One-Pot Facile Synthesis of Double-Shelled SnO2Yolk-Shell-Structured Powders by Continuous Process as Anode Materials for Li-ion Batteries

Autor:	Young Jun Hong, Yun Chan Kang, Mun Yeong Son
Rok vydání:	2013
Předmět:	Battery (electricity) Materials science Mechanical Engineering Inorganic chemistry Oxide chemistry.chemical_element Electrolyte Electrochemistry Lithium-ion battery Anode chemistry.chemical_compound chemistry Chemical engineering Mechanics of Materials Electrode General Materials Science Lithium
Zdroj:	Advanced Materials. 25:2279-2283
ISSN:	0935-9648
Popis:	Hollow and yolk-shell metal oxide powders used as energy storage materials exhibit good electrochemical properties at high current density because of their shortened diffusion length and increased amount of contact area between the electrolyte and the electrode for Li + insertion/extraction. [ 1–25 ] Although various types of hollow-structured oxide materials have been studied as anode and cathode electrode materials for lithium secondary batteries, [ 13–25 ] the hollow-structured powders cannot be readily applied as battery materials because of their low energy densities due to low tab density. The disadvantages of the hollow materials can be overcome using core@void@shellconfi gured yolk-shell-structured powder particles. The core of such yolk-shell-structured powder particles will improve the rate capability as well as the energy density of the powders by increasing the weight fraction of the electrochemically active component. [ 12 , 15 ]
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3ede7567fd184c31c9486fde575875d6 https://doi.org/10.1002/adma.201204506 Zobrazit plný text záznamu Plný text