scholarly journals Carbon nanotube 3D current collectors for lightweight, high performance and low cost supercapacitor electrodes

RSC Advances ◽  
2014 ◽  
Vol 4 (16) ◽  
pp. 8230 ◽  
Author(s):  
Ricardo Quintero ◽  
Dong Young Kim ◽  
Kei Hasegawa ◽  
Yuki Yamada ◽  
Atsuo Yamada ◽  
...  
2017 ◽  
Vol 9 (18) ◽  
pp. 15719-15726 ◽  
Author(s):  
Xiaoqin Yu ◽  
Dan Liu ◽  
Lixing Kang ◽  
Yi Yang ◽  
Xiaopin Zhang ◽  
...  

2015 ◽  
Vol 4 ◽  
pp. 149-155 ◽  
Author(s):  
Si-Jin Kim ◽  
A-Young Lee ◽  
Han-Chul Park ◽  
So-Young Kim ◽  
Min-Cheol Kim ◽  
...  

Polymers ◽  
2019 ◽  
Vol 11 (5) ◽  
pp. 867 ◽  
Author(s):  
Ting Zheng ◽  
Nuo Xu ◽  
Qi Kan ◽  
Hongbin Li ◽  
Chunrui Lu ◽  
...  

Effective multiwalled carbon nanotube (MWCNT) fiber manufacturing methods have received a substantial amount of attention due to the low cost and excellent properties of MWCNTs. Here, we fabricated hybrid microfibers composed of hyaluronic acid (HA) and multiwalled carbon nanotubes (MWCNTs) by a wet-spinning method. HA acts as a biosurfactant and an ionic crosslinker, which improves the dispersion of MWCNTs and helps MWCNT to assemble into microfibers. The effects of HA concentration, dispersion time, injection speed, and MWCNT concentration on the formation, mechanical behavior, and conductivity of the HA/MWCNT hybrid microfibers were comprehensively investigated through SEM, UV-Vis spectroscopy, tensile testing, and conductivity testing. The obtained HA/MWCNT hybrid microfibers presented excellent tensile properties in regard to Young’s modulus (9.04 ± 1.13 GPa) and tensile strength (130.25 ± 10.78 MPa), and excellent flexibility and stability due to the superior mechanical and electrical properties of MWCNTs. This work presents an effective and easy-to-handle preparation method for high-performance MWCNT hybrid microfibers assembly, and the obtained HA/MWCNT hybrid microfibers have promising applications in the fields of energy storage, sensors, micro devices, intelligent materials, and high-performance fiber-reinforced composites.


RSC Advances ◽  
2015 ◽  
Vol 5 (103) ◽  
pp. 84836-84839 ◽  
Author(s):  
Jinzhang Liu ◽  
Bin Wang ◽  
Francesca Mirri ◽  
Matteo Pasquali ◽  
Nunzio Motta

Flexible and solid-state supercapacitors are made using compressed graphene foams as electrodes and highly conductive carbon nanotube (CNT) films as current collectors.


2016 ◽  
Vol 30 (02) ◽  
pp. 1550272 ◽  
Author(s):  
Maryam Amirhoseiny ◽  
Majid Zandi ◽  
Abolghasem Mosayyebi ◽  
Mehrzad Khademian

In this work, electrochemical double layer supercapacitors were fabricated using multiwalled carbon nanotube (MWCNT) composite microfilm as electrode. To improve the electrochemical properties, MWCNTs were functionalized with −COOH by acid treatments. CNT/PVA films have been deposited on different current collectors by spin coating to drastically enhance the electrode performance. Electrode fabrication involved various stages preparing of the CNT composite, and coating of the CNT/PVA paste on different substrates which also served as current collector. Al, Ni and graphite were used and compared as current collectors. The surface morphology of the fabricated electrodes was investigated with scanning electrode microscopy (SEM). Overall cell performance was evaluated with a multi-channel potentiostat/galvanostat analyzer. Each supercapacitor cell was subjected to charge–discharge cycling study at different current rates from 0.2[Formula: see text]Ag[Formula: see text] to 1[Formula: see text]Ag[Formula: see text]. The results showed that graphite-based electrodes offer advantages of significantly higher conductivity and superior capacitive behavior compared to thin film electrodes formed on Ni and Al current collectors. The specific capacitance of graphite based electrode is found to be 29[Formula: see text]Fg[Formula: see text].


Nanomaterials ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 3155
Author(s):  
Shaojun Wu ◽  
Zhiyong Zhao ◽  
Hongliang Hou ◽  
Xiang Xue

High-performance multifunctional EMI shielding composite fabricated by low-cost method is increasingly required. Herein, novel EMI shielding nanocomposite laminates, consisting of composite prepreg of carbon fiber/epoxy resin/carbon nanotube film, were manufactured by facile electric heating of carbon nanotube film. The results indicated that composite with excellent specific shielding effectiveness of 0.07 dB/μm, 47 dB cm3/g and metamaterial properties can be designed by composite prepreg, and the primary shielding mechanism of it was reflection loss, along with interface polarization loss and conductive loss, which was superior to lots of shielding materials including carbon nanotube-based, carbon black-based, carbon nanofiber-based and graphene-based materials reported previously. Meanwhile, highly required excellent properties, including the thermostability with initial decomposition temperature up to 300 °C, hydrophobicity over contact angle of 115°, corrosion resistance of the composite with metal-free modification, and function as structural laminate compared with previous studies were demonstrated, which suggested tremendous potentials of the multifunctional EMI shielding composites in harsh environment.


2016 ◽  
Vol 9 (1) ◽  
pp. 71-80 ◽  
Author(s):  
Xiaoli Zheng ◽  
Haining Chen ◽  
Zhanhua Wei ◽  
Yinglong Yang ◽  
He Lin ◽  
...  

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