Walnut shell - Derived activated carbon: Synthesis and its application in the sulfur cathode for lithium-sulfur batteries

Authors

Jun Liu, Guangdong University of Technology
Bin Liu, Guangdong University of TechnologyFollow
Chengwen Wang, Guangdong University of Technology
Zongxiong Huang, Guangdong University of Technology
Liecong Hu, Guangdong University of Technology
Xi Ke, Guangdong University of Technology
Liying Liu, Guangdong University of Technology
Zhicong Shi, Guangdong University of Technology
Zaiping Guo, University of Wollongong, Guangdong University of Technology,Follow

RIS ID

114657

Publication Details

Liu, J., Liu, B., Wang, C., Huang, Z., Hu, L., Ke, X., Liu, L., Shi, Z. & Guo, Z. (2017). Walnut shell - Derived activated carbon: Synthesis and its application in the sulfur cathode for lithium-sulfur batteries. Journal of Alloys and Compounds, 718 373-378.

Abstract

Biomass walnut shell was used to prepare activated carbon (AC) through a carbonization treatment and an activation procedure with potassium hydroxide (KOH). AC showed hierarchical pores: 0.6 nm micropores, 2.7 nm mesopores and macropores with average diameter of 50 nm, providing a large specific surface area of 2318 m2 g¿1. This highly porous AC was tested as a host material to encapsulate sulfur via a vapor phase infusion process. The developed AC-S electrode showed a high initial specific capacity of 1350 mAh g¿1 and good capacity retention over 100 cycles at 0.1 C for lithium¿sulfur battery.