Enhancing ionic conductivity, mechanical stability and electrochemical properties simultaneously by integrating POSS-PEG13.3 hybrid nanoparticles into PEO-NaClO4 solid polymer electrolytes

Enhancing ionic conductivity, mechanical stability and electrochemical properties simultaneously by integrating POSS-PEG13.3 hybrid nanoparticles into PEO-NaClO4 solid polymer electrolytes

The increasing global energy demand and environmental concerns necessitate the development of sustainable energy storage solutions. Sodium-ion batteries have emerged as a promising alternative to lithium-ion batteries due to the abundance and low cost of sodium. This study investigates the impact of...

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Main Authors: Anji Reddy Polu, Pramod K. Singh, Aseel A. Kareem, Shufeng Song, Serguei V. Savilov, M.Z.A. Yahya, Markus Diantoro, Firdaus Mohamad Hamzah, S.N.F. Yusuf, Faisal Islam Chowdhury
Format: Article
Language:English
Published: Elsevier 2025-06-01
Series:Chemical Physics Impact
Subjects:
POSS-PEG13.3
Ionic conductivity
PEO
NaClO4
Electrochemical stability
Online Access:http://www.sciencedirect.com/science/article/pii/S2667022424003220
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Summary:The increasing global energy demand and environmental concerns necessitate the development of sustainable energy storage solutions. Sodium-ion batteries have emerged as a promising alternative to lithium-ion batteries due to the abundance and low cost of sodium. This study investigates the impact of incorporating hybrid nanoparticles, specifically polyhedral oligomeric silsesquioxane - poly(ethylene glycol) (POSS-PEG13.3), on the performance of polyethylene oxide (PEO) - sodium perchlorate (NaClO4) based solid polymer electrolytes (SPEs). The results demonstrate that the incorporation of POSS-PEG13.3 effectively disrupts the crystallinity of the PEO matrix, as confirmed by X-ray diffraction and differential scanning calorimetry analyses. Consequently, the ionic conductivity of the SPEs increases with increasing POSS-PEG13.3 content, reaching a maximum of 1.02 × 10–4 S/cm at 30 °C for the electrolyte containing 40 wt.% of POSS-PEG13.3. Furthermore, the addition of POSS-PEG13.3 significantly improves the mechanical properties of the SPEs, enhancing their stability and durability. The ionic transference number (tion = 0.988) confirm that ions are the primary charge carriers in these electrolytes. Additionally, linear sweep voltammetry and battery discharge studies indicate a wide electrochemical stability window of 3.32 V, demonstrating the suitability of these SPEs for Na-ion battery applications.
ISSN:2667-0224

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