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production sio x device and method

A technology for collecting units and gases, applied in the direction of silicon oxide, etc., can solve the problems of cumbersome operation steps, high energy consumption, and low efficiency, and achieve the effects of improving product quality, reducing equipment investment, and reducing energy consumption

Active Publication Date: 2022-03-04
XINTE ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] SiO in prior art x The preparation method not only requires intermittent production, but also the product condenses on the cold wall and needs to be scraped off with a scraper. The operation steps are cumbersome, the energy consumption is large, and the efficiency is low.

Method used

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  • production sio <sub>x</sub> device and method

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Effect test

Embodiment 1

[0049] This embodiment provides a method for producing SiO x devices, including:

[0050] The reaction unit is used to heat the added reaction raw materials silicon and / or carbon and silicon dioxide step by step, so that the low boiling point impurities in the raw materials are evaporated into gaseous impurities step by step, and the raw materials react to form gaseous SiO x , where 1

[0051] The gas discharge unit is connected with the reaction unit. The gas discharge unit includes: a gas discharge pipeline and a heating unit arranged on the gas discharge pipeline. The gas discharge unit is used to transport and heat the gaseous materials flowing out of the reaction unit keep it in gaseous state;

[0052] The collection unit is connected with the gas discharge unit, and the collection unit is used to receive the gaseous material flowing out from the gas discharge unit;

[0053] The temperature adjustment mechanism is set in the collection unit. The temperature adjust...

Embodiment 2

[0064] Such as figure 1 As shown, this embodiment provides a production SiO x devices, including:

[0065] Reaction unit 1 is used to heat the added reaction raw materials silicon and silicon dioxide step by step, so that the low boiling point impurities in the raw materials are evaporated into gaseous impurities step by step, and the raw materials react to form gaseous SiO x , wherein 1

[0066] The gas discharge unit 2 is connected with the reaction unit 1. The gas discharge unit 2 includes: a gas discharge pipeline and a heating unit arranged on the gas discharge pipeline. The material is conveyed and heated to keep it ...

Embodiment 3

[0104] This embodiment provides a method for producing SiO x The device, the difference with the device in embodiment 2 is:

[0105] The solid suction unit in this embodiment is a Venturi mechanism.

[0106] This embodiment provides a method of using the device in this embodiment to produce SiO x The method, the difference with the method in embodiment 2 is:

[0107] The raw materials in step 1) are C-containing materials and silicon dioxide, and the vacuum unit is started to evacuate to 100 Pa, and the C-containing materials are crushed to 50 meshes, and the SiO-containing materials are 2 The material is crushed to 50 mesh, press C: SiO 2 The molar ratio is 3:1 and the mixture is fully mixed and then granulated, and heated through the reaction unit at a heating temperature of 100°C.

[0108] In step 2), the heating of the gas discharge unit is controlled, and the heating temperature is 100°C.

[0109] In step 3), the heating of the collection unit is adjusted through the...

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Abstract

The invention discloses a method for producing SiO x The device and method include: a reaction unit; a gas discharge unit; a collection unit; a temperature adjustment mechanism; and a vacuum unit. The method of the present invention can realize SiO x Continuous production, easy to realize automatic control, improve production efficiency, and prepare SiO with good performance x Materials, the non-volatile impurities in the raw materials are removed through the residue at the bottom of the reaction unit, and through reasonable control of the temperature of the reaction unit, gas discharge unit and collection unit, most of the volatile impurities are kept in a gas state and discharged from the first outlet of the collection unit. The unique design of the device of the invention realizes the continuous production of the whole process, which is beneficial to expand production capacity and reduce equipment investment. The special design of the details according to the production characteristics can improve the product quality and realize the long-term stable operation of the equipment. Since the continuous operation saves time and energy consumption such as starting the furnace for heating and stopping the furnace for cooling, the production efficiency can be improved and the energy consumption can be reduced.

Description

technical field [0001] The invention belongs to the technical field of negative electrode materials for lithium ion batteries, and in particular relates to a method for producing SiO x devices and methods. Background technique [0002] Lithium-ion batteries have the advantages of high capacity, good safety performance, many cycles, and environmentally friendly materials. In recent years, they have been widely used in smart phones, portable devices, new energy vehicles and other fields. Lithium-ion batteries are mainly composed of five parts: positive electrode, negative electrode, electrolyte, separator and current collector. [0003] Negative electrode materials are currently a research hotspot, and their technological innovations and breakthroughs are expected to make lithium-ion batteries have higher energy density and longer life. Anode materials account for 25% to 28% of the total cost of lithium-ion batteries. In addition, the theoretical capacity of traditional gra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B33/113
CPCC01B33/113
Inventor 王文银波范协诚秦文军孙永仕夏高强胡颖
Owner XINTE ENERGY
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