Unlock instant, AI-driven research and patent intelligence for your innovation.

Pressure in-situ XRD testing device

A test device and in-situ technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of inability to perform electrochemical charge and discharge at the same time, inability to apply mechanical pressure to electrode sheets, complex and expensive equipment, etc.

Pending Publication Date: 2021-11-23
ANHUI UNIVERSITY
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing pressure-related in-situ cell patent technology only involves providing the high-pressure atmosphere conditions required for the reaction, and cannot apply mechanical pressure to the electrode sheet
The high-pressure device of the National Synchrotron Radiation Center uses two symmetrical diamonds to apply pressure to the sample placed in the middle. The equipment is extremely complicated and expensive, and the force window is small and the pressure is extremely high. Hundreds of MPa to GPa level, can not be tested in the conventional pressure range, can not be electrochemically charged and discharged at the same time, and is not suitable for ordinary laboratory operations
In summary, the existing in-situ XRD testing technology can perform XRD in-situ testing of electrochemical processes, but cannot apply mechanical pressure to electrodes during the process, and observe in-situ XRD of electrochemical processes under different pressures

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Pressure in-situ XRD testing device
  • Pressure in-situ XRD testing device
  • Pressure in-situ XRD testing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 , figure 2 as shown, figure 1 It is a structural perspective view of the pressure in-situ XRD testing device; figure 2 It is a structural perspective view of the pressure in-situ XRD testing device; the pressure in-situ XRD testing device of the present invention includes an upper flange assembly and a lower flange assembly, and the upper flange assembly includes a leveling flange base 1, Pressing piece 2, T-shaped insulating fixing ring 3, leveling flange ring 4, the T-shaped insulating fixing ring 3 is connected to the leveling flange base 1, and the pressing piece 2 is set on the leveling flange The position of the pressing piece 2 in the leveling flange base 1 is defined by the T-shaped insulating fixing ring 3, and the leveling flange ring 4 is connected with the leveling flange base 1 .

[0032] The lower flange assembly includes a lower flange 9, a pressure regulating screw 10, a pressure regulating spring 11, and a spring pressure platform...

Embodiment 2

[0042] Such as Figure 5 , Image 6 , Figure 7 , Figure 8 as shown, Figure 5 It is a structural view of the leveling flange base; Image 6 is a structural view of the leveling flange ring; Figure 7 It is a structural view of the T-shaped insulating fixing ring; Figure 8 It is a structural view of the tablet.

[0043] The leveling flange base 1 includes a cylindrical first connecting portion 101 and a bottom plate 102, the bottom plate 102 is sealed and connected at the end of the first connecting portion 101, and the T-shaped insulating fixing ring 3 includes a cylindrical The cylindrical second connecting part 301 and the annular limiting part 302 are sealed and connected at the end of the second connecting part 301, and the leveling flange ring 4 is provided with a fixing threaded hole 401.

[0044] A first connecting thread is provided on the inner wall of the first connecting part 101, and the first connecting part 101 is threadedly connected with the second c...

Embodiment 3

[0057] The inside of the lower flange 9 is provided with a cavity, and the insulating ring 8 is placed along the inner wall of the cavity, and the center of the lower flange 9 is provided with an adjustment hole, and the adjustment hole is set as a threaded hole. The pressure screw 10 is threadedly connected with the adjustment hole, and the axial adjustment of the pressure adjustment screw 10 is realized through the relative rotation of the pressure adjustment screw 10 and the lower flange 9 .

[0058] Preferably, the cavity depth of the lower flange 9 is greater than the length of the pressure regulating spring 11 .

[0059] A telescopic hole is arranged in the axial direction of the pressure regulating screw 10, and one end of the spring pressing table 12 is arranged in the telescopic hole, and the spring pressing table 12 and the pressure regulating screw 10 can move relatively axially. The telescopic hole can prevent non-perpendicular displacement of the pressure regulati...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a pressure in-situ XRD testing device which comprises an upper flange assembly and a lower flange assembly, the upper flange assembly comprises a leveling flange base, a pressing piece, a T-shaped insulation fixing ring and a leveling flange ring, the T-shaped insulation fixing ring is connected with the leveling flange base, the pressing piece is arranged in the leveling flange base, and the leveling flange ring is connected with the leveling flange base; the lower flange assembly comprises a lower flange, a pressure adjusting screw, a pressure adjusting spring and a spring pressing table, the pressure adjusting screw is movably connected with the spring pressing table, the spring pressing table is in contact with the pressing piece, the lower flange is connected with the pressure adjusting screw, and the lower flange is connected with the leveling flange ring; and by adjusting the relative position between the pressure adjusting screw and the spring pressing table, the compression state of the pressure adjusting spring can be adjusted, so that the pressure state of the to-be-tested electrode plate can be adjusted, mechanical pressure can act on the battery electrode plate through simple operation, and electrochemical process in-situ XRD testing under different pressures is achieved.

Description

technical field [0001] The invention relates to the technical field of pressure in-situ XRD detection, in particular to a pressure in-situ XRD testing device. Background technique [0002] With the development of flexible electronic devices, it is inevitable to develop corresponding flexible battery and flexible supercapacitor technologies. Therefore, evaluating the impact of external pressure on flexible batteries or supercapacitors during use and studying the mechanism of pressure effects have become the key to the development of flexible energy storage. An integral part of technology. [0003] X-ray diffraction (XRD) is a characterization method for qualitative analysis of the crystal type, crystal parameters, crystal defects and quantitative analysis of the relative content of different structural phases through the diffraction phenomenon of X-rays in the sample. In order to improve the performance and service life of batteries, researchers need to conduct detailed anal...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/20
CPCG01N23/20G01N2223/056
Inventor 张青
Owner ANHUI UNIVERSITY