Carbon-free cobalt oxide cathodes with tunable nanoarchitectures for rechargeable lithium–oxygen batteries

Ahmer Riaz; Kyu-Nam Jung; Wonyoung Chang; Seung-Bok Lee; Tak-Hyoung Lim; Seok-Joo Park; Rak-Hyun Song; Sukeun Yoon; Kyung-Hee Shin; Jong-Won Lee

doi:10.1039/C3CC42794C

Carbon-free cobalt oxide cathodes with tunable nanoarchitectures for rechargeable lithium–oxygen batteries†

Ahmer Riaz,^a Kyu-Nam Jung,^a Wonyoung Chang,^b Seung-Bok Lee,^a Tak-Hyoung Lim,^a Seok-Joo Park,^a Rak-Hyun Song,^a Sukeun Yoon,^a Kyung-Hee Shin^a and Jong-Won Lee*^a

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* Corresponding authors

^a New and Renewable Energy Research Division, Korea Institute of Energy Research, 152 Gajeong-ro, Yuseong-gu, Daejeon, Republic of Korea
E-mail: jjong277@kier.re.kr
Fax: +82-42-860-3297
Tel: +82-42-860-3025

^b Center for Energy Convergence, Korea Institute of Science and Technology, Hwarangno, 14-gil 5, Seongbuk-gu, Seoul, Republic of Korea

Abstract

Carbon-free cobalt oxide cathodes for lithium–oxygen batteries are fabricated via an electrodeposition–conversion process. The Co₃O₄-only cathodes show a remarkably reduced voltage gap (by ca. 550 mV compared to the carbon-only cathode) as well as excellent long-term cyclability.

Chemical Communications

Carbon-free cobalt oxide cathodes with tunable nanoarchitectures for rechargeable lithium–oxygen batteries†

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Carbon-free cobalt oxide cathodes with tunable nanoarchitectures for rechargeable lithium–oxygen batteries

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