Universal Testing Machine丨5kN Universal Tester	Product Introduction This series of testing machines realizes the automatic control of the test process, data acquisition and analysis through the...
	Diaper impurity testing machine	The Diaper Impurity Testing Machine is designed for visual inspection of disposable diapers under controlled lighting conditions to detect residual...
	Glass Bottle Internal Pressure Resistance Tester	Introduction The internal pressure resistance tester for glass bottles is a device specifically used to test the internal pressure - resistance pe...

All supplier products

Same products

	Falling Sand Abrasion Test machine	Seller: Standard International Group (HK) Limited	The sand abrasion tester is a specialized testing device used to evaluate the abrasion resistance...
	Conveyor Belt Drum Friction Testing Machine	Seller: Standard International Group (HK) Limited	Main Purposes of Conveyor Belt Drum Friction Testing Machine The conveyor belt drum friction tes...
	Dry Sand Rubber Wheel Wear Tester	Seller: Standard International Group (HK) Limited	The dry sand rubber wheel abrasion tester is mainly used to test the abrasion resistance of mater...
	Sliding Bearing Fatigue Testing Machine	Seller: Standard International Group (HK) Limited	The sliding bearing fatigue testing machine is an important testing device, mainly used to evalua...
	High temperature vacum friction & wear tester	Seller: Standard International Group (HK) Limited	The working principle of a high-temperature vacuum friction and wear testing machine is to simula...