Effect of TiO2 nano-filler and EC plasticizer on electrical and thermal properties of poly(ethylene oxide) (PEO) based solid polymer electrolytes

Vignarooban, K.; Dissanayake, M.A.K.L.; Albinsson, Ingvar; Mellander, Bengt-Erik

doi:10.1016/j.ssi.2014.08.002

Cited by 191 publications

(110 citation statements)

References 24 publications

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“…As expected, the Al 2 O 3 filler could also contribute to conductivity enhancement by reducing the crystallinity and increasing the amorphous phase content of the polymer electrolytes. Very recently, Dissanayake et al 44 studied the effect of TiO 2 filler and EC plasticizer on thermal and electrical properties of (PEO) 9 LiTf electrolyte. The enhancement in conductivity (1.6 × 10 -4 S cm -1 ) at 30 °C was obtained by the incorporation of 50 wt.% EC and 10 wt.% TiO 2 (entry 11).…”

Section: Polymer Electrolytes With a Plasticizermentioning

confidence: 99%

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

2015

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This article reviews the PEO-based electrolytes for lithium-ion batteries.Poly(ethylene oxide) (PEO) based materials are widely considered as promising candidates of polymer hosts in solid-state electrolytes for high energy density secondary lithium batteries. They have several specific advantages such as high safety, easy fabrication, low cost, high energy density, good electrochemical stability, and excellent compatibility with lithium salt. However, the typical linear PEO does not reach the production requirement because its insufficient ionic conductivity due to the high crystallinity of the ethylene oxide (EO) chains, which can restrain the ionic transition due to the stiff structure especially at low temperature. The scientists have explored different approaches to reduce the crystallinity hence to improve the ionic conductivity of PEO-based electrolytes, including: blending, modifying and making PEO derivatives etc. This review is focused on surveying the recent developments and issues about PEO-based electrolytes for lithium-ion batteries.

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Section: Polymer Electrolytes With a Plasticizermentioning

confidence: 99%

Poly(ethylene oxide)-based electrolytes for lithium-ion batteries

2015

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“…Numerous efforts have been made to enhance the ionic conduction of SPEs including addition of plasticizers and fillers, synthesis of copolymers, single‐ion conductive electrolytes, polymer‐in‐salt electrolytes and many more . Several studies have revealed that low‐molecular‐weight plasticizers such as ethylene carbonate (EC; ϵ = 89.78), propylene carbonate (ϵ = 66.14) and dimethyl carbonate (ϵ = 3.17) enhance mobility of ions through decreasing the crystalline regions of a polymer matrix and simplifying polymer chain movements . However, poor mechanical properties are major drawbacks associated with such plasticized polymer electrolytes .…”

Section: Introductionmentioning

confidence: 99%

Nanofibrous poly(ethylene oxide)‐based structures incorporated with multi‐walled carbon nanotube and graphene oxide as all‐solid‐state electrolytes for lithium ion batteries

Banitaba

Semnani

Heydari-Soureshjani

et al. 2019

Polymer International

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Nanofibrous solid polymer electrolytes were prepared using the electrospinning method. These nanofibres were constructed from poly(ethylene oxide), lithium perchlorate and ethylene carbonate, which were incorporated with multi‐walled carbon nanotube (MWCNT) and graphene oxide (GO). The morphological properties of the as‐prepared electrolytes and the interaction between the components of the composites were characterized using scanning electron microscopy and Fourier transform infrared spectroscopy, respectively. X‐ray spectra and differential scanning calorimetry indicated an increase in amorphous regions of the nanofibrous electrolytes on addition of the fillers. However, the crystalline regions were increased on incorporation of fillers into polymeric film electrolytes. The conductivity values of the nanofibrous electrolytes reached 0.048 and 0.057 mS cm−1 when 0.35 wt% MWCNT and 0.21 wt % GO were introduced into the nanofibrous structures, respectively. The capacity and cycling stability of the nanofibrous electrolytes were improved by incorporation of MWCNT filler. Furthermore, stress and elongation modulus were improved at low MWCNT and GO filler contents. Results revealed that the nanofibrous structures could be promising candidates as solvent‐free electrolytes applicable in lithium ion batteries. © 2019 Society of Chemical Industry

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“…The absence of electrolyte leakage, light weight, ease of roll–roll fabrication and improved safety makes the composite solid electrolyte as a suitable candidate for the batteries and electrochemical cells [4]. Dispersion of submicrometer insulating oxide particles such as Al 2 O 3 , Fe 2 O 3 , SiO 2 , TiO 2 and ZrO 2 is a well known technique to enhance the transport characteristics as well as the thermal and mechanical properties of the several modest ionic conductors at room temperature [5], [6], [7], [8], [9], [10].…”

Section: Introductionmentioning

confidence: 99%