Carbon coated Si nanoparticles anchored to graphene sheets with excellent cycle performance and rate capability for Lithium-ion battery anodes

Facilely synthesized LiFePO4nanocomposites with excellent electrochemical properties as cathodes for lithium ion batteries

“…In addition, the constant phase element (CPE1) and Warburg impedance W1 are part of an analog circuit. 41–43 As shown in Fig. 5b, we clearly notice that the R ct of the LFP-0 sample was 387.25 Ω.…”

Toward the Improvement of Silicon-Based Composite Electrodes via an In-Situ Si@C-Graphene Composite Synthesis for Li-Ion Battery Applications

“…In this context of new LiB electrode formulation [ 28 ], the use of graphene and graphene derivatives in association with silicon inside electrode formulations is under intense study [ 29 , 30 , 31 , 32 , 33 ]. So, graphene has been used as a buffer layer co-formally covering Si NPs [ 32 , 33 , 34 ] or combined with Si NPs modified chemically with molecular ligands, sometimes calcinated afterward [ 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. Graphene sheets have also been added as a conductive additive with a two-dimensional (2D) morphology preserving contact between Si NPs and Si@C NPs [ 33 , 36 , 38 , 40 , 42 , 43 ].…”

“…So, graphene has been used as a buffer layer co-formally covering Si NPs [ 32 , 33 , 34 ] or combined with Si NPs modified chemically with molecular ligands, sometimes calcinated afterward [ 35 , 36 , 37 , 38 , 39 , 40 , 41 ]. Graphene sheets have also been added as a conductive additive with a two-dimensional (2D) morphology preserving contact between Si NPs and Si@C NPs [ 33 , 36 , 38 , 40 , 42 , 43 ]. More recently, the 3D architecturation of the active material has also been applied to materials containing graphene.…”

TiO2/Reduced‐Graphene‐Oxide Double‐Layer‐Coated SiO as High‐Performance Anode for Lithium‐Ion Batteries

“…Carbon coating on the surface of SiO was also developed to buffer the volume expansion while enhancing the electrical conductivity of SiO electrodes. [21][22][23] Prelithiation technology was reported to DOI: 10.1002/ente.202301053 Silicon monoxide (SiO) is promising to be anode materials for next-generation lithium-ion batteries owing to its high capacity, but its application is hindered by the poor electrical conductivity, large volume expansion (≈150%) caused by the lithiation, and low lithium-ion transport efficiency. Herein, TiO 2 /reduced graphene oxide (rGO) double-layer-coating strategy is proposed to solve the earlier issues.…”