Mesoporous α-MnO2/Pd catalyst air electrode for rechargeable lithium-air battery

Arjun Kumar Thapa, Tatsumi Ishihara

Research output: Contribution to journalArticle

158 Citations (Scopus)

Abstract

Rechargeable lithium-air battery is studied using Pd/mesoporous α-MnO2 air composite electrode. In the present work, we have studied the preparation and electrochemical performance of ordered mesoporous α-MnO2 as a cathode catalyst for rechargeable Li-air batteries. α-MnO2 was prepared by reduction of KMnO4 solution in acidic aqueous solution followed by successive proton and alkali-ion exchange method. α-MnO2 with high surface area of 33-133.0 m 2 g-1 was successively synthesized and used as an electrode catalyst for Li-air battery. It was found that the mixture of Pd and mesoporous α-MnO2 electrode shows the high activity to oxidation and reduction of Li to form Li2O2 or Li 2O. Application of Pd/mesoporous α-MnO2, which is mixed with teflonized acetylene binder (TAB), for air electrode is effective for decreasing the charge potential and also improved the energy efficiency as well as cyclability.

Original languageEnglish
Pages (from-to)7016-7020
Number of pages5
JournalJournal of Power Sources
Volume196
Issue number16
DOIs
Publication statusPublished - Aug 15 2011

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Lithium
electric batteries
lithium
catalysts
Electrodes
Catalysts
electrodes
air
Air
Acetylene
Alkalies
acetylene
Binders
Energy efficiency
Protons
alkalies
Ion exchange
Cathodes
Thermodynamic properties
cathodes

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this

Mesoporous α-MnO2/Pd catalyst air electrode for rechargeable lithium-air battery. / Thapa, Arjun Kumar; Ishihara, Tatsumi.

In: Journal of Power Sources, Vol. 196, No. 16, 15.08.2011, p. 7016-7020.

Research output: Contribution to journalArticle

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