Cargando…
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...
Autores principales: | , , , , , |
---|---|
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 |
_version_ | 1783553370228785152 |
---|---|
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. |
format | Online Article Text |
id | pubmed-7331633 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
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 |
work_keys_str_mv | AT panjatandra fabricationofhighperformancedualcarbonliionhybridcapacitormassbalancingapproachtoimprovetheenergypowerdensityandcyclelife AT ajuriajon fabricationofhighperformancedualcarbonliionhybridcapacitormassbalancingapproachtoimprovetheenergypowerdensityandcyclelife AT dieznoel fabricationofhighperformancedualcarbonliionhybridcapacitormassbalancingapproachtoimprovetheenergypowerdensityandcyclelife AT bhattacharjyadhrubajyoti fabricationofhighperformancedualcarbonliionhybridcapacitormassbalancingapproachtoimprovetheenergypowerdensityandcyclelife AT goikoleaeider fabricationofhighperformancedualcarbonliionhybridcapacitormassbalancingapproachtoimprovetheenergypowerdensityandcyclelife AT carriazodaniel fabricationofhighperformancedualcarbonliionhybridcapacitormassbalancingapproachtoimprovetheenergypowerdensityandcyclelife |