TY - JOUR
T1 - Effect of sonochemistry
T2 - Li- and Mn-rich layered high specific capacity cathode materials for Li-ion batteries
AU - Sivakumar, P.
AU - Nayak, Prasant Kumar
AU - Grinblat, Judith
AU - Perkas, Nina
AU - Markovsky, Boris
AU - Aurbach, Doron
AU - Gedanken, Aharon
N1 - Publisher Copyright:
© 2016, Springer-Verlag Berlin Heidelberg.
PY - 2016/6
Y1 - 2016/6
N2 - Li- and Mn-rich layered Li1.2Ni0.13Co0.13Mn0.54O2 cathode material was synthesized using sonochemical method followed by annealing at 700, 800, and 900 °C for 10 h. The material was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), Raman spectroscopy, and electrochemical techniques. Its performance as a cathode material for Li-ion batteries was examined. With the sample annealed at 900 °C, an initial specific capacity of 240 mAh g−1 was obtained, which decreased to 215 mAh g−1 after 80 cycles, thus retaining about 90 % of its initial capacity. In contrast, samples annealed at lower temperatures exhibited lower capacity retention upon cycling. Thus, the final annealing temperature was found to have a significant effect on the electrochemical stability of this material in terms of capacity, average voltage, and rate capability. The advantage of this synthesis, which includes a sonochemical stage, compared with a conventional co-precipitation synthesis, was also confirmed.
AB - Li- and Mn-rich layered Li1.2Ni0.13Co0.13Mn0.54O2 cathode material was synthesized using sonochemical method followed by annealing at 700, 800, and 900 °C for 10 h. The material was characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), transmission electron microscopy (TEM), Raman spectroscopy, and electrochemical techniques. Its performance as a cathode material for Li-ion batteries was examined. With the sample annealed at 900 °C, an initial specific capacity of 240 mAh g−1 was obtained, which decreased to 215 mAh g−1 after 80 cycles, thus retaining about 90 % of its initial capacity. In contrast, samples annealed at lower temperatures exhibited lower capacity retention upon cycling. Thus, the final annealing temperature was found to have a significant effect on the electrochemical stability of this material in terms of capacity, average voltage, and rate capability. The advantage of this synthesis, which includes a sonochemical stage, compared with a conventional co-precipitation synthesis, was also confirmed.
KW - High capacity
KW - Li and Mn rich cathode materials
KW - Li-ion battery
KW - Nanoparticle
KW - Sonochemistry
UR - http://www.scopus.com/inward/record.url?scp=84961208150&partnerID=8YFLogxK
U2 - 10.1007/s10008-016-3176-9
DO - 10.1007/s10008-016-3176-9
M3 - Article
AN - SCOPUS:84961208150
SN - 1432-8488
VL - 20
SP - 1683
EP - 1695
JO - Journal of Solid State Electrochemistry
JF - Journal of Solid State Electrochemistry
IS - 6
ER -