| Graphene-Cellulose Paper Flexible Supercapacitors | |
| Z. Weng; Y. Su; D. W. Wang; F. Li; J. H. Du; H. M. Cheng | |
| 2011 | |
| 发表期刊 | Advanced Energy Materials
 |
| ISSN | 1614-6832 |
| 卷号 | 1期号:5页码:917-922 |
| 摘要 | A simple and scalable method to fabricate graphene-cellulose paper (GCP) membranes is reported; these membranes exhibit great advantages as freestanding and binder-free electrodes for flexible supercapacitors. The GCP electrode consists of a unique three-dimensional interwoven structure of graphene nanosheets and cellulose fibers and has excellent mechanical flexibility, good specific capacitance and power performance, and excellent cyclic stability. The electrical conductivity of the GCP membrane shows high stability with a decrease of only 6% after being bent 1000 times. This flexible GCP electrode has a high capacitance per geometric area of 81 mF cm(-2), which is equivalent to a gravimetric capacitance of 120 F g(-1) of graphene, and retains >99% capacitance over 5000 cycles. Several types of flexible GCP-based polymer supercapacitors with various architectures are assembled to meet the power-energy requirements of typical flexible or printable electronics. Under highly flexible conditions, the supercapacitors show a high capacitance per geometric area of 46 mF cm(-2) for the complete devices. All the results demonstrate that polymer supercapacitors made using GCP membranes are versatile and may be used for flexible and portable micropower devices. |
| 部门归属 | [weng, zhe; su, yang; li, feng; du, jinhong; cheng, hui-ming] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [wang, da-wei] univ queensland, arc ctr excellence funct nanomat, australian inst bioengn & nanotechnol, brisbane, qld 4072, australia.;cheng, hm (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, 72 wenhua rd, shenyang 110016, peoples r china;cheng@imr.ac.cn |
| 关键词 | Carbon-nanotube Electrodes Gel Polymer Electrolytes Double-layer Capacitors Energy-storage Devices Lithium Batteries Composite Films Performance |
| URL | 查看原文 |
| WOS记录号 | WOS:000295140100029 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.imr.ac.cn/handle/321006/30772 |
| 专题 | 中国科学院金属研究所 |
| 推荐引用方式 GB/T 7714 | Z. Weng,Y. Su,D. W. Wang,et al. Graphene-Cellulose Paper Flexible Supercapacitors[J]. Advanced Energy Materials,2011,1(5):917-922. |
| APA | Z. Weng,Y. Su,D. W. Wang,F. Li,J. H. Du,&H. M. Cheng.(2011).Graphene-Cellulose Paper Flexible Supercapacitors.Advanced Energy Materials,1(5),917-922. |
| MLA | Z. Weng,et al."Graphene-Cellulose Paper Flexible Supercapacitors".Advanced Energy Materials 1.5(2011):917-922. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Graphene-Cellulose P（822KB） | 开放获取 | -- | ||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论