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Fabrication of high-performance dual carbon Li-ion hybrid capacitor: mass balancing approach to improve the energy-power density and cycle life

Most lithium-ion capacitor (LIC) devices include graphite or non-porous hard carbon as negative electrode often failing when demanding high energy at high power densities. Herein, we introduce a new LIC formed by the assembly of polymer derived hollow carbon spheres (HCS) and a superactivated carbon...

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Autores principales: Panja, Tandra, Ajuria, Jon, Díez, Noel, Bhattacharjya, Dhrubajyoti, Goikolea, Eider, Carriazo, Daniel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7331633/
https://www.ncbi.nlm.nih.gov/pubmed/32616733
http://dx.doi.org/10.1038/s41598-020-67216-x
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author Panja, Tandra
Ajuria, Jon
Díez, Noel
Bhattacharjya, Dhrubajyoti
Goikolea, Eider
Carriazo, Daniel
author_facet Panja, Tandra
Ajuria, Jon
Díez, Noel
Bhattacharjya, Dhrubajyoti
Goikolea, Eider
Carriazo, Daniel
author_sort Panja, Tandra
collection PubMed
description Most lithium-ion capacitor (LIC) devices include graphite or non-porous hard carbon as negative electrode often failing when demanding high energy at high power densities. Herein, we introduce a new LIC formed by the assembly of polymer derived hollow carbon spheres (HCS) and a superactivated carbon (AC), as negative and positive electrodes, respectively. The hollow microstructure of HCS and the ultra large specific surface area of AC maximize lithium insertion/diffusion and ions adsorption in each of the electrodes, leading to individual remarkable capacity values and rate performances. To optimize the performance of the LIC not only in terms of energy and power densities but also from a stability point of view, a rigorous mass balance study is also performed. Optimized LIC, using a 2:1 negative to positive electrode mass ratio, shows very good reversibility within the operative voltage region of 1.5–4.2 V and it is able to deliver a specific cell capacity of 28 mA h(−1) even at a high current density of 10 A g(−1). This leads to an energy density of 68 W h kg(−1) at an extreme power density of 30 kW kg(−1). Moreover, this LIC device shows an outstanding cyclability, retaining more than 92% of the initial capacity after 35,000 charge–discharge cycles.
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spelling pubmed-73316332020-07-06 Fabrication of high-performance dual carbon Li-ion hybrid capacitor: mass balancing approach to improve the energy-power density and cycle life Panja, Tandra Ajuria, Jon Díez, Noel Bhattacharjya, Dhrubajyoti Goikolea, Eider Carriazo, Daniel Sci Rep Article Most lithium-ion capacitor (LIC) devices include graphite or non-porous hard carbon as negative electrode often failing when demanding high energy at high power densities. Herein, we introduce a new LIC formed by the assembly of polymer derived hollow carbon spheres (HCS) and a superactivated carbon (AC), as negative and positive electrodes, respectively. The hollow microstructure of HCS and the ultra large specific surface area of AC maximize lithium insertion/diffusion and ions adsorption in each of the electrodes, leading to individual remarkable capacity values and rate performances. To optimize the performance of the LIC not only in terms of energy and power densities but also from a stability point of view, a rigorous mass balance study is also performed. Optimized LIC, using a 2:1 negative to positive electrode mass ratio, shows very good reversibility within the operative voltage region of 1.5–4.2 V and it is able to deliver a specific cell capacity of 28 mA h(−1) even at a high current density of 10 A g(−1). This leads to an energy density of 68 W h kg(−1) at an extreme power density of 30 kW kg(−1). Moreover, this LIC device shows an outstanding cyclability, retaining more than 92% of the initial capacity after 35,000 charge–discharge cycles. Nature Publishing Group UK 2020-07-02 /pmc/articles/PMC7331633/ /pubmed/32616733 http://dx.doi.org/10.1038/s41598-020-67216-x Text en © The Author(s) 2020 Open Access This 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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 license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Panja, Tandra
Ajuria, Jon
Díez, Noel
Bhattacharjya, Dhrubajyoti
Goikolea, Eider
Carriazo, Daniel
Fabrication of high-performance dual carbon Li-ion hybrid capacitor: mass balancing approach to improve the energy-power density and cycle life
title Fabrication of high-performance dual carbon Li-ion hybrid capacitor: mass balancing approach to improve the energy-power density and cycle life
title_full Fabrication of high-performance dual carbon Li-ion hybrid capacitor: mass balancing approach to improve the energy-power density and cycle life
title_fullStr Fabrication of high-performance dual carbon Li-ion hybrid capacitor: mass balancing approach to improve the energy-power density and cycle life
title_full_unstemmed Fabrication of high-performance dual carbon Li-ion hybrid capacitor: mass balancing approach to improve the energy-power density and cycle life
title_short Fabrication of high-performance dual carbon Li-ion hybrid capacitor: mass balancing approach to improve the energy-power density and cycle life
title_sort fabrication of high-performance dual carbon li-ion hybrid capacitor: mass balancing approach to improve the energy-power density and cycle life
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7331633/
https://www.ncbi.nlm.nih.gov/pubmed/32616733
http://dx.doi.org/10.1038/s41598-020-67216-x
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