|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||Energy Technologies and CO2 Management Symposium
||Electrified Layered Organic-inorganic Hybrids for Capacitive Storage
||Da-Wei Wang, Kefeng Xiao, Huabo Liu, Jiaxing Liang
|On-Site Speaker (Planned)
We report the recent discovery of the fast ion intercalation in a new type two-dimensional organic-inorganic hybrid structure, and the fine molecular tailoring of the interlayer chemistry. A room-temperature self-assembly procedure was developed to produce a new 2D hybrid structure with expanded periodic stacking distance which is also highly solvated. The solvated large gallery allows the swift ion storage. This hybrid 2D structure consists of conductive polymer nanoribbons corss-linked by inorganic tungstate molecules. A simple solvent-exchange process enables the use of this material for aqueous or non-aqueous energy storage, indicating self-adaptive properties and automated responses to electrolyte wetting in electrochemical devices. Combining a series of electrochemical and spectroscopic methods, we identified the double layer dominant interface charging mechanism in this material, and also determined the stable electrochemical window. Based on those findings, we are able to design fast intercalation electrodes to achieve large volumetric performance in an asymmetric supercapacitor.