Solid polymer electrolytes based on oligo(ethylene glycol)methacrylates

Sandner, B.; Steurich, T.; Wiesner, Kerstin; Bischoff, H.

doi:10.1007/bf00294835

Cited by 27 publications

(11 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We have focused our studies on gel electrolytes on the basis of homopolymers and copolymers of oligo(ethylene glycol) dimethacrylates plasticized with various oligo(ethylene glycol) derivatives. − A significant amount of research work has been published in the literature on the properties of polymer electrolytes on the basis of comb branched poly(methyl methacrylate)s with oligo(ethylene glycol) units in the side chains or poly(methyl methacrylate)s grafted with PEO and on gels based on PMMA. , Contrary to most of these systems, our intention was to prepare mechanically stable electrolyte films by chemically cross-linking in one step in the presence of plasticizer and salt.…”

Section: Introductionmentioning

confidence: 99%

Ionic Conductivity−Structure Property Relationship in Gel Electrolytes on the Basis of Oligo(ethylene glycol)₂₃ Dimethacrylate Plasticized with Oligo(ethylene glycol)₁₁ Dimethyl Ether

et al. 1998

Self Cite

View full text Add to dashboard Cite

This paper reports dielectric spectroscopic studies completed by electrochemical measurements in combination with DSC and PFG-NMR investigations to study the charge carrier transport in gel electrolytes, which were prepared by photoinitiated polymerization of oligo(ethylene glycol)23 dimethacrylate [(EG)23DMA] in the presence of oligo(ethylene glycol)11dimethyl ether [(EG)11DME] as plasticizer and LiCF3SO3. The resulting films show a glass transition at about −60 °C and the melting of the plasticizer around −12 °C. Below the glass transition two relaxation processes were observed by dielectric spectroscopy, which most likely are to be related to the γ relaxation of the EG groups and the β relaxation of the methacrylate groups. The high-temperature behavior of the dielectric response is dominated by the conductivity, which is weakly dependent on the frequency in this temperature range. The permittivity goes through a maximum at room temperature and decreases with further enhancement of the temperature in connection with an increase in ionic aggregation indicated by growing deviations from the Nernst−Einstein relationship. These deviations expressed as a Haven ratio are discussed as the contribution of bounded species that do not take part in the conductivity to the overall diffusivity, either by an enlarged content of these species, c b, or by an enhancement of their self-diffusivity, D b.

show abstract

Section: Introductionmentioning

confidence: 99%

Ionic Conductivity−Structure Property Relationship in Gel Electrolytes on the Basis of Oligo(ethylene glycol)₂₃ Dimethacrylate Plasticized with Oligo(ethylene glycol)₁₁ Dimethyl Ether

et al. 1998

Self Cite

View full text Add to dashboard Cite

show abstract

“…13,14 Other methods include formation of the so-called rubbery electrolyte (polymer-in-salt) 15,16 and usage of plasticizers such as low molecular weight oligo(ethylene glycol), aprotic organic solvents, or low-vapor solvents, e.g., ethylene carbonate (EC), propylene carbonate (PC) etc. 17,18 These methods enhance the ionic conductivity to several times of its original value; however, the electrolytes suffer great deterioration in mechanical strength and electrochemical stability. Recently, composites of polymer electrolytes with particles (e.g., Al 2 O 3 , SiO 2 , TiO 2 etc.)…”

Section: Introductionmentioning

confidence: 99%

High ionic conductivity P(VDF-TrFE)/PEO blended polymer electrolytes for solid electrochromic devices

Nguyen

Xiong

et al. 2011

Phys. Chem. Chem. Phys.

View full text Add to dashboard Cite

Solid polymer electrolytes with excellent ionic conductivity (above 10(-4) S cm(-1)), which result in high optical modulation for solid electrochromic (EC) devices are presented. The combination of a polar host matrix poly(vinylidene fluoride-trifluoroethylene) P(VDF-TrFE) and a solid plasticized of a low molecular weight poly(ethylene oxide) (PEO) (M(w)≤ 20,000) blended polymer electrolyte serves to enhance both the dissolution of lithium salt and the ionic transport. Calorimetric measurement shows a reduced crystallization due to a better intermixing of the polymers with small molecular weight PEO. Vibrational spectroscopy identifies the presence of free ions and ion pairs in the electrolytes with PEO of M(w)≤ 8000. The ionic dissolution is improved using PEO as a plasticizer when compared to liquid propylene carbonate, evidently shown in the transference number analysis. Ionic transport follows the Arrhenius equation with a low activation energy (0.16-0.2 eV), leading to high ionic conductivities. Solid electrochromic devices fabricated with the blended P(VDF-TrFE)/PEO electrolytes and polyaniline show good spectroelectrochemical performance in the visible (300-800 nm) and near-infrared (0.9-2.4 μm) regions with a modulation up to 60% and fast switching speed of below 20 seconds. The successful introduction of the solid polymer electrolytes with its best harnessed qualities helps to expedite the application of various electrochemical devices.

