A novel design of 3D carbon host for stable lithium metal anode

Abstract Rational design of porous conductive hosts with high electrical conductivity, large surface area, and adequate interior space is desirable to suppressing dendritic lithium growth and accommodating large volume change of lithium metal anode during the Li plating/stripping process. However, d...

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Main Authors: Hang Liu, Jie Di, Ping Wang, Rui Gao, Han Tian, Pengfei Ren, Qingxi Yuan, Wanxia Huang, Ruiping Liu, Qiang Liu, Ming Feng
Format: Article
Language:English
Published: Wiley 2022-07-01
Series:Carbon Energy
Subjects:
Online Access:https://doi.org/10.1002/cey2.193
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author Hang Liu
Jie Di
Ping Wang
Rui Gao
Han Tian
Pengfei Ren
Qingxi Yuan
Wanxia Huang
Ruiping Liu
Qiang Liu
Ming Feng
author_facet Hang Liu
Jie Di
Ping Wang
Rui Gao
Han Tian
Pengfei Ren
Qingxi Yuan
Wanxia Huang
Ruiping Liu
Qiang Liu
Ming Feng
author_sort Hang Liu
collection DOAJ
description Abstract Rational design of porous conductive hosts with high electrical conductivity, large surface area, and adequate interior space is desirable to suppressing dendritic lithium growth and accommodating large volume change of lithium metal anode during the Li plating/stripping process. However, due to the conductive nature of the conductive hosts, Li is easily deposited directly on the top of the hosts, which hinders it from fully functioning. To circumvent the issue, in this study, we designed a novel porous carbon host with a gradient‐pore‐size structure based on one‐dimensional (1D) carbon with different diameters. With this kind of host, stable cycling with high and stable Coulombic efficiency of ~98% is achieved at 0.5 mA cm−2 with an areal capacity of 1 mAh cm−2 over 320 cycles. In contrast, the normal three‐dimensional (3D) carbon nanotube host presents a moss‐like Li morphology with wildly fluctuating Coulombic efficiency after 100 cycles. The results reveal that the unique gradient‐pore‐size structure of the 3D conductive host greatly improves the performance of lithium metal batteries.
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spelling doaj.art-2bcdff2c96b545659631f2a75a8c0f412022-12-22T03:01:54ZengWileyCarbon Energy2637-93682022-07-014465466410.1002/cey2.193A novel design of 3D carbon host for stable lithium metal anodeHang Liu0Jie Di1Ping Wang2Rui Gao3Han Tian4Pengfei Ren5Qingxi Yuan6Wanxia Huang7Ruiping Liu8Qiang Liu9Ming Feng10Department of Materials Science and Engineering China University of Mining & Technology (Beijing) Beijing ChinaDepartment of Materials Science and Engineering China University of Mining & Technology (Beijing) Beijing ChinaKey Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun ChinaKey Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun ChinaDepartment of Materials Science and Engineering China University of Mining & Technology (Beijing) Beijing ChinaDepartment of Materials Science and Engineering China University of Mining & Technology (Beijing) Beijing ChinaBeijing Synchrotron Radiation Facility, Institute of High Energy Physics Chinese Academy of Sciences Beijing ChinaBeijing Synchrotron Radiation Facility, Institute of High Energy Physics Chinese Academy of Sciences Beijing ChinaDepartment of Materials Science and Engineering China University of Mining & Technology (Beijing) Beijing ChinaDepartment of Materials Science and Engineering China University of Mining & Technology (Beijing) Beijing ChinaKey Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education Jilin Normal University Changchun ChinaAbstract Rational design of porous conductive hosts with high electrical conductivity, large surface area, and adequate interior space is desirable to suppressing dendritic lithium growth and accommodating large volume change of lithium metal anode during the Li plating/stripping process. However, due to the conductive nature of the conductive hosts, Li is easily deposited directly on the top of the hosts, which hinders it from fully functioning. To circumvent the issue, in this study, we designed a novel porous carbon host with a gradient‐pore‐size structure based on one‐dimensional (1D) carbon with different diameters. With this kind of host, stable cycling with high and stable Coulombic efficiency of ~98% is achieved at 0.5 mA cm−2 with an areal capacity of 1 mAh cm−2 over 320 cycles. In contrast, the normal three‐dimensional (3D) carbon nanotube host presents a moss‐like Li morphology with wildly fluctuating Coulombic efficiency after 100 cycles. The results reveal that the unique gradient‐pore‐size structure of the 3D conductive host greatly improves the performance of lithium metal batteries.https://doi.org/10.1002/cey2.1933D conductive hostsanodescarbonLi dendriteslithium metal batteries
spellingShingle Hang Liu
Jie Di
Ping Wang
Rui Gao
Han Tian
Pengfei Ren
Qingxi Yuan
Wanxia Huang
Ruiping Liu
Qiang Liu
Ming Feng
A novel design of 3D carbon host for stable lithium metal anode
Carbon Energy
3D conductive hosts
anodes
carbon
Li dendrites
lithium metal batteries
title A novel design of 3D carbon host for stable lithium metal anode
title_full A novel design of 3D carbon host for stable lithium metal anode
title_fullStr A novel design of 3D carbon host for stable lithium metal anode
title_full_unstemmed A novel design of 3D carbon host for stable lithium metal anode
title_short A novel design of 3D carbon host for stable lithium metal anode
title_sort novel design of 3d carbon host for stable lithium metal anode
topic 3D conductive hosts
anodes
carbon
Li dendrites
lithium metal batteries
url https://doi.org/10.1002/cey2.193
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