A high-energy-density lithium-oxygen battery based on a reversible four-electron conversion to lithium oxide

Autor:	Linda F. Nazar, Chun Xia, Chun Yuen Kwok
Rok vydání:	2018
Předmět:	Multidisciplinary Materials science Inorganic chemistry Oxide chemistry.chemical_element 02 engineering and technology Overpotential 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences Redox 0104 chemical sciences chemistry.chemical_compound chemistry Lithium Lithium oxide 0210 nano-technology Faraday efficiency Lithium peroxide
Zdroj:	Science. 361:777-781
ISSN:	1095-9203 0036-8075
DOI:	10.1126/science.aas9343
Popis:	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
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1fd357e0d01f9cb2637851ba8fb3039 https://doi.org/10.1126/science.aas9343 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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