Highly conducting corn starch doped ionic liquid solid polymer electrolyte for energy storage devices-RAFM 2022

In this study, a new biopolymer electrolyte (BPE) is successfully developed using corn starch complexed with ammonium iodide (NH4I) as host, and low viscosity ionic liquid 1-Ethyl, 3-Methyl Imidazolium Thiocyanate (EMImSCN), as a plasticizer. This ionic liquid doped BPE shows high ionic conductivity of the order 10−4 S/cm and electrochemical stability window more than 3 V, which is suitable for electrochemical application. The ionic transference number (tion) of 0.98 confirms the system to be predominantly ionic in nature. Fourier transform infrared spectroscopy (FTIR) shows complex nature, while polarized optical microscopy (POM) gives us an idea about the semi-crystalline nature of BPE. Maximum conducting ionic liquid doped BPE sandwiched electric double layer capacitor (EDLC) and dye sensitize solar cell (DSSC) shows efficient performance.

[1]  W. Liu,et al.  Biopolymer-based hydrogel electrolytes for advanced energy storage/conversion devices: properties, applications, and perspectives , 2022, Energy Storage Materials.

[2]  Tejas Sharma,et al.  Ionic liquid (1-ethyl-3-methylimidazolium tricyanomethanide) incorporated Poly (methyl methacrylate) for energy application , 2022, Journal of Molecular Liquids.

[3]  Pramod K. Singh,et al.  Synthesis of porous carbon from a PVC polymer and its application in supercapacitors , 2022, Materials Advances.

[4]  C. Chia,et al.  Bio and non‐bio materials‐based quasi‐solid state electrolytes in DSSC : A review , 2021, International Journal of Energy Research.

[5]  K. H. Kamarudin,et al.  Ion Transport Study in Corn Starch-NaHSO3 Based Polymer Electrolytes , 2021 .

[6]  M. F. Shukur,et al.  Conductivity, structural and thermal properties of corn starch-lithium iodide nanocomposite polymer electrolyte incorporated with Al2O3 , 2021, Journal of Polymer Research.

[7]  Pramod K. Singh,et al.  Ionic liquid impregnated Allium cepa peel for supercapacitor application , 2021 .

[8]  Pramod K. Singh,et al.  Waste plastics derived graphene nanosheets for supercapacitor application , 2021 .

[9]  Pramod K. Singh,et al.  Binder-free reduced graphene oxide as electrode material for efficient supercapacitor with aqueous and polymer electrolytes , 2020 .

[10]  S. Ramesh,et al.  Electrical, thermal, and structural studies on highly conducting additive-free biopolymer electrolytes for electric double-layer capacitor application , 2019, Ionics.

[11]  X. Crispin,et al.  Printable acid-modified corn starch as non-toxic, disposable hydrogel-polymer electrolyte in supercapacitors , 2019, Applied Physics A.

[12]  Pramod K. Singh,et al.  Quantitative analysis of ion transport mechanism in biopolymer electrolyte , 2019, Optics & Laser Technology.

[13]  Pramod K. Singh,et al.  Electrical, optical and electrophotochemical studies on agarose based biopolymer electrolyte towards dye sensitized solar cell application , 2017 .