In situ synthesis of carbon fiber-supported SiO_x as anode materials for lithium ion batteries

Abstract

The profiled carbon fiber-supported SiOx LIB anodes with abundant capillary channels and high contact area can improve lithium-ion transport and buffer the SiOx volume changes, resulting in the improvement of the cell performance.

Silica‐Derived Nanostructured Electrode Materials for ORR, OER, HER, CO2RR Electrocatalysis, and Energy Storage Applications: A Review**

“…Several silica-derived nanostructured electrode materials (SDNEMs) have been reported for lithium-ion batteries (LIB, Table 12) such as lithium silicate (Li x S), [156] silicon nanotube, [157] SiO x À C, [158] SiOx/carbon fiber, [159] SiO x / CNT, [160] nickel (Ni)-silicate, [161] cobalt (Co) orthosilicate (Co 2 SiO 4 ), [162] Fayalite (Fe 2 SiO 4 ), [163] Fe 2 SiO 4 /C, [164] Fe 3 O 4 @Fe 2 SiO 4 , [165] Ni 2 SiO 4 , [166] Si-embedded SiO 2 , [167] SiO x / polyaniline/Ag, [168] MnO/Mn 2 SiO 4 , [169] Mn 2 SiO 4 /CNT, [170] and MnSiO 3 /C. [171] The low intrinsic conductivity and high-volume fluctuation during cycling limit the electrochemical performance of silicon oxides (SiO x ) as Li-ion battery anodes.…”

Boosting the overall specific capacity of SiO electrodes for lithium-ion batteries using a multifunctional carbon cloth current collector

“…Besides, the redox peaks at 0.36, 0.51, and 0.15 V represent the reversible lithiation and delithiation reactions of SiO. 35 Moreover, aside from the normal growth of the electrode volume (Fig. S6a, ESI †), the CV current also increases with the SiO loading, implying that SiO can make an important contribution to the electrode capacity output.…”

Facile mechanochemical synthesis of non-stoichiometric silica-carbon composite for enhanced lithium storage properties

“…composite electrode after different cycles. The semicircle in the high-frequency region can be assigned to the charge transfer resistance (Rct), and the line in the low-frequency region is attributed to the diffusion impedance (Warburg impedance) 38 . Due to the overlapping between the SEI film and the charge transfer impedance, a depressed semicircle in the high-frequency is presented range after several cycles 39,40 .…”