Rotary demagnetizer and lithium battery negative electrode material powder processing device

A technology of demagnetization device and rotating power, applied in electrode manufacturing, circuits, magnetic objects, etc., can solve the problems of large size of demagnetization device, difficult cleaning, unfavorable installation, etc., to improve the effect of demagnetization, increase the contact area, The effect of easy disassembly and installation

Inactive Publication Date: 2015-05-06
DONGGUAN KAIJIN NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The increase in the content of magnetic substances will affect the quality of lithium battery negative electrode materials. The current qualification standards for lithium battery negative electrode materials require the content of magnetic substances to be ≦0.1ppm. Therefore, after the lithium battery negative electrode materials are crushed, demagnetization is provided Process, the demagnetization process is a relatively important process in the production and manufacture of negative electrode materials. At present, the existing technology of demagnetization in lithium battery negative electrode materials has the following problems: 1. The existing demagnetization device is large in size, which is not conducive to installation; 2. The demagnetization effect is not good, the gap is large, and some materials cannot be touched; 3. The magnetic material sticks to the magnetic rod, which makes cleaning difficult and not clean

Method used

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  • Rotary demagnetizer and lithium battery negative electrode material powder processing device
  • Rotary demagnetizer and lithium battery negative electrode material powder processing device
  • Rotary demagnetizer and lithium battery negative electrode material powder processing device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A rotary demagnetization device, comprising an annular feed tray 1 and a discharge tray 2, the feed tray 1 and the discharge tray 2 correspond to each other; 6 cylinders are arranged between the feed tray 1 and the discharge tray 2 Shaped stainless steel sleeve 3, one end of stainless steel sleeve 3 is provided with opening, is provided with the magnetic bar 4 that activity puts in and takes out in stainless steel sleeve 3;

[0032] One end of the stainless steel sleeve 3 is fixed on the feeding tray 1, and the other end is provided with an opening 6 for putting in or taking out the magnetic bar, and is movable and fixed on the discharging tray 2.

[0033] 6 stainless steel sleeves are evenly distributed on the rings of the feed tray 1 and the discharge tray 2.

[0034] The opening 6 of the stainless steel sleeve 3 is provided with a sealing plug 7

Embodiment 2

[0036] A rotary demagnetization device, comprising an annular feed tray 1 and a discharge tray 2, the feed tray 1 and the discharge tray 2 correspond to each other; 6 cylinders are arranged between the feed tray 1 and the discharge tray 2 Shaped stainless steel sleeve 3, one end of stainless steel sleeve 3 is provided with opening, is provided with the magnetic bar 4 that activity puts in and takes out in stainless steel sleeve 3;

[0037] The two ends of the stainless steel sleeve 3 are movable and fixed on the feed tray 1 and the discharge tray 2 respectively, and the stainless steel sleeve 3 is provided with an opening 6 for putting in or taking out the magnetic bar at one end of the feed tray 1 .

[0038] Six stainless steel casing pipes 3 are evenly distributed on the rings of the feeding tray 1 and the discharging tray 2.

[0039] The opening of the stainless steel sleeve 3 is provided with a sealing plug.

Embodiment 3

[0041] A rotary demagnetization device, comprising an annular feed tray 1 and a discharge tray 2, the feed tray 1 and the discharge tray 2 correspond to each other; 6 cylinders are arranged between the feed tray 1 and the discharge tray 2 Shaped stainless steel sleeve 3, one end of stainless steel sleeve 3 is provided with opening, is provided with the magnetic bar 4 that activity puts in and takes out in stainless steel sleeve 3;

[0042] Both ends of the stainless steel sleeve 3 are respectively fixed on the feed tray 1 and the discharge tray 2, wherein the stainless steel sleeve 3 is provided with an opening 6 at one end of the discharge tray 2 for putting in or taking out the magnetic bar.

[0043] Six stainless steel casing pipes 3 are evenly distributed on the rings of the feeding tray 1 and the discharging tray 2.

[0044] The opening 6 of the stainless steel sleeve 3 is provided with a sealing plug 7 .

[0045] Working principle of the present invention is:

[0046] ...

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PUM

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Abstract

The invention provides a rotary demagnetizer and a lithium battery negative electrode material powder processing device. The rotary demagnetizer comprises an annular feeding disc and a discharging disc. The feeding disc corresponds to the discharging disc. Three to eight cylindrical stainless steel sleeves are arranged between the feeding disc and the discharging disc. An opening is formed in one end of each stainless steel sleeve, and movable magnetic bars are arranged in the stainless steel sleeves. The feeding disc or the discharging disc is connected with a motor providing rotation power. Magnetic matter in negative electrode material powder can be effectively removed, the quality of negative electrode materials is greatly improved, and the rotary demagnetizer has high application and popularization value.

Description

technical field [0001] The invention belongs to the field of lithium battery negative electrode material preparation, and in particular relates to a rotating demagnetization device and lithium battery negative electrode material powder processing equipment. Background technique [0002] Lithium batteries have the characteristics of high operating voltage, high energy density, long service life, no memory effect, and small self-discharge, and have become the preferred power source for advanced electronic equipment. With the diversification of people's life and the acceleration of the rhythm, it is hoped that the charging time of the battery will be shorter, and at the same time, it will be used for a long time after being fully charged. Therefore, a battery with higher charging performance, higher discharge capacity and longer service life is required. Such equipment and devices provide energy. [0003] Lithium battery anode materials, as an important part of lithium batteri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F13/00H01M4/04
CPCY02E60/10
Inventor 晏荦
Owner DONGGUAN KAIJIN NEW ENERGY TECH
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