Size-Dependent Confining Effect of Phosphorus inside Carbon Nanotubes for Highly Stable Lithium-Ion Storage
Dan Zhao,
Jian Yu,
Yonghao Zhang
et al.
Abstract:By changing the diameter of carbon nanotubes (CNTs), the phase of the internal phosphorus could be adjusted, which was testified by spherical-chromatic aberration-corrected transmission electron microscopy. Phosphorus inside a doublewalled CNT (P@DWCNT) delivers a stable capacity of 837 mA h g −1 after 700 cycles at 1.0 A g −1 . A stable capacity of 155 mA h g −1 could be delivered by P@DWCNT when forming a full cell with a LiFePO 4 cathode. According to the in situ Raman spectrum, the strain (24 GPa) on DWCNT… Show more
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