Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 764, Issue -, Pages 416-423Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2018.06.072
Keywords
Li-ion battery; Debossed structure; Ionic diffusion; Carbon; Nanocomposites
Categories
Funding
- Technology Innovation Program - Ministry of Trade, Industry & Energy (MOTIE, Korea) [10080656]
- Korea Evaluation Institute of Industrial Technology (KEIT) [10080656] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Owing to their superb mechanical durability resulting from the dramatic volume changes of the Sn nanoparticles and high electrical conductivity, carbon and tin (Sn) nanocomposites have received an increasing attention in view of their application as anode materials for lithium ion batteries (LIBs). However, due to the poor ionic diffusion capability for Li ions during the cycling, the low ultrafast performance for energy storage remains rather limited. In the present study, aiming to improve the ionic diffusion capability for Li ions, we suggest a novel design of the debossed structure of carbon and Sn nanocomposites by electrospinning, carbonization, and the debossing process. The electrode based on the debossed structure exhibits a noticeable cycling stability and high discharge capacity (677 mA h g(-1) after 100 cycles at 100 mA g(-1)), an excellent rate capability (482 mA h g(-1) at 2000 mA g(-1)), and an outstanding ultrafast cycling stability (275 mA h g(-1) after 500 cycles at 2000 mA g(-1)). Therefore, this novel design of the debossed structure based on carbon and Sn nanocomposites offers attractive effects, such as the effective accommodation of dramatic volume changes for the Sn nanoparticles, as well as an improved ionic diffusion performance of Li ions. (C) 2018 Elsevier B.V. All rights reserved.
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