Structural, electrical, and electrochemical properties of PVA-based biodegradable gel polymer electrolyte membranes for Mg-ion battery applications

Wang, Jingwei; Song, Shenhua; Hu, Xingcheng; Liu, Renchen

doi:10.1007/s11581-017-1988-y

Cited by 39 publications

(11 citation statements)

References 51 publications

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“…The observed diffraction peak of CH:MC blend films is less intense when compared with those of pure MC films, which indicates that the blending of CH and MC causes a reduction in the degree of crystallinity and a simultaneous increase in the amorphicity of the system. It was quoted in the literature that the crystallinity fractions are directly proportional to the peak intensity and inversely related to the full-width at halfmaximum of the peak [37,38]. The intensity of XRD peaks decreases as the amorphous nature increases [39,40], and this amorphous nature facilitates the ionic diffusivity resulting in the increase of the electrical conductivity [41,42], as it will be seen later on.…”

Section: Xrd Studiesmentioning

confidence: 68%

Structural and electrical conductivity of CH:MC bio-poly-blend films: optimize the perfect composition of the blend system

2019

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In this study, solid polymer blend films based on chitosan (CH) and methylcellulose (MC) were prepared in various compositions by the solution cast technique. The features of structure and complexation of the blend polymer films were studied using X-ray diffraction (XRD) and Fourier transform infrared (FTIR) analysis. The shift of FTIR peaks of the amino groups of CH and the hydroxyl groups of MC reveals the formation of interchain hydrogen-bonding between CH and MC chains in blend films. From the XRD pattern, the semi-crystalline structure of CH was depressed with the addition of MC and shows the CH:MC blend system with ratio 75:25 has the minimum degree of crystallinity. The highest room temperature conductivity was found to be 0.05 × 10 −6 S cm −1 for 75CH:25MC blend polymer composition. The dc conductivity exhibits Arrhenius-type behaviour with temperature. The drastic increase in conductivity up to 37.92 × 10 −6 S cm −1 at 373 K, can be explained by free volume model. The highest value of electrical conductivity for all prepared samples was associated with the minimum value of activation energy.

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Section: Xrd Studiesmentioning

confidence: 68%

Structural and electrical conductivity of CH:MC bio-poly-blend films: optimize the perfect composition of the blend system

2019

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“…In general, the ionic conductivity ( σ ) depends on three factors: the concentration ( n i ), mobility ( q i ), and charge ( u i ) of mobile ions. The relationship between them can be described by [ 48 ]:

…”

Section: Resultsmentioning

confidence: 99%

Ionic Liquid-Incorporated Zn-Ion Conducting Polymer Electrolyte Membranes

et al. 2020

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In this study, novel ionic liquid-incorporated Zn-ion conducting polymer electrolyte membranes containing polymer matrix poly (vinylidene fluoride-hexafluoropropylene) (PVdF-HFP) and 1-ethyl-3-methylimidazolium trifluoromethanesulfonate (EMITf), along with zinc trifluoromethanesulfonate Zn(Tf)2, are prepared and investigated. It is ascertained that the optimal membrane ILPE-Zn-4 (the mass ratio of EMITf:Zn(Tf)2:PVDF-HFP is 0.4:0.4:1), with abundant nanopores, exhibits a high amorphousness. At room temperature, the optimized electrolyte membrane offers a good value of ionic conductivity (~1.44 × 10−4 S cm−1), with a wide electrochemical stability window (~4.14 V). Moreover, the electrolyte membrane can sustain a high thermal decomposition temperature (~305 °C), and thus its mechanical performance is sufficient for practical applications. Accordingly, the ionic liquid-incorporated Zn-ion conducting polymer electrolyte could be a potential candidate for Zn-based energy storage applications.

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“… PVA – PVP – L-Asparagine doped NH 4 Br 2.34 × 10 −4 Proton battery [33] 2. PVA – Mg(Tf) 2 -EMITf 2.1 × 10 −4 Mg ion battery [34] 3. PVA – Poly vinylidene Fluoride -LiCF 3 SO 3 -SiO 2 9.4 × 10 −4 Characterization only [35] 4.…”

Section: Main Textmentioning

confidence: 99%

“…Thus, it is noticed that irrespective of the types of electrolyte, PVA based electrolytes are extensively studied for the fabrication of various electrochemical and energy storage devices [ 33 , 34 , 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 ].…”

Section: Main Textmentioning

confidence: 99%

Effect of incorporation of different plasticizers on structural and ion transport properties of PVA-LiClO4 based electrolytes

Hirankumar¹,

Mehta

2018

Heliyon

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To date high ionic conducting polymer electrolytes are of great interest because of their potential applications in various electrochemical devices such as batteries, fuel cells, solar cells and super capacitors etc., as electrolytes. Ion conduction through polymer electrolytes can occur mostly in amorphous environment exists above their glass transition temperature (Tg). In order to improve ionic conductivity, many approaches such as addition of plasticizer, blending of polymers, nano composite have been employed. This paper reviews the influence of different plasticizers/additives on the ion transport mechanism of Poly(vinyl alcohol) (PVA)-LiClO4 polymer electrolytes since poly vinyl alcohol is a semi crystalline, synthetic biodegradable polymer and lithium perchlorate is one of the most moisture resistant lithium salts. This review also reveals the relation between dynamical disorder in polymer electrolyte with ionic conductivity.

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Structural, electrical, and electrochemical properties of PVA-based biodegradable gel polymer electrolyte membranes for Mg-ion battery applications

Cited by 39 publications

References 51 publications

Structural and electrical conductivity of CH:MC bio-poly-blend films: optimize the perfect composition of the blend system

Structural and electrical conductivity of CH:MC bio-poly-blend films: optimize the perfect composition of the blend system

Ionic Liquid-Incorporated Zn-Ion Conducting Polymer Electrolyte Membranes

Effect of incorporation of different plasticizers on structural and ion transport properties of PVA-LiClO4 based electrolytes

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