Engineering a heteroatom-doped multidimensional carbon network for dendrite-free lithium metal anode

Tang, K; Xiao, J; Long, M; Chen, J; Gao, H; Liu, H; Wang, G

Engineering a heteroatom-doped multidimensional carbon network for dendrite-free lithium metal anode

Tang, K Xiao, J Long, M Chen, J Gao, H

Liu, H

Wang, G

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Publisher:: ELSEVIER SCI LTD
Publication Type:: Journal Article
Citation:: Materials Today Energy, 2022, 24
Issue Date:: 2022-03-01

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Field	Value	Language
dc.contributor.author	Tang, K
dc.contributor.author	Xiao, J
dc.contributor.author	Long, M
dc.contributor.author	Chen, J
dc.contributor.author	Gao, H https://orcid.org/0000-0002-4431-631X
dc.contributor.author	Liu, H https://orcid.org/0000-0003-0266-9472
dc.contributor.author	Wang, G https://orcid.org/0000-0003-4295-8578
dc.date.accessioned	2023-02-23T04:14:03Z
dc.date.available	2023-02-23T04:14:03Z
dc.date.issued	2022-03-01
dc.identifier.citation	Materials Today Energy, 2022, 24
dc.identifier.issn	2468-6069
dc.identifier.issn	2468-6069
dc.identifier.uri	http://hdl.handle.net/10453/166383
dc.description.abstract	Lithium metal anode (LMA) has attracted widespread attention on account of its highest theoretical capacity and low reduction potential. However, the practical application of LMA has been long hindered by safety concerns and huge volume change resulting from the inevitable lithium dendrites growth. Herein, a multidimensional framework consisting of commercial carbon cloth (CC) and N, S-codoped porous carbon (PNSC) net (CC@PNSC) is fabricated and applied for LMA. This CC@PNSC skeleton has a large specific surface area, and the local current density can be significantly decreased. In addition, the synergetic effect of nitrogen and sulfur codoping endows CC with enhanced lithiophilicity and even lithium plating behavior. More importantly, the in-situ formed Li3N and Li2S during the molten lithium infusion process facilitate Li+ transfer kinetics and effectively homogenize the Li+ flux diffusion. The as-prepared CC@PNSC-Li composite anode exhibits high specific capacity (3 mA h cm−2, 500 h) and impressive cycling stability with a flat voltage profile at a current density of 1 mA cm−2 (750 h). When paired with LiFePO4 (LFP), the LFP\|\|CC@PNSC-Li cell delivers an extraordinary rate capacity (especially at 5C) and a long-term cycling lifespan at 1C (600 cycles and capacity retention of 89.06%).
dc.language	English
dc.publisher	ELSEVIER SCI LTD
dc.relation	http://purl.org/au-research/grants/arc/DP180102297
dc.relation	http://purl.org/au-research/grants/arc/FT180100705
dc.relation.ispartof	Materials Today Energy
dc.relation.isbasedon	10.1016/j.mtener.2022.100949
dc.rights	info:eu-repo/semantics/closedAccess
dc.title	Engineering a heteroatom-doped multidimensional carbon network for dendrite-free lithium metal anode
dc.type	Journal Article
utslib.citation.volume	24
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - CCET - Centre for Clean Energy Technology
utslib.copyright.status	closed_access	*
dc.date.updated	2023-02-23T04:14:01Z
pubs.publication-status	Published
pubs.volume	24

Abstract:

Lithium metal anode (LMA) has attracted widespread attention on account of its highest theoretical capacity and low reduction potential. However, the practical application of LMA has been long hindered by safety concerns and huge volume change resulting from the inevitable lithium dendrites growth. Herein, a multidimensional framework consisting of commercial carbon cloth (CC) and N, S-codoped porous carbon (PNSC) net (CC@PNSC) is fabricated and applied for LMA. This CC@PNSC skeleton has a large specific surface area, and the local current density can be significantly decreased. In addition, the synergetic effect of nitrogen and sulfur codoping endows CC with enhanced lithiophilicity and even lithium plating behavior. More importantly, the in-situ formed Li3N and Li2S during the molten lithium infusion process facilitate Li+ transfer kinetics and effectively homogenize the Li+ flux diffusion. The as-prepared CC@PNSC-Li composite anode exhibits high specific capacity (3 mA h cm−2, 500 h) and impressive cycling stability with a flat voltage profile at a current density of 1 mA cm−2 (750 h). When paired with LiFePO4 (LFP), the LFP||CC@PNSC-Li cell delivers an extraordinary rate capacity (especially at 5C) and a long-term cycling lifespan at 1C (600 cycles and capacity retention of 89.06%).

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http://hdl.handle.net/10453/166383