Red Phosphorus Nanodots on Reduced Graphene Oxide as a Flexible and Ultra-Fast Anode for Sodium-Ion Batteries

ACS Nano
Yihang LiuChongwu Zhou

Abstract

Sodium-ion batteries offer an attractive option for potential low cost and large scale energy storage due to the earth abundance of sodium. Red phosphorus is considered as a high capacity anode for sodium-ion batteries with a theoretical capacity of 2596 mAh/g. However, similar to silicon in lithium-ion batteries, several limitations, such as large volume expansion upon sodiation/desodiation and low electronic conductance, have severely limited the performance of red phosphorus anodes. In order to address the above challenges, we have developed a method to deposit red phosphorus nanodots densely and uniformly onto reduced graphene oxide sheets (P@RGO) to minimize the sodium ion diffusion length and the sodiation/desodiation stresses, and the RGO network also serves as electron pathway and creates free space to accommodate the volume variation of phosphorus particles. The resulted P@RGO flexible anode achieved 1165.4, 510.6, and 135.3 mAh/g specific charge capacity at 159.4, 31878.9, and 47818.3 mA/g charge/discharge current density in rate capability test, and a 914 mAh/g capacity after 300 deep cycles in cycling stability test at 1593.9 mA/g current density, which marks a significant performance improvement for red phosphorus ...Continue Reading

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Citations

Sep 5, 2018·Chemical Society Reviews·Seyyed Mohsen Beladi-Mousavi, Martin Pumera
Feb 28, 2019·Advanced Materials·Ting JinLifang Jiao
Feb 24, 2019·Proceedings of the National Academy of Sciences of the United States of America·Anne M ArnoldStefanie A Sydlik
Jul 17, 2020·The Journal of Chemical Physics·Lin JingJimmy C Yu
Jan 27, 2019·Advanced Materials·Ziping WuZhongfan Liu
Jan 1, 2021·Advanced Materials·Jun MeiZongyou Yin
Mar 9, 2021·Small·Seong Dae KimJong-Hyun Ahn
May 26, 2021·Advanced Materials·Yu LiMinghua Chen
Oct 6, 2017·ACS Applied Materials & Interfaces·Hanwen LiuShuangyin Wang

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