Prussian Blue: A Potential Material to Improve the Electrochemical Performance of Lithium-Sulfur Batteries.
ACS Appl Mater Interfaces
; 9(5): 4397-4403, 2017 Feb 08.
Article
em En
| MEDLINE
| ID: mdl-27479707
ABSTRACT
The Prussian blue, as a potential adsorbent of polysulfides to suppress the dissolution and shuttle of polysulfides for lithium-sulfur batteries, has been studied in this work. Our results show that Prussian blue improves the electrochemical reaction kinetics during discharge/charge processes. More importantly, the cathode with Prussian blue exhibits better cycling stability and higher discharge capacity retention (722 mAh g-1 at 0.2 A g-1 after 100 cycles) than the one without Prussian blue (151 mAh g-1). These improvements of electrochemical performances are ascribed to the fact that Prussian blue is very effective in suppressing the dissolution of polysulfides into liquid electrolyte by chemical adsorption.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
ACS Appl Mater Interfaces
Assunto da revista:
BIOTECNOLOGIA
/
ENGENHARIA BIOMEDICA
Ano de publicação:
2017
Tipo de documento:
Article