Carbon nanometer pipe high energy storage battery negative pole material and is preparation method |
Title： |
| Carbon nanometer pipe high energy storage battery negative pole material and is preparation method |
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Application Number： |
200310101676 |
Application Date： |
2003/10/24 |
Announcement Date： |
2004/10/20 |
Pub. Date： |
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Publication Number： |
1538543 |
Announcement Number： |
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Grant Date： |
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Granted Pub. Date： |
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ApplicationType： |
Invention |
State/Country： |
11[China|beijing] |
IPC： |
H01M 4/04H01M 4/58H01M 4/62 |
Applicant(s)： |
Tsinghua Univ. |
Inventor(s)： |
Liu Jing, Mao Zongqiang, Pan Wenyu |
Key Words： |
Carbon nanometer pipe, high energy storage, battery, negative pole material, preparation method |
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. |
Claim： |
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Priority： |
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PCT： |
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LegalStatus： |
2006-5-17Date of deemed withdrawal |
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