Affiliation:
1. Department of Chemistry and the Waterloo Institute of Nanotechnology, University of Waterloo, Waterloo, Ontario N2L 3G1, Canada.
Abstract
An elevated lithium battery
Batteries based on lithium metal and oxygen could offer energy densities an order of magnitude larger than that of lithium ion cells. But, under normal operation conditions, the lithium oxidizes to form peroxide or superoxide. Xia
et al.
show that, at increased temperatures, the formation of lithium oxide is favored, through a process in which four electrons are transferred for each oxygen molecule (see the Perspective by Feng
et al.
). Reversible cycling is achieved through the use of a thermally stable inorganic electrolyte and a bifunctional catalyst for both oxygen reduction and evolution reactions.
Science
, this issue p.
777
; see also p.
758
Funder
U.S. Department of Energy
Government of Canada
Publisher
American Association for the Advancement of Science (AAAS)
Cited by
348 articles.
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