Development of flexible and stretchable PEO/PVP/LiTFSI/BaTiO3 electrolytes for lithium ion-conducting device technologies: exploration of nanofiller effect on the promising properties

Unveiling the Synergy of Polymer–Salt Compositions for Properties Enhancement of Solid Polymer Electrolytes Based on PEO/PVP Blend Polymer Matrix and LiTFSI Dopant Salt

“…A variety of semicrystalline and amorphous polymers, including poly (ethylene oxide) (PEO), poly(vinyl pyrrolidone) (PVP), poly(propylene oxide) (PPO), poly(vinylidene fluoride) (PVDF), poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP), poly(methyl methacrylate) (PMMA), poly(acrylonitrile) (PAN), poly(vinyl chloride) (PVC), poly(vinyl alcohol) (PVA), and poly(propylene carbonate) (PPC) are most common and frequently utilized as host matrices in the preparation of high performance SPEs. 2,3,5,6,8,9,12,13,[15][16][17][18][19][20][21] The use of these different polymer matrices offers a large number of advantages in the SPEs development, ranging from their inherent flexibility, appreciable conductivity, thermal stability, and compatibility with other components of the electrochemical devices. 3,4,12,[16][17][18][19][20][21][22] Among the polymer choices, the use of the PEO matrix dominates owing to its high chain mobility, low melting temperature with excellent film-forming capability, and facilitated ion transport mechanism when complexed with all kinds of alkali metal salts.…”

“…2,3,5,6,8,9,12,13,[15][16][17][18][19][20][21] The use of these different polymer matrices offers a large number of advantages in the SPEs development, ranging from their inherent flexibility, appreciable conductivity, thermal stability, and compatibility with other components of the electrochemical devices. 3,4,12,[16][17][18][19][20][21][22] Among the polymer choices, the use of the PEO matrix dominates owing to its high chain mobility, low melting temperature with excellent film-forming capability, and facilitated ion transport mechanism when complexed with all kinds of alkali metal salts. [3][4][5][6]8,9,13,[16][17][18][19][20][21] Additionally, the PEO is linear chain polymer renowned for being almost non-toxic, biocompatible, water-soluble, and easily processable with the features of high energy density, low glass transition temperature, and high dielectric constant.…”

“…3,4,12,[16][17][18][19][20][21][22] Among the polymer choices, the use of the PEO matrix dominates owing to its high chain mobility, low melting temperature with excellent film-forming capability, and facilitated ion transport mechanism when complexed with all kinds of alkali metal salts. [3][4][5][6]8,9,13,[16][17][18][19][20][21] Additionally, the PEO is linear chain polymer renowned for being almost non-toxic, biocompatible, water-soluble, and easily processable with the features of high energy density, low glass transition temperature, and high dielectric constant. 2,5,9,[17][18][19][20][22][23][24][25] The presence of repeated oxyethylene functional group that consisted of ether oxygen in the PEO chain is strongly compatible with the formation of coordination with metal salts, particularly lithium salt, leading to complete salt dissociation.…”

“…[3][4][5][6]8,9,13,[16][17][18][19][20][21] Additionally, the PEO is linear chain polymer renowned for being almost non-toxic, biocompatible, water-soluble, and easily processable with the features of high energy density, low glass transition temperature, and high dielectric constant. 2,5,9,[17][18][19][20][22][23][24][25] The presence of repeated oxyethylene functional group that consisted of ether oxygen in the PEO chain is strongly compatible with the formation of coordination with metal salts, particularly lithium salt, leading to complete salt dissociation. This characteristic behaviour of PEO effectively facilitates the ion transport mechanism through the favourable ion conductive paths developed in the ion-dipole complexes, and hence, results in enhanced ionic conductivity of the SPEs.…”

“…This characteristic behaviour of PEO effectively facilitates the ion transport mechanism through the favourable ion conductive paths developed in the ion-dipole complexes, and hence, results in enhanced ionic conductivity of the SPEs. 4,5,[17][18][19][20]23,26 Additionally, PEO exhibits a tunable amount of amorphous phase with the added salt contents that allow for control of chain flexibility and its segmental dynamics, and simultaneously the ion transport mechanism. [2][3][4]18,23 These properties make the PEO material an ideal candidate for the development of promising performance SPEs.…”