Issue 27, 2020

Anisotropic, low-tortuosity and ultra-thick red P@C-Wood electrodes for sodium-ion batteries

Abstract

Red phosphorus (P) is considered to be the most suitable electrode for sodium-ion batteries due to its low cost, earth abundance and high theoretical capacity. Numerous studies have focused on improving the low conductivity and the extremely large volume change of red P during the cycling process. However, these strategies heavily decrease the P mass loading in the electrode. Herein, inspired by natural wood, we successfully develop an ultra-thick bulk red Phosphorus@Carbon-Wood (red P@C-Wood) electrode via the vaporization-condensation process. The sodium-ion batteries assembled with the fabricated red P@C-Wood electrode provide a high areal capacity of 18 mA h cm−2 (≈5 times those of other reported electrodes) and the P mass loading of up to 8.4 mg cm−2 (≥2 times those of other reported electrodes). The combination of red phosphorus and carbonized wood provides a new strategy for people to improve the areal energy density of lithium and sodium batteries.

Graphical abstract: Anisotropic, low-tortuosity and ultra-thick red P@C-Wood electrodes for sodium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
18 Apr 2020
Accepted
11 Jun 2020
First published
11 Jun 2020

Nanoscale, 2020,12, 14642-14650

Anisotropic, low-tortuosity and ultra-thick red P@C-Wood electrodes for sodium-ion batteries

L. Han, J. Wang, X. Mu, C. Liao, W. Cai, Z. Zhao, Y. Kan, W. Xing and Y. Hu, Nanoscale, 2020, 12, 14642 DOI: 10.1039/D0NR03059G

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