Li+ ion conduction in TiO2 filled polyvinylidenefluoride-co-hexafluoropropylene based novel nanocomposite polymer electrolyte membranes with LiDFOB

Aravindan, Vanchiappan; Vickraman, P.; Krishnaraj, K.

doi:10.1016/j.cap.2009.04.001

Cited by 37 publications

(24 citation statements)

References 36 publications

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“…The transition region around 240-310°C is due to decomposition of LiDFOB. The region around 310-350°C may be attributed to the formation of B 2 O 3 (glass) by decomposition of the oxalate moieties in LiDFOB [14]. The weight loss at 350°C is 25 %.…”

Section: Dsc Analysismentioning

confidence: 92%

“…The advantages of LiBOB are reducing dissolution of cathode active materials and provide excellent overcharge tolerance and solid electrolyte interphase (SEI) formation [13]. The drawbacks of LiBOB are limited solubility in carbonate solvents and extremely sensitive to moisture [14]. The advantages of LiBF 4 are excellent low temperature cycling performance and less sensitive to the moisture as compared with LiPF 6 [15].…”

Section: Introductionmentioning

confidence: 98%

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Poly(ethylene oxide)-lithium difluoro(oxalato)borate new solid polymer electrolytes: ion–polymer interaction, structural, thermal, and ionic conductivity studies

Polu

Kim

Rhee

2015

Ionics

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Solid polymer electrolytes based on high molecular weight poly(ethylene oxide) (PEO) complexed with lithium difluoro(oxalato)borate (LiDFOB) salt in various EO:Li molar ratios from 30:1 to 8:1 were prepared by using solution casting technique. Ion-polymer interaction, structural, thermal, and ionic conductivity studies have been reported by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), polarized optical microscopy (POM), differential scanning calorimeter (DSC), and impedance analysis. FTIR spectral studies suggested that the interaction of Li + cations with the ether oxygen of PEO, where a triple peak broad band centered at 1105 cm −1 , corresponds to C-O-C stretching and extreme deformation occurs. XRD, POM, and DSC indicated that the inclusion of LiDFOB salt could reduce the crystallinity of PEO. The melting temperature of PEO shifted to lower temperature side by the addition of LiDFOB. The glass transition temperature obtained for the system 10:1 was −38.2°C. An increase in the ionic conductivity from 3.95×10 −9 to 3.18× 10 −5 S/cm at room temperature (23°C) was obtained through the addition of LiDFOB to a high molecular weight PEO. In addition, the ionic conductivity of the polymer electrolyte films followed an Arrhenius relation, and the activation energy decreased with increasing LiDFOB concentration.

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Section: Dsc Analysismentioning

confidence: 92%

Section: Introductionmentioning

confidence: 98%

Poly(ethylene oxide)-lithium difluoro(oxalato)borate new solid polymer electrolytes: ion–polymer interaction, structural, thermal, and ionic conductivity studies

Polu

Kim

Rhee

2015

Ionics

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“…The solubility of the ionic liquid is dependent on the large-sized cations and smallersized counter anions of either organic or inorganic nature [164,172]. The bulky anions that favour the delocalisation of charges will reduce the interaction between cations and anions in the complexes with low lattice energy [173]. This accelerates the ionic dissociation.…”

Section: Room Temperature Ionic Liquidsmentioning

confidence: 99%

A review of polymer electrolytes: fundamental, approaches and applications

Ngai

Ramesh

Juan

2016

Ionics

584

369

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In this paper, we review different types of polymer electrolytes, recent approaches and technological applications of polymer electrolytes. The report first discusses the characteristics, advantages and applications for three types of polymer electrolytes: gel polymer electrolytes, solid polymer electrolytes and composite polymer electrolytes. Next, we discuss the features and performance of different polymer hosts based on some important and recently published literature. Recent progress of some approaches used in improving the performance of the polymer electrolytes is highlighted. The last part of the review includes the technological applications of some electrical energy storing/converting devices: electrochemical capacitors, batteries, fuel cells and dye-sensitized solar cells. It is also stressed that the technological advancement in the polymer electrolytes plays a pivotal role in the development of energy storing/converting systems.

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“…On the other hand, triflate anion was selected due to its bulky structure. This bulky anion favors the delocalization of charge and reduces the interaction between anion and cation in the complex with lower lattice energy, leading to the high degree of dissociation [13].…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterization of lithium ion conducting ionic liquid-based biodegradable corn starch polymer electrolytes

Liew

Ramesh

Arof

2012

J Solid State Electrochem

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Thin films of biodegradable corn starch-based biopolymer electrolytes were prepared by solution casting technique. Lithium hexafluorophosphate (LiPF 6 ) and 1-butyl-3-methylimidazolium trifluoromethanesulfonate (BmImTf) were employed as lithium salt and ionic liquid, respectively. With reference to the temperature dependence study, Arrhenius relationship was observed. The highest ionic conductivity of (6.00 ± 0.01) × 10 −4 S cm −1 was obtained at 80°C. Based on x-ray diffraction (XRD) result, the peaks became broader with doping of ionic liquid revealing the higher amorphous region of the biopolymer electrolytes. Ionic liquid-based biopolymer electrolytes exhibited lower glass transition temperature (T g ).

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Li+ ion conduction in TiO2 filled polyvinylidenefluoride-co-hexafluoropropylene based novel nanocomposite polymer electrolyte membranes with LiDFOB

Cited by 37 publications

References 36 publications

Poly(ethylene oxide)-lithium difluoro(oxalato)borate new solid polymer electrolytes: ion–polymer interaction, structural, thermal, and ionic conductivity studies

Poly(ethylene oxide)-lithium difluoro(oxalato)borate new solid polymer electrolytes: ion–polymer interaction, structural, thermal, and ionic conductivity studies

A review of polymer electrolytes: fundamental, approaches and applications

Preparation and characterization of lithium ion conducting ionic liquid-based biodegradable corn starch polymer electrolytes

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