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Nanotechnology enabled rechargeable Li-SO2 batteries: another approach towards post-lithium-ion battery systems

Title
Nanotechnology enabled rechargeable Li-SO2 batteries: another approach towards post-lithium-ion battery systems
Author
김한수
Keywords
ORDERED MESOPOROUS CARBON; LI-O-2 BATTERIES; AIR BATTERIES; PERFORMANCE; CATHODE; ELECTROLYTE; OXYGEN; NANOCONFINEMENT; ARCHITECTURE; CATALYST
Issue Date
2015-10
Publisher
ROYAL SOC CHEMISTRY
Citation
ENERGY & ENVIRONMENTAL SCIENCE, v. 8, NO 11, Page. 3173-3180
Abstract
Extensive research efforts have been devoted to the development of alternative battery chemistry to replace the current technology of lithium-ion batteries (LIBs). Here, we demonstrate that the Li-SO2 battery chemistry, already established 30 years ago, has considerable potential to be regarded as a candidate for post-LIBs when appropriate nanotechnology is exploited. The recently developed nanostructured carbon materials greatly improve the battery performances of Li-SO2 cells, including a reversible capacity higher than 1000 mA h g(-1) with a working potential of 3 V and excellent cycle performance over 150 cycles, and provide a theoretical energy density of about 651 W h kg(-1), which is about 70% higher than that of the currently used LIBs. The nanostructured carbon cathodes offer not only an enlarged active surface area, but also a mechanical buffer to accommodate insulating discharge products upon discharge. Considering the other outstanding properties of the SO2-based inorganic electrolyte, such as non-flammability and significantly higher ionic conductivities, wisely selected nanotechnology renders the Li-SO2 battery chemistry a very promising approach towards the development of a post-LIB system.
URI
http://pubs.rsc.org/en/Content/ArticleLanding/2015/EE/C5EE01659B#!divAbstracthttp://hdl.handle.net/20.500.11754/27968
ISSN
1754-5692; 1754-5706
DOI
10.1039/C5EE01659B
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ENERGY ENGINEERING(에너지공학과) > Articles
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