Cargando…

Tuning the Mechanical and Electrical Properties of Porous Electrodes for Architecting 3D Microsupercapacitors with Batteries‐Level Energy

Microsupercapacitors (MSCs) are vital power sources for internet of things (IoTs) and miniaturized electronics. The performance of MSCs is often restricted by its low areal energy density, which is due to the low areal mass loading of active materials. Constructing thick planar microelectrode with f...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Congming, Li, Xiangming, Yang, Qingzhen, Sun, Pengcheng, Wu, Lifeng, Nie, Bangbang, Tian, Hongmiao, Wang, Yingche, Wang, Chunhui, Chen, Xiaoliang, Shao, Jinyou
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley and Sons Inc. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8336509/
https://www.ncbi.nlm.nih.gov/pubmed/34151539
http://dx.doi.org/10.1002/advs.202004957
_version_ 1783733334234365952
author Li, Congming
Li, Xiangming
Yang, Qingzhen
Sun, Pengcheng
Wu, Lifeng
Nie, Bangbang
Tian, Hongmiao
Wang, Yingche
Wang, Chunhui
Chen, Xiaoliang
Shao, Jinyou
author_facet Li, Congming
Li, Xiangming
Yang, Qingzhen
Sun, Pengcheng
Wu, Lifeng
Nie, Bangbang
Tian, Hongmiao
Wang, Yingche
Wang, Chunhui
Chen, Xiaoliang
Shao, Jinyou
author_sort Li, Congming
collection PubMed
description Microsupercapacitors (MSCs) are vital power sources for internet of things (IoTs) and miniaturized electronics. The performance of MSCs is often restricted by its low areal energy density, which is due to the low areal mass loading of active materials. Constructing thick planar microelectrode with fine structure and high aspect ratio is an efficient way to increase mass loading, but limited by the breakable nature of porous electrode materials. Here, it is found that the mechanical and electrical properties of porous electrodes, as well as their surface area utilization and internal ion diffusion pathway, can be synergistically tuned by infilling gel electrolyte into internal pores of porous electrode films. The tuned thick porous electrode films are robust enough to enable laser ablation of three dimensional (3D) microelectrodes for high mass loading and high aspect ratio. The areal capacitance of 3D microelectrodes is able to increase linearly with mass loading (or thickness) up to at least 13 mg cm(−2) (or 260 µm) for a value of up to 4640 mF cm(−2) based on active carbon. The 3D MSCs deliver areal energy density of 1318 μWh cm(−2), which is comparable to the best of Li‐ion 3D microbatteries while exhibiting superior electrochemical and mechanical stability.
format Online
Article
Text
id pubmed-8336509
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher John Wiley and Sons Inc.
record_format MEDLINE/PubMed
spelling pubmed-83365092021-08-09 Tuning the Mechanical and Electrical Properties of Porous Electrodes for Architecting 3D Microsupercapacitors with Batteries‐Level Energy Li, Congming Li, Xiangming Yang, Qingzhen Sun, Pengcheng Wu, Lifeng Nie, Bangbang Tian, Hongmiao Wang, Yingche Wang, Chunhui Chen, Xiaoliang Shao, Jinyou Adv Sci (Weinh) Research Articles Microsupercapacitors (MSCs) are vital power sources for internet of things (IoTs) and miniaturized electronics. The performance of MSCs is often restricted by its low areal energy density, which is due to the low areal mass loading of active materials. Constructing thick planar microelectrode with fine structure and high aspect ratio is an efficient way to increase mass loading, but limited by the breakable nature of porous electrode materials. Here, it is found that the mechanical and electrical properties of porous electrodes, as well as their surface area utilization and internal ion diffusion pathway, can be synergistically tuned by infilling gel electrolyte into internal pores of porous electrode films. The tuned thick porous electrode films are robust enough to enable laser ablation of three dimensional (3D) microelectrodes for high mass loading and high aspect ratio. The areal capacitance of 3D microelectrodes is able to increase linearly with mass loading (or thickness) up to at least 13 mg cm(−2) (or 260 µm) for a value of up to 4640 mF cm(−2) based on active carbon. The 3D MSCs deliver areal energy density of 1318 μWh cm(−2), which is comparable to the best of Li‐ion 3D microbatteries while exhibiting superior electrochemical and mechanical stability. John Wiley and Sons Inc. 2021-06-20 /pmc/articles/PMC8336509/ /pubmed/34151539 http://dx.doi.org/10.1002/advs.202004957 Text en © 2021 The Authors. Advanced Science published by Wiley‐VCH GmbH https://creativecommons.org/licenses/by/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Li, Congming
Li, Xiangming
Yang, Qingzhen
Sun, Pengcheng
Wu, Lifeng
Nie, Bangbang
Tian, Hongmiao
Wang, Yingche
Wang, Chunhui
Chen, Xiaoliang
Shao, Jinyou
Tuning the Mechanical and Electrical Properties of Porous Electrodes for Architecting 3D Microsupercapacitors with Batteries‐Level Energy
title Tuning the Mechanical and Electrical Properties of Porous Electrodes for Architecting 3D Microsupercapacitors with Batteries‐Level Energy
title_full Tuning the Mechanical and Electrical Properties of Porous Electrodes for Architecting 3D Microsupercapacitors with Batteries‐Level Energy
title_fullStr Tuning the Mechanical and Electrical Properties of Porous Electrodes for Architecting 3D Microsupercapacitors with Batteries‐Level Energy
title_full_unstemmed Tuning the Mechanical and Electrical Properties of Porous Electrodes for Architecting 3D Microsupercapacitors with Batteries‐Level Energy
title_short Tuning the Mechanical and Electrical Properties of Porous Electrodes for Architecting 3D Microsupercapacitors with Batteries‐Level Energy
title_sort tuning the mechanical and electrical properties of porous electrodes for architecting 3d microsupercapacitors with batteries‐level energy
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8336509/
https://www.ncbi.nlm.nih.gov/pubmed/34151539
http://dx.doi.org/10.1002/advs.202004957
work_keys_str_mv AT licongming tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy
AT lixiangming tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy
AT yangqingzhen tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy
AT sunpengcheng tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy
AT wulifeng tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy
AT niebangbang tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy
AT tianhongmiao tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy
AT wangyingche tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy
AT wangchunhui tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy
AT chenxiaoliang tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy
AT shaojinyou tuningthemechanicalandelectricalpropertiesofporouselectrodesforarchitecting3dmicrosupercapacitorswithbatterieslevelenergy