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나노입자 연구단
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High-efficiency and high-power rechargeable lithium-sulfur dioxide batteries exploiting conventional carbonate-based electrolytes

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Title
High-efficiency and high-power rechargeable lithium-sulfur dioxide batteries exploiting conventional carbonate-based electrolytes
Author(s)
Hyeokjun Park; Hee-Dae Lim; Hyung-Kyu Lim; Won Mo Seong; Sehwan Moon; Youngmin Ko; Byungju Lee; Youngjoon Bae; Hyungjun Kim; Kisuk Kang
Publication Date
2017-05
Journal
NATURE COMMUNICATIONS, v.8, no., pp.14989 -
Publisher
NATURE PUBLISHING GROUP
Abstract
Shedding new light on conventional batteries sometimes inspires a chemistry adoptable for rechargeable batteries. Recently, the primary lithium-sulfur dioxide battery, which offers a high energy density and long shelf-life, is successfully renewed as a promising rechargeable system exhibiting small polarization and good reversibility. Here, we demonstrate for the first time that reversible operation of the lithium-sulfur dioxide battery is also possible by exploiting conventional carbonate-based electrolytes. Theoretical and experimental studies reveal that the sulfur dioxide electrochemistry is highly stable in carbonate-based electrolytes, enabling the reversible formation of lithium dithionite. The use of the carbonate-based electrolyte leads to a remarkable enhancement of power and reversibility; furthermore, the optimized lithium-sulfur dioxide battery with catalysts achieves outstanding cycle stability for over 450 cycles with 0.2 V polarization. This study highlights the potential promise of lithium-sulfur dioxide chemistry along with the viability of conventional carbonate-based electrolytes in metal-gas rechargeable systems. © The Author(s) 2017
URI
http://pr.ibs.re.kr/handle/8788114/3716
DOI
10.1038/ncomms14989
ISSN
2041-1723
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > Journal Papers (저널논문)
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