Stress-assisted design of stiffened graphene electrode structure toward compact energy storage

doi:10.1016/j.jechem.2022.04.0282095-4956

CORC > 金属研究所 > 中国科学院金属研究所

	Stress-assisted design of stiffened graphene electrode structure toward compact energy storage
	Wang, Yuzuo 5,6,7,8; Chen, Jing 7; Qin, Huasong 4; Chen, Ke 7; Li, Zhuangnan 3; Chen, Yan 4; Li, Juan 2,7; Hu, Tianzhao 1,7; Chen, Shaorui 7; Qiao, Zhijun 5
刊名	JOURNAL OF ENERGY CHEMISTRY
	2022-08-01
卷号	71 页码:478-487
关键词	Supercapacitor Activated graphene Bending rigidity Volumetric capacitance Pore structure
ISSN号	2095-4956
DOI	10.1016/j.jechem.2022.04.0282095-4956
通讯作者	Ruan, Dianbo(ruandianbo@nbu.edu.cn) ; Liu, Yilun(yilunliu@mail.xjtu.edu.cn) ; Li, Feng(fli@imr.ac.cn)
英文摘要	The low spatial charge-storage density of porous carbons greatly limits volumetric performance in electrochemical capacitors. An increase of charge-storage density requires structural refinements to balance the trade-offs between the porosity and density of materials, but the limited mechanical properties of carbons usually fail to withstand effective densifying processes and obtain an ideal pore structure. Herein, we design the stiffened graphene of superior bending rigidity, enabling the fine adjustments of pore structure to maximize the volumetric capacitance for the graphene-based electrodes. The in plane crumples on graphene sheets are found to contribute largely to the bending rigidity, which is useful to control the structural evolution and maintain sufficient ion-accessible surface area during the assembling process. This makes the capacitance of stiffening activated graphene keep 98% when the electrode density increases by 769% to reach 1.13 g.cm(-3) after mechanical pressure, an excellent volumetric energy density of 98.7 Wh.L-1 in an ionic-liquid electrolyte is achieved. Our results demonstrate the role of intrinsic material properties on the performance of carbon-based electrodes for capacitive energy storage. (c) 2022 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved.
资助项目	National Natural Science Foundation of China[22078164] ; National Natural Science Foundation of China[22079164] ; Major Special Projects of the Plan ?[2025?] ; Major Special Projects of the Plan ?[2019B10045] ; Science and Technology Innovation
WOS研究方向	Chemistry ; Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000798209300001
资助机构	National Natural Science Foundation of China ; Major Special Projects of the Plan ? ; Science and Technology Innovation
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/174458]
专题	金属研究所_中国科学院金属研究所
通讯作者	Ruan, Dianbo; Liu, Yilun; Li, Feng
作者单位	1.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Henan, Peoples R China 2.Jilin Univ, Coll Phys, Key Lab Phys & Technol Adv Batteries, Minist Educ, Changchun 130012, Jilin, Peoples R China 3.Univ Cambridge, Dept Mat Sci & Met, Cambridge CB3 0FS, England 4.Xi An Jiao Tong Univ, Sch Aerosp, Lab Multiscale Mech & Med Sci, Xian 710049, Shaanxi, Peoples R China 5.Ningbo CRRC New Energy Technol Co Ltd, Ningbo 315112, Zhejiang, Peoples R China 6.Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Tianjin 300350, Peoples R China 7.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 8.Ningbo Univ, Inst Adv Energy Storage Technol & Equipment, Ningbo 315211, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yuzuo,Chen, Jing,Qin, Huasong,et al. Stress-assisted design of stiffened graphene electrode structure toward compact energy storage[J]. JOURNAL OF ENERGY CHEMISTRY,2022,71:478-487.
APA	Wang, Yuzuo.,Chen, Jing.,Qin, Huasong.,Chen, Ke.,Li, Zhuangnan.,...&Li, Feng.(2022).Stress-assisted design of stiffened graphene electrode structure toward compact energy storage.JOURNAL OF ENERGY CHEMISTRY,71,478-487.
MLA	Wang, Yuzuo,et al."Stress-assisted design of stiffened graphene electrode structure toward compact energy storage".JOURNAL OF ENERGY CHEMISTRY 71(2022):478-487.