发明名称 |
GRAPHENE-SULFUR NANOCOMPOSITES FOR RECHARGEABLE LITHIUM-SULFUR BATTERY ELECTRODES |
摘要 |
A method of preparing a graphene-sulfur nanocomposite for a cathode in a rechargeable lithium-sulfur battery comprising thermally expanding graphite oxide to yield graphene layers, mixing the graphene layers with a first solution comprising sulfur and carbon disulfide, evaporating the carbon disulfide to yield a solid nanocomposite, and grinding the solid nanocomposite to yield the graphene-sulfur nanocomposite. Rechargeable-lithium-sulfur batteries having a cathode that includes a graphene-sulfur nanocomposite can exhibit improved characteristics. The graphene-sulfur nanocomposite can be characterized by graphene sheets with particles of sulfur adsorbed to the graphene sheets. The sulfur particles have an average diameter of less than 50 nm. |
申请公布号 |
KR20130119432(A) |
申请公布日期 |
2013.10.31 |
申请号 |
KR20137011213 |
申请日期 |
2011.06.21 |
申请人 |
BATTELLE MEMORIAL INSTITUTE |
发明人 |
LIU JUN;LEMMON JOHN P.;YANG ZHENGUO;CAO YULIANG;LI XIAOLIN |
分类号 |
H01M10/05;H01M4/04;H01M4/58;H01M4/60 |
主分类号 |
H01M10/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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