Inter-layer-calated Thin Li Metal Electrode with Improved Battery Capacity Retention and Dendrite Suppression

X. CHEN; M. SHANG; J. NIU

doi:10.1021/acs.nanolett.0c00201

Inter-layer-calated Thin Li Metal Electrode with Improved Battery Capacity Retention and Dendrite Suppression

X. CHEN, M. SHANG, J. NIU

Research output: Journal Publications › Journal Article (refereed) › peer-review

49 Citations (Scopus)

Abstract

An inter-layer-calated thin Li metal (ILC-Li) electrode using nondelaminated 2D Ti3C2Tx MXene stacks (15 μm) coated on a thin Li host (30 μm) was developed. The excellent electrical conductivity and expanded interlayer space of the MXene provide a fast e-/Li+ transport while the layer limits the Li growth along the perpendicular direction, thus largely mitigating the dendrite growth. The highly reversible Li deposition/extraction greatly reduces the dead lithium and electrolyte consumption by forming a thin solid-electrolyte-interphase (SEI) layer. A small overpotential of less than 135 mV in symmetric cells was achieved after >1050 cycles at 10 mA cm-2 and 10 mAh cm-2. In a full cell, the battery exhibited an improved capacity retention when compared with Li foil, particularly with lean electrolyte of 2.5 μL mAh-1, thus leading to a high energy density up to 366.6 Wh/kg. The current approach is manufacture scalable, which displays promising potentials in lithium ion batteries. Copyright © 2020 American Chemical Society.

Original language	English
Pages (from-to)	2639-2646
Number of pages	7
Journal	Nano Letters
Volume	20
Issue number	4
DOIs	https://doi.org/10.1021/acs.nanolett.0c00201
Publication status	Published - 2020
Externally published	Yes

Bibliographical note

Materials synthesis and battery tests were performed at the Energy Storage Lab of University of Wisconsin-Milwaukee (UWM). XRD and 3D confocal microscopy characterizations were done at the Advanced Analysis Facility (AAF), UWM. SEM imaging was carried out at Electron Microscopy Lab of UWM Biology Department. Atomic resolution S/TEM imaging and EDS mapping were collected at the University of Illinois at Chicago (UIC). XPS tests were performed at the facility of NUANCE Center at Northwestern University. X.C. thanks Bangxing Li and Yingying lv for helpful discussions. All authors acknowledge the support from the Research Growth Initiative (RGI) and UW System Applied Research Grant Program (ARG).

Keywords

Dendrite
Li metal electrode
Lithium ion batteries
MXene

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1021/acs.nanolett.0c00201

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title = "Inter-layer-calated Thin Li Metal Electrode with Improved Battery Capacity Retention and Dendrite Suppression",

abstract = "An inter-layer-calated thin Li metal (ILC-Li) electrode using nondelaminated 2D Ti3C2Tx MXene stacks (15 μm) coated on a thin Li host (30 μm) was developed. The excellent electrical conductivity and expanded interlayer space of the MXene provide a fast e-/Li+ transport while the layer limits the Li growth along the perpendicular direction, thus largely mitigating the dendrite growth. The highly reversible Li deposition/extraction greatly reduces the dead lithium and electrolyte consumption by forming a thin solid-electrolyte-interphase (SEI) layer. A small overpotential of less than 135 mV in symmetric cells was achieved after >1050 cycles at 10 mA cm-2 and 10 mAh cm-2. In a full cell, the battery exhibited an improved capacity retention when compared with Li foil, particularly with lean electrolyte of 2.5 μL mAh-1, thus leading to a high energy density up to 366.6 Wh/kg. The current approach is manufacture scalable, which displays promising potentials in lithium ion batteries. Copyright {\textcopyright} 2020 American Chemical Society.",

