Pseudo-equilibrium phase diagrams for PEOâZn salts-based electrolytes

Plancha, Maria João; Rangel, C. M.; Sequeira, C. A. C.

doi:10.1016/s0167-2738(98)00356-7

Cited by 32 publications

(15 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It shows that the pure PEO has highest value (59.46 kJ/mole) which is in agreement with the reported values [15] The value decreases with the addition of Li and Na salts and further decreases with the addition of plasticizer and lies in the range of 33.83 to 36.65 kJ/mole showing almost about 50% reduction in the activation energy. This means that these salts and plasticizers have enhanced movement within polymer matrix.…”

Section: Resultssupporting

confidence: 90%

Conductance study of poly(ethylene oxide)- and poly(propylene oxide)-based polyelectrolytes

Khan

Shakoor

Nisar

2010

Ionics

View full text Add to dashboard Cite

The ionic conductivity of poly(ethylene oxide) and poly(propylene oxide) in pure solution form, individually complexed with salts of Na + and Li + , with and without plasticizer (propylene carbonate) and in blended form with individual salt with and without plasticizer, was studied. The conductance measurements were made at various concentrations of salt polymer complexes and at different temperatures. The effects of temperature and plasticizer concentration were measured from Arrhenius conductance plots. It is shown that the addition of salts in pure PEO increases conductance many times. The plasticizer has also same effect. The blending of PEO with PPO gives enhanced conductivity as compared to pure PEO. The activation energies were determined for all the systems which gave higher values for pure PEO and the value decreases with the addition of Li and Na salts and further decreases with the addition of plasticizer. The blending has also lowered the activation energy values which mean that incorporation of PPO in PEO has decreased crystallinity and the amorphous region has increased the local mobility of polymer chains resulting in lower activation energies.

show abstract

Section: Resultssupporting

confidence: 90%

Conductance study of poly(ethylene oxide)- and poly(propylene oxide)-based polyelectrolytes

Khan

Shakoor

Nisar

2010

Ionics

View full text Add to dashboard Cite

show abstract

“…Secondary zinc batteries based on aqueous electrolytes [1,[4][5][6][7][8][9][10] have been reported as well. The other class of electrolytes that has received attention is based on polymers [11][12][13][14][15][16][17][18] such as poly(ethyleneoxide) in combination with various zinc salts [11][12][13][14]. The conductivity of such electrolytes does not exceed lS cm À1 under ambient conditions.…”

Section: Introductionmentioning

confidence: 99%

Ambient temperature, zinc ion-conducting, binary molten electrolyte based on acetamide and zinc perchlorate: Application in rechargeable zinc batteries

Narayanan

Ashokraj

Sampath

2010

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

“…SAXS of Zn 2+ ion conducting polymer electrolyte Nanostructured materials as nanophases, nanocomposites and polymer electrolytes such as (PEO) 8 ZnCl 2 can be considered as aggregates containing nanoparticles or nanograins (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16). In this case, the SAXS is caused by the difference of electron density within and around the nanoparticles.…”

Section: Resultsmentioning

confidence: 99%

“…For these reasons PEO has been the basis of many investigations in the area based on composites of a polymer and an insulating ceramic. Polymeric complexes of (PEO) n with ZnCl 2 have been used, due to their stability and a very high conductivity as compared to other complexes (1,2). The mechanical properties of amorphous of PEObased electrolytes are poor and attempts to improve these have included addition of inert filler.…”

Section: Introductionmentioning

confidence: 99%

SAXS/DSC Study of Polymer Electrolyte for Zn Rechargeable Nanostructured Galvanic Cells

Turković¹,

Pavlović²,

Dubček³

et al. 2007

ECS Trans.

View full text Add to dashboard Cite

PEO) 8 ZnCl 2 polymer electrolytes and nano-composites were prepared using PEO γ-irradiated to selected dose of 309 KGy and TiO 2 nanograins. The influence of added nanosize TiO 2 grains to polymer electrolytes and the effect of γ-radiation from a Co-60 source were studied by small-angle X-ray scattering (SAXS) simultaneously recorded with differential scanning calorimetry (DSC) at synchrotron ELETTRA. Impedance spectroscopy (IS) was also performed. Above-mentioned treatments largely enhanced the conductivity of polymer electrolyte. Room temperature conductivity increase up to two orders of magnitude was achieved. Addition of nanograins increased conductivity more than can be ascribed to crystallinity possibly because of interactions of anion with nanograins.

show abstract

Pseudo-equilibrium phase diagrams for PEOâZn salts-based electrolytes

Cited by 32 publications

References 18 publications

Conductance study of poly(ethylene oxide)- and poly(propylene oxide)-based polyelectrolytes

Conductance study of poly(ethylene oxide)- and poly(propylene oxide)-based polyelectrolytes

Ambient temperature, zinc ion-conducting, binary molten electrolyte based on acetamide and zinc perchlorate: Application in rechargeable zinc batteries

SAXS/DSC Study of Polymer Electrolyte for Zn Rechargeable Nanostructured Galvanic Cells

Contact Info

Product

Resources

About

Pseudo-equilibrium phase diagrams for PEOâZn salts-based electrolytes

Cited by 32 publications

References 18 publications

Conductance study of poly(ethylene oxide)- and poly(propylene oxide)-based polyelectrolytes

Conductance study of poly(ethylene oxide)- and poly(propylene oxide)-based polyelectrolytes

Ambient temperature, zinc ion-conducting, binary molten electrolyte based on acetamide and zinc perchlorate: Application in rechargeable zinc batteries

SAXS/DSC Study of Polymer Electrolyte for Zn Rechargeable Nanostructured Galvanic Cells

Contact Info

Product

Resources

About

Pseudo-equilibrium phase diagrams for PEOâZn salts-based electrolytes