The LIB-TXAS cell is one type of in-situ Lithium-ion-battery cells for X-ray absorption spectroscopy characterization. The cell can realize the online data collection of the X-ray absorption spectra during the charge-discharge process through the transmission mode. This in-situ cell equips with three layers of high-purity Be windows (>=99.93%), which located at the top, middle and bottom of the in-situ cell, respectively. The X-ray can be penetrated through the Be windows and the electrode materials during the electrochemical testing process in the vertical direction. The geometrical and electronic structure of the electrode materials can be detected in real time during the entire electrochemical procedure through this in-situ cell. This is-situ cell can make a beneficial role in understanding the kinetics factors.

Main features

1. The in-situ cell is designed for in-situ X-ray absorption spectra testing, which is based on the basic principle of lithium-ion or other rechargeable batteries;

2. Synchrotron radiation X-ray absorption spectrum data (transmission mode) or X-ray diffraction spectrum data (transmission mode) can be monitored in real time during the electrochemical process of the in-situ cell;

3. The in-situ cell can also be modified into another new in-situ cell, which can be applied to laboratory X-ray diffraction instrument with reflection mode;

4. The in-situ cell, which equipped with three high purity Be windows, can make sure a higher X-ray transmittance (>=50%) at 7 keV with the Li metal and LiCoO2 materials;

5. The in-situ cell is especially suitable for high concentration, and X-ray excitation energy sample system;

6. The cell has a very suitable size (φ50*27mm), which can be easily placed in the glove box for battery handling and use;

7. The cell has a high-precision 18 mm diameter sandwich geometry, the electrode concentricity can be reach <0.1 mm;

8. Fluorine gaskets are used to seal all the cell, making sure the overall system sealing;

9. In the assembly process, the electrode materials and electrolyte can be easily assembled; meanwhile, all components can also be easily disassembled and cleaned.

10. The in-situ cell can be reused.

Optional accessories: high purity beryllium window (>= 99.93%); Kapton membrane; and Al foil.

Patent Number：ZL2018 2 0281687.4