The significance of studying silicon oxycarbide energy storage materials

Why are silicon oxycarbides a promising material?

Polymer-derived silicon oxycarbides (SiOC) are considered as promising materials because of their high capacity, up to 600 mAh g−1, excellent capability upon high charge-discharge current, low price and good availability of preceramic precursors [ , , , ].

Are silicon oxycarbide ceramics reversible storage of lithium ions?

The electrochemical properties of silicon oxycarbide (SiOC) ceramics with respect to reversible storage of lithium ions have been studied in the middle of the 1990s for the first time [4, 8].

Is silicon oxycarbide a potential anode material for Li-ion batteries?

We report here on the synthesis and characterization of silicon oxycarbide (SiOC) in view of its application as a potential anode material for Li-ion batteries. SiOC ceramics are obtained by pyrolysis of various polysiloxanes synthesized by sol–gel methods.

Can silicon oxycarbides improve lithiation of silicon anodes?

However, the large volume expansion of silicon anodes hinders its commercial utilization. As an alternative, silicon oxycarbides (SiOCs) mitigate the expansion of anodes during lithiation, and the synthesis of SiOC beads from silanes is rather simple and at a low cost.

Can silicon oxycarbide be substituted for crystalline Si-based anodes?

Silicon oxycarbide (SiOC) materials, which are synthesized using a polymer-derived ceramic (PDC) route, have been investigated as a substitute anode material for crystalline Si-based anodes. The specific capacity of these SiOC materials ranges from 200–1300 mA h g −1.

Are silicon oxycarbide based electrodes practical?

The practical application of silicon oxycarbide (SiOC) based electrodes has been restricted by poor rate performance and under capacity retention on account of sluggish electronic and ionic transport of the SiOC glass.