Superior Rechargeability and Efficiency of Lithium-Oxygen Batteries: Hierarchical Air Electrode Architecture Combined with a Soluble Catalyst
- Authors
- Lim, Hee-Dae; Song, Hyelynn; Kim, Jinsoo; Gwon, Hyeokjo; Bae, Youngjoon; Park, Kyu-Young; Hong, Jihyun; Kim, Haegyeom; Kim, Taewoo; Kim, Yong Hyup; Lepro, Xavier; Ovalle-Robles, Raquel; Baughman, Ray H.; Kang, Kisuk
- Issue Date
- Apr-2014
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- catalysts; carbon nanotubes; lithium-oxygen battery; redox mediators
- Citation
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, v.53, no.15, pp.3926 - 3931
- Indexed
- SCIE
SCOPUS
- Journal Title
- ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
- Volume
- 53
- Number
- 15
- Start Page
- 3926
- End Page
- 3931
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/187526
- DOI
- 10.1002/anie.201400711
- ISSN
- 1433-7851
- Abstract
- The lithium-oxygen battery has the potential to deliver extremely high energy densities; however, the practical use of Li-O-2 batteries has been restricted because of their poor cyclability and low energy efficiency. In this work, we report a novel Li-O-2 battery with high reversibility and good energy efficiency using a soluble catalyst combined with a hierarchical nanoporous air electrode. Through the porous three-dimensional network of the air electrode, not only lithium ions and oxygen but also soluble catalysts can be rapidly transported, enabling ultra-efficient electrode reactions and significantly enhanced catalytic activity. The novel Li-O-2 battery, combining an ideal air electrode and a soluble catalyst, can deliver a high reversible capacity (1000mAhg(-1)) up to 900cycles with reduced polarization (about 0.25V).
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