Li-ion battery anode properties of Si-carbon nanocomposites fabricated by high energy multiring-type mill

Li-ion battery anode properties of Si-carbon nanocomposites fabricated by high energy multiring-type mill

By combining two successive dry-milling processes, using a multiring mill and a pin-type disintegrator, downsizing of Si powders was achieved to 50 nm crystallites and their aggregated mean volume diameter ca. 100 nm, with the top size less than 400 nm. These Si nanoparticles were applied to obtain...

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Veröffentlicht in:Solid state ionics 2004-08, Vol.172 (1), p.33-37
Hauptverfasser: Kim, Bong-Chull, Uono, Hiroyuki, Sato, Tomohiro, Fuse, Tooru, Ishihara, Tadashi, Senna, Mamoru
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Sprache:eng
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Anode
High energy mill
Li-ion battery
Nanosized Si
Si/C composite
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container_end_page 37
container_issue 1
container_start_page 33
container_title Solid state ionics
container_volume 172
creator Kim, Bong-Chull
Uono, Hiroyuki
Sato, Tomohiro
Fuse, Tooru
Ishihara, Tadashi
Senna, Mamoru
description By combining two successive dry-milling processes, using a multiring mill and a pin-type disintegrator, downsizing of Si powders was achieved to 50 nm crystallites and their aggregated mean volume diameter ca. 100 nm, with the top size less than 400 nm. These Si nanoparticles were applied to obtain Si/carbon nanocomposites. The composite exhibits better cyclability when they were applied to Li-ion battery anode, compared with conventional micron-sized Si/carbon systems. Mechanisms for improved anode performance were explained in terms of the downsizing of Si in the process of composite fabrication.
doi_str_mv 10.1016/j.ssi.2004.02.028
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subjects Anode
High energy mill
Li-ion battery
Nanosized Si
Si/C composite
title Li-ion battery anode properties of Si-carbon nanocomposites fabricated by high energy multiring-type mill
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