A method and device for preparing a silicon-carbon negative electrode material

A negative electrode material and preparation device technology, applied in the direction of negative electrodes, battery electrodes, active material electrodes, etc., can solve problems such as loose handles, affecting the quality of silicon carbon negative electrodes, and troublesome processes, so as to achieve good production quality and improve grinding and crushing quality , the effect of convenient operation

Active Publication Date: 2020-09-15
DATONG XINCHENG NEW MATERIAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing silicon carbon negative electrode production process is cumbersome. In the prior art, the handle of carbon material is not strict, and when the carbon material fails to pass the crushing and grinding, the quality of silicon carbon negative electrode production will be affected.

Method used

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  • A method and device for preparing a silicon-carbon negative electrode material
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  • A method and device for preparing a silicon-carbon negative electrode material

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Embodiment Construction

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0028] The present invention provides Figure 1-7 A method and device for preparing a silicon-carbon negative electrode material is shown, including a crushing box 3, a screw conveyor 12, a driven grinding wheel 5, a preparation box 21, a first motor 28, and a storage box 18. The crushing box 3 is inside A rectangular parallelepiped box-shaped structure with cavities, the preparation box 21 is a rectangular box-shaped structure surrounde...

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Abstract

The invention discloses a silicon carbon negative electrode material preparation method and device. The device comprises a rectangular crushing box, a screw conveyer, a driven grinding wheel, a rectangular preparation box, a first motor and a storage box, a cavity is formed in the inner side of the crushing box, multi-group steel plates are welded to form the preparation box, a first cavity, a second cavity and a third cavity are sequentially formed in the preparation box from the inner top end of the preparation box downwards are divided by partition plates, a feeding port is formed in the top end of the crushing box, a rotating arm is mounted at the inner upper end of the crushing box, one end of the rotating arm is connected with the inner wall of the crushing box, and the other end ofthe rotating arm extends out of the outer end of the crushing box and is fixedly connected with a connecting shaft. The silicon carbon negative electrode material preparation method and device is simple in structure, has the advantages of convenience in use, high practicability, good production quality and the like and can be widely used.

Description

Technical field [0001] The invention belongs to the technical field of silicon carbon anode material preparation, and specifically relates to a method and device for preparing silicon carbon anode material. Background technique [0002] In recent years, with the rapid growth of the power battery market, it has driven the rapid development of the upstream material field. At the same time, higher requirements have been placed on the performance of anode materials. The graphite technology route has gradually been unable to meet the requirements of high specific capacity, and many anode materials are produced. Companies have begun to adjust their strategic direction and increase the layout of new anode materials. Among them, the silicon-based anode has attracted much attention. The coating structure of the silicon-carbon anode is to cover the surface of the active material silicon with a carbon layer to relieve the volume effect of silicon and enhance its Conductivity, according to t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/36H01M4/38H01M4/62B02C21/00B02C23/08
CPCB02C21/00B02C23/08H01M4/366H01M4/386H01M4/625H01M2004/027Y02E60/10
Inventor 武建军
Owner DATONG XINCHENG NEW MATERIAL CO LTD
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