Nanocomposites capacitors

V. Agarwal, P. Chahal, R. R. Tummala, and M. G. Allen, Improvements and Recent Advances in Nanocomposite Capacitors Using a Colloidal Technique , Proceeding of 1998 Electronic Components and Technology Conference, (1998), pp. 165-170. 

Kraemer Kristin, Cooper Susan, Wignall Steve, Reding Nicholas, Krishnan Rajesh, Korlacki Rafal, et al. Functionalized barium titanate nanocomposite capacitors for energy storage. In MRS fall meeting exhibit, November 28-December 2, 2011, Boston, Massachusetts 2011. 

In recent several years, super-capacitors are attracting more and more attention because of their high capacitance and potential applications in electronic devices. The performance of super-capacitors with MWCNTs deposited with conducting polymers as active materials is greatly enhanced compared to electric double-layer super-capacitors with CNTs due to the Faraday effect of the conducting polymer as shown in Fig. 9.18 (Valter et al., 2002). Besides those mentioned above, polymer/ CNT nanocomposites own many potential applications (Breuer and Sundararaj, 2004) in electrochemical actuation, wave absorption, electronic packaging, selfregulating heater, and PTC resistors, etc. The conductivity results for polymer/CNT composites are summarized in Table 9.1 (Biercuk et al., 2002). 

Windlass, H., Raj, P.M., Balaraman, D., Bhattacharya, S.K., and Tummala, R.R., Colloidal processing of polymer ceramic nanocomposites for integral capacitors, in Proceedings of the International Symposium on Advanced Packing Materials Processes, Properties, and Interfaces, IEEE, Piscataway, NJ, 2001. 

Flexible and weaveable capacitor wire based on a carbon nanocomposite fiber. Adv. Mater. 25, 5965-5970. Copyright 2013, Wiley-VCH. (C) Reproduced with permission from reference Cal, ZB., Li, L, Ren, J., Qiu, L.B., Lin, HJ., Peng, H.S., 2013. Flexible, weavable and efficient microsupercapacrtor wires based on polyaniline composite fibers incorporated with aligned carbon nanotubes. J. Mater. Chem. A 1, 258-261. Copyright 2013, The Royal Society of Chemistry. (D) Reproduced with permission from reference Ren, J., Li, L, Chen, C, Chen, X.L., Cai, Z.B., Qiu, L.B., Wang, Y.G., Zhu,... 

Ren, J., Bai, W.Y., Guan, G.Z., Zhang, Y, Peng, H.S., 2013a. Flexible and weaveable capacitor wire based on a carbon nanocomposite fiber. Adv. Mater. 25,5965-5970. 

FIGURE 2.84 Illustration of ion transport mechanism in GO-PVA and GO-B-VA alkaline gel electrolytes with low and high GO content. (Reprinted from Electrochimica Acta. 132, Huang, Y. F. et al.. Boron cross-linked graphene oxide/polyvinyl alcohol nanocomposite gel electrolyte for flexible solid-state electric donble layer capacitor with high performance, 103-111, Copyright 2014, with permission from Elsevier.)... 

Electropol5mierization is an important technique to prepare CP-based capacitors which control the thickness and morphology of CP nanomaterials, for instance, CP/carbon nanocomposites are considered as good candidates for capacitors. In these nanocomposites, i.e., carbon nanotube (CNT), active carbon... 

Applications for nanocomposites include thin-film capacitors for computer chips. Thin film capacitors are electrical capacitors with an insulating film as the dielectric, combined with paper as carrier of the electrodes. The dielectric thin films are provided with electrodes. The electrodes of film capacitors may be metalized with aluminium or zinc applied directly to the surface of the plastic film. Two of these conductive layers are wound into a cylinder-shaped winding, layered as multiple single layers stacked together, to form a capacitor body. Film capacitor has very low ohmic losses and a very low parasitic inductance, which makes it suitable for AC power applications. 

Oleg Borodin works as a scientist at the Electrochemistry Branch of the Army Research Laboratory, Adelphi, MD since 2011. After obtained a Ph.D. degree in Chemical Engineering in 2000 he worked in the area of multiscale modeling of liquid, ionic liquid and polymer electrolytes for battery and double layer capacitor applications, modeling of energetic composite materials, polymers in solutions, and polymer nanocomposites. He coauthored more than a hundred publications and four book chapters. His modeling efforts focus on the scales from electronic to atomistic and mesoscale. 

Machida K, Sutanatsu S, Ishimoto S, Tamamitsu K (2008) High-voltage asymmetric electrochemical capacitor based on polyllumene nanocomposite and activated carbon. J Electrochem Soc 155 A970... 

Apparently, a giant increase in dielectric constant of these nanocomposites with filler content can be interpreted in terms of the formation of many mini-capacitors in the polymer matrix. However, the dielectric loss of the nanocomposites increases markedly when their filler content reaches and above. This is because the nanotubes link to one to another to form a conducting path network. 

Kakimoto Masa-aki, Takahashi Akio, Tsurumi Taka-aki, et al. Polymer-ceramic nanocomposites based on new concepts for embedded capacitor. Mater. Sci. Eng. Part B. 132 no. 1-2 (2006) 74-78. 

Lin M-F, Thakur VK, Tan EJ, Lee PS (201 Ic) Dopant induced hollow BaTi03 nanostructures for apphcation in high performance capacitors. J Mater Chem 21 16500-16504 Liu Z, Zhao L, Chen M, Yu J (2011) Effect of carboxylate multi-walled carbon nanotubes on the performance of thermoplastic starch nanocomposites. Carbohydr Polym 83(2) 447-451 Liu J, Liu R, Jiang J, Liu X (2013a) Design and synthesis of water-soluble photosensitive a-cyclodextrin and its application in dispersing carbon nanotubes. J Appl Polym Sci 130 (4) 2588-2593... 

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