title: Prussian Blue: A Potential Material to Improve the Electrochemical Performance of Lithium-Sulfur Batteries.
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-1at 0.2 A g-1after 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.
authors.affiliation: State Key Lab of Physical Chemistry of Solid Surfaces, Collaborative Innovation Centre of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P.R. China.
authors.forename: Yueying
authors.initials: Y
authors.lastname: Peng
authors.affiliation: College of Energy, Xiamen University , Xiamen 361005, P.R. China.
authors.forename: Bing
authors.initials: B
authors.lastname: Li
authors.affiliation: State Key Lab of Physical Chemistry of Solid Surfaces, Collaborative Innovation Centre of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P.R. China.
authors.forename: Yunhui
authors.initials: Y
authors.lastname: Wang
authors.affiliation: State Key Lab of Physical Chemistry of Solid Surfaces, Collaborative Innovation Centre of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P.R. China.
authors.forename: Xinyi
authors.initials: X
authors.lastname: He
authors.affiliation: State Key Lab of Physical Chemistry of Solid Surfaces, Collaborative Innovation Centre of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P.R. China.
authors.forename: Jianxing
authors.initials: J
authors.lastname: Huang
authors.affiliation: State Key Lab of Physical Chemistry of Solid Surfaces, Collaborative Innovation Centre of Chemistry for Energy Materials, College of Chemistry and Chemical Engineering, Xiamen University , Xiamen 361005, P.R. China.|College of Energy, Xiamen University , Xiamen 361005, P.R. China.
authors.forename: Jinbao
authors.initials: J
authors.lastname: Zhao
keywords: chemical adsorption; electrochemical performances; lithium−sulfur batteries; polysulfides; prussian blue