Dynamic intelligent cu current collectors for ultrastable lithium metal anodes

Jianyu Chen; Jin Zhao; Linna Lei; Pan Li; Jun Chen; Yu Zhang; Yizhou Wang; Yanwen Ma; Dan Wang

doi:10.1021/acs.nanolett.0c00316

Dynamic intelligent cu current collectors for ultrastable lithium metal anodes

Jianyu Chen, Jin Zhao, Linna Lei, Pan Li^*, Jun Chen, Yu Zhang, Yizhou Wang, Yanwen Ma, Dan Wang

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

94 Scopus citations

Abstract

Three-dimensional (3D) current collectors have shown great potential in realizing dendrite-free lithium (Li) metal anodes. However, the rigid 3D current collectors could not simultaneously suppress Li dendrite growth and allow Li plating/stripping under high capacities and large current densities. Here, we report a dynamic intelligent Cu (DICu) current collector that dynamically accommodates the volume change by changing the packing density of the assembled particles. The Li/DICu electrode achieves a high Coulombic efficiency of 99.6% after 800 cycles. The symmetrical cell shows exceptional cycling stability under the high current density of 10 mA cm^-2. Notably, when assembled in full-cell batteries, the Li/DICu|LiFePO₄ battery maintains a specific capacity of 139.5 mAh g^-1 at 1 C for 500 cycles, and the Li/DICu|S battery delivers a specific capacity of 804 mAh g^-1 after 500 cycles at 0.5 C, corresponding to the best performance among Li metal batteries with Cu-based current collectors to date.

Original language	English (US)
Pages (from-to)	3403-3410
Number of pages	8
Journal	Nano Letters
Volume	20
Issue number	5
DOIs	https://doi.org/10.1021/acs.nanolett.0c00316
State	Published - May 13 2020

Keywords

Cu current collectors
Dynamic intelligent structure
Li dendrites
Li metal anodes
Ultrastable performance

ASJC Scopus subject areas

Bioengineering
General Chemistry
General Materials Science
Condensed Matter Physics
Mechanical Engineering

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10.1021/acs.nanolett.0c00316

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@article{ec0c2a60c7d1472994720c40bf32387b,

title = "Dynamic intelligent cu current collectors for ultrastable lithium metal anodes",

abstract = "Three-dimensional (3D) current collectors have shown great potential in realizing dendrite-free lithium (Li) metal anodes. However, the rigid 3D current collectors could not simultaneously suppress Li dendrite growth and allow Li plating/stripping under high capacities and large current densities. Here, we report a dynamic intelligent Cu (DICu) current collector that dynamically accommodates the volume change by changing the packing density of the assembled particles. The Li/DICu electrode achieves a high Coulombic efficiency of 99.6% after 800 cycles. The symmetrical cell shows exceptional cycling stability under the high current density of 10 mA cm-2. Notably, when assembled in full-cell batteries, the Li/DICu|LiFePO4 battery maintains a specific capacity of 139.5 mAh g-1 at 1 C for 500 cycles, and the Li/DICu|S battery delivers a specific capacity of 804 mAh g-1 after 500 cycles at 0.5 C, corresponding to the best performance among Li metal batteries with Cu-based current collectors to date.",

keywords = "Cu current collectors, Dynamic intelligent structure, Li dendrites, Li metal anodes, Ultrastable performance",

author = "Jianyu Chen and Jin Zhao and Linna Lei and Pan Li and Jun Chen and Yu Zhang and Yizhou Wang and Yanwen Ma and Dan Wang",

note = "Funding Information: This work is jointly supported by NSFC (51772157, 51802161, and 21820102002), Priority Academic Program Development of Jiangsu Higher Education Institutions, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Synergistic Innovation Center for Organic Electronics and Information Displays, Qing Lan Project of Jiangsu Province. Publisher Copyright: {\textcopyright} 2020 American Chemical Society.",

year = "2020",

month = may,

day = "13",

doi = "10.1021/acs.nanolett.0c00316",

language = "English (US)",

volume = "20",

pages = "3403--3410",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "5",

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TY - JOUR

T1 - Dynamic intelligent cu current collectors for ultrastable lithium metal anodes

AU - Chen, Jianyu

AU - Zhao, Jin

AU - Lei, Linna

AU - Li, Pan

AU - Chen, Jun

AU - Zhang, Yu

AU - Wang, Yizhou

AU - Ma, Yanwen

AU - Wang, Dan

N1 - Funding Information: This work is jointly supported by NSFC (51772157, 51802161, and 21820102002), Priority Academic Program Development of Jiangsu Higher Education Institutions, Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Synergistic Innovation Center for Organic Electronics and Information Displays, Qing Lan Project of Jiangsu Province. Publisher Copyright: © 2020 American Chemical Society.

PY - 2020/5/13

Y1 - 2020/5/13

N2 - Three-dimensional (3D) current collectors have shown great potential in realizing dendrite-free lithium (Li) metal anodes. However, the rigid 3D current collectors could not simultaneously suppress Li dendrite growth and allow Li plating/stripping under high capacities and large current densities. Here, we report a dynamic intelligent Cu (DICu) current collector that dynamically accommodates the volume change by changing the packing density of the assembled particles. The Li/DICu electrode achieves a high Coulombic efficiency of 99.6% after 800 cycles. The symmetrical cell shows exceptional cycling stability under the high current density of 10 mA cm-2. Notably, when assembled in full-cell batteries, the Li/DICu|LiFePO4 battery maintains a specific capacity of 139.5 mAh g-1 at 1 C for 500 cycles, and the Li/DICu|S battery delivers a specific capacity of 804 mAh g-1 after 500 cycles at 0.5 C, corresponding to the best performance among Li metal batteries with Cu-based current collectors to date.

AB - Three-dimensional (3D) current collectors have shown great potential in realizing dendrite-free lithium (Li) metal anodes. However, the rigid 3D current collectors could not simultaneously suppress Li dendrite growth and allow Li plating/stripping under high capacities and large current densities. Here, we report a dynamic intelligent Cu (DICu) current collector that dynamically accommodates the volume change by changing the packing density of the assembled particles. The Li/DICu electrode achieves a high Coulombic efficiency of 99.6% after 800 cycles. The symmetrical cell shows exceptional cycling stability under the high current density of 10 mA cm-2. Notably, when assembled in full-cell batteries, the Li/DICu|LiFePO4 battery maintains a specific capacity of 139.5 mAh g-1 at 1 C for 500 cycles, and the Li/DICu|S battery delivers a specific capacity of 804 mAh g-1 after 500 cycles at 0.5 C, corresponding to the best performance among Li metal batteries with Cu-based current collectors to date.

KW - Cu current collectors

KW - Dynamic intelligent structure

KW - Li dendrites

KW - Li metal anodes

KW - Ultrastable performance

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Dynamic intelligent cu current collectors for ultrastable lithium metal anodes

Abstract

Keywords

ASJC Scopus subject areas

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