Catalytic behavior of V2O5 in rechargeable Li-O 2 batteries

Sung Hoon Lim; Bok Ki Kim; Woo Young Yoon

doi:10.1007/s10800-012-0480-7

Catalytic behavior of V₂O₅ in rechargeable Li-O ₂ batteries

Sung Hoon Lim, Bok Ki Kim, Woo Young Yoon

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

6 Citations (Scopus)

Abstract

The possibility of using vanadium pentoxide (V₂O₅) as a catalyst in rechargeable lithium-oxygen (Li-O₂) batteries was studied. A V₂O₅-carbon composite was cast onto Ni foam to form a cathode. Electrochemical cells designed based on the flat cell manufactured by Hohsen Corporation were fabricated. The initial discharge capacity was 715 mA h g^-1, and the maximum discharge capacity reached 2,260 mA h g^-1 during the twelfth cycle. The cell had high capacity retention during cycling (1.24 % during cycles 2-8). V₂O₅ acted as a catalyst as well as an active material, improving the specific capacity and capacity retention of the non-aqueous Li-O₂ cell more effectively than do other materials.

Original language	English
Pages (from-to)	1045-1048
Number of pages	4
Journal	Journal of Applied Electrochemistry
Volume	42
Issue number	12
DOIs	https://doi.org/10.1007/s10800-012-0480-7
Publication status	Published - 2012 Dec

Bibliographical note

Funding Information:
Acknowledgments This study was supported by a National Research Foundation (NRF) of Korea grant funded by the Korean government (MEST) (2011-0028757). The microstructures of the samples were observed using a scanning electron microscope (SEM) located at the Korea Basic Science Institute, Seoul Center.

Keywords

Catalyst
Lithium-air battery
Lithium-oxygen battery
Vanadium pentoxide

ASJC Scopus subject areas

General Chemical Engineering
Electrochemistry
Materials Chemistry

Access to Document

10.1007/s10800-012-0480-7

Cite this

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title = "Catalytic behavior of V2O5 in rechargeable Li-O 2 batteries",

abstract = "The possibility of using vanadium pentoxide (V2O5) as a catalyst in rechargeable lithium-oxygen (Li-O2) batteries was studied. A V2O5-carbon composite was cast onto Ni foam to form a cathode. Electrochemical cells designed based on the flat cell manufactured by Hohsen Corporation were fabricated. The initial discharge capacity was 715 mA h g-1, and the maximum discharge capacity reached 2,260 mA h g-1 during the twelfth cycle. The cell had high capacity retention during cycling (1.24 % during cycles 2-8). V2O5 acted as a catalyst as well as an active material, improving the specific capacity and capacity retention of the non-aqueous Li-O2 cell more effectively than do other materials.",

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author = "Lim, {Sung Hoon} and Kim, {Bok Ki} and Yoon, {Woo Young}",

note = "Funding Information: Acknowledgments This study was supported by a National Research Foundation (NRF) of Korea grant funded by the Korean government (MEST) (2011-0028757). The microstructures of the samples were observed using a scanning electron microscope (SEM) located at the Korea Basic Science Institute, Seoul Center.",

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AU - Yoon, Woo Young

N1 - Funding Information: Acknowledgments This study was supported by a National Research Foundation (NRF) of Korea grant funded by the Korean government (MEST) (2011-0028757). The microstructures of the samples were observed using a scanning electron microscope (SEM) located at the Korea Basic Science Institute, Seoul Center.

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AB - The possibility of using vanadium pentoxide (V2O5) as a catalyst in rechargeable lithium-oxygen (Li-O2) batteries was studied. A V2O5-carbon composite was cast onto Ni foam to form a cathode. Electrochemical cells designed based on the flat cell manufactured by Hohsen Corporation were fabricated. The initial discharge capacity was 715 mA h g-1, and the maximum discharge capacity reached 2,260 mA h g-1 during the twelfth cycle. The cell had high capacity retention during cycling (1.24 % during cycles 2-8). V2O5 acted as a catalyst as well as an active material, improving the specific capacity and capacity retention of the non-aqueous Li-O2 cell more effectively than do other materials.

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KW - Lithium-air battery

KW - Lithium-oxygen battery

KW - Vanadium pentoxide

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