Nanostructured MgFe2O4 as anode materials for lithium-ion batteries

Electrospun synthesis and lithium storage properties of magnesium ferrite nanofibers

“…Sivakumar [24] and Pan [28] have demonstrated that the first discharge reaction of MgFe 2 O 4 anode is irreversible destruction of the crystal structure that leads to the formation of metal nanoparticles embedded in an amorphous matrix of MgO and Li 2 O. The reaction can be shown as follow: MgFe 2 O 4 + 6Li + + 6e À !…”

“…It is known that a capacity of 134 mAh g À1 can be obtained for 1 Li per formula weight of MgFe 2 O 4 . A total of 8 Li + per formula can react in the initial discharge process of electrospun MgFe 2 O 4 nanofibers electrodes, and a theoretical capacity of 1072 mAh g À1 should be obtained [24,28]. In Fig.…”

“…Recently, MFe 2 O 4 (M = Co, Zn, Ni, Cu, Mg etc) nanocrystals have been explored as anode materials in lithium-ion batteries with high theoretical capacities of over 1000 mAh g À1 , which is much higher than carbonaceous anode materials [6,7,[20][21][22][23][24][25][26][27][28][29][30][31][32][33][34]. Among them, MgFe 2 O 4 has been firstly prepared as anode material for lithium-ion batteries by Sivakumar through high-energy ball milling technique [24]. The sample delivered a high discharge capacity of 1400 mAh g À1 , but the reversible capacity value was markedly decreased to 300 mAh g À1 after 10 cycles.…”

Hydrothermal synthesis and electrochemical performance of Mn-doped V6O13 as cathode material for lithium-ion battery

“…Mn 0.02 V 5.98 O 13 sample has the smallest particle size, and it consists mostly of nano-sized particles, which is one of the reasons for the better performance of Mn 0.02 V 5.98 O 13 . The nano-sized particle can decrease the lithium-ion diffusion and the electron transportation distance which has been testified by other cathode materials [23,24]. EDS analysis and FESEM mapping of V, O, and Mn ions for the Mn 0.02 V 5.98 O 13 sample are shown in Fig.…”

Graphene‐Containing Nanomaterials for Lithium‐Ion Batteries

“…[295][296][297] In pure spinel structures, the divalent and trivalent cations are situated only in tetrahedral and octahedral sites respectively. The opposite is true for pure inverse spinel structures.…”