期刊
SCIENTIFIC REPORTS
卷 7, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep40574
关键词
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资金
- National Natural Science Foundation of China [51672021, 51572014, 51272019, U1332107, U1532105]
- State Key Laboratory for Coal Resources and Safe Mining, China University of Mining Technology [SKLCRSM14KFA02]
- Argonne National Laboratory
- Argonne, a U.S. Department of Energy Office of Science laboratory [DE-AC02-06CH11357]
Porous carbon is one of the most promising alternatives to traditional graphite materials in lithium-ion batteries. This is not only attributed to its advantages of good safety, stability and electrical conductivity, which are held by all the carbon-based electrodes, but also especially ascribed to its relatively high capacity and excellent cycle stability. Here we report the design and synthesis of a highly porous pure carbon material with multifractal structures. This material is prepared by the vacuum carbonization of a zinc-based metal-organic framework, which demonstrates an ultrahigh lithium storage capacity of 2458 mAhg(-1) and a favorable high-rate performance. The associations between the structural features and the lithium storage mechanism are also revealed by small-angle X-ray scattering (SAXS), especially the closed pore effects on lithium-ion storage.
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