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Insights into Enhanced Capacitive Behavior of Carbon Cathode for Lithium Ion Capacitors: The Coupling of Pore Size and Graphitization Engineering

The lack of methods to modulate intrinsic textures of carbon cathode has seriously hindered the revelation of in-depth relationship between inherent natures and capacitive behaviors, limiting the advancement of lithium ion capacitors (LICs). Here, an orientated-designed pore size distribution (range...

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Autores principales: Zou, Kangyu, Cai, Peng, Wang, Baowei, Liu, Cheng, Li, Jiayang, Qiu, Tianyun, Zou, Guoqiang, Hou, Hongshuai, Ji, Xiaobo
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Springer Singapore 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770892/
https://www.ncbi.nlm.nih.gov/pubmed/34138143
http://dx.doi.org/10.1007/s40820-020-00458-6
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author Zou, Kangyu
Cai, Peng
Wang, Baowei
Liu, Cheng
Li, Jiayang
Qiu, Tianyun
Zou, Guoqiang
Hou, Hongshuai
Ji, Xiaobo
author_facet Zou, Kangyu
Cai, Peng
Wang, Baowei
Liu, Cheng
Li, Jiayang
Qiu, Tianyun
Zou, Guoqiang
Hou, Hongshuai
Ji, Xiaobo
author_sort Zou, Kangyu
collection PubMed
description The lack of methods to modulate intrinsic textures of carbon cathode has seriously hindered the revelation of in-depth relationship between inherent natures and capacitive behaviors, limiting the advancement of lithium ion capacitors (LICs). Here, an orientated-designed pore size distribution (range from 0.5 to 200 nm) and graphitization engineering strategy of carbon materials through regulating molar ratios of Zn/Co ions has been proposed, which provides an effective platform to deeply evaluate the capacitive behaviors of carbon cathode. Significantly, after the systematical analysis cooperating with experimental result and density functional theory calculation, it is uncovered that the size of solvated PF(6)(−) ion is about 1.5 nm. Moreover, the capacitive behaviors of carbon cathode could be enhanced attributed to the controlled pore size of 1.5–3 nm. Triggered with synergistic effect of graphitization and appropriate pore size distribution, optimized carbon cathode (Zn(90)Co(10)-APC) displays excellent capacitive performances with a reversible specific capacity of ~ 50 mAh g(−1) at a current density of 5 A g(−1). Furthermore, the assembly pre-lithiated graphite (PLG)//Zn(90)Co(10)-APC LIC could deliver a large energy density of 108 Wh kg(−1) and a high power density of 150,000 W kg(−1) as well as excellent long-term ability with 10,000 cycles. This elaborate work might shed light on the intensive understanding of the improved capacitive behavior in LiPF(6) electrolyte and provide a feasible principle for elaborate fabrication of carbon cathodes for LIC systems. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00458-6) contains supplementary material, which is available to authorized users.
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spelling pubmed-77708922021-06-14 Insights into Enhanced Capacitive Behavior of Carbon Cathode for Lithium Ion Capacitors: The Coupling of Pore Size and Graphitization Engineering Zou, Kangyu Cai, Peng Wang, Baowei Liu, Cheng Li, Jiayang Qiu, Tianyun Zou, Guoqiang Hou, Hongshuai Ji, Xiaobo Nanomicro Lett Article The lack of methods to modulate intrinsic textures of carbon cathode has seriously hindered the revelation of in-depth relationship between inherent natures and capacitive behaviors, limiting the advancement of lithium ion capacitors (LICs). Here, an orientated-designed pore size distribution (range from 0.5 to 200 nm) and graphitization engineering strategy of carbon materials through regulating molar ratios of Zn/Co ions has been proposed, which provides an effective platform to deeply evaluate the capacitive behaviors of carbon cathode. Significantly, after the systematical analysis cooperating with experimental result and density functional theory calculation, it is uncovered that the size of solvated PF(6)(−) ion is about 1.5 nm. Moreover, the capacitive behaviors of carbon cathode could be enhanced attributed to the controlled pore size of 1.5–3 nm. Triggered with synergistic effect of graphitization and appropriate pore size distribution, optimized carbon cathode (Zn(90)Co(10)-APC) displays excellent capacitive performances with a reversible specific capacity of ~ 50 mAh g(−1) at a current density of 5 A g(−1). Furthermore, the assembly pre-lithiated graphite (PLG)//Zn(90)Co(10)-APC LIC could deliver a large energy density of 108 Wh kg(−1) and a high power density of 150,000 W kg(−1) as well as excellent long-term ability with 10,000 cycles. This elaborate work might shed light on the intensive understanding of the improved capacitive behavior in LiPF(6) electrolyte and provide a feasible principle for elaborate fabrication of carbon cathodes for LIC systems. [Image: see text] ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40820-020-00458-6) contains supplementary material, which is available to authorized users. Springer Singapore 2020-06-06 /pmc/articles/PMC7770892/ /pubmed/34138143 http://dx.doi.org/10.1007/s40820-020-00458-6 Text en © The Author(s) 2020 Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Zou, Kangyu
Cai, Peng
Wang, Baowei
Liu, Cheng
Li, Jiayang
Qiu, Tianyun
Zou, Guoqiang
Hou, Hongshuai
Ji, Xiaobo
Insights into Enhanced Capacitive Behavior of Carbon Cathode for Lithium Ion Capacitors: The Coupling of Pore Size and Graphitization Engineering
title Insights into Enhanced Capacitive Behavior of Carbon Cathode for Lithium Ion Capacitors: The Coupling of Pore Size and Graphitization Engineering
title_full Insights into Enhanced Capacitive Behavior of Carbon Cathode for Lithium Ion Capacitors: The Coupling of Pore Size and Graphitization Engineering
title_fullStr Insights into Enhanced Capacitive Behavior of Carbon Cathode for Lithium Ion Capacitors: The Coupling of Pore Size and Graphitization Engineering
title_full_unstemmed Insights into Enhanced Capacitive Behavior of Carbon Cathode for Lithium Ion Capacitors: The Coupling of Pore Size and Graphitization Engineering
title_short Insights into Enhanced Capacitive Behavior of Carbon Cathode for Lithium Ion Capacitors: The Coupling of Pore Size and Graphitization Engineering
title_sort insights into enhanced capacitive behavior of carbon cathode for lithium ion capacitors: the coupling of pore size and graphitization engineering
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7770892/
https://www.ncbi.nlm.nih.gov/pubmed/34138143
http://dx.doi.org/10.1007/s40820-020-00458-6
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