A hydrogen fluoride gas quantitative analysis device and analysis method

A technology of hydrogen fluoride gas and analysis method, which is applied to measurement devices, analyzes materials by chemical reaction of materials, analyzes materials, etc., can solve the problems of high price, limited detection efficiency and application range, and is not easy to carry, and achieve accurate quantitative solutions. Effect

Active Publication Date: 2021-02-19
天津天赐高新材料有限公司
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Problems solved by technology

However, the equipment is complex, expensive, and not easy to carry, which limits its detection efficiency and application range

Method used

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  • A hydrogen fluoride gas quantitative analysis device and analysis method
  • A hydrogen fluoride gas quantitative analysis device and analysis method

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Embodiment Construction

[0041] First of all, it should be noted that the specific structure, features and advantages of the present invention will be specifically described below by way of examples, but all descriptions are only for illustration, and should not be construed as forming any limitation on the present invention . In addition, any single technical feature described or implied in each embodiment mentioned herein, or any single technical feature shown or implied in each drawing, can still be described in these technical features (or their equivalents) ) to continue any combination or deletion, so as to obtain more other embodiments of the present invention that may not be directly mentioned herein. In addition, for the sake of simplifying the drawings, the same or similar technical features may only be marked in one place in the same drawing.

[0042] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplar...

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Abstract

The invention relates to a method for quantitative analysis of hydrogen fluoride gas in the environment, which includes a quantitative collection device and a quantitative detection device. The quantitative collection device includes a gas measuring chamber, a nitrogen storage bottle, a qualitative analysis chamber, a quantitative analysis chamber, a quantitative analysis liquid storage tank, and a gas measuring chamber. An air inlet pipe is provided at the left end of the air inlet pipe, and a first valve is arranged on the air inlet pipe; an air outlet pipe is arranged on the air inlet pipe between the first valve and the measuring chamber, and the air outlet pipe is respectively connected to the first branch pipeline and the first branch pipeline through a one-way three-way valve. The second branch pipeline, the first branch pipeline extends into the qualitative analysis liquid in the qualitative analysis chamber, and the second branch pipeline extends into the quantitative analysis liquid in the quantitative analysis chamber; both the qualitative analysis chamber and the quantitative analysis chamber are equipped with exhaust pipes, One end of the exhaust pipe is above the liquid level in the analysis chamber, and the other end is in direct contact with the air, and a one-way valve is provided on the exhaust pipe. The invention provides a fast and accurate quantitative evaluation method for the content analysis of the hydrogen fluoride gas in the electrolyte production workshop.

Description

technical field [0001] The invention relates to the technical field of battery electrolyte, in particular to a hydrogen fluoride gas quantitative analysis device and analysis method. Background technique [0002] Lithium-ion batteries have the characteristics of high energy density, high specific power, good cycle performance, no memory effect, and no pollution. They have been widely used at present, and they are also an ideal choice for future electric vehicle energy. [0003] Lithium hexafluorophosphate electrolyte is the "blood" of lithium-ion batteries, which is responsible for the insertion and extraction of lithium ions, so as to realize the energy transmission function. With the rapid development of lithium-ion batteries, a large number of technological innovations have been carried out in the research of battery-related materials. The quality of the electrolyte is mainly controlled by items such as moisture and HF. Excessive HF content produced by fluoroethylene carb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/78G01N21/82
CPCG01N21/783G01N21/82
Inventor 曹宏飞周邵云余乐黄兵
Owner 天津天赐高新材料有限公司
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