Enhancing the energy storage capacity of graphene supercapacitors via solar heating

doi:10.1039/d1ta09222g

	Enhancing the energy storage capacity of graphene supercapacitors via solar heating
	Yu, Xinling 2,4; Li, Nian 2,4; Zhang, Shudong 2,4; Liu, Cui 2,4; Chen, Liqing 2,3,4; Xi, Min 2,4; Song, Yanping 2,3,4; Ali, Sarmad 2,4; Iqbal, Obaid 2,4; Han, Mingyong 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2021-12-21
ISSN号	2050-7488
DOI	10.1039/d1ta09222g
通讯作者	Wang, Zhenyang(zywang@iim.ac.cn)
英文摘要	Enhancing the energy storage capacity of supercapacitors is facing great challenges. Converting solar energy into heat energy has emerged as a promising strategy to enhance the capacity of energy storage devices by elevating their working temperature, especially under low-temperature conditions. Unlike traditional energy storage devices, higher requirements are put forward for the cycle stability of solar thermal device electrodes. Herein, a novel light-absorbing structure of supercapacitor electrodes composed of 3D porous graphene and polypyrrole is established. The uniform composite structure and matching thermal expansion properties of the composite electrode endows the fabricated solar-thermal micro-supercapacitor (ST-MSC) with superior capacitance and cycling stability. Under one solar irradiation, the temperature of the ST-MSC increases to 60 degrees C, leading to a 4.8-fold increase in the specific capacitance and energy density (up to 2754 mF cm(-2) and 646.6 mu W h cm(-2), respectively); the ST-MSC exhibits excellent cycle stability with 85.8% capacitance retention after 10 000 cycles, which is much better than most of the reported ST-MSCs. Moreover, at a low temperature of -30 degrees C, the severely attenuated capacitance performance of the ST-MSC is greatly improved under one solar irradiation to a level close to that at room temperature. This work provides a new strategy for designing solar thermal electrodes and their derived high-performance energy storage devices.
资助项目	National Key Research and Development Project[2020YFA0210703] ; National Natural Science Foundation of China[U2032159] ; National Natural Science Foundation of China[U2032158] ; National Natural Science Foundation of China[62005292] ; Major Scientific and Technological Special Project of Anhui Province[202103a05020192] ; Key Research and Development Program of Anhui Province[202104a05020036] ; Science and Technology Service Network Initiative of Chinese Academy of China[KFJ-STS-ZDTP-080] ; Collaborative Innovation Program of Hefei Science Center, CAS[2020HSC-CIP003] ; CASHIPS Director's Fund[YZJJZX202015] ; Technological Innovation Projects of Shandong Province[2019JZZY020243]
WOS关键词	SOLID-STATE SUPERCAPACITORS ; CONVERSION EFFICIENCY ; PHOTOTHERMAL ABLATION ; ELECTRODE MATERIAL ; POLYPYRROLE ; PERFORMANCE ; TEMPERATURE ; COMPOSITE ; NANOSTRUCTURES ; DESIGN
WOS研究方向	Chemistry ; Energy & Fuels ; Materials Science
语种	英语
出版者	ROYAL SOC CHEMISTRY
WOS记录号	WOS:000741537700001
资助机构	National Key Research and Development Project ; National Natural Science Foundation of China ; Major Scientific and Technological Special Project of Anhui Province ; Key Research and Development Program of Anhui Province ; Science and Technology Service Network Initiative of Chinese Academy of China ; Collaborative Innovation Program of Hefei Science Center, CAS ; CASHIPS Director's Fund ; Technological Innovation Projects of Shandong Province
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/127121]
专题	中国科学院合肥物质科学研究院
通讯作者	Wang, Zhenyang
作者单位	1.Tianjin Univ, Inst Mol Plus, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 3.Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China 4.Chinese Acad Sci, Inst Solid State Phys, Hefei 230031, Anhui, Peoples R China
推荐引用方式 GB/T 7714	Yu, Xinling,Li, Nian,Zhang, Shudong,et al. Enhancing the energy storage capacity of graphene supercapacitors via solar heating[J]. JOURNAL OF MATERIALS CHEMISTRY A,2021.
APA	Yu, Xinling.,Li, Nian.,Zhang, Shudong.,Liu, Cui.,Chen, Liqing.,...&Wang, Zhenyang.(2021).Enhancing the energy storage capacity of graphene supercapacitors via solar heating.JOURNAL OF MATERIALS CHEMISTRY A.
MLA	Yu, Xinling,et al."Enhancing the energy storage capacity of graphene supercapacitors via solar heating".JOURNAL OF MATERIALS CHEMISTRY A (2021).