Publications by authors named "Nahid Kaisar"
Electrochemical Performance of Orthorhombic CsPbI Perovskite in Li-Ion Batteries.
Materials (Basel)
September 2021
Article Synopsis
- A facile method was used to create CsPbI as an anode material for Li-ion batteries, confirmed to have an orthorhombic phase at room temperature through X-ray data.
- The material exhibits a nanorod-like structure and contains strained bonds in its PbI octahedral units, with XPS analysis revealing the presence of Cs, Pb, and I elements.
- The battery shows a promising initial discharge capacity that increases over cycles, indicating δ-CsPbI's viability for future applications in Li-ion batteries despite some performance decline after extensive cycles.
Dissolution of lithium polysulfide (LiPS) into the electrolyte during discharging, causing shuttling of LiPS from the cathode to the lithium (Li) metal, is mainly responsible for the capacity decay and short battery life of lithium-sulfur batteries (LSBs). Herein, we designed a separator comprising polypropylene (PP) coated with MoO3 nanobelts (MNBs), prepared through facile grinding of commercial MoO3 powder. The formation of Li2Sn-MoO3 during discharging inhibited the polysulfide shuttling; during charging, Li passivated LixMoO3 facilitated ionic transfer during the redox reaction by decreasing the charge transfer resistance.
View Article and Find Full Text PDFDespite issues related to dendrite formation, research on Li metal anodes has resurged because of their high energy density. In this study, graphene oxide (GO) layers are decorated onto Li metal anodes through a simple process of drop-casting and spray-coating. The self-assembly of GO is exploited to synthesize coatings having compact, mesoporous, and macroporous morphologies.
View Article and Find Full Text PDF