球磨和超声对碳纳米管导电浆料综合性能的影响研究

doi:10.11896/cldb.24070109

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Abstract The one-dimensional tubular structure of carbon nanotubes makes it have good mechanical properties, electrochemical properties and thermal properties, and has been widely used in the field of conductive paste. How to obtain the conductive paste of carbon nanotubes with good dispersion, less structural defects and good conductive properties is the premise of its application in lithium-ion batteries to show excellent electrochemical properties. In this study, oily conductive paste with carbon nanotubes mass fraction of 5% was prepared by different physical dispersion methods, including ball milling and ultrasound, and different physical dispersion time, respectively. The effects of different physical dispersion methods and different physical dispersion time on the structure, morphology, resistivity and stability of carbon nanotube conductive paste were studied. The experimental results showed that the I_G/I_D value of carbon nanotubes reached the maximum value of 1.058 and the resistivity of 94.36 mΩ·cm for 8 h ball milling, and the I_G/I_D value of carbon nanotubes reached the maximum value of 0.985 and the resistivity of 115.7 mΩ·cm for 3 h ultrasound. The results showed that the one-dimensional tubular structure of carbon nanotubes was better maintained under ball milling than under ultrasonic condition, and the structural defects were fewer, and the resistivity of the paste under ball milling was lower than that under ultrasonic condition, so the conductive property of the paste under ball milling was better. The experimental results showed that under the same physical dispersion method, the absorbance of carbon nanotube conductive paste decreased the most slowly for ball milling for 6 h and ultrasonic for 3 h, and the stability of the paste was the best under the effect of this dispersion time.

Key words： carbon nanotube conductive paste ball milling ultrasonication resistivity stability

Published: Online: 2025-10-27

CLC number:

TM242

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	Articles by authors
	MA Qingqing
	CHEN Nan
	GONG Zehui
	CHEN Hailong

Cite this article:

MA Qingqing,CHEN Nan,GONG Zehui, et al. Study on Effects of Ball Milling and Ultrasound on Comprehensive Performance of Carbon Nanotube Conductive Paste[J]. Materials Reports, 2025, 39(20): 24070109-7.

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https://www.mater-rep.com/EN/10.11896/cldb.24070109 OR https://www.mater-rep.com/EN/Y2025/V39/I20/24070109

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