Scalable and fast fabrication of graphene integrated micro-supercapacitors with remarkable volumetri

来源 :能源化学 | 被引量 : 0次 | 上传用户:caonimadoucunzai
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Microscale electrochemical energy storage devices,e.g.,micro-supercapacitors(MSCs),possessing tai-lored performance and diversified form factors of lightweight,miniaturization,flexibility and exceptional integration are highly necessary for the smart power sources-unitized electronics.Despite the great pro-gress,the fabrication of MSCs combining high integration with high volumetric performance remains lar-gely unsolved.Herein,we develop a simple,fast and scalable strategy to fabricate graphene based highly integrated MSCs by a new effective continuous centrifugal coating technique.Notably,the resulting highly conductive graphene films can act as not only patterned microelectrodes but also metal-free cur-rent collectors and interconnects,endowing modular MSCs with high integrity,remarkable flexibility,tai-lored voltage and capacitance output,and outstanding performance uniformity.More importantly,the strong centrifugal force and shear force generated in continuous centrifugal coating process lead to gra-phene films with high alignment,compactness and packing density,contributing to excellent volumetric capacitance of~31.8 F cm-3 and volumetric energy density of~2.8 mWh cm-3,exceeding most reported integrated MSCs.Therefore,our work paves a novel way for simple and scalable fabrication of integrated MSCs and offers promising opportunities as standalone microscale power sources for new-generation electronics.
其他文献
党的十七大提出建设生态文明的理念和要求,海南作为全国第一个"生态省",在国家新形势和新要求下,将在生态文明的基础上,进一步对生态省建设延续、丰富和深化.本文通过阐述生
在中国乃至全球环境压力日益加剧的背景下,发展循环经济、建设环境友好型的可持续发展的社会就成了历史性的任务.由于政府绿色采购可带来强大的经济和社会效果,以法律的方式
摘 要:任何学科如想达到预期的教学效果,关键在于教学是否能够激发学生学习兴趣。而英语作为语言学科,对于身处非英语环境的中国学生来说,由于受到一系列因素的制约,学生普遍学习兴趣较低。鉴于此,为了达到激发学生学习兴趣,提升教学效果的目标,高中英语兴趣教学法的采用就显得尤为必要。  关键词:高中英语;兴趣教学法;课堂教学;学习兴趣  一、前言  在高中英语教学的过程中,我们经常会遇到这样的情况,老师问学
VSAT网络用于超级市场数据通信美国太平洋和大西洋茶叶公司A&P为了能在联号超市竟争中显示出本身的优势,为用户提供优良业务,通过采用VSAT技木,实现了这一目的。A&P公司为了改进用户业务,于1992年化
请下载后查看,本文暂不支持在线获取查看简介。 Please download to view, this article does not support online access to view profile.
期刊
蜂窝区通信系统的场强估算"EstimationFieldStrengthforCellularCommunicationsSystems".Konnichiwa,Summer¥YojiKishi(金健青译,吴庆翔校)在设计蜂窝区通信系统的信道时,能够... Estimation Field Strength for Cellular Communications Systems. Konnichiwa, Summer
In this study,we first attempted to discover the optimal configuration of membrane-electrode assemblies(MEAs)used to achieve a high performance of direct hydraz
FM-30B是美国BE公司生产的广播调频发射机,它的若干特点值得我们借鉴。 一、功放级 1.为适应世界市场需要,功放仍采用单只电子管。管型为8990型或4CX20000A型。丙类工作,风
铜合金金相试样的制备是比较困难的。特别是采用机械抛光法制备硬度较低的紫铜及单相铜合金时,难度更大,而试样制备的质量往往关系到金相组织的正确判断,如试样抛光方法不当
This paper demonstrates the design and fabrication of three-dimensional(3D)hexagonally ordered mi-crobowl arrays(MBAs)decorated with CuInS2 nanosheets for enhan