Silicon Oxycarbide Micro and Nanostructured Electrodes for Electrochemical Energy Storage

Reference Presenter Authors
18-018 Gurpreet Singh Singh, G.(Kansas State University); Colombo, P.(Università degli Studi di Padova); Francin, G.(Università degli Studi di Padova); Cuccato, R.(Università degli Studi di Padova); Mukherjee, S.(Kansas State University); Abass, M.(Kansas State University); Molecular precursor derived ceramics (PDCs) have garnered intense research interest as potential standalone as well as composite electrode materials for rechargeable alkali metal-ion batteries and supercapacitors. PDC based electrodes offer high surface area, improved electrical conductivity by heteroatom modification, and mechanical toughness along with added value of mass production. Here, we will present data on recent success in direct fabrication of self-standing molecular precursor-derived silicon oxycarbide (SiOC) ceramic battery and supercapacitor electrodes by two different routes--electrospinning and additive manufacturing. We will show that micro and nano-structuring of PDCs is an effective strategy in improving PDC’s electrochemical cycleability toward alkali metal ions and first cycle efficiency. In addition, we will discuss the effect of PDC chemical interfacing with graphene on electrode’s electrical conductivity and capacitance.
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