A New Catalyst-Embedded Hierarchical Air Electrode For High-Performance Li-O₂ Batteries

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A New Catalyst-Embedded Hierarchical Air Electrode For High-Performance Li-O₂ Batteries

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title A New Catalyst-Embedded Hierarchical Air Electrode For High-Performance Li-O₂ Batteries
contributor.author Lim, H. -D
contributor.author Song, H.
contributor.author Gwon, H.
contributor.author Park, K. -Y
contributor.author Kim, J.
contributor.author Bae, Y.
contributor.author Kim, H.
contributor.author Jung, S. -K
contributor.author Kim, T.
contributor.author Kim, Y. H.
contributor.author Lepr©, Xavier
contributor.author Ovalle-Robles, Raquel
contributor.author Baughman, Ray H.
contributor.author Kang, K.
contributor.utdAuthor Lepr©, Xavier
contributor.utdAuthor Ovalle-Robles, Raquel
contributor.utdAuthor Baughman, Ray H.
contributor.ISNI 0000 0003 5232 4253 (Baughman, R)
description Includes supplementary information.
description.abstract The Li-O₂ battery holds great promise as an ultra-high-energy- density device. However, its limited rechargeability and low energy efficiency remain key barriers to its practical application. Herein, we demonstrate that the ideal electrode morphology design combined with effective catalyst decoration can enhance the rechargeability of the Li-O₂ battery over 100 cycles with full discharge and charge. An aligned carbon structure with a hierarchical micro-nano-mesh ensures facile accessibility of reaction products and provides the optimal catalytic conditions for the Pt catalyst. The new electrode is highly reversible even at the extremely high current rate of 2 A g⁻¹. Moreover, we observed clearly distinct morphologies of discharge products when the catalyst is used. The effect of catalysts on the cycle stability is discussed.
identifier.issn 1754-5692
identifier.uri http://hdl.handle.net/10735.1/3853
identifier.bibliographicCitation Lim, H. -D, H. Song, H. Gwon, K. -Y Park, et al. 2013. "A new catalyst-embedded hierarchical air electrode for high-performance Li-O₂ batteries." Energy and Environmental Science 6(12): 3570-3575.
identifier.volume 6
identifier.issue 12
identifier.startpage 3570
subject Electrodes
subject Carbon nanotubes (CNT)
subject Li-O2
subject Storage batteries
date.created 2013-06-05
date.issued 2013-06-05
date.submitted 2013-06-05
relation.uri http://dx.doi.org/10.1039/c3ee41910j
rights ©2013 The Royal Society of Chemistry. This article may not be further made available or distributed.
source Energy and Environmental Science

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