Dual phase polymer gel electrolyte based on non-woven poly(vinylidenefluoride-co-hexafluoropropylene)–layered clay nanocomposite fibrous membranes for lithium ion batteries

Shubha, Nageswaran; Raghavan, Praveen; Hng, Huey Hoon; Srinivasan, Madhavi

doi:10.1016/j.materresbull.2012.11.002

Cited by 45 publications

(44 citation statements)

References 41 publications

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“…However, when the temperature is above 255 ∘ C, ppy decomposes into gas, destroying the insulating surface and promoting the volatilization of PE. Thus, the weight loss of nano-ppy/OMMT-coated separator takes place rapidly at 255-410 ∘ C. These results indicate that the nano-ppy/OMMT-coated separator could be available in Li-ion cell at temperatures below 80 ∘ C [28,30]. Figure 5 shows that, under the test condition, the elastic modulus and the yield stress of PE separator are both small, and its elongation at break is high.…”

Section: Resultsmentioning

confidence: 89%

“…The characteristic peak is shifted to 2 = 2.68 ∘ , corresponding to the interlayer spacing of 3.61 nm for nano-ppy/OMMT. Meanwhile, the diffraction peak becomes much smoother, meaning that the nano-ppy/OMMT is in amorphous state, which makes it much easier to enhance the ionic conductivity of polymer electrolytes [28,29]. shows that the polymer chain of PE is relatively dense so that it is not conducive to absorb organic electrolyte.…”

Section: Resultsmentioning

confidence: 99%

“…The ionic conductivity of 8% nano-ppy/OMMT-coating is lower than that of 6% nano-ppy/OMMT-coating. The excess nano-ppy/OMMT may adhere to Li-ion tightly, retarding the mobility of Liion and thereby increasing the bulk resistance of 8% nanoppy/OMMT-coating [28].…”

Section: Resultsmentioning

confidence: 99%

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Enhancement of Thermal Stability and Cycling Performance of Lithium-Ion Battery at High Temperature by Nano-ppy/OMMT-Coated Separator

Yang

Qin

et al. 2017

Journal of Nanomaterials

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Nanopolypyrrole/organic montmorillonite- (nano-ppy/OMMT-) coated separator is prepared by coating nano-ppy/OMMT on the surface of polyethylene (PE). Nano-ppy/OMMT-coated separator with three-dimensional and multilayered network structure is beneficial to absorb more organic electrolyte, enhancing the ionic conductivity (reach 4.31 mS·cm-1). Meanwhile, the composite separator exhibits excellent thermal stability and mechanical properties. The strong covalent bonds (Si-F) are formed by the nucleophilic substitution reaction between F−from the thermal decomposition and hydrolysis of LiPF6and the covalent bonds (Si-O) of nano-ppy/OMMT. The Si-F can effectively prevent the formation of HF, POF3, and LiF, resulting in the inhibition of the disproportionation of Mn3+in LiNi1/3Co1/3Mn1/3O2material as well as reducing the internal resistance of the cell. Therefore, the nano-ppy/OMMT-coated separator exhibits outstanding capacity retention and cycling performance at 80°C.

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Section: Resultsmentioning

confidence: 89%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Enhancement of Thermal Stability and Cycling Performance of Lithium-Ion Battery at High Temperature by Nano-ppy/OMMT-Coated Separator

Yang

Qin

et al. 2017

Journal of Nanomaterials

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“…Swellable PANd oped with organo-modified MMT exhibited ad ischarge capacity of 141 mAh g À1 ,w ith retention of 95.9 %c apacity after 100 cycles credited to the dense structure of the GPEs that were helpful in suppressing lithium dendrite formation as seen from the SEM images [81] (Figure 11 A,B). [82] Prasanth and colleagues [8b] used phase inversion technique to accommodate PVDF into organophilic clay, creating ap orous network that allowed efficient electrolyte absorption, decreased the interfacialr esistance, thus achievinga ni nitial discharge capacity of 118mAh g À1 and retaining 96.6 %c apacity after 30 cycles after assembly in aL i/LiMn 2 O 4 cell (Figure 11 C).…”

Section: Lithium Ion Batteriesmentioning

confidence: 99%

Hybrid Solid Polymer Electrolytes with Two‐Dimensional Inorganic Nanofillers

Chua

Fang

Sun

et al. 2018

Chemistry A European J

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Solidp olymer electrolytes are of rapidly increasing importance for the research andd evelopment of future safe batteries with high energy density.T he diversified chemistry and structures of polymers allow the utilization of aw ide range of soft structures for all-polymers olid-state electrolytes. With equal importance is the hybrid solid-state electrolytes consisting of both "soft" polymeric structure and "hard" inorganic nanofillers.T he recent emergence of the re-discovery of many two-dimensional layered materials hass timulated the booming of advanced research in energy storage fields, such as batteries, supercapacitors, and fuel cells. Of special interesti st he mass transport properties of these 2D nanostructures for water,g as, or ions. This review aims at the current progress and prospective development of hybrid polymer-inorganic solid electrolytes based on important 2D materials, including natural clay and synthetic lamellar structures. The ion conduction mechanism and the fabrication, property and device performance of these hybrid solid electrolyteswill be discussed.

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“…The composite is suggested to be of benet in exchange-proton membranes in fuel cells, tissue engineering, drug delivery and wastewater treatment, as a result of easy availability of functional groups, high specic surface area, well-arranged pores as well as superior speci-cations of two-dimensional clay layered nanoplatelets such as enhanced thermal, mechanical and barrier properties along with their biocompatibility. [26][27][28][29][30][31][32][33][34][35][36][37][38][39] The as-synthesized composite bers were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), thermogravimetric (TGA) and differential scanning calorimetric (DSC) analysis.…”

Section: Introductionmentioning

confidence: 99%

Ordered exfoliated silicate platelets architecture: hydrogen bonded poly(acrylic acid)–poly(ethylene oxide)/Na–montmorillonite complex nanofibrous membranes prepared by electrospinning technique

et al. 2014

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Hydrogen bonded poly(acrylic acid)-poly(ethylene oxide) interpolymer nanofibrous membranes containing well-arranged/dispersed exfoliated Na-montmorillonite platelets were obtained successfully using the electrospinning technique. The as-spun composite nanostructures were characterized by X-ray diffraction patterns and electron microscopy, and confirm the formation of a favoring ordered exfoliated architecture along the fiber axis. Thermal analysis suggested that an increase in both the thermal stability and the melting point of the as-synthesized composite nanostructures could be a result of ordered exfoliated morphology as well as the well-distributed clay platelets along the fiber axis. Improved morphological and thermal properties assigned to aligned clay platelets induced by the electrospinning technique make the as-spun non-woven membranes more promising candidates in tissue engineering, drug delivery, fuel cell proton exchange membranes and environmental pollution treatment applications.

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Dual phase polymer gel electrolyte based on non-woven poly(vinylidenefluoride-co-hexafluoropropylene)–layered clay nanocomposite fibrous membranes for lithium ion batteries

Cited by 45 publications

References 41 publications

Enhancement of Thermal Stability and Cycling Performance of Lithium-Ion Battery at High Temperature by Nano-ppy/OMMT-Coated Separator

Enhancement of Thermal Stability and Cycling Performance of Lithium-Ion Battery at High Temperature by Nano-ppy/OMMT-Coated Separator

Hybrid Solid Polymer Electrolytes with Two‐Dimensional Inorganic Nanofillers

Ordered exfoliated silicate platelets architecture: hydrogen bonded poly(acrylic acid)–poly(ethylene oxide)/Na–montmorillonite complex nanofibrous membranes prepared by electrospinning technique

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