中文摘要：

通过碳炔类似物与单质硫共热的办法制备了多硫化碳炔，利用Raman、XRD等手段对其进行了表征。考察了多硫化碳炔分别在1 mol／L LiPF6／EC＋DEC和1 mol／L LiClO4／DOL＋DME电解液中的电化学性能，结果表明：多硫化碳炔在1 mol／L LjClO4／DOL＋DME电解液中首次放电比容量为747mAh／g，60次循环比容量为236mAh／g，容量保持率仅为31％，效率低于92％，容量衰减较快。在1mol／L LiPF6／EC＋DEC电解液中电池首放电比容量可达799mAh／g，60次循环后比容量仍能到达520mAh／g，容量保持率可达65％，效率几乎100％，并讨论了多硫化碳炔在这两种电解液中的差异。

英文摘要：

Carbyne polysulfide was prepared by co-heating carbyne analog and element sulfur and was characterized by Raman, XRD. The electrochemical characters were investigated respectively in two electrolytes of 1 mol/L LiPF6/EC＋DEC and 1 mol/L LiClO4/DOL＋DME. The results showed that carbyne polysulfide in 1 mol/L LiClO4/DOL＋DME had characters with 747 mAh/g at the 1^st cycle and 236 mAh/g at the 60^th,the capacity retention was 31.5%,and the capacity was faded rapidly,the efficiency was lower than 92%. While, carbyne polysulfide in 1 mol/L LiPF6/ EC＋DEC had better characters with 800 mAh/g at the 1^st cycle and 510 mAh/g at the 60^th cycle,the capacity retention was 65 %, the efficiencies were almost 100%. In this paper, the reasons of the differences in the two electrolytes were discussed.