TIN CARBON COMPOSITE, METHOD FOR PREPARING SAME, BATTERY NEGATIVE ELECTRODE COMPONENT COMPRISING SAME, AND BATTERY HAVING THE NEGATIVE ELECTRODE COMPONENT
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United States of America Patent
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Issued Date -
Dec 26, 2013
app pub date -
Mar 8, 2012
filing date -
Mar 10, 2011
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Abandoned
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Abstract
Disclosed is a tin-carbon mesoporous composite for a lithium ion battery negative electrode material, and a method for preparing the same. Using a mesoporous molecular sieve as a template, the precursors of tin and carbon are caused to fill the mesopores of the template and carbonized under nitrogen to obtain a composite of stannic oxide and carbon, and the stannic oxide is encapsulated by the carbon; and then the tin-carbon mesoporous composite for lithium ion battery negative electrode material is obtained by hydrothermal treatment, carbonization, etching, and high temperature carbothermic reduction. The tin-carbon mesoporous composite for lithium ion battery negative electrode material synthesized in the present invention has a reversible capacity of 550 mAh·g−1, after 100 cycles at a current density of 500 mA·g−1.
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