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Lithium battery anode and cathode high-solid-content slurry stirring device

A technology with high solid content and stirring device, which is applied in the direction of lithium battery, mixer with rotating stirring device, mixer accessories, etc., which can solve the secondary pollution of slurry, affect the uniformity of slurry stirring, high investment and use costs, etc. problem, to achieve the effect of small support mechanical strength, uniform mixing effect, and ensure the quality of mixed output

Pending Publication Date: 2020-12-29
XINGTAI HAI YU LITHIUM BATTERY EQUIP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in order to ensure that the material feeding into the stirred tank body and the stirring environment in the stirred tank meet the mixing requirements, the method of controlling the environment of the entire workshop is usually adopted. Although this method can meet certain mixing requirements to a certain extent, it is not suitable for the large environment of the production workshop. The temperature, humidity, and pressure control requirements are very strict, and the investment and use costs are high, and the rapid controllability of the stirring environment inside the stirred tank body is poor, and it is easy to cause secondary pollution to the slurry
[0003] In addition, most of the existing lithium battery slurry mixers are vertical stirring mechanisms, that is, the stirring shaft is arranged along the vertical direction. When the stirring shaft is stirring, the material directly falls down due to the action of gravity and cannot be fully stirred by the stirring paddle. force, affecting the uniformity of slurry mixing

Method used

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  • Lithium battery anode and cathode high-solid-content slurry stirring device

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Example 1 A Lithium Battery Positive and Negative Slurry Stirring Device with Very High Solid Content

[0022] Such as figure 1 As shown, this embodiment includes a stirred tank body 3, a box assembly 10 and a horizontal stirring mechanism.

[0023] The upper part of the stirred tank body 3 is provided with a feed port 1, and the lower part is provided with a discharge port 2. A pressure sensor 4 , a temperature sensor 5 , a humidity sensor 6 and a heating mechanism 7 are fixed inside the stirred tank body 3 , and a protective gas inlet and outlet 8 is opened on the upper part of the stirred tank body 3 . The pressure sensor 4 is fixed on the upper inner wall of the stirred tank body 3 for monitoring the air pressure in the stirred tank body 3; the temperature sensor 5 is used to monitor the temperature in the stirred tank body 3, and the humidity sensor 6 is fixed on the lower side of the stirred tank body 3 The inner wall is used to monitor the humidity in the stirr...

Embodiment 2

[0026] Example 2 A stirring method for a positive and negative lithium battery slurry with a very high solid content

[0027] This embodiment is a lithium battery positive and negative very high solid content slurry stirring method realized by using the lithium battery positive and negative very high solid content slurry stirring device in Example 1, including the following steps:

[0028] S1. Adjust the environment inside the stirred tank body 3

[0029] The pressure sensor 4, temperature sensor 5, and humidity sensor 6 in the stirred tank body 3 monitor the air pressure, temperature, and humidity inside the stirred tank body 3, and control the protective gas inlet and outlet 8 on the upper part of the stirred tank body 3 to protect the inside of the stirred tank body 3. The delivery of the gas and the heating temperature of the heating mechanism 7 in the stirred tank body 3 make the environment in the stirred tank body 3 meet the preset environmental requirements before stir...

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Abstract

The invention discloses a lithium battery anode and cathode high-solid-content slurry stirring device which comprises a stirring kettle body provided with a feed port and a discharge port, and a horizontal stirring mechanism mounted on the stirring kettle body and used for stirring slurry, wherein a pressure sensor, a temperature sensor, a humidity sensor and a heating mechanism for heating the interior of the stirring kettle body are fixed in the stirring kettle body, and a protective gas inlet / outlet is formed in the upper part of the stirring kettle body. The environment in the stirring kettle body can be quickly controlled before and during stirring of the battery slurry. The invention is suitable for stirring high-solid-content slurry of the anode and cathode of the lithium battery and is used for monitoring and controlling the stirring environment in the stirring kettle body.

Description

technical field [0001] The invention belongs to the technical field of lithium battery slurry stirring, in particular to a lithium battery positive and negative slurry stirring device with extremely high solid content. Background technique [0002] In the production process of lithium batteries, the stirring of the positive and negative electrode slurry is the basis for determining the subsequent process. At this stage, the solid content of the positive electrode slurry is generally not higher than 70%-75%, because the slurry is easy to absorb water in the air, and the slurry There are strict requirements on the water content in the lithium battery, so it is necessary to strictly control the environment during the slurry stirring process, so that the preparation of the lithium battery slurry can meet the production and use requirements. At present, in order to ensure that the material feeding into the stirred tank body and the stirring environment in the stirred tank meet th...

Claims

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Application Information

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IPC IPC(8): B01F7/14B01F15/00B01F15/06H01M10/052H01M6/14B01F27/75
CPCH01M10/052H01M6/14B01F27/75B01F35/145B01F35/2113B01F35/2115B01F35/2213B01F35/2215B01F35/93B01F2035/99Y02E60/10
Inventor 王俊勇张聪聪王卫润东
Owner XINGTAI HAI YU LITHIUM BATTERY EQUIP LTD
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