Model Coin-Cell In-Situ Swelling System (MCS1000)

Model Coin-Cell Swelling System MCS1000/MCS1400

Assess the Importance of Lithium Battery Swelling

Lithium-ion battery, as a popular energy storage carrier, has been widely used in life. With the increase of application scenarios, the battery safety also has higher requirements.ln the process of lithium-ion battery charge and discharge, it will be accompanied by different degrees of expansion.

On the one hand, it will affect the deformation of the battery assembly space, on the other hand, the irreversible expansion accumulation will also cause the structural destruction of the active material, thus accelerating the capacity attenuation.In the monomer cell layer, the characterization of cell expansion has more characterization methods.Such as by applying a certain pressure on the cell surface to test the thickness of the cell, the expansion force, the expansion of the cell, including multiple layers of positive and negative electrode, separator, aluminum plastic film oralumi- num shell, cannot accurately locate the source of expansion and quantification of a material. 

So for lithium researchers still have certain limitations.Coin battery is a kind of battery used by lithium researchers, it is composed of a single layer of positive and negative electrode and separator, but due to the binding of the positive and negative electrode steel shell, the electrode of the expansion cannot be measured. If the influence of positive and negative electrode steel shell is excluded and the model coin battery is used to explore the expansion behavior of single layer battery, it can more directly analyze the expansion performance of active material, which is helpful to evaluate the feasibility of material modification and process formula optimization.

Scheme of Model Coin-Cell

Main Features

1.The instrument size is small (length * width * height 120 * 150 * 280mm),which can be placed in the glove box.

2.The fixture of the model coin cell can used to assemble various types of full battery.

3.Good sealing,to ensure long-term test stability and to obtain more reliable test results.

4.High-precision thickness measurement system,thickness measurement resolution 0.1 μm,precision ± 1 μm.

5.ln-situ test of the full-cell expansion thickness curve.

6.Solid electrolyte ion conductivity can be tested.

7.The software automatically combines the model battery thickness change data and charging and discharge data (compatible with partial charging and discharge instrument) and outputs the test data report.

Application Case

Main Instrument Parameters

FAQ

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