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Device capable of realizing in-situ testing of metal ion battery

A metal ion and in-situ testing technology, which is applied in the direction of measuring devices, material analysis through optical means, and electrochemical variables of materials, can solve problems such as gas leakage, and achieve the effect of improving sensitivity and large area

Inactive Publication Date: 2019-06-07
南杰智汇(深圳)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This type of device is greatly affected by the environment and its own resistance during measurement. At the same time, there is a possibility of gas leakage in the sealing method of the window provided by this patent. The method of using bosses and gaskets to insulate electrodes from each other can only Electrode material for specific thickness

Method used

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  • Device capable of realizing in-situ testing of metal ion battery
  • Device capable of realizing in-situ testing of metal ion battery
  • Device capable of realizing in-situ testing of metal ion battery

Examples

Experimental program
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Effect test

Embodiment 1

[0018] Such as figure 1 and figure 2 As shown, the external body of the test box involved in the present invention is composed of a base 02 and an upper seat 03. There is a negative electrode interface 08 in front of the test box base 02, a reference electrode interface 06 is provided on the right front, and a positive electrode interface 07 is provided on the right front of the upper seat 03. There are cylindrical or hexagonal cylindrical grooves inside each interface ( image 3 ), used to connect with the additionally equipped banana plug, which is connected to an external electrochemical workstation for precise control of current and voltage. There is a circular window opening 09 on the top of the seat 03 to facilitate the entry and exit of light / laser for collecting optical or Raman spectrum signals.

[0019] Such as figure 2 and Figure 4 As shown, there is a multifunctional gas / liquid replacement opening channel 05 on the left side of the upper seat 03, which adopt...

Embodiment 2

[0024] Such as Figure 6 As shown, the device of the present invention can have two multifunctional gas / liquid replacement opening channels 05 to study the changes of gas and electrolyte solution generated during the charge and discharge process of the metal ion battery. When in use, install the device as described in Example 1, replace the sealing bolt 04 with a screw with a channel in the middle, and connect a valve to the outside of the multifunctional gas / liquid replacement opening channel 05, through which the gas or electrolysis produced Liquid outlet device, two multifunctional gas / liquid replacement opening channels 05 can be interchanged as outlet / inlet channels. Electrolyte can also be added through the two multifunctional gas / liquid replacement opening channels 05 to determine whether the cause of battery performance degradation is due to excessive consumption of electrolyte.

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Abstract

The invention, which belongs to the battery material testing device and research fields, discloses a device capable of realizing in-situ testing of metal ion battery. With the disclosed device, in-situ optical microscope and confocal Raman spectrum testing can be carried out on a metal ion battery during the electrochemical charging and discharging processes; sampling tracking can be carried out on changes of gas and electrolytes generated in the charging and discharging processes; and a needed gas testing environment can be provided for metal ion battery testing. On the basis of a positive fixed piece design, the resistance of the device is reduced and the sensitivity and repeatability are improved. Optical signals can be collected to the greatest extent; and information is provided for studying the performance of electrode materials. The device has advantages of being convenient to mount or dismount and being suitable for in-situ observation in the long-term circulating process.

Description

technical field [0001] The invention relates to the field of in-situ optical and Raman spectroscopic testing equipment for electrode materials of metal ion batteries in electrochemical processes, especially for lithium ion batteries, including alkali metals such as sodium ions and potassium ions, alkaline earth metal batteries Electrode materials were tested in situ optically and by Raman spectroscopy. Background technique [0002] At present, lithium-ion batteries are widely used in mobile and portable electronic devices. With the development of new energy industry and the increasing demand for green and clean energy, rechargeable and dischargeable battery technologies with low price, stable performance and excellent cycle performance, including lithium-ion Batteries and other high-capacity battery technologies have become the top priority of scientific research. How to improve the performance of the battery is an urgent problem to be solved in order to meet people's needs...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/65G01N21/84G01N27/30
Inventor 邹健莉曹鲁杰
Owner 南杰智汇(深圳)科技有限公司
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