Robust Cycling of Li–O2 Batteries through the Synergistic Effect of Blended Electrolytes

Byung Gon Kim; Je‐Nam Lee; Dong Jin Lee; Jung‐Ki Park; Jang Wook Choi

doi:10.1002/cssc.201200801

journal article Feb 01, 2013

Robust Cycling of Li–O2 Batteries through the Synergistic Effect of Blended Electrolytes

Byung Gon Kim

Je‐Nam Lee Dong Jin Lee Jung‐Ki Park Jang Wook Choi

ChemSusChem Vol. 6 No. 3 pp. 443-448 · Wiley

View at Publisher Save 10.1002/cssc.201200801

Abstract

AbstractDespite their exceptionally large specific capacities, the use of Li–O2 batteries has been limited because of their poor cycle lives, which originates from irreversible reaction processes during each cycle. Recent investigations have found that electrolyte decomposition is one of the most critical reasons for capacity decay. Herein, we report that a blended electrolyte, consisting of a carbonate solvent and an ionic liquid, improves the cycle lives of Li–O2 batteries remarkably through a synergistic effect from both components. Both electrolyte components perform complementary functions to each other: The ionic liquid suppresses the decomposition of the carbonate solvent, and the carbonate solvent resolves the poor ionic conductivity of the ionic liquid. This study confirms the importance and opportunities for the use of electrolytes in Li–O2 batteries.

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Details

Published: Feb 01, 2013
Vol/Issue: 6(3)
Pages: 443-448
License: View

Authors

B

Byung Gon Kim

Next Generation Battery Research Center, Korea Electrotechnology Research Institute (KERI), Gyeongsangnam-do 51543, Republic of Korea; Department of Electro-Functionality Materials Engineering, University of Science and Technology (UST), Daejeon 34113, Republic of Korea

Cite This Article

Byung Gon Kim, Je‐Nam Lee, Dong Jin Lee, et al. (2013). Robust Cycling of Li–O2 Batteries through the Synergistic Effect of Blended Electrolytes. ChemSusChem, 6(3), 443-448. https://doi.org/10.1002/cssc.201200801

Robust Cycling of Li–O2 Batteries through the Synergistic Effect of Blended Electrolytes

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