Atomic Layer Deposited MoS 2 as a Carbon and Binder Free Anode in Li-ion Battery

Autor:	Shaibal K. Sarkar, Sagar Mitra, Uttam Kumar Sen, Dip K. Nandi, Devika Choudhury
Rok vydání:	2014
Předmět:	chemistry.chemical_compound Atomic layer deposition chemistry General Chemical Engineering Electrochemistry Analytical chemistry Quartz crystal microbalance Fourier transform infrared spectroscopy Layer (electronics) Molybdenum hexacarbonyl Anode Amorphous solid
Zdroj:	Electrochimica Acta. 146:706-713
ISSN:	0013-4686
DOI:	10.1016/j.electacta.2014.09.077
Popis:	Molybdenum sulfide is deposited by atomic layer deposition (ALD) using molybdenum hexacarbonyl and hydrogen sulfide. Film growth is studied using in-situ quartz crystal microbalance, ex-situ X-ray reflectivity and ellipsometry. Deposition chemistry is further investigated with in-situ Fourier transform infrared spectroscopy. Self-limiting nature of the reaction is observed, typical of ALD. Saturated growth rate of 2.5 A per cycle at 170 °C is obtained. As-deposited films are found amorphous in nature. As-grown films are tested as lithium-ion battery anode under half cell configuration. Electrochemical charge-discharge measurements demonstrate a stable cyclic performance with good capacity retention. Discharge capacity of 851 mAh g −1 is obtained after 50 cycles which corresponds to 77% of capacity retention of the initial capacity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::323c5f39e6e554e19250838be15d1657 https://doi.org/10.1016/j.electacta.2014.09.077 Zobrazit plný text záznamu Full Text from ScienceDirect