Stress-assisted design of stiffened graphene electrode structure toward compact energy storage | |
| Wang, Yuzuo1,2,3,4; Chen, Jing2; Qin, Huasong5; Chen, Ke2; Li, Zhuangnan6; Chen, Yan5; Li, Juan2,7; Hu, Tianzhao2,8; Chen, Shaorui2; Qiao, Zhijun4; Ruan, Dianbo1,4; Yang, Quanhong3; Liu, Yilun5; Li, Feng2 | |
| Corresponding Author | Ruan, Dianbo(ruandianbo@nbu.edu.cn) ; Liu, Yilun(yilunliu@mail.xjtu.edu.cn) ; Li, Feng(fli@imr.ac.cn) |
| 2022-08-01 | |
| Source Publication | JOURNAL OF ENERGY CHEMISTRY
 |
| ISSN | 2095-4956 |
| Volume | 71Pages:478-487 |
| Abstract | 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)& nbsp;2022 Science Press and Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by ELSEVIER B.V. and Science Press. All rights reserved. |
| Keyword | Supercapacitor Activated graphene Bending rigidity Volumetric capacitance Pore structure |
| Funding Organization | 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 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Chemistry ; Energy & Fuels ; Engineering |
| WOS Subject | Chemistry, Applied ; Chemistry, Physical ; Energy & Fuels ; Engineering, Chemical |
| WOS ID | WOS:000798209300001 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/174132 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Ruan, Dianbo; Liu, Yilun; Li, Feng |
| Affiliation | 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, Xi'an 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 |
| Recommended Citation 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. |
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