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Nakayama Masaharu

Affiliate Master Yamaguchi University

Electrochemical synthesis of birnessite-type layered manganese oxides for rechargeble lithium batteries

Journal of power sources Volume 179 Issue 1 Page 361-366
published_at 2008-04
Title
Electrochemical synthesis of birnessite-type layered manganese oxides for rechargeble lithium batteries
Creators Nakayama Masaharu
Creators Kanaya Taku
Creators Lee Jong-Won
Creators Popov Branko N.
Creator Keywords
birnessite electrodeposition layered structure manganese oxide lithium battery
Layered manganese dioxide (MnO_2) films intercalated with Li^+, Na^+ or Mg^<2+> ions were synthesized by a one-step electrochemical method. The electrodeposition was potentiostatically performed by applying an anodic potential of 1.0 V vs. Ag/AgCl in an aqueous MnSO_4 solution containing a perchlorate salt of the cation. The electrodeposited oxide films have a birnessite-type layered structure with alkali cations and water molecules between manganese oxide layers. The galvanostatic charge-discharge experiments performed in 1 M LiPF_6-DME/PC solution indicated that the Mg_<2+>-intercalated MnO_2 electrode exhibits an initial discharge capacity as large as 140 mAh g^<-1> and it shows a better capacity retention during cycling as compared with the Li^+- or Na^+-intercalated MnO_2 electrode.
Languages eng
Resource Type journal article
Publishers Elsevier
Date Issued 2008-04
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0378-7753
[NCID]AA00705373
info:doi/10.1016/j.jpowsour.2007.12.075
[isVersionOf] [URI]http://www.sciencedirect.com/science/journal/03787753
Schools 大学院理工学研究科(工学)