IEST In-Situ Model Coin Cell Swelling Testing System(MCS1000)
The Model Coin-Cell In-Situ Swelling Testing System using high-precision displacement sensors and high-stability structural systems, the swelling thickness change curve of the model coin-cell battery is tested in-situ, the swelling performance of the active material is quickly analyzed, and material development is facilitated.
Features:
- The instrument size is small (length *width * height: 120 * 150 * 280mm), which can be placed in the glove box;
- The model coin cell can be used to assemble various types of full coin cell;
- Good tightness can ensure long-term test stability and obtain more reliable test results;
- High-precision thickness measurement system, thickness measurement resolution 0.1um, precision ±1 um.
- In-situ test of the full-cell swelling thickness curve;
- lon conductivity of the solid electrolyte can be measured;
- The software can automatically combine the thickness change of the model coin cell with thecharging and discharge data (compatible with partial charging and discharge tester), and outputthe report involving all testing data.
Applications:
- Li-Li symmetric cell
- NCM-Graphite full cell
- NCM-Si/C full cell
- All-solid-state battery
1. Introduction
As a popular energy storage carrier, lithium-ion battery (LIB) has been widely used in our daily life. With the increas eof the application scenarios, the safety of the LIBs receives higher requirements. The charging and discharging processes of the LIBs are usually accompanied by the structure swelling with diferent degrees. On the one hand the structure swelling will affect the assembly space of the LIBs, on the other hand, the accumulation of the side reactions caused by the irreversible swelling will also lead to the structural destruction of the active material and accelerate the capacity fading. For a single cell, there are several methods for characterizing its swelling performance, such as applying a certain pressure on the surface of a single cell, and testing the swelling force or the swelling thickness of the cell. However, the swelling parameters measured by all these methods include the swelling of multiple positive and negative electrodes, separators and aluminum plastic film or aluminum shell, which cannot accurately analyze the swelling property of a material.
2. Scheme of Model Coin Cell
3. Main features:
- The instrument size is small (length * width * height: 120 * 150 * 280mm), which can be placed in the glove box;
- The model coin cell can be used to assemble various types of full coin cell;
- Good tightness can ensure long-term test stability and obtain more reliable test results;
- High-precision thickness measurement system, thickness measurement resolution 0.1 µm precision ±1 µm.
- In-situ test of the full-cell swelling thickness curve;
- Ion conductivity of the solid electrolyte can be measured;
- The software can automatically combine the thickness change of the model coin cell with the charging and discharge data (compatible with partial charging and discharge tester), and output the report involving all testing data.
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