Three-Dimensional Graphene Foam Supported Fe₃O₄ Lithium Battery Anodes with Long Cycle Life and High Rate Capability

Abstract

Fe3O4 has long been regarded as a promising anode material for lithium ion battery due to its high theoretical capacity, earth abundance, low cost, and nontoxic properties. However, up to now no effective and scalable method has been realized to overcome the bottleneck of poor cyclability and low rate capability. In this article, we report a bottom-up strategy assisted by atomic layer deposition to graft bicontinuous mesoporous nanostructure Fe3O4 onto three-dimensional graphene foams and directly use the composite as the lithium ion battery anode. This electrode exhibits high reversible capacity and fast charging and discharging capability. A high capacity of 785 mAh/g is achieved at 1C rate and is maintained without decay up to 500 cycles. Moreover, the rate of up to 60C is also demonstrated, rendering a fast discharge potential. To our knowledge, this is the best reported rate performance for Fe3O4 in lithium ion battery to date.

Scalable self-growth of Ni@NiO core-shell electrode with ultrahigh capacitance and super-long cyclic stability for supercapacitors

“…[1][2][3][4] Supercapacitors (SCs), also known as electrochemical capacitors, are widely recognized as promising candidates for energy storage devices because these devices have high power density, excellent stability (up to 100 000 cycles) and low maintenance costs. 1,2,4-7 These features make SCs favorable for applications in high-power electronic devices, emergency power supplies and hybrid electric vehicles.…”

Critical Insight into the Relentless Progression Toward Graphene and Graphene‐Containing Materials for Lithium‐Ion Battery Anodes

“…Regarding the progression of the previously developed hybrids, improved specifi c capacity values were reported through the exploitation of 3D graphene matrixes incorporating, for example, SnO 2 , [252][253][254] Fe 3 O 4 , [ 255,256 ] MoS 2 , [ 257,258 ] SnS 2 , [ 259 ] MnO, [ 260 ] TiO 2 [ 261 ] or Si [ 262 ] particles. Indeed, the graphene network appeared to be benefi cial for reducing the material resistance and to improve the mechanical stability of the electrode.…”

Graphene-like carbon sheet/Fe3O4 nanocomposites derived from soda papermaking black liquor for high performance lithium ion batteries

“…More direct evidence for Fe3O4 crystal structure is seen in Fig.2g, showing the well-identified Fe3O4 (311) lattice fringes with a smaller d-spacing of 0.252 nm [28]. Also the HRTEM image (Fig.…”

“…2h) of an individual Fe3O4 nanoparticle displays its superlattice structure with a larger lattice spacing of 0.98 nm [41]. and 43.1° [22][23][24][25][26][27][28][29][30][31] and the diffraction peaks of β-SiC (PDF#49-1623) with a cubic crystal system [42]. The broad peak indicates that its structure has a high degree of disorder.…”

“…The composite anode materials of graphene and Fe3O4 have been recently explored and show enhanced high capacity and excellent cycling performance of LIBs [25][26][27][28][29][30][31]. However, utilization of the active materials.…”