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Device and method for automatically mixing supercapacitor slurry and testing slurry dispersion

A supercapacitor, fully automatic technology, applied in chemical instruments and methods, capacitors, measuring devices, etc., can solve the problems of difficult dispersion detection, uneven dispersion of slurry, etc., and achieve good consistency, simple device and method, and uniform particle dispersion. sexual effect

Active Publication Date: 2019-08-02
ZHUZHOU TIANLI FORGING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the defects of the prior art such as uneven slurry dispersion and difficult dispersion detection, the present invention develops a fully automatic supercapacitor slurry mixing device and method for detecting slurry dispersibility. The device can realize real-time monitoring of slurry dispersibility, At the same time, large-scale continuous production of slurry is possible

Method used

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  • Device and method for automatically mixing supercapacitor slurry and testing slurry dispersion
  • Device and method for automatically mixing supercapacitor slurry and testing slurry dispersion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The method for fully automatic supercapacitor slurry mixing and detecting slurry dispersibility of the present embodiment comprises the following steps:

[0054] S1, open the first valve (5), then open the first pump (4), suck the porous graphene in the 8kg electrode material storage tank (6) in the mixing tank (9), then close the first valve (5 ) and the first pump (4), then open the second valve (11), and then open the second pump (10), the carbon nanotubes in the 200g conductive agent storage tank (12) are sucked in the slurry mixing kettle (9) , then close the second valve (11) and the second pump (10), and clock the third pump (7) and the fourth pump (8) at the same time, put 3L of 15% w / v PTFE aqueous solution, 200mL of 70% w / v The CMC aqueous solution is injected into the mixing tank (9), and the third pump (7) and the fourth pump (8) are closed.

[0055] S2, open the first stirring paddle (3), the stirring speed is 1800r / min, open the viscometer (2) simultaneo...

Embodiment 2

[0062] The method for fully automatic supercapacitor slurry mixing and detecting slurry dispersibility of the present embodiment comprises the following steps:

[0063] S1, open the first valve (5), then open the first pump (4), the ternary lithium (NCM) / activated carbon composite material in the 6kg electrode material storage tank (6) is sucked in the mixing tank (9), Close the first valve (5) and the first pump (4) again, open the second valve (11) again, open the second pump (10) behind, the carbon black suction in the 200g conductive agent storage tank (12) is mixed In the slurry kettle (9), close the second valve (11) and the second pump (10) again, clock in the third pump (7) and the fourth pump (8) simultaneously, and the 25% polyvinyl alcohol NMP solution of 2L 1. 200g NMP solution is injected in the mixing kettle (9), and the third pump (7) and the fourth pump (8) are closed.

[0064] S2, open the first stirring paddle (3), the stirring speed is 2300r / min, open the v...

Embodiment 3

[0071] The method for fully automatic supercapacitor slurry mixing and detecting slurry dispersibility of the present embodiment comprises the following steps:

[0072] S1, open the first valve (5), then open the first pump (4), suck the lithium iron phosphate / lithium cobaltate composite material in the 7kg electrode material storage tank (6) in the slurry mixing tank (9), and then Close the first valve (5) and the first pump (4), open the second valve (11) again, and then open the second pump (10), the vapor phase growth carbon fiber in the 300g conductive agent storage tank (12) is sucked into the mixing chamber In the slurry kettle (9), close the second valve (11) and the second pump (10) again, clock in the third pump (7) and the fourth pump (8) simultaneously, and 30% polyvinylidene fluoride ( PVDF) NMP solution, the NMP solution of 300mL are injected in the mixing kettle (9), close the 3rd pump (7) and the 4th pump (8).

[0073] S2, open the first stirring paddle (3), the...

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Abstract

The invention relates to the technical field of a supercapacitor and particularly relates to a device and method for automatically mixing supercapacitor slurry and testing slurry dispersion. The device includes a mixing tank (9), a viscometer (2), a slurry dilution tank (25), stirring paddles including a first stirring paddle (3) and a second stirring paddle (16), a diameter measuring system including a particle size distribution to-be-tested tank (18), a laser emitter (19), a microscope objective lens (20), a collimation mirror (21), a Fourier lens (22), a photodetector (23) and an amplification converter (24), a first valve (5) and a first pump (4), a second valve (11) and a second pump (10), a third pump (7), a fourth pump (8), a fifth pump (1), a sixth pump (14), a seventh pump (15), an eighth pump (17), a ninth pump (13) and a control system (26).

Description

technical field [0001] The invention relates to the technical field of supercapacitors, in particular to a fully automatic supercapacitor slurry mixing device and method for detecting slurry dispersion. Background technique [0002] The characteristics of high power, high specific energy and long life of supercapacitors make them widely used in many power supply fields. The energy storage of supercapacitors mainly relies on electrodes (composed of current collectors and carbon coatings) for energy storage, so the uniformity of the electrode coating is the guarantee of good consistency in device performance, while the uniformity and stability of the slurry is the key to affecting the electrode sheet. Important factor for coating stability. Uneven stirring during the slurry preparation process leads to poor dispersion of the components of the slurry, resulting in defects such as low capacity and reduced safety performance of the fabricated electrode due to poor internal condu...

Claims

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Application Information

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IPC IPC(8): H01G11/86H01G13/00B01F7/18B01F13/10B01F15/00G01N11/00G01N15/02
CPCH01G11/86H01G13/00G01N11/00G01N15/0205B01F27/90B01F33/811B01F35/2136Y02E60/13
Inventor 阮殿波乔志军于学文顾应展
Owner ZHUZHOU TIANLI FORGING IND
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