Porous ZnMn2O4 microspheres as a promising anode material for advanced lithium-ion batteries

Electrospun synthesis and lithium storage properties of magnesium ferrite nanofibers

“…Since the early 1990 s, lithium-ion batteries have continued to capture scientific and commercial interest for use in portable electronics and electric vehicles. However, great challenges still remain in this field [3,4]. Carbonaceous material is widely used as anode material in lithium-ion batteries, duo to its low cost and long cycle life, but limited to its low theoretical capacity (372 mAh g À1 ) [5][6][7].…”

Synthesis and electrochemical properties of ZnMn 2 O 4 anode for lithium-ion batteries

“…The first discharge process for the R-ZMO and M-ZMO electrodes features one clear voltage plateau for both samples at approximately 0.4 V, and the initial discharge specific capacity of the R-ZMO and M-ZMO electrodes is 1133 mAh g -1 and 1199 mAh g -1 , respectively, which can be attributed to the storage of 10.1 mol and 10.7 mol of Li per mole of ZnMn2O4. Hence, the specific capacity of the initial discharge is higher than the theoretical value (1024 mAh g -1 , storage and cycling of 9 mol of Li per mole of ZnMn2O4) [30]. The extra specific capacity can be explained as due to the formation of a solid electrolyte interphase (SEI) layer [32].…”

“…In order to minimize the surface energy, primary particles of the ZnCO3-MnCO3 complex will aggregate together under the action of surface tension and form microspheres. [30] During thermal treatment, ZnMn2O4 microspheres will be synthesized. The crystal structure of the as-prepared ZMO is shown in Fig.…”

Hollow SnO2@Co3O4 core–shell spheres encapsulated in three-dimensional graphene foams for high performance supercapacitors and lithium-ion batteries

“…Especially, complex oxides of transition metals [19], such as ZnMn 2 O 4 [20], NiCo 2 O 4 [21], ZnCo 2 O 4 [22], Fe 2 O 3 eCo 3 O 4 [23], SnO 2 eCo 3 O 4 [24], Co 3 O 4 @MnO 2 [25], have attracted much attention for their synergistic effect in enhancement of reversible capacity, structural stability, and electrical conductivity. However, most transition metal oxides and complex oxides show poor rate capability and cycling performances because of their low conductivity and large volume expansion/contraction during the longterm charge/discharge cycling.…”