Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 138, Issue 50, Pages 16533-16541Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b10782
Keywords
-
Categories
Funding
- State Key Basic Research Program of the PRC [2012CB224805, 2013CB934104]
- National Natural Science Foundation [21001082, 21273161, 21210004, 21322311, 21473038]
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning [2013-13]
- Shanghai Innovation Program [13ZZ026]
- Australian Research Council [DP140104062, DP160104089]
- Deanship of Scientific Research of King Saud University [14-102, 1435-010]
- Fundamental Research Funds for the Central Universities
Ask authors/readers for more resources
High-power sodium-ion batteries (SIBs) with long-term cycling attract increasing attention for large-scale energy storage. However, traditional SIBs toward practical applications still suffer from low rate capability and poor cycle induced by pulverization and amorphorization of anodes at high rate (over 5 C) during the fast ion insertion/extraction process. The present work demonstrates a robust strategy for a variety of (Sb-C, Bi-C, Sn-C, Ge-C, Sb-Bi-C) freestanding metal carbon framework thin films via a space-confined superassembly (SCSA) strategy. The sodium-ion battery employing the Sb-C framework exhibits an unprecedented performance with a high specific capacity of 246 mAh g(-1), long life cycle (5000 cycles), and superb capacity retention (almost 100%) at a high rate of 7.5 C (3.51A g(-1)). Further investigation indicates that the unique framework structure enables unusual reversible crystalline-phase transformation, guaranteeing the fast and long-cyclability sodium storage. This study may open an avenue to developing long-cycle-life and high-power SIBs for practical energy applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available