Dual-confined SeS2 cathode based on polyaniline-assisted double-layered micro/mesoporous carbon spheres for advanced Li-SeS(2 )battery
文献类型：期刊论文
| 作者 | Hu, Jinlong2; Ren, Yilun1,2; Zhang, Lingzhi2
|
| 刊名 | JOURNAL OF POWER SOURCES
 |
| 出版日期 | 2020-04-15 |
| 卷号 | 455页码:9 |
| ISSN号 | 0378-7753 |
| 关键词 | Li-SeS2 batteries Double-layered micro/mesoporous carbon spheres Dual-confined cathode Polyaniline-assisted Cycling stability |
| DOI | 10.1016/j.jpowsour.2020.227955 |
| 通讯作者 | Zhang, Lingzhi(lzzhang@ms.giec.ac.cn) |
| 英文摘要 | Selenium-sulfur solid solutions (SexSy) attracts soaring attention owing to its improved electrical conductivity over sulfur and higher theoretical specific capacity than selenium. Herein, high-performance lithium-selenium/sulfur batteries with a dual-confined cathode configuration by encapsulating SeS2 in double-layered hollow micro/mesoporous carbon spheres (DSMCs) with a conductive polyaniline (PANI) protection sheath are proposed. Polysulfides/polyselenides are efficiently restricted in the cathode via physical and chemical entrapment from DSMCs and PANI as well as chemical binding between selenium and sulfur. Benefiting from the distinct advantages of SeS2 and the well-constructed host framework, the cathode achieves high capacity utilization of 1018 mAh g(-1) at 0.2 A g(-1) , together with outstanding rate capability of 619 mAh g(-1) at 2 A g(-1) and excellent cycle life over 500 cycles with almost 100% Coulombic efficiency. The novel SexSy based cathode demonstrates a promising route to surmount some bottlenecks of current lithium-sulfur systems for high-performance rechargeable batteries. |
| WOS关键词 | LITHIUM ; SULFUR ; COMPOSITE ; BATTERIES ; SELENIUM ; MECHANISM ; LIFE |
| 资助项目 | Guangzhou Municipal Project for Science Technology[201509010018] ; National Natural Science Foundation of China[21573239] |
| WOS研究方向 | Chemistry ; Electrochemistry ; Energy & Fuels ; Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000523640000011 |
| 资助机构 | Guangzhou Municipal Project for Science Technology ; National Natural Science Foundation of China |
| 源URL | [http://ir.giec.ac.cn/handle/344007/27078]  |
| 专题 | 中国科学院广州能源研究所 |
| 通讯作者 | Zhang, Lingzhi |
| 作者单位 | 1.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangdong Prov Key Lab New & Renewable Energy Res, Key Lab Renewable Energy, Guangzhou 510640, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hu, Jinlong,Ren, Yilun,Zhang, Lingzhi. Dual-confined SeS2 cathode based on polyaniline-assisted double-layered micro/mesoporous carbon spheres for advanced Li-SeS(2 )battery[J]. JOURNAL OF POWER SOURCES,2020,455:9. |
| APA | Hu, Jinlong,Ren, Yilun,&Zhang, Lingzhi.(2020).Dual-confined SeS2 cathode based on polyaniline-assisted double-layered micro/mesoporous carbon spheres for advanced Li-SeS(2 )battery.JOURNAL OF POWER SOURCES,455,9. |
| MLA | Hu, Jinlong,et al."Dual-confined SeS2 cathode based on polyaniline-assisted double-layered micro/mesoporous carbon spheres for advanced Li-SeS(2 )battery".JOURNAL OF POWER SOURCES 455(2020):9. |
入库方式： OAI收割
来源：广州能源研究所
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