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HIOKI ELECTRODE RESISTANCE MEASUREMENT SYSTEM RM2610

Quantify composite layer resistance and interface resistance in Li-ion battery electrode sheets

The RM2610 isolates and quantifies the resistance characteristics of electrode sheets, a major component of lithium-ion batteries (LIBs), as two components: the composite layer resistance and the interface resistance between the composite layer and collector. The system allows users to visualize these two quantities by measuring the surface of the electrode sheet with a test fixture that consists of an array of test probes and then using proprietary analytical techniques to quantify them.

Key Features
• Measure composite resistivity [Ωcm]
• Measure interface resistance between the composite layer and current collector [Ωcm^2]

RM2610	System product

Measurement target	Positive and negative electrode sheets for rechargeable lithium-ion batteries
Measurement parameters	Composite resistivity [Ωcm] Interface resistance (contact resistance) between the composite layer and current collector [Ωcm^2]
Computation method	Inverse problem analysis of potential distribution using the finite volume method
Information necessary for computation	• Composite layer thickness [μm] (for 1 side) • Current collector thickness [μm] • Current collector volume resistivity [Ωcm]
Measurement time	Standard conditions: 75 s (Contact check + potential distribution measurement + computation)
Measurement current	10 μA (min.) to 10 mA (max.)
Number of probes	46
Recommended PC specifications	CPU: Intel® Core™ i7, 2.4 GHz, 4 or more threads RAM: 8 GB or greater (4 GB required) Operating system: Windows 7 (64-bit), 8 (64-bit), 10 (64-bit)
Temperature measurement function	Measures temperature near the test fixture
Accessories	TEMPERATURE SENSOR Z2001 ×1, USB cable ×1, USB license key ×1, Probe check board ×1, Power cord ×1, Instruction manual ×1

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