| Improving the performance of all-solid-state supercapacitors by modifying ionic liquid gel electrolytes with graphene nanosheets prepared by arc-discharge | |
| Department | 清洁能源化学与材料实验室 |
Shi MJ(施敏捷)1,2; Kou SZ(寇生忠)1; Shen BS(申保收)2 ; Lang JW(郎俊伟)2; Yang Z(杨志)1; Yan XB(阎兴斌)2; Kou SZ(寇生忠); Yan XB(阎兴斌)
| |
| 2014 | |
| Source Publication | Chinese Chemical Letters
 |
| ISSN | 1001-8417 |
| Volume | 25Issue:6Pages:859-864 |
| Abstract | Ionic liquid gel polymers have widely been used as the electrolytes in all-solid-state supercapacitors, but they suffer from low ionic conductivity and poor electrochemical performance. Arc discharge is a fast, low-cost and scalable method to prepare multi-layered graphene nanosheets, and as-made graphene nanosheets (denoted as ad-GNSs) with few defects, high electrical conductivity and high thermal stability should be favorable conductive additive materials. Here, a novel ionic liquid gel polymer electrolyte based on an ionic liquid (EMIMNTF2) and an copolymer (P(VDF-HFP)) was modified by the addition of ad-GNSs as an ionic conducting promoter. This modified gel electrolyte shows excellent thermal stability up to 400 °C and a wide electrochemical window of 3 V. An all-solid-state supercapacitor based on commercial activated carbon was fabricated using this modified ionic liquid gel polymer electrolyte, which shows obviously improved electrochemical behaviors compared with those of the corresponding all-solid-state supercapacitor using pure ionic liquid gel polymer electrolyte. Specially, smaller internal resistance, higher specific capacitance, better rate performance and cycling stability are achieved. These results indicate that the ionic liquid gel polymers modified by ad-GNSs would be promising and suitable gel electrolytes for high performance all-solid-state electrochemical devices. |
| Keyword | Graphene Arc Discharge Ionic Liquid Gel Electrolyte All-solid-state Supercapacitor |
| Subject Area | 材料科学与物理化学 |
| DOI | 10.1016/j.cclet.2014.04.010 |
| Funding Organization | the Top Hundred Talents Program of Chinese Academy of Sciences;the National Natural Science Foundation of China(Nos. 21203223;21303234) |
| Indexed By | SCI |
| If | 1.587 |
| Language | 英语 |
| Funding Project | 低维材料与化学储能课题组 |
| compositor | 第二作者单位 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.licp.cn/handle/362003/19240 |
| Collection | 清洁能源化学与材料实验室 |
| Corresponding Author | Kou SZ(寇生忠); Yan XB(阎兴斌) |
| Affiliation | 1.Lanzhou Univ Technol, Dept Mat Sci & Engn, State Key Lab Gansu Adv Nonferrous Met Mat, Lanzhou 730050, Peoples R China 2.Chinese Acad Sci, Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, Lanzhou 730000, Peoples R China |
| Recommended Citation GB/T 7714 | Shi MJ,Kou SZ,Shen BS,et al. Improving the performance of all-solid-state supercapacitors by modifying ionic liquid gel electrolytes with graphene nanosheets prepared by arc-discharge[J]. Chinese Chemical Letters,2014,25(6):859-864. |
| APA | Shi MJ.,Kou SZ.,Shen BS.,Lang JW.,Yang Z.,...&阎兴斌.(2014).Improving the performance of all-solid-state supercapacitors by modifying ionic liquid gel electrolytes with graphene nanosheets prepared by arc-discharge.Chinese Chemical Letters,25(6),859-864. |
| MLA | Shi MJ,et al."Improving the performance of all-solid-state supercapacitors by modifying ionic liquid gel electrolytes with graphene nanosheets prepared by arc-discharge".Chinese Chemical Letters 25.6(2014):859-864. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 1-s2.0-S100184171400（921KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment