Sonochemical synthesis of LiNi0.5Mn1.5O4 and its electrochemical performance as a cathode material for 5 V Li-ion batteries.
LiNi0.5Mn1.5O4 was synthesized as a cathode material for Li-ion batteries by a sonochemical reaction followed by annealing, and was characterized by XRD, SEM, HRTEM and Raman spectroscopy in conjunction with electrochemical measurements. Two samples were prepared by a sonochemical process, one without using glucose (sample-S1) and another with glucose (sample-S2). An initial discharge specific capacity of 130 mA h g(-1) is obtained for LiNi0.5Mn1.5O4 at a relatively slow rate of C/10 in galvanostatic charge-discharge cycling. The capacity retention upon 50 cycles at this rate was around 95.4% and 98.9% for sample-S1 and sample-S2, respectively, at 30°C.
Department of Chemistry, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel.
P
P
Sivakumar
Department of Chemistry, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel.
Prasant Kumar
PK
Nayak
Department of Chemistry, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel.
Boris
B
Markovsky
Department of Chemistry, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel.
Doron
D
Aurbach
Department of Chemistry, Institute of Nanotechnology and Advanced Materials, Bar-Ilan University, Ramat-Gan 52900, Israel; National Cheng Kung University, Department of Materials Science & Engineering, Tainan 70101, Taiwan. Electronic address: gedanken@mail.biu.ac.il.
Aharon
A
Gedanken
5V cathodes; Electrochemical properties; Li-ion batteries; LiNi(0.5)Mn(1.5)O(4); Sonochemical synthesis; Spinel