Organogermanium nanowire cathodes for efficient lithium-oxygen batteries

Gwang Hee Lee; Myeong Chang Sung; Yoon Seon Kim; Bobae Ju; Dong Wan Kim

doi:10.1021/acsnano.0c07262

Organogermanium nanowire cathodes for efficient lithium-oxygen batteries

Gwang Hee Lee, Myeong Chang Sung, Yoon Seon Kim, Bobae Ju, Dong Wan Kim

School of Civil, Environmental and Architectural Engineering

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

6 Citations (Scopus)

Abstract

We report a technique for effectively neutralizing the generation of harmful superoxide species, the source of parasitic reactions, in lithium-oxygen batteries to generate stable substances. In organic electrolytes, organogermanium (Propa-germanium, Ge-132) nanowires can suppress solvated superoxide and induce strong surface-adsorption reaction due to their high anti-superoxide disproportionation activity. Resultantly, the effect of organogermanium nanowires mitigate toxic oxidative stress to stabilize organic electrolytes and promote good Li₂O₂ growth. These factors led to long duration of the electrolytes and impressive rechargeability of lithium-oxygen batteries.

Original language	English
Pages (from-to)	15894-15903
Number of pages	10
Journal	ACS nano
Volume	14
Issue number	11
DOIs	https://doi.org/10.1021/acsnano.0c07262
Publication status	Published - 2020 Nov 24

Keywords

Anti-superoxide disproportionation
LiO growth
Lithium-oxygen battery
Organogermanium nanowires
Surface-adsorption reaction

ASJC Scopus subject areas

Materials Science(all)
Engineering(all)
Physics and Astronomy(all)

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10.1021/acsnano.0c07262

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title = "Organogermanium nanowire cathodes for efficient lithium-oxygen batteries",

abstract = "We report a technique for effectively neutralizing the generation of harmful superoxide species, the source of parasitic reactions, in lithium-oxygen batteries to generate stable substances. In organic electrolytes, organogermanium (Propa-germanium, Ge-132) nanowires can suppress solvated superoxide and induce strong surface-adsorption reaction due to their high anti-superoxide disproportionation activity. Resultantly, the effect of organogermanium nanowires mitigate toxic oxidative stress to stabilize organic electrolytes and promote good Li2O2 growth. These factors led to long duration of the electrolytes and impressive rechargeability of lithium-oxygen batteries.",

keywords = "Anti-superoxide disproportionation, LiO growth, Lithium-oxygen battery, Organogermanium nanowires, Surface-adsorption reaction",

author = "Lee, {Gwang Hee} and Sung, {Myeong Chang} and Kim, {Yoon Seon} and Bobae Ju and Kim, {Dong Wan}",

note = "Funding Information: This work was supported by a Korea University Grant and the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT, and Future Planning [NRF-2017R1C1B2004869, 2019R1A2B5B02070203, and 2018M3D1A1058744]. Publisher Copyright: {\textcopyright} 2020 American Chemical Society.",

year = "2020",

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doi = "10.1021/acsnano.0c07262",

language = "English",

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AU - Lee, Gwang Hee

AU - Sung, Myeong Chang

AU - Kim, Yoon Seon

AU - Ju, Bobae

AU - Kim, Dong Wan

N1 - Funding Information: This work was supported by a Korea University Grant and the National Research Foundation of Korea (NRF) Grant funded by the Ministry of Science, ICT, and Future Planning [NRF-2017R1C1B2004869, 2019R1A2B5B02070203, and 2018M3D1A1058744]. Publisher Copyright: © 2020 American Chemical Society.

PY - 2020/11/24

Y1 - 2020/11/24

N2 - We report a technique for effectively neutralizing the generation of harmful superoxide species, the source of parasitic reactions, in lithium-oxygen batteries to generate stable substances. In organic electrolytes, organogermanium (Propa-germanium, Ge-132) nanowires can suppress solvated superoxide and induce strong surface-adsorption reaction due to their high anti-superoxide disproportionation activity. Resultantly, the effect of organogermanium nanowires mitigate toxic oxidative stress to stabilize organic electrolytes and promote good Li2O2 growth. These factors led to long duration of the electrolytes and impressive rechargeability of lithium-oxygen batteries.

AB - We report a technique for effectively neutralizing the generation of harmful superoxide species, the source of parasitic reactions, in lithium-oxygen batteries to generate stable substances. In organic electrolytes, organogermanium (Propa-germanium, Ge-132) nanowires can suppress solvated superoxide and induce strong surface-adsorption reaction due to their high anti-superoxide disproportionation activity. Resultantly, the effect of organogermanium nanowires mitigate toxic oxidative stress to stabilize organic electrolytes and promote good Li2O2 growth. These factors led to long duration of the electrolytes and impressive rechargeability of lithium-oxygen batteries.

KW - Anti-superoxide disproportionation

KW - LiO growth

KW - Lithium-oxygen battery

KW - Organogermanium nanowires

KW - Surface-adsorption reaction

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SN - 1936-0851

VL - 14

SP - 15894

EP - 15903

JO - ACS Nano

JF - ACS Nano

IS - 11

ER -

Organogermanium nanowire cathodes for efficient lithium-oxygen batteries

Abstract

Keywords

ASJC Scopus subject areas

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