A study of the effects of synthesis conditions on Li(5)FeO(4)/carbon nanotube composites

Li(5)FeO(4)/carbon nanotube (LFO/CNT) composites composed of sub-micron sized LFO and a nanocarbon with high electrical conductivity were successfully synthesized for the use as lithium ion predoping source in lithium ion cells. The phase of LFO in the composite was found to be very sensitive to the...

Descripción completa

Detalles Bibliográficos
Autores principales: Lee, Suk-Woo, Kim, Hyun-Kyung, Kim, Myeong-Seong, Roh, Kwang Chul, Kim, Kwang-Bum
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5396188/
https://www.ncbi.nlm.nih.gov/pubmed/28422146
http://dx.doi.org/10.1038/srep46530
Descripción
Sumario:Li(5)FeO(4)/carbon nanotube (LFO/CNT) composites composed of sub-micron sized LFO and a nanocarbon with high electrical conductivity were successfully synthesized for the use as lithium ion predoping source in lithium ion cells. The phase of LFO in the composite was found to be very sensitive to the synthesis conditions, such as the heat treatment temperature, type of lithium salt, and physical state of the precursors (powder or pellet), due to the carbothermic reduction of Fe(3)O(4) by CNTs during high temperature solid state reaction. Under optimized synthesis conditions, LFO/CNT composites could be synthesized without the formation of impurities. To the best of our knowledge, this is the first report on the synthesis and characterization of a sub-micron sized LFO/CNT composites.

Ejemplares similares