keywords = "Dendrite, Li metal electrode, Lithium ion batteries, MXene",

author = "X. CHEN and M. SHANG and J. NIU",

note = "Materials synthesis and battery tests were performed at the Energy Storage Lab of University of Wisconsin-Milwaukee (UWM). XRD and 3D confocal microscopy characterizations were done at the Advanced Analysis Facility (AAF), UWM. SEM imaging was carried out at Electron Microscopy Lab of UWM Biology Department. Atomic resolution S/TEM imaging and EDS mapping were collected at the University of Illinois at Chicago (UIC). XPS tests were performed at the facility of NUANCE Center at Northwestern University. X.C. thanks Bangxing Li and Yingying lv for helpful discussions. All authors acknowledge the support from the Research Growth Initiative (RGI) and UW System Applied Research Grant Program (ARG).",

year = "2020",

doi = "10.1021/acs.nanolett.0c00201",

language = "English",

volume = "20",

pages = "2639--2646",

journal = "Nano Letters",

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T1 - Inter-layer-calated Thin Li Metal Electrode with Improved Battery Capacity Retention and Dendrite Suppression

AU - CHEN, X.

AU - SHANG, M.

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N1 - Materials synthesis and battery tests were performed at the Energy Storage Lab of University of Wisconsin-Milwaukee (UWM). XRD and 3D confocal microscopy characterizations were done at the Advanced Analysis Facility (AAF), UWM. SEM imaging was carried out at Electron Microscopy Lab of UWM Biology Department. Atomic resolution S/TEM imaging and EDS mapping were collected at the University of Illinois at Chicago (UIC). XPS tests were performed at the facility of NUANCE Center at Northwestern University. X.C. thanks Bangxing Li and Yingying lv for helpful discussions. All authors acknowledge the support from the Research Growth Initiative (RGI) and UW System Applied Research Grant Program (ARG).

PY - 2020

Y1 - 2020

N2 - An inter-layer-calated thin Li metal (ILC-Li) electrode using nondelaminated 2D Ti3C2Tx MXene stacks (15 μm) coated on a thin Li host (30 μm) was developed. The excellent electrical conductivity and expanded interlayer space of the MXene provide a fast e-/Li+ transport while the layer limits the Li growth along the perpendicular direction, thus largely mitigating the dendrite growth. The highly reversible Li deposition/extraction greatly reduces the dead lithium and electrolyte consumption by forming a thin solid-electrolyte-interphase (SEI) layer. A small overpotential of less than 135 mV in symmetric cells was achieved after >1050 cycles at 10 mA cm-2 and 10 mAh cm-2. In a full cell, the battery exhibited an improved capacity retention when compared with Li foil, particularly with lean electrolyte of 2.5 μL mAh-1, thus leading to a high energy density up to 366.6 Wh/kg. The current approach is manufacture scalable, which displays promising potentials in lithium ion batteries. Copyright © 2020 American Chemical Society.

AB - An inter-layer-calated thin Li metal (ILC-Li) electrode using nondelaminated 2D Ti3C2Tx MXene stacks (15 μm) coated on a thin Li host (30 μm) was developed. The excellent electrical conductivity and expanded interlayer space of the MXene provide a fast e-/Li+ transport while the layer limits the Li growth along the perpendicular direction, thus largely mitigating the dendrite growth. The highly reversible Li deposition/extraction greatly reduces the dead lithium and electrolyte consumption by forming a thin solid-electrolyte-interphase (SEI) layer. A small overpotential of less than 135 mV in symmetric cells was achieved after >1050 cycles at 10 mA cm-2 and 10 mAh cm-2. In a full cell, the battery exhibited an improved capacity retention when compared with Li foil, particularly with lean electrolyte of 2.5 μL mAh-1, thus leading to a high energy density up to 366.6 Wh/kg. The current approach is manufacture scalable, which displays promising potentials in lithium ion batteries. Copyright © 2020 American Chemical Society.

KW - Dendrite

KW - Li metal electrode

KW - Lithium ion batteries

KW - MXene

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U2 - 10.1021/acs.nanolett.0c00201

DO - 10.1021/acs.nanolett.0c00201

M3 - Journal Article (refereed)

SN - 1530-6984

VL - 20

SP - 2639

EP - 2646

JO - Nano Letters

JF - Nano Letters

IS - 4

ER -

Inter-layer-calated Thin Li Metal Electrode with Improved Battery Capacity Retention and Dendrite Suppression

Abstract

Bibliographical note

Keywords

UN SDGs

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