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Dry-method mixing device and mixing method for super capacitor pole piece material

A supercapacitor, dry mixing technology, applied in mixers with rotating containers, chemical instruments and methods, mixers with rotating stirring devices, etc., can solve the problem of insufficient mixing uniformity, low fault tolerance, and low mixing efficiency. problems, to achieve the effect of improving mixing efficiency, high fault tolerance, and ensuring mixing effect

Pending Publication Date: 2021-12-21
合盛科技(宁波)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this manufacturing method, the mixing efficiency is not high, and the mixing uniformity is not enough. To produce high-quality pole pieces, the error tolerance rate is low.

Method used

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  • Dry-method mixing device and mixing method for super capacitor pole piece material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Such as figure 1 As shown, a dry mixing device for supercapacitor electrode materials includes: a storage tank 30 , a primary mixing system, a secondary mixing system, a vacuum pump 13 and a control terminal 14 .

[0052] A storage tank 30, the storage tank 30 is provided with a feed pipe A and a discharge pipe B; wherein, the feed pipe A is provided with a primary filter 17, and the discharge pipe B is provided with two Stage filter 18, after the supercapacitor pole piece material is mixed through one stage, before entering the storage tank 30, pass through and filter 17 to ensure that the supercapacitor pole piece material that does not mix and meet the requirements cannot enter the storage tank 30, and will Before the supercapacitor pole piece material in the storage barrel 30 is extracted into the secondary material cylinder 7, it also needs to pass through the secondary filter 18 to ensure that the supercapacitor pole piece material passing into the secondary mater...

Embodiment 2

[0062] A dry mixing method for a supercapacitor pole material, applied to the above dry mixing device for a supercapacitor pole material, comprising the following steps:

[0063] Turn on the primary heating mechanism 3 and obtain the actual ambient temperature in the primary barrel 1. When the actual ambient temperature in the primary barrel 1 reaches the ambient temperature of the primary barrel 1 set by the control terminal 14, perform Next step; what needs to be explained is that the ambient temperature of the first-stage barrel 1 set by the control terminal 14 is greater than or equal to 40°C, and the range of humidity is between 5% and 20%, so as to ensure the environmental state during the first-stage mixing. Temperature and humidity are ideal. When each environmental parameter does not reach the set value of the control terminal 14, the temperature controller 23 operates to calculate the heating time, and controls the operation of the primary heating mechanism 3 (the no...

Embodiment 3

[0075] S1, turn on the primary heating mechanism 4, detect the relative humidity in the primary barrel 1 at the present stage, and compare it with the parameters set by the control terminal 14 (the conventional set temperature is 40°C, and the humidity range is 20%), and the temperature is controlled The instrument 23 runs, calculates the heating time, and controls the primary heating mechanism 3 to run for 4 minutes to ensure that the internal environment of the primary barrel 1 is at a dry level;

[0076] S2, test run: turn on the motor 19 to drive the first-stage stirring mechanism 2 to run (at a speed of 2000rpm), the running time is set to 30s, and observe whether the operation of the first-stage material barrel 1 and the first-stage stirring mechanism 2 is stable;

[0077] S3, after the operation of S2 is correct, open the primary feed inlet 5, close the primary discharge port 6 and the first valve 31, and use 10% polyvinylidene fluoride (PVDF) of 8kg activated carbon, 1k...

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Abstract

The invention relates to the technical field of super capacitors, and discloses a dry-method mixing device and method for a super capacitor pole piece material, and the mixing device comprises a material storage cylinder,a first stage mixing system , a second stage mixing system , a vacuum pump and a control terminal; the material storage cylinder is provided with a feeding pipe and a discharging pipe; the first stage mixing system comprises a first stage barrel , a first stage stirring mechanism, a first stage heating mechanism and a first stage particle size detector, wherein the first stage barrel is provided with a first stage feeding port, a first stage discharging port, and a first connecting pipe; the second stage mixing system comprises a second-stage barrel, a second-stage stirring mechanism, a second-stage heating mechanism and a second-stage particle size detector, wherein the second-stage charging barrel is provided with a second-stage feeding hole, a second-stage discharging hole and a second connecting pipe; the vacuum pump is provided with a first exhaust pipe and a second exhaust pipe; and a first valve is arranged on the first connecting pipe, a second valve is arranged on the feeding pipe, a third valve is arranged on the first exhaust pipe, a fourth valve is arranged on the discharging pipe, a fifth valve is arranged on the second connecting pipe, and a sixth valve is arranged on the second exhaust pipe; The device disclosed by the invention has the advantages of high mixing efficiency, uniform mixing, good mixing effect and capability of realizing continuous production.

Description

technical field [0001] The invention relates to the technical field of supercapacitor devices, in particular to a dry mixing device and a mixing method for supercapacitor electrode sheet materials. Background technique [0002] Supercapacitor is a new type of energy storage device. Compared with traditional capacitors and lithium-ion batteries, supercapacitors have been widely used in many fields because of their fast charging and discharging and energy storage characteristics. However, at present, the production efficiency of supercapacitor pole pieces is low, the mixing process is complex and the uniformity of the produced pole pieces is not good. [0003] The technical process of dry pulping is to pre-mix powder materials such as active matter and conductive agent at a certain speed. After mixing, add binder, mix and stir, gradually add solvent to mix and disperse, and finally add a certain amount of solvent to dilute and adjust to the viscosity required for coating. ...

Claims

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Application Information

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IPC IPC(8): B01F13/10B01F7/18B01F9/12B01F15/00B01F29/83
Inventor 李辉杨斌陆鸣夏研宇阮殿波
Owner 合盛科技(宁波)有限公司
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