A spectroscopic cell suitable for electrochemical in situ XRD characterization

Abstract

The invention discloses a spectrum pool suitable for electrochemical in-situ XRD representation. The spectrum pool comprises an upper cover plate, a base and an electrochemical test unit, wherein theupper cover plate and the base are connected one above the other; a through hole is formed in the center of the upper cover plate; a window sheet is placed above the through hole; the window sheet ispressed against an upper surface of the upper cover plate through a window sheet fixing plate; an electrode slot corresponding to the through hole is formed in the center of an upper end face of the base; the bottom of the electrode slot is provided with a conductive slot; an electrical conductive spring is arranged in the conductive slot; the conductive spring extends into the through hole alongfrom the bottom of the conductive slot; a spring sleeve is pressed against an upper part of the conductive spring in the through hole; the electrochemical test unit can be placed above the spring sleeve in the through hole; the side edge of base is provided with a conductive screw; one end of the conductive screw extends from the outer wall of the base; and the other end is in contact with the side wall of the conductive wall. The spectrum pool suitable for electrochemical in-situ XRD representation has the advantages of high spectrum quality, high sealing performance and electrochemical testing performance.

Description

technical field [0001] The invention relates to a spectral pool suitable for electrochemical in-situ XRD characterization, belonging to the field of spectral pools. Background technique [0002] The structural characteristics of electrode materials determine their electrochemical performance. Therefore, the study of the degradation mechanism of the electrochemical performance of electrode materials must be carried out from the aspect of material structure characterization. Electrochemical measurement techniques, including galvanostatic charge-discharge tests, etc., can only reflect the electrochemical performance of materials, but cannot directly reflect the essential problems that lead to the electrochemical performance of materials. [0003] Powder X-ray Diffraction (XRD) technology has always been a very important structural characterization method in the study of the crystal structure of solid materials, in terms of phase transition, stress, and structural analysis of m...

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Problems solved by technology

However, the use of epoxy resin may not fully guarantee the sealing performance of the system, especially in the research system using organic solvents, the epoxy resin may swell and cause the sealing performance to decrease

At the same time, it is difficult to disassemble the parts fixed and sealed by epoxy resin, which is not conducive to parts cleaning and replacement (K. Rhodes, R. Meisner, Y. Kim, N. Dudney. Evolution of phase transformation behavior in Li (Mn 1.5 Ni 0.5 )O 4 cathodes studied by in situ XRD.J.Electrochem.Soc.2011,158,A890.)

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