Nucleation and Growth of Lithium Peroxide in the Li-O-2 Battery

Sampson Lau; Lynden A. Archer

doi:10.1021/acs.nanolett.5b02149

Nucleation and Growth of Lithium Peroxide in the Li-O-2 Battery

Sampson Lau, Lynden A. Archer

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

140 Scopus citations

Abstract

We study the relationship between Li2O2 morphology and the electrochemical performance of the Li-O2 battery using a combination of experiment and theory. Experimental Li-O2 battery discharge curves are accurately captured by a theoretical model in which electrode performance is limited by the nucleation and growth of discrete Li2O2 nanostructures in the cathode. We further show that the characteristic sharp voltage drop widely reported at the end of discharge results from the decrease in electrochemical surface area as Li2O2 covers the cathode surface. Preventing surface nucleation is highlighted as a core strategy for increasing Li-O2 battery capacity.

Original language	English (US)
Pages (from-to)	5995-6002
Number of pages	8
Journal	Nano Letters
Volume	15
Issue number	9
DOIs	https://doi.org/10.1021/acs.nanolett.5b02149
State	Published - 2015
Externally published	Yes

ASJC Scopus subject areas

Bioengineering
General Materials Science
General Chemistry
Mechanical Engineering
Condensed Matter Physics

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10.1021/acs.nanolett.5b02149

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title = "Nucleation and Growth of Lithium Peroxide in the Li-O-2 Battery",

abstract = "We study the relationship between Li2O2 morphology and the electrochemical performance of the Li-O2 battery using a combination of experiment and theory. Experimental Li-O2 battery discharge curves are accurately captured by a theoretical model in which electrode performance is limited by the nucleation and growth of discrete Li2O2 nanostructures in the cathode. We further show that the characteristic sharp voltage drop widely reported at the end of discharge results from the decrease in electrochemical surface area as Li2O2 covers the cathode surface. Preventing surface nucleation is highlighted as a core strategy for increasing Li-O2 battery capacity.",

author = "Sampson Lau and Archer, {Lynden A.}",

note = "KAUST Repository Item: Exported on 2021-11-03 Acknowledged KAUST grant number(s): KUS-C1-018-02 Acknowledgements: The authors gratefully acknowledge support from the National Science Foundation Partnerships for Innovation Program (Grant No. IIP-1237622) and by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST). S.L. acknowledges support from the Department of Defense (DoD) through the National Defense Science & Engineering Graduate Fellowship (NDSEG) Program. This work made use of the Cornell Center for Materials Research Shared Facilities which are supported through the NSF MRSEC program (Grant No. DMR-1120296). This publication acknowledges KAUST support, but has no KAUST affiliated authors.",

year = "2015",

doi = "10.1021/acs.nanolett.5b02149",

language = "English (US)",

volume = "15",

pages = "5995--6002",

journal = "Nano Letters",

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publisher = "American Chemical Society",

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T1 - Nucleation and Growth of Lithium Peroxide in the Li-O-2 Battery

AU - Lau, Sampson

AU - Archer, Lynden A.

N1 - KAUST Repository Item: Exported on 2021-11-03 Acknowledged KAUST grant number(s): KUS-C1-018-02 Acknowledgements: The authors gratefully acknowledge support from the National Science Foundation Partnerships for Innovation Program (Grant No. IIP-1237622) and by Award No. KUS-C1-018-02, made by King Abdullah University of Science and Technology (KAUST). S.L. acknowledges support from the Department of Defense (DoD) through the National Defense Science & Engineering Graduate Fellowship (NDSEG) Program. This work made use of the Cornell Center for Materials Research Shared Facilities which are supported through the NSF MRSEC program (Grant No. DMR-1120296). This publication acknowledges KAUST support, but has no KAUST affiliated authors.

PY - 2015

Y1 - 2015

N2 - We study the relationship between Li2O2 morphology and the electrochemical performance of the Li-O2 battery using a combination of experiment and theory. Experimental Li-O2 battery discharge curves are accurately captured by a theoretical model in which electrode performance is limited by the nucleation and growth of discrete Li2O2 nanostructures in the cathode. We further show that the characteristic sharp voltage drop widely reported at the end of discharge results from the decrease in electrochemical surface area as Li2O2 covers the cathode surface. Preventing surface nucleation is highlighted as a core strategy for increasing Li-O2 battery capacity.

AB - We study the relationship between Li2O2 morphology and the electrochemical performance of the Li-O2 battery using a combination of experiment and theory. Experimental Li-O2 battery discharge curves are accurately captured by a theoretical model in which electrode performance is limited by the nucleation and growth of discrete Li2O2 nanostructures in the cathode. We further show that the characteristic sharp voltage drop widely reported at the end of discharge results from the decrease in electrochemical surface area as Li2O2 covers the cathode surface. Preventing surface nucleation is highlighted as a core strategy for increasing Li-O2 battery capacity.

UR - http://hdl.handle.net/10754/673069

UR - https://pubs.acs.org/doi/10.1021/acs.nanolett.5b02149

UR - http://www.scopus.com/inward/record.url?scp=84941121296&partnerID=8YFLogxK

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DO - 10.1021/acs.nanolett.5b02149

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VL - 15

SP - 5995

EP - 6002

JO - Nano Letters

JF - Nano Letters

IS - 9

ER -

Nucleation and Growth of Lithium Peroxide in the Li-O-2 Battery

Abstract

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