Performance of acrylate-poly(ethylene oxide) polymer electrolytes in lithium batteries

Borkowska, R.; Laskowski, J.; Płocharski, Janusz; Przyłuski, J.; Wieczorek, W.

doi:10.1007/bf00266120

Cited by 29 publications

(17 citation statements)

References 4 publications

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“…After 30 years hardworking, the most striking advancement in the polymer electrolytes have attained through the incorporation of substantial amounts of plasticizers in the polymer matrix to form gel polymer electrolyte (GPE). The use of PMMA as a main body for gel polymer electrolyte was previously reported by Iijima et al4 and by Bohnke et al5 They reported ionic conductivity of the order of 10 −3 S cm −1 at 25°C for a homogeneous and transparent GPE. However, all the plasticized polymer electrolytes suffer from poor, gel like mechanical property; producing freestanding film is not possible at higher plasticizer concentration.…”

Section: Introductionmentioning

confidence: 82%

Gel polymer electrolyte with semi‐IPN fabric for polymer lithium‐ion battery

Yanming

Wang

2011

J of Applied Polymer Sci

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A new type of semi-IPN gel electrolyte was prepared by thermal polymerization in this article. At first, the crosslinkable PEG200 (MXPEG) was prepared by condensation reaction, then the crosslinkable components were blent with PMMA and heated under vacuum to form polymer blends with semi-IPN fabric. Differential scanning calorimetry and X-ray diffraction spectroscopy were used to investigate the thermal properties and crystalline/amorphous structure of the prepared polymer blends. With semi-IPN fabric, they present amorphous absolutely. For semi-IPN gel electrolyte, the mechanical and the electrochemical properties are varied with the quantity of absorbed liquid electrolyte. Ion-conductivity behavior for semi-IPN gel electrolyte measured by means of AC impedance spectrum showed that the best data was 1.62 Â 10 À3 S cm À1 at room temperature, and Arrhenius-type relationship was obeyed in the temperature dependence of ionic conductivity. In addition, the electrochemical stability window of the semi-IPN gel electrolyte was 4.6 V. All the properties showed that the prepared semi-IPN gel electrolyte was expected to have applications of electrolyte for lithium-ion polymer secondary batteries.

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Section: Introductionmentioning

confidence: 82%

Gel polymer electrolyte with semi‐IPN fabric for polymer lithium‐ion battery

Yanming

Wang

2011

J of Applied Polymer Sci

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“…[8][9][10] Among those, poly(ethylene oxide) (PEO)-based electrolytes are the most extensively studied. In PEO/alkali complexes, ionic conduction is limited to the amorphous regions and the inherent high crystallizability of PEO is known to be a main reason for the relatively poor ionic conductivitiesU [11][12][13][14][15] Many investigations have therefore focused primarily on the enhancement of the room-temperature conductivity taking various approaches such as using blendsS [16][17][18][19] random copolymers, 20 and comb-branch polymers. [21][22][23][24] All these approaches have been focused on reducing the crystallinity of polymers.…”

Section: Introductionmentioning

confidence: 99%

Ionic conductivities of the LiCF3SO3 complexes with liquid crystalline aromatic polyesters having oligo(oxyethylene) pendants

2004

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We have synthesized new aromatic polyesters (DiPEG-HQ and DiPEG-BP) by condensation polymerization of a terephthalic acid derivative bearing a pendant oligo(oxyethylene) ( = 7, = 350), which has a methoxy terminal group, and two different aromatic diols, hydroquinone and 4,4´-biphenol. The synthesized polymers were characterized by differential scanning calorimetry (DSC), polarizing microscopy, and X-ray diffractometry for their liquid crystallinity (LC), thermal transitions, and structural morphologies in mesophases. The morphology of the LC phases depends strongly on the length of the rigid backbone repeating unit. The DiPEG-BP polymer having a longer repeating unit exhibits both layered and nematic structures before isotropization, whereas the DiPEG-HQ polymer having a shorter repeating unit shows only the layered structure in the mesophase. We found that the layer spacing for DiPEG-HQ is larger than that for DiPEG-BP. Both polymers easily form complexes with LiCF 3 SO 3 ; we studied this complex formation by FT-IR spectroscopy. The layer spacing of the polymer-electrolyte composites increases upon increasing the amount of the lithium salt. The polymer/salt electrolyte mixtures we investigated at molar ratios of EO:salt in the range of 5-20 exhibit electrical conductivity values at 40 o C of 2.4Ý 10 -5 and 1.1Ý 10 -5 S/cm for DiPEG-HQ/LiCF 3 SO 3 and DiPEG-BP/LiCF 3 SO 3 , respectively. At 80 o C, these values are higher: 4.6 Ý 10 -4 and 2.5Ý 10 -4 S/cm, respectively. The activation energy of conductivity depends strongly on the salt concentration.

