TY - JOUR
T1 - Fabrication of Ti3+ doped TiO2 coated Mn3O4 nanorods with voids and channels for lithium storage
AU - Wang, Mingyue
AU - Huang, Ying
AU - Zhang, Na
AU - Zhu, Yade
AU - Zhang, Hongming
AU - Kim, Jang Kyo
N1 - Publisher Copyright:
© 2019 Elsevier B.V.
PY - 2019/8/15
Y1 - 2019/8/15
N2 - Lithium-ion batteries have gained great recognition in commercialization due to their high energy density. However, they are still suffered from the limitation of capacity fading and short lifetime. In this study, we report a rational synthesis of yolk-shell structure Ti3+ doped TiO2 coated Mn3O4 nanorods with long-term cycles and an ever-increasing trend of specific capacities. The strong interaction between the Ti3+ doped TiO2 shell and Mn3O4 nanorods not only can be adapted for large volume expansion during repeated lithiation and delithiation processes, but also produces a dramatic synergistic effect of improved reaction kinetics by providing more channels for lithium ions/electrons transportation and enhancing the stability and mechanical integrity of the solid electrolyte interphase film. The unique characteristics contribute to achieving a high reversible capacity, superior cyclic stability and competitive rate capability. After 400 cycles, the electrode possessed a superior reversible capacity of 1487.9 mAh g−1 with a capacity retention of 81.67%. The unique electrode shows a bright prospects applied for lithium-ion batteries.
AB - Lithium-ion batteries have gained great recognition in commercialization due to their high energy density. However, they are still suffered from the limitation of capacity fading and short lifetime. In this study, we report a rational synthesis of yolk-shell structure Ti3+ doped TiO2 coated Mn3O4 nanorods with long-term cycles and an ever-increasing trend of specific capacities. The strong interaction between the Ti3+ doped TiO2 shell and Mn3O4 nanorods not only can be adapted for large volume expansion during repeated lithiation and delithiation processes, but also produces a dramatic synergistic effect of improved reaction kinetics by providing more channels for lithium ions/electrons transportation and enhancing the stability and mechanical integrity of the solid electrolyte interphase film. The unique characteristics contribute to achieving a high reversible capacity, superior cyclic stability and competitive rate capability. After 400 cycles, the electrode possessed a superior reversible capacity of 1487.9 mAh g−1 with a capacity retention of 81.67%. The unique electrode shows a bright prospects applied for lithium-ion batteries.
KW - Lithium-storage performance
KW - Ti doped
KW - Transition metal oxides
KW - Yolk-shell structure
UR - http://www.scopus.com/inward/record.url?scp=85063886055&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2019.04.023
DO - 10.1016/j.cej.2019.04.023
M3 - 文章
AN - SCOPUS:85063886055
SN - 1385-8947
VL - 370
SP - 1425
EP - 1433
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
ER -