Monodispersed sulfur nanoparticles for lithium-sulfur batteries with theoretical performance

Hongwei Chen; Changhong Wang; Weiling Dong; Wei Lu; Zhaolong Du; Liwei Chen

doi:10.1021/nl504963e

Monodispersed sulfur nanoparticles for lithium-sulfur batteries with theoretical performance

Nano Lett. 2015 Jan 14;15(1):798-802. doi: 10.1021/nl504963e. Epub 2014 Dec 31.

Authors

Hongwei Chen¹, Changhong Wang, Weiling Dong, Wei Lu, Zhaolong Du, Liwei Chen

Affiliation

¹ i-Lab, Suzhou Institute of Nano-Tech and Nano-Bionics (SINANO), Chinese Academy of Sciences , Suzhou 215123, China.

PMID: 25546227
DOI: 10.1021/nl504963e

Abstract

While Li-S batteries are poised to be the next generation high-density energy storage devices, low sulfur utilization and slow rate performance have limited their practical applications. Here, we report the synthesis of monodispersed S8 nanoparticles (NPs) with different diameter and the nanosize dependent kinetic characteristics of the corresponding Li-S batteries. Most remarkably, 5 nm S NPs display the theoretical discharging/charging capacity of 1672 mAh g(-1) at 0.1 C rate and a discharge capacity of 1089 mAh g(-1) at 4 C.

Keywords: Li−S battery; Sulfur nanoparticle; nanosize effect; theoretical specific capacity.

Publication types

Research Support, Non-U.S. Gov't