Gel electrolytes on the basis of oligo(ethylene glycol)n dimethacrylates—thermal, mechanical and electrochemical properties in relationship to the network structure

Reiche, A.; Sandner, R.; Weinkauf, A.; Sandner, B.; Fleischer, G.; Rittig, Frank

doi:10.1016/s0032-3861(99)00555-8

Cited by 28 publications

(33 citation statements)

References 24 publications

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“…The schematic structure of the polymer networks is shown in Scheme 1. Figure 1 shows the temperature dependence of the ionic conductivity for PEGDE-DGEBA-D400 solventfree polymer electrolytes with different concentrations of DGEBA (wt %) at the LiClO 4 …”

Section: Resultsmentioning

confidence: 99%

“…All the polymer electrolyte networks were prepared as follows: Polymer electrolyte network films 100 -150 m thick were prepared through the dissolution of certain amounts of the epoxy monomers (PEGDE and DGEBA) and a stoichiometric amount of the curing agent in acetone, and then various amounts of LiClO 4 were dissolved in the as-prepared solutions. The concentration of LiClO 4 in the polymer network complexes was represented by the molar ratios of ether oxygens of PEGDE and ␣,-diamino poly(propylene oxide) to LiClO 4 …”

Section: Preparation Of Solvent-free and Gelled Crosslinked Polymer Ementioning

confidence: 99%

“…The concentration of LiClO 4 in the polymer network complexes was represented by the molar ratios of ether oxygens of PEGDE and ␣,-diamino poly(propylene oxide) to LiClO 4 …”

Section: Preparation Of Solvent-free and Gelled Crosslinked Polymer Ementioning

confidence: 99%

“…DSC thermograms of PEGDE-D400 -10 wt % DGEBA at the LiClO 4 Figure 2. For the PC-free polymer electrolyte, two thermal transitions were observed at very different temperatures.…”

Section: Ionic Conductivity Measurements and Dsc Studiesmentioning

confidence: 99%

“…1,2 Poly(ethylene oxide) (PEO) is the best host matrix for disassociating lithium salts. Besides PEO, several alternative systems, such as poly(methyl methacrylate), 3,4 polyacrylonitrile, 5,6 poly(vinylidine fluoride), 7 and polyurethane, 8 -10 have been investigated. Because solid-state polymer electrolytes exhibit low ionic conductivity at ambient temperature, which prevents them from being used in further applications, organic plasticizers are used to swell the polymers and to enhance the ionic conductivity of the polymer electrolytes; in this way, gelled electrolytes are formed.…”

Section: Introductionmentioning

confidence: 99%

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Solid polymer electrolytes. VII. Preparation and ionic conductivity of gelled polymer electrolytes based on poly(ethylene glycol) diglycidyl ether cured with α,ω‐diamino poly(propylene oxide)

Liang

Chen

Kuo

2004

J of Applied Polymer Sci

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ABSTRACT:Crosslinked polymer electrolyte networks were prepared from poly(ethylene glycol) diglycidyl ether blended with an epoxy resin (diglycidyl ether of bisphenol A) in different ratios and then cured with ␣,-diamino poly(propylene oxide) in the presence of lithium perchlorate (LiClO 4 ) as a lithium salt. The ionic conductivities of these polymer electrolytes were determined by alternating current (AC) impedance spectroscopy. Propylene carbonate (PC) was used as a plasticizer to form gelled polymer electrolyte networks. The conductivities of the polymer electrolytes containing 46 wt % PC plasticizer were approximately 5 ϫ 10 Ϫ4 S cm Ϫ1 at 25°C and approximately 10 Ϫ3 S cm Ϫ1 at 85°C. These polymer electrolytes were homogeneous and exhibited good mechanical properties. The effects of the polymer composition, plasticizer content, salt concentration, and temperature on the ionic conductivities of the polymer electrolytes were examined.

