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A simple formula to fabricate high performance lithium metal capacitors

Energy storage technologies that are low-cost, with long cyclability, high rate-capability as well as high energy and power densities are under intensive investigation for sustainable clean energy transition. In this paper, we report a high-performance lithium metal capacitor (LMC) achieved by a sim...

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Main Authors:	NurulHuda, Shah, Ling, JinKiong, Ghufira, ., Izan Izwan, Misnon, Wu, Yi-Shiuan, Yang, Chun-Chen, Jose, Rajan
Format:	Article
Language:	English English
Published:	Elsevier Ltd 2024
Subjects:	HD Industries. Land use. Labor
Online Access:	http://umpir.ump.edu.my/id/eprint/42952/1/A%20simple%20formula%20to%20fabricate%20high%20performance%20lithium%20metal%20capacitors%20-%20Intro.pdf http://umpir.ump.edu.my/id/eprint/42952/2/A%20simple%20formula%20to%20fabricate%20high%20performance%20lithium%20metal%20capacitors.pdf http://umpir.ump.edu.my/id/eprint/42952/ https://doi.org/10.1016/j.est.2024.114682
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spelling	my.ump.umpir.429522024-11-20T06:09:33Z http://umpir.ump.edu.my/id/eprint/42952/ A simple formula to fabricate high performance lithium metal capacitors NurulHuda, Shah Ling, JinKiong Ghufira, . Izan Izwan, Misnon Wu, Yi-Shiuan Yang, Chun-Chen Jose, Rajan HD Industries. Land use. Labor Energy storage technologies that are low-cost, with long cyclability, high rate-capability as well as high energy and power densities are under intensive investigation for sustainable clean energy transition. In this paper, we report a high-performance lithium metal capacitor (LMC) achieved by a simple slurry modification during the cathode film preparation. We show that a mere substitution of ~0.4 wt% conductive carbon by single walled carbon nanotubes (SWCNTs) increased the specific energy of LMCs by 22 %. Porous carbon cathode in this study was obtained from a non-edible biomass (coconut rachis); the optimized sample showed desirable surface characteristics (surface area ~1933 m2⸱g−1 and pore diameter ~2.0 nm) as well as high edge-plane fraction (ratio between relative density of edge and basal plane ~0.4). Cathode with no SWCNTs show a specific capacitance (CS) of ~133 F·g−1@0.1 A·g−1 in the potential window 2.0–4.0 V in the Li//LiPF6//AC device configuration. Removal of conductive carbon by SWCNTs up to ~0.6 wt% increased electrical conductivity of the cathode; however, the charge storability enhancements were only up to ~0.4 wt%. The optimum device delivered a CS ~188 F·g−1@100 mA·g−1 in the potential window 2.0–4.0 V with improved rate capability and cycling stability. Electrochemical impedance spectroscopy was used as a tool to understand the charge kinetics at the electrode; these studies collectively validated the observed enhancements in the charge storability. The device hereby developed showed superior specific capacity than most of the reported lithium-ion capacitors and comparable to some of the LMBs. The perceived 22 % increase in the specific energy by a mere 0.4 wt% SWCNT substitution is a step forward in fabricating the high-performance LMCs in addition to support the sustainability agenda through the carbon-negative precursors. Elsevier Ltd 2024 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/42952/1/A%20simple%20formula%20to%20fabricate%20high%20performance%20lithium%20metal%20capacitors%20-%20Intro.pdf pdf en http://umpir.ump.edu.my/id/eprint/42952/2/A%20simple%20formula%20to%20fabricate%20high%20performance%20lithium%20metal%20capacitors.pdf NurulHuda, Shah and Ling, JinKiong and Ghufira, . and Izan Izwan, Misnon and Wu, Yi-Shiuan and Yang, Chun-Chen and Jose, Rajan (2024) A simple formula to fabricate high performance lithium metal capacitors. Journal of Energy Storage, 105 (114682). pp. 1-12. ISSN 2352-152X. (Published) https://doi.org/10.1016/j.est.2024.114682 10.1016/j.est.2024.114682
