High-rate aluminium yolk-shell nanoparticle anode for Li-ion battery with long cycle life and ultrahigh capacity
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Li-2015-High-rate aluminium.pdf
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Author(s)
Li, Sa
Zhao, Yu Cheng
Wang, Chao
Wang, Chang An
Li, Ju
Niu, Jun Jie
So, Kangpyo
Date Issued
August 2015
Journal
Nature Communications
Publisher
Nature Publishing Group
Citation
Li, Sa, Junjie Niu, Yu Cheng Zhao, Kang Pyo So, Chao Wang, Chang An Wang, and Ju Li. “High-Rate Aluminium Yolk-Shell Nanoparticle Anode for Li-Ion Battery with Long Cycle Life and Ultrahigh Capacity.” Nat Comms 6 (August 5, 2015): 7872. © 2015 Macmillan Publishers Limited
Version
Final published version
Abstract
Alloy-type anodes such as silicon and tin are gaining popularity in rechargeable Li-ion batteries, but their rate/cycling capabilities should be improved. Here by making yolk-shell nanocomposite of aluminium core (30 nm in diameter) and TiO[subscript 2] shell (~3 nm in thickness), with a tunable interspace, we achieve 10 C charge/discharge rate with reversible capacity exceeding 650 mAh g[superscript −1] after 500 cycles, with a 3 mg cm[superscript −2] loading. At 1 C, the capacity is approximately 1,200 mAh g[superscript −1] after 500 cycles. Our one-pot synthesis route is simple and industrially scalable. This result may reverse the lagging status of aluminium among high-theoretical-capacity anodes.
MIT Department
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Nuclear Science and Engineering
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DOI of Published Version
https://doi.org/10.1038/ncomms8872
