Electrochemistry
Online ISSN : 2186-2451
Print ISSN : 1344-3542
ISSN-L : 1344-3542
Articles
Li/Na Storage Properties of Disordered Carbons Synthesized by Mechanical Milling
Soma SHIMIZUHongahally Basappa RAJENDRARyuta WATANUKINaoaki YABUUCHI
著者情報
ジャーナル オープンアクセス

2019 年 87 巻 5 号 p. 276-280

詳細
抄録

Impact of structural disorder induced by mechanical milling on electrochemical properties of carbonaceous materials is systematically examined. Carbonaceous materials with different structural disorder are prepared by mechanical milling with different rotation speeds. Thus prepared carbons show sloping voltage profiles in Li/Na cells, which resemble those of soft carbons. The disordered carbon material prepared at 600 rpm shows a reversible capacity of >500 mA h g−1 in a Li cell. In addition, the disordered carbon also delivers 200 mA h g−1 in a Na cell with high Coulombic efficiency for continuous cycles. Heat treatment of the disordered carbon results in the formation of hard carbon with nanopores, and thus Li/Na storage properties are significantly changed.

著者関連情報
© 2019 The Electrochemical Society of Japan
前の記事 次の記事
feedback
Top