Electrical devices containing carbon nanotube-infused fibers and methods for production thereof

A technology of carbon nanotubes and electrical devices, applied in the field of energy storage using carbon nanotubes, which can solve problems such as low power storage capacity

Inactive Publication Date: 2013-03-27
APPL NANOSTRUCTURED SOLUTIONS LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, current fabrication techniques are only capable of producing small capacitors containing carbon nanotubes with low electrical storage capacity

Method used

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  • Electrical devices containing carbon nanotube-infused fibers and methods for production thereof
  • Electrical devices containing carbon nanotube-infused fibers and methods for production thereof
  • Electrical devices containing carbon nanotube-infused fibers and methods for production thereof

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Embodiment Construction

[0022] The present invention relates in part to an electrical device having an electrode layer comprising continuous fibers impregnated with carbon nanotubes. Herein, such continuous fibers are synonymously referred to as carbon nanotube-infused fibers, or carbon nanotube-infused fiber materials. The invention also relates in part to methods for manufacturing such electrical devices. Despite the promise of carbon nanotubes in electrical device applications, including supercapacitor applications, until now it has been difficult to place carbon nanotubes into electrical devices while taking advantage of the ultra-high effective surface area of ​​carbon nanotubes middle.

[0023] As previously mentioned, supercapacitors generally exhibit much higher capacitance values ​​than conventional capacitors or electrolytic capacitors. As such, it is gaining significant interest in energy storage applications such as solar harvesting, hydroelectric energy harvesting, wind farm energy har...

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Abstract

Electrical devices having a plurality of stacked electrode layers are described. At least one of the electrode layers contains continuous fibers that are infused with carbon nanotubes. The continuous fibers can be disposed upon an electrically conductive base plate. The electrical devices can further contain an electrolyte contacting each electrode layer and a layer of separator material disposed between each electrode layer, in which case the electrical devices can form a supercapacitor. Such supercapacitors can have a capacitance of at least about 1 Farad/gram of continuous fibers. The capacitance can be increased by coating at least a portion of the infused carbon nanotubes with a material such as, for example, a conducting polymer, a main group metal compound, and/or a transition metal compound. Methods for producing the electrical devices are also described.

Description

technical field [0001] Cross-reference to related applications [0002] This application claims priority under 35 USC §119 to US Provisional Patent Application Serial No. 61 / 355,097, filed June 15, 2010, which is hereby incorporated by reference in its entirety. [0003] The present invention relates generally to energy storage, and more particularly to energy storage using carbon nanotubes. Background technique [0004] Capacitors are electrical devices used to accumulate and store electric charge. Capacitors differ from batteries in two ways: first, charge storage in capacitors is based on physical charge separation rather than chemical separation in batteries; second, capacitors charge and discharge at a faster rate than the chemical The response is much faster. [0005] In a conventional capacitor, charge separation is maintained by two conductive plates separated by a dielectric material. In the presence of an applied potential, an electric field is established in t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/042
CPCH01G11/12H01G9/155Y02E60/13H01G11/36H01G11/40B82Y40/00H01G9/058B82Y30/00H01G11/34
Inventor 寇瑞·亚当·佛雷斯雀劳伦斯·P·黑泽尔图夏尔·K·夏曼德尔·都伍德·佛洛依德乔葛里·F·鹏瑟洛威廉·派翠克·伯吉斯乔瑟夫·J·赛德拉克
Owner APPL NANOSTRUCTURED SOLUTIONS LLC
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