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Section: Resultsmentioning

confidence: 99%

Section: Preparation Of Solvent-free and Gelled Crosslinked Polymer Ementioning

confidence: 99%

“…The concentration of LiClO 4 in the polymer network complexes was represented by the molar ratios of ether oxygens of PEGDE and ␣,-diamino poly(propylene oxide) to LiClO 4 …”

Section: Preparation Of Solvent-free and Gelled Crosslinked Polymer Ementioning

confidence: 99%

“…DSC thermograms of PEGDE-D400 -10 wt % DGEBA at the LiClO 4 Figure 2. For the PC-free polymer electrolyte, two thermal transitions were observed at very different temperatures.…”

Section: Ionic Conductivity Measurements and Dsc Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Solid polymer electrolytes. VII. Preparation and ionic conductivity of gelled polymer electrolytes based on poly(ethylene glycol) diglycidyl ether cured with α,ω‐diamino poly(propylene oxide)

Liang

Chen

Kuo

2004

J of Applied Polymer Sci

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A Particle‐Controlled, High‐Performance, Gum‐Like Electrolyte for Safe and Flexible Energy Storage Devices

Wang

Zhong

Schiff

et al. 2014

Advanced Energy Materials

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Storing energy within flexible and safe materials is one of the most important goals for energy storage devices. To that end, high‐performance conformable electrolytes, which can transport ions quickly and safely, and can also effectively separate and bond strongly to the two electrodes, are of great importance. However, it is challenging to develop an electrolyte that can play these multiple roles simultaneously. Here, aiming to overcome this challenge, a particle‐based approach to the fabrication of a high‐performance, gum‐like electrolyte is described. The intriguing properties of the gum‐like electrolyte include high ionic conductivity, good mechanical properties, excellent adhesion properties, and, more importantly, thermal‐protection capability. It is shown that these significant properties are well‐controlled by the incorporation of wax particles with variable size, loading, and surface properties that can be designed through the use of an apporpriate surfactant. This provides a promising solution for high‐performance electrolytes and indicates a cost‐effective approach to fabricating multifunctional ion‐conducting materials.

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Structure and ionic conductive properties of polydioxolane–polyurethane‐based electrolytes

Zhu

Zhang

Wang

et al. 2001

J of Applied Polymer Sci

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A series of polyurethanes (PUs) with different polyether soft segments [polydioxolane (PDXL), polyethylene glycol (PEG), or PDXL/PEG] were synthesized successfully, and solid polymer electrolytes based on PU/LiClO 4 complexes were prepared. The relations between structure and the ionic conductive properties of the PU-based electrolytes were investigated by means of Fourier transform infrared spectroscopy, differential scanning calorimetry, dynamic mechanical analysis, and complex impedance analysis. Results showed that the glass-transition temperature (T g ) of PDXL-PU was lower than that of PEG-PU. Doped lithium perchlorate (LiClO 4 ) salt could be dissolved well in soft segments of PDXL-PU. The ionic conductivity of the PDXL-PU/LiClO 4 complex could reach a value of 2 ϫ 10 Ϫ5 S/cm at room temperature without the addition of an organic plasticizer. The system with PDXL/PEG as a soft segment had a higher T g and a lower ionic conductivity than the one with PDXL as a soft segment.

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Gel electrolytes on the basis of oligo(ethylene glycol)n dimethacrylates—thermal, mechanical and electrochemical properties in relationship to the network structure

Cited by 28 publications

References 24 publications

Solid polymer electrolytes. VII. Preparation and ionic conductivity of gelled polymer electrolytes based on poly(ethylene glycol) diglycidyl ether cured with α,ω‐diamino poly(propylene oxide)

Solid polymer electrolytes. VII. Preparation and ionic conductivity of gelled polymer electrolytes based on poly(ethylene glycol) diglycidyl ether cured with α,ω‐diamino poly(propylene oxide)

A Particle‐Controlled, High‐Performance, Gum‐Like Electrolyte for Safe and Flexible Energy Storage Devices

Structure and ionic conductive properties of polydioxolane–polyurethane‐based electrolytes

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