Journal
CARBON
Volume 143, Issue -, Pages 116-124Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2018.11.005
Keywords
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Funding
- CAS Interdisciplinary Innovation Team
- Key Discipline of Material Science and Engineering of Suzhou University [2017XJZDXK3]
- Research Team of Anhui Provincial Education Department [2016SCXPTTD]
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Pursuing active, stable, low-cost and well-designed electrode materials with superior rate capability and long-life cycling performance for lithium-ion batteries (LIBs) remains a big challenge. In this work, shuttle-like hollow and porous carbon-coated FeP (FeP@C) structures were synthesized from Fe-based metal-organic frameworks (MOFs) MIL-88 as precursors and used as anodes for LIBs. The FeP@C displays a unique structure with ultrafine FeP nanoparticles distributed in the hollow and porous carbon matrix, which offers large specific surface area and fast charge transfer ability, and alleviates volume change during cycling. As a result, the FeP@C delivers a high maximum lithium storage capacity (902.4 mAh g(-1) at 0.1 A g(-1) for 100 cycles), superior rate capability (reversible capacity of 416 mAh g(-1) at 5.0 A g(-1)) and long-life cycling performance (3000 cycles at 5.0 A g(-1)). The excellent electrochemical performance is related to significant contribution of pseudocapacitive behavior during charge/discharge process, especially at high current density. The current strategy should be promising to synthesize the carbon-coated porous structure from MOFs for next-generation energy-storage application. (C) 2018 Elsevier Ltd. All rights reserved.
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