Sulfur‐Rich Phosphorus Sulfide Molecules for Use in Rechargeable Lithium Batteries. Issue 11 (10th February 2017)

• Record Type: Journal Article
• Authors: Li, Xiaona; Liang, Jianwen; Lu, Yue; Hou, Zhiguo; Cheng, Qiushi; Zhu, Yongchun; Qian, Yitai
• Is Part Of: Angewandte Chemie international edition. Volume 56:Issue 11(2017)
• Page Start: 2937
• Page End: 2941
• Publication Date: 2017-02-10
• Subjects: electrochemical reactions -- lithium ion battery -- phosphorus sulfide molecule -- sulfur-rich compounds; Chemistry -- Periodicals; 540
• DOI: 10.1002/anie.201611691
• Languages: English
• ISSNs: 1433-7851

Abstract

Abstract: A new family of sulfur‐rich phosphorus sulfide molecules (P4 S10+ n ) and their electrochemical reaction mechanism with metallic Li has been explored. These P4 S10+ n molecules are synthesized by the reaction between P4 S10 and S. For Li batteries, the P4 S40 molecule in the series of P4 S10+ n molecules provides the highest capacity, which has a first discharge capacity of 1223 mAh g −1 at 100 mA g −1 and stabilizes at approximately 720 mAh g −1 at 500 mA g −1 after 100 cycles. This new class of sulfur‐rich P4 S10+ n molecules and its electrochemical behavior for room‐temperature Li + storage could provide novel insights for phosphorus sulfide molecules and high‐energy batteries. Abstract : P.S. Add sulfur : A new family of sulfur‐rich P4 S10+ n molecules is made by co‐melting of elemental S with as‐prepared P4 S10 . Their reaction with elemental Li is explored and it is shown that as the sulfur content increases the capacity as a cathode material for a Li battery increases.