期刊
JOURNAL OF MATERIALS CHEMISTRY
卷 20, 期 43, 页码 9644-9650出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c0jm01633k
关键词
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资金
- National Natural Science Foundation of China [50972101]
- Guangdong-Hong Kong Public Bidding Program [20091685]
- Program for New Century Excellent Talents in University [NCET-07-0607]
- Foundation of State Key Laboratory of Coal Conversion [10-11-913]
- Program of Introducing Talents of Discipline to Universities, China [B06006]
Graphene is introduced into a lithium-ion battery (LIB) as a type of novel but powerful planar conductive additive and the flexible graphene-based conducting network is characterized by a novel plane-to-point conducting mode with exceptional electron transport properties and unique geometrical nature (a soft and ultrathin planar structure). With a much lower fraction of graphene additives than those of commercial carbon based additives, the graphene-introduced LiFePO(4) cathode shows better charge/discharge performance than commercial cases. Graphene also shows a better performance compared to carbon nanotubes, another type of novel conductive additive with similar fractions. These results present us an indication that graphene will possibly find early application as a flexible and planar conductive additive in high performance LIBs, as our further efforts have shown that a graphene-introduced battery is of better performance as compared to real commercial batteries with conventional additives.
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