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

DSpace/Manakin Repository

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

Show full item record

Title: A New Catalyst-Embedded Hierarchical Air Electrode For High-Performance Li-O₂ Batteries
Author(s):
Lim, H. -D;
Song, H.;
Gwon, H.;
Park, K. -Y;
Kim, J.;
Bae, Y.;
Kim, H.;
Jung, S. -K;
Kim, T.;
Kim, Y. H.;
Lepró, Xavier (UT Dallas);
Ovalle-Robles, Raquel (UT Dallas);
Baughman, Ray H. (UT Dallas);
Kang, K.
Format: Text
Item Type: Article
Keywords: Electrodes
Carbon nanotubes (CNT)
Li-O2
Storage batteries
Description: Includes supplementary information.
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.
ISSN: 1754-5692
Persistent Link: http://hdl.handle.net/10735.1/3853
http://dx.doi.org/10.1039/c3ee41910j
Terms of Use: ©2013 The Royal Society of Chemistry. This article may not be further made available or distributed.

Files in this item

Files Size Format View
AMNI-RHBaughman-309593.67.pdf 13.74Mb PDF View/Open Article

This item appears in the following Collection(s)


Show full item record