Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 693, Issue -, Pages 777-781Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.09.192
Keywords
Carbon materials; Lithium-ion battery; Microstructure; Hierarchical porous structure; Carbonaceous porous network
Categories
Funding
- project of NNSFC [51602061]
- Start-up funding for Young talent of Guangdong University of Technology [220413521]
- Scientific and technological project of Administration of Quality and Technology Supervision of Guangdong Province [2015PJ03]
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Constructing sufficient micropores and small mesopores for Li+ storage while maintaining a developed hierarchical macro/mesoporous structure for rapid mass transfer are critical for porous carbons in lithium-ion battery (LIB) applications. Herein, a new kind of hierarchical macro-meso-microporous carbon with high surface area (HSHPC) for LIB application is successfully fabricated by using a porous network structured polymer as a precursor. The as-prepared HSHPC presents a 3D continuous macro/mesopore structure and ultrahigh surface area of 2602 m(2) g(-1). As a result, it exhibits a high specific capacity of 660 mAh g(-1) and stable cycling performance during 100 cycles at a current density of 0.1 A g(-1). Furthermore, the ideal macro/mesoporous network is able to guarantee rapid ion diffusion and transfer, thus attaining an excellent high-rate performance in contrast to graphite. (C) 2016 Elsevier B.V. All rights reserved.
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