In-situ activated polycation as a multifunctional additive for Li-S batteries
文献类型：期刊论文
| 作者 | Chen, HW(陈宏伟); Wang, CH(王长虹); Dai, YF; Ge, J(葛军); Lu, W(卢威); Yang, JL; Chen, LW(陈立桅) |
| 刊名 | NANO ENERGY
 |
| 出版日期 | 2016 |
| 卷号 | 26 |
| 通讯作者 | Chen, LW(陈立桅) |
| 英文摘要 | While Li-S batteries are poised to be the next generation high-density energy storage devices, the low sulfur utilization and intrinsic polysulfide shuttle have limited their practical applications. Here, we report that radical polymer Poly(2,2,6,6-tetramethyl-1-piperidinyloxy-4-yl methacrylate) (PTMA) a stable free radical polymer reported to be potential organic electrode materials can perform as a multifunctional sulfur-trapping and catalytic binder for high performance Li-S batteries once activated via in situ electrochemical oxidation. The activated PTMA(+) not only displays strong binding affinity to poly sulfides but also provides PTMA(+)-assisted additional redox sites and improves the kinetics of the cathode reaction. Thus the novel multifunctional additive for Li-S batteries results in improved cycle life, faster rate performance and most importantly, a significantly increase in specific discharge capacity by 80%, with specific capacity of 1254 mAh/g and Coulombic efficiency of 96% at a four-hour charge/discharge (C/4) current rate. (C) 2016 Elsevier Ltd. All rights reserved. |
| 关键词[WOS] | LITHIUM-SULFUR BATTERIES ; ELECTRON-AFFINITY ; GRAPHENE OXIDE ; PERFORMANCE ; CATHODES ; CHEMISTRY ; POLYMER ; ENERGY ; BINDER ; POLYSULFIDES |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000384908700006 |
| 源URL | [http://ir.sinano.ac.cn/handle/332007/4921]  |
| 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. In-situ activated polycation as a multifunctional additive for Li-S batteries[J]. NANO ENERGY,2016,26. |
| APA | Chen, HW.,Wang, CH.,Dai, YF.,Ge, J.,Lu, W.,...&Chen, LW.(2016).In-situ activated polycation as a multifunctional additive for Li-S batteries.NANO ENERGY,26. |
| MLA | Chen, HW,et al."In-situ activated polycation as a multifunctional additive for Li-S batteries".NANO ENERGY 26(2016). |
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