institution	Universiti Malaysia Pahang Al-Sultan Abdullah
building	UMPSA Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Pahang Al-Sultan Abdullah
content_source	UMPSA Institutional Repository
url_provider	http://umpir.ump.edu.my/
language	English English
topic	HD Industries. Land use. Labor
spellingShingle	HD Industries. Land use. Labor NurulHuda, Shah Ling, JinKiong Ghufira, . Izan Izwan, Misnon Wu, Yi-Shiuan Yang, Chun-Chen Jose, Rajan A simple formula to fabricate high performance lithium metal capacitors
description	Energy storage technologies that are low-cost, with long cyclability, high rate-capability as well as high energy and power densities are under intensive investigation for sustainable clean energy transition. In this paper, we report a high-performance lithium metal capacitor (LMC) achieved by a simple slurry modification during the cathode film preparation. We show that a mere substitution of ~0.4 wt% conductive carbon by single walled carbon nanotubes (SWCNTs) increased the specific energy of LMCs by 22 %. Porous carbon cathode in this study was obtained from a non-edible biomass (coconut rachis); the optimized sample showed desirable surface characteristics (surface area ~1933 m2⸱g−1 and pore diameter ~2.0 nm) as well as high edge-plane fraction (ratio between relative density of edge and basal plane ~0.4). Cathode with no SWCNTs show a specific capacitance (CS) of ~133 F·g−1@0.1 A·g−1 in the potential window 2.0–4.0 V in the Li//LiPF6//AC device configuration. Removal of conductive carbon by SWCNTs up to ~0.6 wt% increased electrical conductivity of the cathode; however, the charge storability enhancements were only up to ~0.4 wt%. The optimum device delivered a CS ~188 F·g−1@100 mA·g−1 in the potential window 2.0–4.0 V with improved rate capability and cycling stability. Electrochemical impedance spectroscopy was used as a tool to understand the charge kinetics at the electrode; these studies collectively validated the observed enhancements in the charge storability. The device hereby developed showed superior specific capacity than most of the reported lithium-ion capacitors and comparable to some of the LMBs. The perceived 22 % increase in the specific energy by a mere 0.4 wt% SWCNT substitution is a step forward in fabricating the high-performance LMCs in addition to support the sustainability agenda through the carbon-negative precursors.
format	Article
author	NurulHuda, Shah Ling, JinKiong Ghufira, . Izan Izwan, Misnon Wu, Yi-Shiuan Yang, Chun-Chen Jose, Rajan
author_facet	NurulHuda, Shah Ling, JinKiong Ghufira, . Izan Izwan, Misnon Wu, Yi-Shiuan Yang, Chun-Chen Jose, Rajan
author_sort	NurulHuda, Shah
title	A simple formula to fabricate high performance lithium metal capacitors
title_short	A simple formula to fabricate high performance lithium metal capacitors
title_full	A simple formula to fabricate high performance lithium metal capacitors
title_fullStr	A simple formula to fabricate high performance lithium metal capacitors
title_full_unstemmed	A simple formula to fabricate high performance lithium metal capacitors
title_sort	simple formula to fabricate high performance lithium metal capacitors
publisher	Elsevier Ltd
publishDate	2024
url	http://umpir.ump.edu.my/id/eprint/42952/1/A%20simple%20formula%20to%20fabricate%20high%20performance%20lithium%20metal%20capacitors%20-%20Intro.pdf http://umpir.ump.edu.my/id/eprint/42952/2/A%20simple%20formula%20to%20fabricate%20high%20performance%20lithium%20metal%20capacitors.pdf http://umpir.ump.edu.my/id/eprint/42952/ https://doi.org/10.1016/j.est.2024.114682
_version_	1822924751416328192
score	13.235362

A simple formula to fabricate high performance lithium metal capacitors

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