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Ultralow-resistance electrochemical capacitor for integrable line filtering

文献类型：期刊论文

作者Hu, Yajie4,5; Wu, Mingmao3; Chi, Fengyao4,5; Lai, Guobin2,3; Li, Puying4,5; He, Wenya4,5; Lu, Bing4,5; Weng, Chuanxin4,5; Lin, Jinguo2; Chen, Fengen4,5
刊名NATURE
出版日期2023-11-15
页码19
ISSN号0028-0836
DOI10.1038/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.
WOS关键词TOTAL-ENERGY CALCULATIONS ; HIGH-PERFORMANCE ; SUPERCAPACITORS ; FILMS ; ELECTRODE ; FABRICATION
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
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
通讯作者Qu, Liangti
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.,Lai, Guobin.,Li, Puying.,...&林金国.(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.

入库方式： OAI收割

来源：力学研究所

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