Robust Design of Dual-Phasic Carbon Cathode for Lithium-Oxygen Batteries
- Authors
- Hien Thi Thu Pham; Kim, Yeongsu; Kim, Young-Jun; Lee, Jong-Won; Park, Min-Sik
- Issue Date
- Aug-2019
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- carbon nanotube; cathode; dual phase; lithium-oxygen battery; metal-organic framework
- Citation
- ADVANCED FUNCTIONAL MATERIALS, v.29, no.31, pp.1 - 8
- Indexed
- SCIE
SCOPUS
- Journal Title
- ADVANCED FUNCTIONAL MATERIALS
- Volume
- 29
- Number
- 31
- Start Page
- 1
- End Page
- 8
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/189918
- DOI
- 10.1002/adfm.201902915
- ISSN
- 1616-301X
- Abstract
- Given that the performance of a lithium-oxygen battery (LOB) is determined by the electrochemical reactions occurring on the cathode, the development of advanced cathode nanoarchitectures is of great importance for the realization of high-energy-density, reversible LOBs. Herein, a robust cathode design is proposed for LOBs based on a dual-phasic carbon nanoarchitecture. The cathode is composed of an interwoven network of porous metal-organic framework (MOF) derived carbon (MOF-C) and conductive carbon nanotubes (CNTs). The dual-phasic nanoarchitecture incorporates the advantages of both components: MOF-C provides a large surface area for the oxygen reactions and a large pore volume for Li2O2 storage, and CNTs provide facile pathways for electron and O-2 transport as well as additional void spaces for Li2O2 accommodation. It is demonstrated that the synergistic nanoarchitecturing of the dual-phasic MOF-C/CNT material results in promising electrochemical performance of LOBs, as evidenced by a high discharge capacity of approximate to 10 050 mAh g(-1) and a stable cycling performance over 75 cycles.
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