A corn-inspired structure design for an iron oxide fiber/reduced graphene oxide composite as a high-performance anode material for Li-ion batteries

Abstract

A porous iron oxide fiber/reduced graphene oxide composite with a corn-inspired structure design as a high-performance anode material for li-ion batteries.

Encapsulating MoO2 Nanocrystals into Flexible Carbon Nanofibers via Electrospinning for High-Performance Lithium Storage

“…The first cycle of MoO 2 /C nanofiber membrane electrode shows high charge and discharge capacity (752.5 mAh g −1 and 1054.4 mAh g −1 ) and relatively low coulombic efficiency (71.4%). The capacity loss was caused by the irreversible reactions such as decomposition of the electrolyte and formation of SEI film on the electrode surface [17,18,46]. In the subsequent cycle, the specific capacity curve of the MoO 2 /C nanofiber electrode first decreased and then increased.…”

“…In recent years, metal oxides have attracted extensive attention as advanced electrode materials for LIB application due to their high theoretical specific capacity and excellent chemical stability [17][18][19][20][21][22]. Recently, Zhang et al [23] prepared hierarchical flowerlike MoO 2 @N,P co-doped carbon (NPC) hybrids as sodium-ion battery electrodes, which showed a high reversible capacity (821 mAh g −1 ) after 100 cycles at 100 mA g −1 , and indicated excellent rate capacity and cycling stability.…”

“…Even at a high current density of 1 A g −1 , a capacity of 537 mAh g −1 was still obtained after 600 cycles. These metal oxides/carbon composite exhibited superior electrochemical performance and stability [17,25]. Molybdenum dioxide (MoO 2 ), as an important transition metal oxide, has attracted much attention in recent years because of its relatively low resistivity, high stability and high density [26].…”

Fabrication of Hollow Co3O4 Nanospheres and Their Nanocomposites of CNT and rGO as High‐Performance Anodes for Lithium‐Ion Batteries

“…There is a great interest in developing novel high‐capacity anode materials for LIBs with impressive specific capacity, long cycle life, and high rate capability for next generation high energy density batteries . Transition metal oxides such as Fe 2 O 3 , Fe 3 O 4 , NiO, MnO, CuO, Cu 2 O , CoO, and Co 3 O 4 are promising anode materials with high theoretical capacities, typically two‐times higher than that of the commercial graphite anode (∼ 372 mAh g ‐1 ) . However, lithium uptake/extraction processes cause severe cracking and pulverizing of the electrode during the repeated charge/discharge cycles due to remarkable volume change resulting in a significant capacity loss and poor cycling stability.…”

Synthesis and Electrochemical Performance of Fe2O3 Nanofibers as Anode Materials for LIBs

“…子电池负极材料是影响 LIBs 电化学性能的关键因 素之一。 目前商业化的 LIBs 主要以石墨为负极材料, 但是其理论比容量较低, 仅有 372 mAh/g, 限制了 LIBs 电化学性能的进一步提高 [7][8] 。Fe 2 O 3 由于具有 高比容量(1007 mAh/g)、储量丰富和无毒害性等特 点, 是当前负极材料研究热点之一 [9][10] 。但是, Fe 2 O 3 作为锂离子电池负极材料在锂脱嵌过程中体积会发 生剧烈变化, 导致材料结构崩塌, 继而在集流体上 粉化并脱落, 降低其电化学性能 [11][12][13] 。 静电纺丝技术原理简单, 能够生产出纳米纤维 和无纺布 [14][15][16][17][18] [19][20]…”