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An electrolysis device based on a solid electrolyte diaphragm material and a method for producing sodium using the electrolysis device

A solid electrolyte and diaphragm material technology, applied in diaphragms, electrolytic components, electrolytic processes, etc., can solve the problems of high requirements for synthesis equipment, low ion conductivity, high impurity content, etc., and achieve high ion conductivity, high ion conductivity, The effect of simple synthesis process

Active Publication Date: 2022-05-17
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the invention is to solve the low electrolysis efficiency, high impurity content and environmental pollution of the traditional sodium production method, β-Al 2 o 3 The electrolyte material used in the diaphragm electrolysis method has low ionic conductivity, high energy consumption, high requirements for synthesis equipment, and the problem of serious sodium deposition in conventional electrolyte materials, and provides an electrolysis device based on a solid electrolyte diaphragm material and using the electrolysis device Sodium production method

Method used

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  • An electrolysis device based on a solid electrolyte diaphragm material and a method for producing sodium using the electrolysis device

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specific Embodiment approach 1

[0025] Specific embodiment one: present embodiment is a kind of electrolysis device based on solid electrolyte diaphragm material, and described electrolysis device comprises electrolyzer 1, NASICON type inorganic solid electrolyte diaphragm cell 3, cathode 4, chlorine reservoir 8, anode and metallic sodium collection device 14, the anode is composed of a first anode 11 and a second anode 12;

[0026] The electrolytic cell 1 is closed and set, and the inside of the electrolytic cell 1 is provided with a NASICON type inorganic solid electrolyte diaphragm cell 3, the inside of the NASICON type inorganic solid electrolyte diaphragm cell 3 is a cathode electrolyte cavity 13, and the NASICON type inorganic solid electrolyte diaphragm cell 3 The outside is the anode electrolyte cavity 10; the metal sodium collector 14 is arranged on the outside of the electrolytic cell 1, the top of the NASICON type inorganic solid electrolyte diaphragm cell 3 is sealed and connected with the top of ...

specific Embodiment approach 2

[0027] Embodiment 2: This embodiment differs from Embodiment 1 in that: the electrolysis device further includes a heating device 2 , and the heating device 2 is arranged on the outer surface of the electrolytic cell 1 .

[0028] Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0029] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the electrolysis device further includes a metal sodium cooler 18 , and the metal sodium cooler 18 is arranged at the bottom of the metal sodium collector 14 .

[0030] Other steps are the same as those in Embodiment 1 or 2.

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Abstract

An electrolysis device based on a solid electrolyte diaphragm material and a sodium production method using the electrolysis device relate to a sodium production device by electrolysis of a solid electrolyte diaphragm material. The purpose of the invention is to solve the low electrolysis efficiency, high impurity content and environmental pollution of the traditional sodium production method, β-Al 2 o 3 The electrolyte material used in the diaphragm electrolysis method has low ionic conductivity, high energy consumption and high requirements for synthesis equipment, and conventional electrolyte materials have serious problems of sodium deposition. Method: The chlorine gas generated by the electrolysis reaction enters the chlorine storage tank, the molten metal sodium generated by the electrolysis reaction enters the metal sodium collector, and the molten metal sodium is cooled into solid metal sodium; when the metal sodium collector is filled with solid metal sodium, close the Sodium guide tube valve, open the protective gas inlet and outlet tracheal valve, pass in the protective gas, and then collect the solid metal sodium. The invention can obtain an electrolysis device based on a solid electrolyte diaphragm material and a method for producing sodium by using the electrolysis device.

Description

technical field [0001] The invention relates to a device for producing sodium by electrolysis of a solid electrolyte membrane material. Background technique [0002] Sodium is a widely used alkali metal element with abundant reserves in the earth's crust. It occupies an extremely important position in the fields of energy, chemical industry, medicine, dyestuff and national defense and military industry, and has very high industrial value. In recent years, the rapid development of solid-state lithium batteries has led to the research of derived solid-state sodium batteries. As an indispensable electrode material for the negative electrode of solid-state batteries, metallic sodium has advantages that other electrode materials cannot match. When the negative electrode of the battery uses sodium metal , its theoretical capacity is as high as 1166mAhg -1 , which is nearly three times the theoretical capacity of graphite electrodes in current lithium-ion batteries. Therefore, th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C3/02C25C7/04C25C7/06C25B1/26C25B13/05
CPCC25C3/02C25C7/04C25C7/06C25B1/26C25B13/04Y02P10/20
Inventor 刘立敏周晓亮刘雨剑
Owner SOUTHWEST PETROLEUM UNIV