show abstract

“…This work inspired intense research and development on the synthesis of new polymer electrolytes, physical studies of their structure, ion transport, modeling of ion transport mechanisms and the physical and chemical properties at the electrode-electrolyte interface. Nowadays, several types of polymer electrolytes are developed and characterized, especially those based on polyethylene oxide (PEO) [7][8], poly-(acrylonirile) (PAN) [9][10][11][12] poly(methylmethacrylate) (PMMA) [13][14][15], poly(vinyl chloride) [16][17][18] and poly(vinylidene fluoride) (PVDF) [19][20]. These polymer electrolytes exhibit conductivities in the range of 10 -8 to 104 Scm ~ at temperatures between 40 to 80 ~ Many investigations have been focused on the enhancement of the room-temperature conductivity, using various appro aches such as preparing blends, copol ymers, combbranch polymers and cross-linked networks.…”

Section: Introductionmentioning

confidence: 99%

Infrared and conductivity studies on blends of PMMA/PEO based polymer electrolytes

Osman

Ansor

Chew

et al. 2005

Ionics

View full text Add to dashboard Cite

Abstract. Poly(methylmetacrylate)/poly(ethylene oxide) (PMMA/PEO) based polymer electrolytes were synthesized using the solution cast technique. Four systems of PMMA/PEO blends based polymer electrolytes films were investigated:PMMA/PEO + ethylene carbonate (EC) system, (3) PMMA/PEO + lithium hexafluorophosphate (LiPF6) system and (4) PMMA/PEO + EC + LiPF6 system. The polymer electrolytes films were characterized by Impedance Spectroscopy and Fourier Transform Infrared Spectroscopy (FTIR). The FTIR spectra show the complexation occurrring between the polymers, plasticizer and lithium salt. The FTIR results give further insight in the conductivity enhancement of PMMA/PEO blends based polymer electrolytes.

show abstract

Solid polymer electrolytes based on oligo(ethylene glycol)methacrylates

Cited by 27 publications

References 11 publications

Ionic Conductivity−Structure Property Relationship in Gel Electrolytes on the Basis of Oligo(ethylene glycol)₂₃ Dimethacrylate Plasticized with Oligo(ethylene glycol)₁₁ Dimethyl Ether

Ionic Conductivity−Structure Property Relationship in Gel Electrolytes on the Basis of Oligo(ethylene glycol)₂₃ Dimethacrylate Plasticized with Oligo(ethylene glycol)₁₁ Dimethyl Ether

High ionic conductivity P(VDF-TrFE)/PEO blended polymer electrolytes for solid electrochromic devices

Infrared and conductivity studies on blends of PMMA/PEO based polymer electrolytes

Contact Info

Product

Resources

About

Solid polymer electrolytes based on oligo(ethylene glycol)methacrylates

Cited by 27 publications

References 11 publications

Ionic Conductivity−Structure Property Relationship in Gel Electrolytes on the Basis of Oligo(ethylene glycol)23 Dimethacrylate Plasticized with Oligo(ethylene glycol)11 Dimethyl Ether

Ionic Conductivity−Structure Property Relationship in Gel Electrolytes on the Basis of Oligo(ethylene glycol)23 Dimethacrylate Plasticized with Oligo(ethylene glycol)11 Dimethyl Ether

High ionic conductivity P(VDF-TrFE)/PEO blended polymer electrolytes for solid electrochromic devices

Infrared and conductivity studies on blends of PMMA/PEO based polymer electrolytes

Contact Info

Product

Resources

About

Ionic Conductivity−Structure Property Relationship in Gel Electrolytes on the Basis of Oligo(ethylene glycol)₂₃ Dimethacrylate Plasticized with Oligo(ethylene glycol)₁₁ Dimethyl Ether

Ionic Conductivity−Structure Property Relationship in Gel Electrolytes on the Basis of Oligo(ethylene glycol)₂₃ Dimethacrylate Plasticized with Oligo(ethylene glycol)₁₁ Dimethyl Ether