Tuning the Shell Number of Multishelled Metal Oxide Hollow Fibers for Optimized Lithium-Ion Storage

ACS Nano
Jin SunShaojun Guo

Abstract

Searching the long-life transition-metal oxide (TMO)-based materials for future lithium-ion batteries (LIBs) is still a great challenge because of the mechanical strain resulting from volume change of TMO anodes during the lithiation/delithiation process. To well address this challenging issue, we demonstrate a controlled method for making the multishelled TMO hollow microfibers with tunable shell numbers to achieve the optimal void for efficient lithium-ion storage. Such a particularly designed void can lead to a short diffusion distance for fast diffusion of Li+ ions and also withstand a large volume variation upon cycling, both of which are the key for high-performance LIBs. Triple-shelled TMO hollow microfibers are a quite stable anode material for LIBs with high reversible capacities (NiO: 698.1 mA h g-1 at 1 A g-1; Co3O4: 940.2 mA h g-1 at 1 A g-1; Fe2O3: 997.8 mA h g-1 at 1 A g-1), excellent rate capability, and stability. The present work opens a way for rational design of the void of multiple shells in achieving the stable lithium-ion storage through the biomass conversion strategy.

References

Feb 8, 2008·Nature·M Armand, J-M Tarascon
Nov 19, 2011·Science·Bruce DunnJean-Marie Tarascon
Feb 5, 2014·ACS Applied Materials & Interfaces·Seung Ho Choi, Yun Chan Kang
Jul 3, 2015·Chemical Society Reviews·Jian QiDan Wang
Jan 18, 2016·Nanoscale Horizons : the Home for Rapid Reports of Exceptional Significance in Nanoscience and Nanotechnolgy·Hao Bin WuXiong Wen David Lou

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Citations

Jun 30, 2018·Chemistry : a European Journal·Lin ChenMingdeng Wei
Feb 6, 2019·Chemistry : a European Journal·Miao LiuLingzhi Zhao
May 25, 2021·ACS Applied Materials & Interfaces·Haipeng LiuHaijun Zhang

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