Multi-walled carbon nanotube conductive paste

Effect of carbon nanotube microporous current collector on the performance of tin oxide lithium ion battery With paper fiber as the matrix and multi-walled carbon nanotubes (MWCNTs) as the conductive agent, multi-walled carbon nanotube conductive paste was prepared by vacuum filtration to prepare microporous conductive paper. MWCNTs conductive paper was used as the negative electrode current collector instead of copper foil in tin oxide...

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Effect of carbon nanotube microporous current collector on the performance of tin oxide lithium ion battery

With paper fiber as the matrix and multi-walled carbon nanotubes (MWCNTs) as the conductive agent, multi-walled carbon nanotube conductive paste was prepared by vacuum filtration to prepare microporous conductive paper. MWCNTs conductive paper was used as the negative electrode current collector instead of copper foil in tin oxide lithium ion battery. Field emission scanning electron microscopy (SEM) was used for characterization. SEM showed that Sn O2 was uniformly distributed in the pores of the three-dimensional conductive network constructed by MWCNTs. EDS element analysis was performed on the MWCNTs conductive paper loaded with Sn O2 electrode after cycling. The results showed that the three-dimensional microporous current collector can fully and uniformly adsorb Sn O2 slurry, thereby ensuring the structural stability and chemical stability of the matrix material. Electrochemical tests showed that MWCNTs conductive paper as the current collector of the negative electrode material Sn O2 can effectively improve the battery performance. When discharged at a current density of 100 mA/g, the specific capacity was 580 mAh/g after 60 cycles. When the current density was gradually increased, the battery specific capacity decreased relatively slowly, and the coulombic efficiency remained above 97%.

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