Silicon carbon negative electrode material preparation method and device

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 troublesome processes, loose handles, and affecting the quality of silicon carbon negative electrodes, so as to achieve good production quality, convenient operation, and improved Grinding effect on crushing mass

Active Publication Date: 2019-02-19
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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  • Silicon carbon negative electrode material preparation method and device
  • Silicon carbon negative electrode material preparation method and device
  • Silicon carbon negative electrode material preparation method and device

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] The present invention provides such Figure 1-7 A method and device for preparing a silicon-carbon negative electrode material as 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, and the crushing box 3 is an inner side A cuboid box-shaped structure with a cavity is opened. The preparation box 21 is a cuboid box-shaped structure surrounded by welding of multip...

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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 negative electrode material preparation, and in particular relates to a silicon-carbon negative electrode material preparation method and device. Background technique [0002] In recent years, with the rapid growth of the power battery market, the rapid development of the upstream material field has been driven, and higher requirements have been put forward for the performance of negative electrode materials. The graphite technology route has gradually been unable to meet the requirements of high specific capacity. Enterprises began to adjust their strategic direction and increase the layout of new anode materials. Among them, silicon-based anodes have attracted much attention. The coating structure of silicon-carbon anodes is to coat the surface of active material silicon with a carbon layer to alleviate the volume effect of silicon and enhance its Conductivity, according to the coating st...

Claims

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Application Information

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Patent Type & Authority Applications(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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