Ultralow-resistance electrochemical capacitor for integrable line filtering

doi:10.1038/s41586-023-06712-2

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Ultralow-resistance electrochemical capacitor for integrable line filtering
	Hu, Yajie 4,5; Wu, Mingmao 3; Chi, Fengyao 4,5; Lai GB(赖国彬)2,3; Li, Puying 4,5; He, Wenya 4,5; Lu, Bing 4,5; Weng, Chuanxin 4,5; Lin JG(林金国)2; Chen, Fengen 4,5
刊名	NATURE
	2023-11-15
页码	19
ISSN号	0028-0836
DOI	10.1038/s41586-023-06712-2
通讯作者	Qu, Liangti(lqu@mail.tsinghua.edu.cn)
英文摘要	Electrochemical capacitors are expected to replace conventional electrolytic capacitors in line filtering for integrated circuits and portable electronics(1-8). However, practical implementation of electrochemical capacitors into line-filtering circuits has not yet been achieved owing to the difficulty in synergistic accomplishment of fast responses, high specific capacitance, miniaturization and circuit-compatible integration(1,4,5,9-12). Here we propose an electric-field enhancement strategy to promote frequency characteristics and capacitance simultaneously. By downscaling the channel width with femtosecond-laser scribing, a miniaturized narrow-channel in-plane electrochemical capacitor shows drastically reduced ionic resistances within both the electrode material and the electrolyte, leading to an ultralow series resistance of 39 m Omega cm(2) at 120 Hz. As a consequence, an ultrahigh areal capacitance of up to 5.2 mF cm(-2) is achieved with a phase angle of -80 degrees at 120 Hz, twice as large as one of the highest reported previously(4,13,14), and little degradation is observed over 1,000,000 cycles. Scalable integration of this electrochemical capacitor into microcircuitry shows a high integration density of 80 cells cm(-2) and on-demand customization of capacitance and voltage. In light of excellent filtering performances and circuit compatibility, this work presents an important step of line-filtering electrochemical capacitors towards practical applications in integrated circuits and flexible electronics.
分类号	一类
资助项目	National Science Foundation of China[22105040] ; National Science Foundation of China[22035005] ; National Science Foundation of China[52022051] ; National Science Foundation of China[52090032] ; National Science Foundation of China[22075165] ; National Science Foundation of China[52073159] ; State Key Laboratory of Tribology in Advanced Equipment (SKLT)[SKLT2021B03] ; Tsinghua-Foshan Innovation Special Fund[2020THFS0501] ; National Natural Science Foundation of China[11972349] ; National Natural Science Foundation of China[11790292] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503] ; Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China[2021ZZ127] ; Natural Science Foundation of Fujian Province of China[2021J01588]
WOS关键词	TOTAL-ENERGY CALCULATIONS ; HIGH-PERFORMANCE ; SUPERCAPACITORS ; FILMS ; ELECTRODE ; FABRICATION
WOS研究方向	Science & Technology - Other Topics
语种	英语
WOS记录号	WOS:001105882300004
资助机构	National Science Foundation of China ; State Key Laboratory of Tribology in Advanced Equipment (SKLT) ; Tsinghua-Foshan Innovation Special Fund ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China ; Natural Science Foundation of Fujian Province of China
其他责任者	Qu, Liangti
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/93791]
专题	力学研究所_非线性力学国家重点实验室
作者单位	1.Beijing Inst Technol, Sch Mech Engn, Laser Micro Nano Fabricat Lab, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing, Peoples R China; 3.Fuzhou Univ, Coll Mat Sci & Engn, Key Lab Ecomat Adv Technol, Fuzhou, Peoples R China; 4.Tsinghua Univ, Lab Flexible Elect Technol, Beijing, Peoples R China; 5.Tsinghua Univ, Dept Chem, Key Lab Organ Optoelect & Mol Engn, Minist Educ, Beijing, Peoples R China;
推荐引用方式 GB/T 7714	Hu, Yajie,Wu, Mingmao,Chi, Fengyao,et al. Ultralow-resistance electrochemical capacitor for integrable line filtering[J]. NATURE,2023:19.
APA	Hu, Yajie.,Wu, Mingmao.,Chi, Fengyao.,赖国彬.,Li, Puying.,...&Qu, Liangti.(2023).Ultralow-resistance electrochemical capacitor for integrable line filtering.NATURE,19.
MLA	Hu, Yajie,et al."Ultralow-resistance electrochemical capacitor for integrable line filtering".NATURE (2023):19.