Improving the performance of all-solid-state supercapacitors by modifying ionic liquid gel electrolytes with graphene nanosheets prepared by arc-discharge
文献类型：期刊论文
| 作者 | 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
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| 刊名 | Chinese Chemical Letters
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| 出版日期 | 2014 |
| 卷号 | 25期号:6页码:859-864 |
| 关键词 | Graphene Arc discharge Ionic liquid gel Electrolyte All-solid-state supercapacitor |
| ISSN号 | 1001-8417 |
| 通讯作者 | 寇生忠 ; 阎兴斌 |
| 英文摘要 | 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. |
| 学科主题 | 材料科学与物理化学 |
| 收录类别 | SCI |
| 资助信息 | the Top Hundred Talents Program of Chinese Academy of Sciences;the National Natural Science Foundation of China(Nos. 21203223;21303234) |
| 语种 | 英语 |
| WOS记录号 | WOS:000340333800008 |
| 源URL | [http://210.77.64.217/handle/362003/19240]  |
| 专题 | 兰州化学物理研究所_清洁能源化学与材料实验室 |
| 作者单位 | 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 |
| 推荐引用方式 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,&Yan XB.(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. |
入库方式： OAI收割
来源：兰州化学物理研究所
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