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Paper   IPM / CMNL / 16639
Condensed Matter National Laboratory
  Title:   Performance-tuning of PVA-based gel electrolytes by acid/PVA ratio and PVA molecular weight
  Author(s): 
1.  Saeideh Alipoori
2.  Mohammad Mehdi Torkzadeh
3.  Saeedeh Mazinani
4.  Seyed Hamed Aboutalebi
5.  Farhad Sharif
  Status:   Published
  Journal: Springer
  Vol.:  3
  Year:  2021
  Pages:   1-13
  Supported by:  IPM
  Abstract:
The significant breakthroughs of flexible gel electrolytes have attracted extensive attention in modern wearable electronic gadgets. The lack of all-around high-performing gels limits the advantages of such devices for practical applications. To this end, developing a multi-functional gel architecture with superior ionic conductivity while enjoying good mechanical flexibility is a bottleneck to overcome. Herein, an architecturally engineered gel, based on PVA and H3PO4 with different molecular weights of PVA for various PVA/H3PO4 ratios, was developed. The results show the dependence of ionic conductivity on molecular weight and also charge carrier concentration. Consequently, fine-tuning of PVA-based gels through a simple yet systematic and well-regulated strategy to achieve highly ion-conducting gels, with the highest ionic conductivity of 14.75�??±�??1.39 mS cm-1 have been made to fulfill the requirement of flexible devices. More importantly, gel electrolytes possess good mechanical robustness while exhibiting high-elasticity (

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