Nanotube-based high energy material and method

A technology of carbon-based materials and carbon nanotubes, applied in the direction of single-walled carbon nanotubes, nanostructure manufacturing, nanotechnology, etc., can solve problems such as unsatisfied

Inactive Publication Date: 2002-05-01
THE UNIV OF NORTH CAROLINA AT CHAPEL HILL
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  • Abstract
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  • Claims
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Problems solved by technology

[0010] Therefore, there has been a long-standing need for mate...

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  • Nanotube-based high energy material and method
  • Nanotube-based high energy material and method
  • Nanotube-based high energy material and method

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Embodiment Construction

[0025] Detailed description of preferred embodiments

[0026] Through many techniques such as laser melting of carbon targets, decomposition of hydrocarbons, and arc formation between two graphite electrodes, a carbon-based material containing single-walled nanotubes (SWNT) can be formed.

[0027] For example, in C. Bower et al., Synthesis and Structure of Pristine and Cesium Intercalated Single-Walled Carbon Nanotubes, Applied Physics: A67, pp. 47-52, spring 1998. The literature describes a suitable technique for producing SWNT bundles. , The entire content of its disclosure is incorporated herein by reference.

[0028] Such as figure 1 As shown, a suitable target 2 is placed in the quartz tube 4 according to this technique. Preferably, the target 2 is made of graphite and contains a Ni / Co catalyst. In a preferred embodiment, the target is formed of graphite powder mixed with 0.6 atomic% Ni and 0.6 atomic% Co and a graphite binder.

[0029] A vacuum pump 6 connected to one end o...

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Abstract

A carbon-based material containing an allotrope of carbon, such as single-walled carbon nanotubes, is capable of accepting and intercalated alkali metal. The material exhibits a reversible capacity ranging from approximately 650 mAh/g-1,000 mAh/g. The high capacity of the material makes it attractive for a number of applications, such as a battery electrode material. A method of producing a single-walled carbon nanotube material includes purifying an as-recovered nanotube material, and depositing the purified material onto a conductive substrate. The coated substrate is incorporated into an electrochemical cell, an its ability to accept intercalated materials, such as an alkali metal (e.g.-lithium) is measured.

Description

[0001] Statement regarding research or development funded by the federal government [0002] At least some aspects of the invention were made with government funding under Contract No. N00014-98-1-0597. The government may have certain rights in the invention. Background of the invention [0003] Certain compounds, devices, and methods are referenced in the following description. It is not necessary to interpret these references as acknowledging that such compounds, devices and methods are prior art under the regulations of actual application. [0004] The existence of a third method called "fullerene" carbon was proved in 1990, which triggered a huge wave of research and development aimed at maximizing the potential of this "new" material. [0005] The term "fullerene" is generally used to refer to a family of carbon molecules with a cage-shaped hollow lattice structure. These "cages" can be of different shapes, such as balls ("jump balls"), or tubes ("nanotu...

Claims

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Application Information

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IPC IPC(8): C01B31/02H01M4/02H01M4/04H01M4/133H01M4/1393H01M4/58H01M4/583
CPCH01M4/133C01B2202/02H01M4/02Y10S977/842C01B31/0253Y10S977/75B82Y40/00Y02E60/122H01M4/1393Y10S977/948Y10S977/843H01M4/04B82Y30/00H01M4/583Y10S977/742C01B32/168C01B32/05B82B1/00
Inventor O·Z·周B·高
Owner THE UNIV OF NORTH CAROLINA AT CHAPEL HILL
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