Carbon nanometer pipe high energy storage battery negative pole material and is preparation method

A carbon nanotube and battery negative electrode technology is applied in the field of carbon nanotube high energy storage battery negative electrode material and its preparation, and achieves the effects of high hydrogen storage performance, superior performance and stable discharge platform
CN1538543AInactive Publication Date: 2004-10-20TSINGHUA UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TSINGHUA UNIV
Publication Date
2004-10-20
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invented material contains wt ratio 2-5:1 of nano-carbon tube modified by copper and agglomerant of teflon, and conduction agent, which is 1% of total weight. Preparing method includes following steps: after dipping in HF solution, nano-carbon tube in concentrated H2SO4 and HNO3 is boiled; rinsing tube till neutrality by using deionized water; even mixing CuSO4 solution, nano-carbon tube and complexing agent, adjusting pH of solution by sodium hydroxide; titration is carried out by using formalin till Cu2+ is deoxidized from copper complexation solution; mixing nano-carbon tube of deposited metal granules, Teflon and acetylene black fabricates slurry; coating slurry on foam nickel, drying and chill pressing produces electrode material. Performances of the material are high capability of storing hydrogen, specific capacitance 1200-1710mAh / g and stable charging and discharging capability.
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Description

technical field

[0001] The invention relates to a carbon nanotube high energy storage battery negative electrode material and a preparation method thereof, belonging to the technical fields of carbon nanotube material application and electrochemical hydrogen storage. Background technique

[0002] The use of hydrogen energy is pollution-free, zero-emission, and high-efficiency, and is recognized as one of the green energy sources. The key problem hindering the large-scale use of hydrogen energy is the storage and transportation of hydrogen energy. There are many ways to store hydrogen energy, and the practical application of hydrogen energy is limited due to the disadvantages of various storage methods.

[0003] Carbon nanotubes (CNTs) have a unique structure, large specific surface area, multiple hydrogen storage locations (tube outer wall, inner wall, and tube middle), and high hydrogen storage weight density, so they have good application prospects. The electrochemical p...

Claims

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