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

doi:10.1016/j.jechem.2022.04.0282095-4956

IMR OpenIR

	Stress-assisted design of stiffened graphene electrode structure toward compact energy storage
	Wang, Yuzuo 1,2,3,4; Chen, Jing 2; Qin, Huasong 5; Chen, Ke 2; Li, Zhuangnan 6; Chen, Yan 5; Li, Juan 2,7; Hu, Tianzhao 2,8; Chen, Shaorui 2; Qiao, Zhijun 4; Ruan, Dianbo 1,4; Yang, Quanhong 3; Liu, Yilun 5; Li, Feng 2
通讯作者	Ruan, Dianbo(ruandianbo@nbu.edu.cn) ; Liu, Yilun(yilunliu@mail.xjtu.edu.cn) ; Li, Feng(fli@imr.ac.cn)
	2022-08-01
发表期刊	JOURNAL OF ENERGY CHEMISTRY
ISSN	2095-4956
卷号	71 页码:478-487
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.
关键词	Supercapacitor Activated graphene Bending rigidity Volumetric capacitance Pore structure
资助者	National Natural Science Foundation of China ; Major Special Projects of the Plan ? ; Science and Technology Innovation
DOI	10.1016/j.jechem.2022.04.0282095-4956
收录类别	SCI
语种	英语
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
WOS类目	Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical
WOS记录号	WOS:000798209300001
出版者	ELSEVIER
引用统计	被引频次：10[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/174459
专题	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.Ningbo Univ, Inst Adv Energy Storage Technol & Equipment, Ningbo 315211, Zhejiang, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Liaoning, Peoples R China 3.Tianjin Univ, Sch Chem Engn & Technol, State Key Lab Chem Engn, Tianjin 300350, Peoples R China 4.Ningbo CRRC New Energy Technol Co Ltd, Ningbo 315112, Zhejiang, Peoples R China 5.Xi An Jiao Tong Univ, Sch Aerosp, Lab Multiscale Mech & Med Sci, Xian 710049, Shaanxi, Peoples R China 6.Univ Cambridge, Dept Mat Sci & Met, Cambridge CB3 0FS, England 7.Jilin Univ, Coll Phys, Key Lab Phys & Technol Adv Batteries, Minist Educ, Changchun 130012, Jilin, Peoples R China 8.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Henan, 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.