title: Ultrathin nanosheets of Li2MSiO4 (M = Fe, Mn) as high-capacity Li-ion battery electrode.
abstract: Novel ultrathin Li(2)MnSiO(4) nanosheets have been prepared in a rapid one pot supercritical fluid synthesis method. Nanosheets structured cathode material exhibits a discharge capacity of ~340 mAh/g at 45 ± 5 °C. This result shows two lithium extraction/insertion performances with good cycle ability without any structural instability up to 20 cycles. The two-dimensional nanosheets structure enables us to overcome structural instability problem in the lithium metal silicate based cathode materials and allows successful insertion/extraction of two complete lithium ions.
authors.affiliation: Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Sendai 980-8577, Japan. dineshrangappa@gmail.com
authors.forename: Dinesh
authors.initials: D
authors.lastname: Rangappa
authors.forename: Kempaiah Devaraju
authors.initials: KD
authors.lastname: Murukanahally
authors.forename: Takaaki
authors.initials: T
authors.lastname: Tomai
authors.forename: Atsushi
authors.initials: A
authors.lastname: Unemoto
authors.forename: Itaru
authors.initials: I
authors.lastname: Honma
mesh_terms: D011211:Electric Power Supplies; D004566:Electrodes; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007477:Ions; D008094:Lithium / Q000737:chemistry*; D018020:Lithium Compounds / Q000737:chemistry*; D008345:Manganese / Q000737:chemistry*; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D010087:Oxides / Q000737:chemistry*; D010316:Particle Size; D013431:Sulfates / Q000737:chemistry*
chemical_list: D007477:Ions; D018020:Lithium Compounds; D008567:Membranes, Artificial; D010087:Oxides; D013431:Sulfates; C488552:lithium manganese oxide; D008345:Manganese; C054097:lithium sulfate; D008094:Lithium