Conductivity enhancement in K+-ion conducting solid polymer electrolyte [PEG : KNO3] and its application as an electrochemical cell

Polu, Anji Reddy; Kareem, Aseel Abdulameer; Kim, Kwangmin; Kim, Dongkyu; Venkanna, Mekala; Rasheed, Hussein Kh.; Kumar, Kanapuram Uday

doi:10.1007/s11814-023-1544-6

Korean J. Chem. Eng.

2023

DOI: 10.1007/s11814-023-1544-6

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Conductivity enhancement in K+-ion conducting solid polymer electrolyte [PEG : KNO3] and its application as an electrochemical cell

Anji Reddy Polu,

Aseel Abdulameer Kareem,

Kwangmin Kim

et al.

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2024

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Cited by 11 publications

References 38 publications

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Melt‐reprocessablelinear low‐density polyethylene/cyclic olefin copolymerblends with low dielectric constant and low thermal expansion

Zhang,

Jiang,

et al. 2024

J of Applied Polymer Sci

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Insulation materials with low dielectric constants, low coefficients of thermal expansion (CTE), low densities, renewability, and low cost are urgently needed in the fields of communication, control and signal cables. Here we report that combining cyclic olefin copolymer (COC) with linear low‐density polyethylene (LLDPE) by melt blending achieves the above goals. The dielectric constant and CTE of LLDPE/COC blends are minimized at 20 wt% COC content, reaching a value of 2.23 at 1000 Hz and 1.21 × 10−4 K−1, respectively. The density of the blend increases by only 1.6% compared with LLDPE, whereas the tensile modulus increases by 56%, which is conducive to the blends to improve mechanical strength while preserving lightweight. The rheological tests show that the zero‐shear viscosity, storage modulus, and loss modulus of the LLDPE/COC blends do not change much compared with pristine LLDPE, maintaining their good melt processability at 160°C. The cyclic rigid structure of COC causes a decrease in CTE, and the increase in free volume between molecular chains is responsible for the reduced dielectric constant. The present work provides a promising route to the design and fabrication of melt‐reprocessable polymer composites with low dielectric constant and low thermal expansion.

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Melt‐reprocessablelinear low‐density polyethylene/cyclic olefin copolymerblends with low dielectric constant and low thermal expansion

Zhang,

Jiang,

et al. 2024

J of Applied Polymer Sci

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Comprehensive Study of PAN‐NaBF₄ Solid Polymer Electrolytes: Insights Into Optical, Structural, Thermal, Electrical, and Electrochemical Properties for Sodium‐Ion Batteries

Venkanna,

Singh,

Rasheed

et al. 2024

Energy Storage

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This research explores the use of solid polymer electrolytes (SPEs) as a conductive medium for sodium ions in sodium‐ion batteries, presenting a possible alternative to traditional lithium‐ion battery technology. The researchers prepare SPEs with varying molecular weight ratios of polyacrylonitrile (PAN) and sodium tetrafluoroborate (NaBF4) using a solution casting method with dimethyl formamide as the solvent. Through optical absorbance measurements, we identified the PAN:NaBF4 (80:20) SPE composition as having the lowest energy band gap value (4.48 eV). This composition also exhibits high thermal stability based on thermogravimetric analysis results. Electrochemical impedance spectroscopy reveals an ionic conductivity of 1.02 × 10−4 S cm−1 for the PAN:NaBF4 (80:20) blend at ambient temperature. Additionally, linear sweep voltammetry demonstrates its good electrochemical stability up to 3.22 V. We assemble a primary sodium‐ion battery using the optimal SPE composition (Na/(PAN + NaBF4)/(I2 + C + electrolyte)). This battery achieves an open‐circuit voltage of 2.83 V and displays promising discharge performance.

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Performance analysis of electrochemical cell using magnesium-doped tamarind gum polymer electrolyte

Saranya,

Vanitha,

Sundaramahalingam

et al. 2024

J Mater Sci: Mater Electron

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Conductivity enhancement in K+-ion conducting solid polymer electrolyte [PEG : KNO3] and its application as an electrochemical cell

Cited by 11 publications

References 38 publications

Melt‐reprocessablelinear low‐density polyethylene/cyclic olefin copolymerblends with low dielectric constant and low thermal expansion

Melt‐reprocessablelinear low‐density polyethylene/cyclic olefin copolymerblends with low dielectric constant and low thermal expansion

Comprehensive Study of PAN‐NaBF₄ Solid Polymer Electrolytes: Insights Into Optical, Structural, Thermal, Electrical, and Electrochemical Properties for Sodium‐Ion Batteries

Performance analysis of electrochemical cell using magnesium-doped tamarind gum polymer electrolyte

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Product

Resources

About

Conductivity enhancement in K+-ion conducting solid polymer electrolyte [PEG : KNO3] and its application as an electrochemical cell

Cited by 11 publications

References 38 publications

Melt‐reprocessablelinear low‐density polyethylene/cyclic olefin copolymerblends with low dielectric constant and low thermal expansion

Melt‐reprocessablelinear low‐density polyethylene/cyclic olefin copolymerblends with low dielectric constant and low thermal expansion

Comprehensive Study of PAN‐NaBF4 Solid Polymer Electrolytes: Insights Into Optical, Structural, Thermal, Electrical, and Electrochemical Properties for Sodium‐Ion Batteries

Performance analysis of electrochemical cell using magnesium-doped tamarind gum polymer electrolyte

Contact Info

Product

Resources

About

Comprehensive Study of PAN‐NaBF₄ Solid Polymer Electrolytes: Insights Into Optical, Structural, Thermal, Electrical, and Electrochemical Properties for Sodium‐Ion Batteries