Composite protective layer for Li metal anode in high-performance lithium-oxygen batteries

Dong Jin Lee; Hongkyung Lee; Jongchan Song; Myung Hyun Ryou; Yong Min Lee; Hee Tak Kim; Jung Ki Park

doi:10.1016/j.elecom.2013.12.022

Composite protective layer for Li metal anode in high-performance lithium-oxygen batteries

Dong Jin Lee, Hongkyung Lee, Jongchan Song, Myung Hyun Ryou, Yong Min Lee, Hee Tak Kim, Jung Ki Park

Department of Energy and Science and Engineering

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

125 Scopus citations

Abstract

Lithium-oxygen batteries are of great interest because of their very high-energy density; however, they present many challenges, one of which is the low cycling stability of a lithium (Li) metal anode. Here, we report a composite protective layer (CPL) comprising Al₂O₃ and polyvinylidene fluoride-hexafluoro propylene for a Li metal anode that resulted in a dramatic enhancement of the cycling stability of a lithium-oxygen battery. A cell with the CPL-coated Li metal anode exhibited more than 3 times higher discharge capacity at the 80th cycle compared to a cell without the CPL. X-ray photoelectron spectroscopy measurements for the cycled lithium metal anodes confirm that the CPL effectively suppressed electrolyte decomposition at the surface of the Li metal anode.

Original language	English
Pages (from-to)	45-48
Number of pages	4
Journal	Electrochemistry Communications
Volume	40
DOIs	https://doi.org/10.1016/j.elecom.2013.12.022
State	Published - Mar 2014

Bibliographical note

Funding Information:
This research was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) ( NRF-2009-0094219 ).

Keywords

Composite protective layer
Cycling stability
Electrolyte
Lithium metal anode
Lithium-oxygen battery

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10.1016/j.elecom.2013.12.022

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title = "Composite protective layer for Li metal anode in high-performance lithium-oxygen batteries",

abstract = "Lithium-oxygen batteries are of great interest because of their very high-energy density; however, they present many challenges, one of which is the low cycling stability of a lithium (Li) metal anode. Here, we report a composite protective layer (CPL) comprising Al2O3 and polyvinylidene fluoride-hexafluoro propylene for a Li metal anode that resulted in a dramatic enhancement of the cycling stability of a lithium-oxygen battery. A cell with the CPL-coated Li metal anode exhibited more than 3 times higher discharge capacity at the 80th cycle compared to a cell without the CPL. X-ray photoelectron spectroscopy measurements for the cycled lithium metal anodes confirm that the CPL effectively suppressed electrolyte decomposition at the surface of the Li metal anode.",

keywords = "Composite protective layer, Cycling stability, Electrolyte, Lithium metal anode, Lithium-oxygen battery",

author = "Lee, {Dong Jin} and Hongkyung Lee and Jongchan Song and Ryou, {Myung Hyun} and Lee, {Yong Min} and Kim, {Hee Tak} and Park, {Jung Ki}",

note = "Funding Information: This research was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) ( NRF-2009-0094219 ).",

year = "2014",

month = mar,

doi = "10.1016/j.elecom.2013.12.022",

language = "English",

volume = "40",

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journal = "Electrochemistry Communications",

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T1 - Composite protective layer for Li metal anode in high-performance lithium-oxygen batteries

AU - Lee, Dong Jin

AU - Lee, Hongkyung

AU - Song, Jongchan

AU - Ryou, Myung Hyun

AU - Lee, Yong Min

AU - Kim, Hee Tak

AU - Park, Jung Ki

N1 - Funding Information: This research was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (MEST) ( NRF-2009-0094219 ).

PY - 2014/3

Y1 - 2014/3

N2 - Lithium-oxygen batteries are of great interest because of their very high-energy density; however, they present many challenges, one of which is the low cycling stability of a lithium (Li) metal anode. Here, we report a composite protective layer (CPL) comprising Al2O3 and polyvinylidene fluoride-hexafluoro propylene for a Li metal anode that resulted in a dramatic enhancement of the cycling stability of a lithium-oxygen battery. A cell with the CPL-coated Li metal anode exhibited more than 3 times higher discharge capacity at the 80th cycle compared to a cell without the CPL. X-ray photoelectron spectroscopy measurements for the cycled lithium metal anodes confirm that the CPL effectively suppressed electrolyte decomposition at the surface of the Li metal anode.

AB - Lithium-oxygen batteries are of great interest because of their very high-energy density; however, they present many challenges, one of which is the low cycling stability of a lithium (Li) metal anode. Here, we report a composite protective layer (CPL) comprising Al2O3 and polyvinylidene fluoride-hexafluoro propylene for a Li metal anode that resulted in a dramatic enhancement of the cycling stability of a lithium-oxygen battery. A cell with the CPL-coated Li metal anode exhibited more than 3 times higher discharge capacity at the 80th cycle compared to a cell without the CPL. X-ray photoelectron spectroscopy measurements for the cycled lithium metal anodes confirm that the CPL effectively suppressed electrolyte decomposition at the surface of the Li metal anode.

KW - Composite protective layer

KW - Cycling stability

KW - Electrolyte

KW - Lithium metal anode

KW - Lithium-oxygen battery

UR - http://www.scopus.com/inward/record.url?scp=84892163063&partnerID=8YFLogxK

U2 - 10.1016/j.elecom.2013.12.022

DO - 10.1016/j.elecom.2013.12.022

M3 - Article

AN - SCOPUS:84892163063

SN - 1388-2481

VL - 40

SP - 45

EP - 48

JO - Electrochemistry Communications

JF - Electrochemistry Communications

ER -

Composite protective layer for Li metal anode in high-performance lithium-oxygen batteries

Abstract

Bibliographical note

Keywords

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