Battery for analyzing in-situ spectrum and using method and application thereof

Abstract

The invention relates to the battery field and in particular relates to a battery for analyzing in-situ spectrum and a using method and application of the battery. The battery comprises a top cover, a sealed sleeve pipe, a shell, a shell liner pipe, an electric conductive compression column, an electric conductive spring, an electric conductive pressure sheet, a working electrode post and a reference electrode post; the assembling steps are as follows: inserting the shell liner pipe into the bottom of the shell, sequentially placing a working electrode, a battery diaphragm and a reference electrode into the shell liner pipe sequentially, enabling the working electrode to be positioned at the bottom of the shell and at the opposite side of a watch window; placing the electric conductive pressure sheet, the electric conductive spring and the electric conductive compression column into the shell liner pipe sequentially, and tightly pressing the electric conductive pressure sheet on the reference electrode; connecting the outer side of the shell and the inner side of the sealed sleeve pipe and connecting the outer side of the sealed sleeve pipe and the inner side of the top cover by threads; screwing all threaded connecting parts to realize sealing of the battery; and connecting the working electrode post and the reference electrode post with the shell and the top cover respectively. The battery can carry out in-situ spectrum analysis research on the surface of the electrode in charging and discharging processes.

Description

technical field [0001] The invention relates to the battery field, in particular to a battery for in-situ spectrum analysis. Background technique [0002] With the continuous improvement of modern industry's demand for energy, advanced electrochemical energy storage devices represented by lithium-ion batteries, lithium-sulfur batteries, and sodium-ion batteries have become digital due to their significant advantages in energy density and economic cost. Key core technologies in the fields of electronics, electric vehicles, and smart grids. Although these electrochemical energy storage systems have shown good prospects in preliminary applications, the research on the electrochemical reaction process of these batteries is still in its infancy. In order to gain an in-depth understanding of the electrochemical reaction process of the battery, clarify the charging and discharging reaction mechanism of the battery, and reveal various kinetic and thermodynamic factors affecting the...

AI Technical Summary

Problems solved by technology

However, in-situ spectroscopy research on the electrochemical reaction process of batteries requires a battery device with a special structure, and most of the existing patented technologies have disadvantages such as complex device structure and high cost, which hinder their application and promotion.

At the same time, most of the existing patented technologies are in-situ battery devices for a specific type of spectral analysis (such as X-ray diffraction spectroscopy). These devices are generally not suitable for other types of in-situ spectral analysis and detection, so they lack versatility

[0003] Although the battery devices disclosed in Chinese patents (CN100373168C, CN102435625A, CN203434214U) can perform in-situ X-ray diffraction spectrum measurement, the electrode part is not provided with a compaction device, so there are defects in the compactness, which may affect the charging and discharging of the electrode material. The electrical contact with the surface of the current collector during the process is not conducive to the long-term stable cycle of the battery

Chinese patent CN104393223A discloses an in-situ battery accessory for an X-ray diffractometer, which can perform in-situ X-ray diffraction spectrum characterization on lithium-ion batteries. In order to enhance the sealing performance of the battery, the device uses multiple sealing rings for sealing, but this It also increases the complexity of the device structure and battery assembly process, which is not conducive to its practical application

Chinese patent CN103399000A discloses an electrolytic cell device that can be used for in-situ characterization of Raman spectroscopy. The working and reference electrodes are all protruded from the electrode device, so that the device can only be used in conjunction with specific types of Raman spectroscopy. There are too many components, which increases the complexity of the structure and assembly process

Finally, the above battery devices can only be used for a single type of spectroscopic detection and analysis, which lacks versatility

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