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In-situ electrochemical-Raman combined testing device for non-aqueous system

An in-situ electrochemistry and testing device technology, applied in measurement devices, Raman scattering, scientific instruments, etc., can solve the problems of complex reaction mechanism and unclear understanding, etc.

Inactive Publication Date: 2015-05-13
XIAMEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Lithium-sulfur batteries are a new generation of high specific energy chemical power sources, but their reaction mechanism is complex, and the current understanding of this system is still unclear

Method used

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  • In-situ electrochemical-Raman combined testing device for non-aqueous system
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  • In-situ electrochemical-Raman combined testing device for non-aqueous system

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Embodiment 1

[0018] see figure 1 , the embodiment of the present invention is provided with a metal pool body upper cover 2, an insulating and non-conductive battery body lower cover 4, a working electrode terminal 3, a double O-ring 5, a spring 6, and a button battery 7; the metal pool body upper cover 2 is hollowed out in the middle and uses quartz glass 1 as a window, and the metal cell upper cover 2 is connected to the working electrode of the electrochemical testing instrument through the working electrode terminal 3; the lower cover 4 of the insulating and non-conductive battery body has a cavity inside 41. The spring 6 as the counter electrode wire is set in the cavity 41, the button battery 7 is set on the top of the spring 6, the metal cell body upper cover 2 and the insulating non-conductive battery body lower cover 4 are sealed by double O-rings 5 ​​to form a Close the electrolytic cell system.

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Abstract

The invention relates to in-situ electrochemical spectral testing, and particularly relates to an in-situ electrochemical-Raman combined testing device for a non-aqueous system. The in-situ electrochemical-Raman combined testing device for the non-aqueous system can acquire the change information of structure and composition of a sulfur electrode in a charging and discharging process to facilitate deep understanding of the lithium storage mechanism and lithium storage property of a material and further to design and optimize the material. The in-situ electrochemical-Raman combined testing device comprises a metal cell body upper cover, an insulating non-conductive cell body lower cover, a work electrode binding post, a dual-O-shaped ring, a spring and a battery, wherein the middle part of the metal cell body upper cover is hollowed out; a piece of quartz glass serves as a window sheet; the metal cell body upper cover is connected with a work electrode of an electrochemical testing instrument through the work electrode binding post; a hollow cavity is kept inside the insulating non-conductive cell body lower cover; a spring serving as a counter electrode wire is arranged in the hollow cavity; the battery is arranged on the top of the spring; and the metal cell body upper cover and the insulating non-conductive cell body lower cover are sealed by the dual-O-shaped ring to form a closed electrolytic cell system.

Description

technical field [0001] The invention relates to an in-situ electrochemical spectroscopic test, in particular to an in-situ electrochemical-Raman combined test device for non-aqueous systems. Background technique [0002] Conventional electrochemical research methods mainly use electrical signals as detection means to obtain the structure of the electrode / electrolyte interface, the mechanism and kinetic properties of the electrode process by measuring parameters such as current, potential, and electricity. Due to its high sensitivity, changes in submonatomic (molecular) layers at electrochemical interfaces can be detected. However, the traditional electrochemical method has certain limitations, for example, it cannot characterize specific molecules through molecular fingerprint information, and cannot adapt to the requirements of in-depth microscopic research. In a complex multi-species system, conventional electrochemical methods can only provide the sum of various microsco...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/65G01N27/403
Inventor 董全峰陈嘉嘉任斌郑明森
Owner XIAMEN UNIV
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