Temperature dependence on conductivity and thermal properties of a solid polymeric electrolyte of PVC–ZnO–LiClO4

Rahman, Mohd Yusri Abd; Ahmad, Azizan; Mangsor, M. R.; Wahab, Saidin

doi:10.1016/j.physb.2008.05.007

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…As temperature increases, the segments of the polymer begin to move more freely. As the result, the polymer softens and the gel viscosity decreases [25,26,35]. The visual images of decreased viscosity with increased temperature for the PVB is shown in figure S5.…”

Section: Resultsmentioning

confidence: 99%

“…The response-lag and the coloration-lack of the ECDs occur because of the redox-active materials near the electrode are only partially used, due to the low mobility of charged molecules in a high viscous gel [22]. Some researches [23][24][25] reported that high temperature could improve the ionic conductivity of electrolytes in lithium-ion batteries. For examples, Qu et al [24] studied the high temperature cycling performance of electrolyte using a three-electrode pouch cell.…”

Section: Introductionmentioning

confidence: 99%

“…For examples, Qu et al [24] studied the high temperature cycling performance of electrolyte using a three-electrode pouch cell. Rahman [25] reported the effect of temperature on the electrolyte conductivity and the highest ionic conductivity of their electrolyte was obtained at 90 • C. The increased conductivity with temperature was linked to the decrease in viscosity [26], as raising temperature generally can reduce the viscosity of polymer gels. So far, the temperature effect on EC performance, especially in all-in-one ECDs, has not been investigated.…”

Section: Introductionmentioning

confidence: 99%

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All-in-one electrochromic transparency-tuning window with an integrated metal-mesh heating film

He¹,

Huang²,

Wu³

et al. 2022

Flex. Print. Electron.

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Electrochromic (EC) smart windows with transparency-tuning capability can provide buildings with effective sun-shading and privacy to occupants at low energy consumption. The essential requirements to EC windows are fast response, dynamic tunability and low-cost. Recent development in all-in-one electrochromic devices (ECDs) which combines electrolyte, electrochromic and ion storage functions in a single gel has the advantage of single layer structure and can be manufactured in large areas at low cost. However, the coloring voltage and time of all-in-one ECDs can be influenced by the viscosity of active gel. By raising the working temperature, the ECD may have faster response time and lower coloring voltage due to reduced gel viscosity. To enable high working temperature, a high conductivity and high transparency metal-mesh heating film was integrated to an EC window glass. The coloring performance of the EC window was investigated at different heating temperatures compared to its room temperature performance. It was found that working at 70 ℃ the coloring efficiency was doubled and the response speed of the device is 5 times faster than that at room temperature. The integrated metal-mesh heating film also brought added benefits such as defog and defrost for car windshield.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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All-in-one electrochromic transparency-tuning window with an integrated metal-mesh heating film

He¹,

Huang²,

Wu³

et al. 2022

Flex. Print. Electron.

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“…The third class of polymeric electrolytes, which are polymers with lithium salt (e.g., LiCF 3 SO 3 ), is least studied. Their conductivity is controlled by the change of the polymeric matrix, impurity salt and temperature [11][12][13][14][15][16]. Polyethylene oxide (PEO) as a simple polyether can be chosen as the polymeric matrix due to its low molecular weight and an ease of solubility in water.…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic Investigation of Composite Polymeric and Monocrystalline Systems with Ionic Conductivity

Radziuk¹,

Möhwald²

2011

Polymers

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Abstract:The conductivity mechanism is studied in the LiCF 3 SO 3 -doped polyethylene oxide by monitoring the vibrations of sulfate groups and mobility of Li + ion along the polymeric chain at different EO/Li molar ratios in the temperature range from 16 to 90 °С. At the high EO/Li ratio (i.e., 30), the intensity of bands increases and a triplet appears at 1,045 cm −1 , indicating the presence of free anions, ionic pairs and aggregates. The existence of free ions in the polymeric electrolyte is also proven by the red shift of bands in Raman spectra and a band shift to the low frequency Infra-red region at 65 < T < 355 °С. Based on quantum mechanical modeling, (method MNDO/d), the energies (minimum and maximum) correspond to the most probable and stable positions of Li + along the polymeric chain. At room temperature, Li + ion overcomes the intermediate state (minimum energy) through non-operating transitions (maximum energy) due to permanent intrapolymeric rotations (rotation of C, H and O atoms around each other). In solid electrolyte (Li 2 SO 4 ) the mobility of Li + ions increases in the temperature range from 20 to 227 °С, yielding higher conductivity. The results of the present work can be practically applied to a wide range of compact electronic devices, which are based on polymeric or solid electrolytes.

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The Change of Structural, Optical and Thermal Properties of a PVDF/PVC Blend Containing ZnO Nanoparticles

Gaabour

Hamam

2017

Silicon

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Temperature dependence on conductivity and thermal properties of a solid polymeric electrolyte of PVC–ZnO–LiClO4

Cited by 6 publications

References 11 publications

All-in-one electrochromic transparency-tuning window with an integrated metal-mesh heating film

All-in-one electrochromic transparency-tuning window with an integrated metal-mesh heating film

Spectroscopic Investigation of Composite Polymeric and Monocrystalline Systems with Ionic Conductivity

The Change of Structural, Optical and Thermal Properties of a PVDF/PVC Blend Containing ZnO Nanoparticles

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