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“…[43] The large and stable amorphous phase is of great importance for the electronic and electrical properties of the PEO-PVP blends, due to inclusion of the segmental motion of the polymer chains to the conductivity mechanisms, thereby enhancing the ionic conductivity. [7,15,[53][54][55] Generally, for the considered type of Na þ ion-polymer complexes based on PEO-PVP polymer blends it has been established that the amorphousness favors the ion transport, [9,43,56] in contrast to opposite findings for other PEO-based salt-dissolved SPEs with alkali ions where the ionic conductivity in the crystalline phase of SPE can be greater than that in the amorphous form of the same SPE material, for example, ref. [57] .…”

Section: Resultsmentioning

confidence: 99%

PEO‐PVP‐NaIO₄ Ion‐Conducting Polymer Electrolyte: Inspection for Ionic Space Charge Polarization and Charge Trapping

Hadjichristov

Ivanov

Marinov

et al. 2019

Physica Status Solidi (a)

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Ion‐conductive solid polymer electrolytes composed from blends of poly(ethylene oxide) (PEO) and poly(vinylpyrrolidone) (PVP), as complexed with the ionic compound sodium periodate (NaIO4), are inspected for the presence of electric charge trapping (CT) and ionic space charge polarization (SCP) under static electric field. Thin films (110 μm‐thick) of these materials are produced at a ratio of the polymers PEO:PVP = 70:30 wt%, the concentration of NaIO4 is 5, 7.5, or 10 wt%. The electrical current at room temperature, as well as the charging/discharging in the films are studied as depending on applied voltage and time. At a detectable level, no SCP and CT processes in PEO‐PVP‐NaIO4 are evidenced, in contrast to identical experiments by PEO film under the same experimental conditions. The largely reduced SCP and CT are of importance for electrochemical applications of the considered ion‐conducting PEO‐PVP‐NaIO4 ion‐polymer coupled system.

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Performance of acrylate-poly(ethylene oxide) polymer electrolytes in lithium batteries

Cited by 29 publications

References 4 publications

Gel polymer electrolyte with semi‐IPN fabric for polymer lithium‐ion battery

Gel polymer electrolyte with semi‐IPN fabric for polymer lithium‐ion battery

Ionic conductivities of the LiCF3SO3 complexes with liquid crystalline aromatic polyesters having oligo(oxyethylene) pendants

PEO‐PVP‐NaIO₄ Ion‐Conducting Polymer Electrolyte: Inspection for Ionic Space Charge Polarization and Charge Trapping

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Performance of acrylate-poly(ethylene oxide) polymer electrolytes in lithium batteries

Cited by 29 publications

References 4 publications

Gel polymer electrolyte with semi‐IPN fabric for polymer lithium‐ion battery

Gel polymer electrolyte with semi‐IPN fabric for polymer lithium‐ion battery

Ionic conductivities of the LiCF3SO3 complexes with liquid crystalline aromatic polyesters having oligo(oxyethylene) pendants

PEO‐PVP‐NaIO4 Ion‐Conducting Polymer Electrolyte: Inspection for Ionic Space Charge Polarization and Charge Trapping

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PEO‐PVP‐NaIO₄ Ion‐Conducting Polymer Electrolyte: Inspection for Ionic Space Charge Polarization and Charge Trapping