Rational Design of Cathode Structure for High Rate Performance Lithium-Sulfur Batteries
文献类型：期刊论文
| 作者 | Chen, HW(陈宏伟); Wang, CH(王长虹); Dai, YF; Qiu, SQ(邱胜强); Yang, JL; Lu, W(卢威) ; Chen, LW(陈立桅)
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| 刊名 | NANO LETTERS
 |
| 出版日期 | 2015 |
| 卷号 | 15期号:8页码:6 |
| 关键词 | Li-S battery rate performance free-standing cathode reduced graphene oxide (rGO) poly(anthraquinonyl sulfide) (PAQS) sulfur trapping agent |
| 通讯作者 | Chen, LW (陈立桅) |
| 英文摘要 | Practical applications of Li-S batteries require not only high specific capacities and long cycle lifetimes but also high rate performance. We report a rationally designed Li-S cathode, which consists of a freestanding composite thin film assembled from S nanoparticles, reduced graphene oxide (rGO), and a multifunctional additive poly(anthraquinonyl sulfide) (PAQS). The S nanopartides provide a high initial specific capacity, and the layered and porous rGO structure provides electron and ion transport paths and restricts polysulfide shuttling. PAQS is not only a highly efficient sulfide trapping agent but also an excellent Li+ conductor, which benefits the battery reaction kinetics at a high rate. The resulting cathode exhibits an initial specific capacity of 1255 mAh g(-1) with a decay rate as low as 0.046% per cycles over 1200 cycles. Importantly, it displays a reversible capacity of 615 mAh g(-1) when discharged at a high rate of 8 C (13.744 A g(-1)). |
| 收录类别 | SCI |
| 语种 | 英语 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/3332]  |
| 专题 | 苏州纳米技术与纳米仿生研究所_纳米研究国际实验室_陈立桅团队 |
| 推荐引用方式 GB/T 7714 | Chen, HW,Wang, CH,Dai, YF,et al. Rational Design of Cathode Structure for High Rate Performance Lithium-Sulfur Batteries[J]. NANO LETTERS,2015,15(8):6. |
| APA | Chen, HW.,Wang, CH.,Dai, YF.,Qiu, SQ.,Yang, JL.,...&Chen, LW.(2015).Rational Design of Cathode Structure for High Rate Performance Lithium-Sulfur Batteries.NANO LETTERS,15(8),6. |
| MLA | Chen, HW,et al."Rational Design of Cathode Structure for High Rate Performance Lithium-Sulfur Batteries".NANO LETTERS 15.8(2015):6. |
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