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.
The Hioki RM2610 separates the resistance of the positive and negative electrodes of lithium-ion batteries (LIB) into composite layer resistance and interface resistance (the contact resistance between the current collector and the composite layer) and quantifies the results for further analysis. This video shows how to set up and begin measurement.
FEATURES
Introducing the procedures to verify continuity between the probes, resistance meter and DUT, as well as the insulation between probes. Because the test fixture does not have to be removed from the system but simply rotated to orient the probe head forward, cleaning and inspecting the probe is extremely easy.
Quantify the interfacial resistance (contact resistance) between the composite material layer resistance and the current collector layer against changes in the electrode sheet material (active material, conductive aid, etc.), composition, and coating conditions. Introducing the functions of the software application for the RM2610 Electrode Resistance Measurement System.
Step 1: USB Connection
Step 2: Selection of the Composite Layer Unit
Step 3: Measurement with Contact Check On
Step 4: Re-Analysis of the Most Recent Potential
The electrode cleaning procedure using the optional "MAINTENANCE TOOL RM9006" to keep the electrode probe of the ELECTRODE RESISTANCE MEASUREMENT SYSTEM RM2610 clean at all times.
| Measurement target | Positive and negative electrode sheets for rechargeable lithium-ion batteries | |||||
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| Measurement parameters | Composite resistivity [Ωcm] Interface resistance (contact resistance) between the composite layer and current collector [Ωcm^2] |
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| 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] |
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| Measurement time | - Contact check + potential measurement : approx. 30 sec. - Calculation : approx. 35 sec. (on a PC with Intel core i5-7200U CPU) The measurement time may vary depending on the measurement target and the processing capacity of the PC. |
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| Measurement current | 10 μA (min.) to 10 mA (max.) | |||||
| Number of probes | 46 | |||||
| Recommended PC specifications | CPU: 4 or more threads RAM: 8 GB or greater (4 GB required) Operating system: Windows 7 (64-bit), 8 (64-bit), 10 (64-bit) |
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| Temperature measurement function | Measures temperature near the test fixture | |||||
| Included accessories | TEMPERATURE SENSOR Z2001 ×1, USB cable ×1, USB license key ×1, Probe check board ×1, Power cord ×1, Instruction manual ×1 | |||||
