Yeast-Derived Sulfur Host for the Application of Sustainable Li–S Battery Cathode

A porous carbon structure (PCS) is considered as an ideal electrode material for lithium–sulfur (Li–S) batteries, owing to its flexible texture, large surface area, and high electrical conductivity. In this work, we use food-grade yeast as the carbon precursor, which is proliferated in glucose solut...

Full description

Saved in:
Bibliographic Details
Published in:Batteries (Basel) 2023-06, Vol.9 (6), p.289
Main Authors: He, Zhanhui, Dou, Xinyi, Liu, Weilin, Zhang, Luxian, Lv, Laixi, Liu, Jiehua, Meng, Fancheng
Format: Article
Language:English
Subjects:
Biomass
Carbon
Carbon compounds
cathode
Cathodes
Composite materials
Design and construction
Electrical resistivity
Electrode materials
Electrodes
Electrolytes
Energy consumption
Gas absorption
Graphene
large surface area
Lithium
Lithium cells
Lithium sulfur batteries
lithium–sulfur battery
Materials
Nitrogen
Phase transitions
porous carbon
Porous materials
Solvents
Surface area
Surface layers
X ray photoelectron spectroscopy
Yeast
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A porous carbon structure (PCS) is considered as an ideal electrode material for lithium–sulfur (Li–S) batteries, owing to its flexible texture, large surface area, and high electrical conductivity. In this work, we use food-grade yeast as the carbon precursor, which is proliferated in glucose solution, carbonized with a NaCl template to yield a sheet-like carbon structure, and reactivated at different temperatures with KOH. The porous carbon material is then applied as the sulfur host of the Li–S battery cathode, and the electrode is systematically characterized by means of SEM, TEM, XRD, Raman, XPS, thermogravimetric (TG), nitrogen gas adsorption–desorption, and electrochemical measurements. The results show that the PCS obtained at 800 °C has an ultra-high surface area of 2410 m2 g−1 and exhibits excellent performance for a Li–S battery cathode. The initial discharge capacity of the PCS-800/S cathode is 1502 mAh g−1, which accounts for 90% of the theoretical capacity value.
ISSN:2313-0105
2313-0105
DOI:10.3390/batteries9060289