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Method of manufacturing electrode and its preparation made thereby

An electrode and volumetric technology, applied in carbon preparation/purification, electrode manufacturing, battery electrodes, etc., can solve problems such as unsatisfied

Inactive Publication Date: 2006-11-29
THE UNIV OF NORTH CAROLINA AT CHAPEL HILL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] Therefore, there has been a long-standing need for materials with improved properties, but this need has not been met so far

Method used

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  • Method of manufacturing electrode and its preparation made thereby
  • Method of manufacturing electrode and its preparation made thereby
  • Method of manufacturing electrode and its preparation made thereby

Examples

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Embodiment Construction

[0049] A carbon-based material containing single-walled nanotubes (SWNTs) can be formed by a number of techniques such as laser melting of carbon targets, decomposition of hydrocarbons and arcing between two graphite electrodes.

[0050] 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. A suitable technique for producing SWNT bundles is described in the literature, the disclosure of which is hereby incorporated by reference in its entirety.

[0051] Such as figure 1 As shown, a suitable target 2 is placed in a 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 from graphite powder mixed with 0.6 atomic % Ni and 0.6 atomic % Co and a graphite binder.

[0052] The tube 4 is evacuated by a vacuum pump 6 connected at one end of the tube 4 ...

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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] This application is a divisional application based on the application number 00806392.3 filed on February 24, 2000. [0002] Statement Regarding Federally Sponsored Research or Development [0003] At least some aspects of this invention were made with government support under Contract No. N00014-98-1-0597. The government may have certain rights in the invention. technical field [0004] In the following description certain compounds, devices and some methods are referenced. These references are not necessarily to be construed as an admission that such compounds, devices and methods thereof are prior art under the applicable statute. Background technique [0005] The existence of a third form of carbon called "fullerene" was demonstrated in 1990, triggering a huge wave of research and development aimed at maximizing the potential of this "new" material. [0006] The term "fullerene" is commonly used to denote a f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/00C01B31/02H01M4/58H01M4/02H01M4/04H01M4/133H01M4/1393H01M4/583
CPCY02E60/122H01M4/02B82Y40/00B82Y30/00H01M4/583Y10S977/742C01B31/0253Y10S977/843H01M4/133H01M4/1393Y10S977/842Y10S977/948C01B2202/02H01M4/04Y10S977/75C01B32/168C01B32/05B82B1/00
Inventor O·Z·周B·高
Owner THE UNIV OF NORTH CAROLINA AT CHAPEL HILL
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