Rheological behavior of gel polymer electrolytes: yield stress and viscoelasticity

Milian, Diego; Roux, Denis; Caton, François; Kissi, Nadia El

doi:10.1007/s00397-022-01338-z

Cited by 10 publications

(10 citation statements)

References 59 publications

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“…In order to have reproducible results, a slurry preparation protocol is followed to produce each of the samples before either rheology or electrochemical characterization. Slurry composition was taken from a previous study using the same experimental set-up (Choi et al 2020a), except for gelling agents presented in a previous study (Milián et al 2022 Germany) and ZnO (Alfa Aesar, United States) was added to the solution. The sample was mixed using a high shear homogenizer Ultra Turrax T25 (Ika, Germany) at a speed of 11 000 rpm for 1 minute to disperse the clay particles, thickening the mixture and forming a gel.…”

Section: Slurry Preparationmentioning

confidence: 99%

“…GPEs composition together with their rheological characterization can be found in (Milián et al 2022), where is reported that all GPEs were found to have a yield stress fluid behavior.…”

Section: Slurry Preparationmentioning

confidence: 99%

“…Vane geometry (4-blades, blade width = 24 mm, h = 45.5 mm), was specially designed to study slurries in this study ensuring a homogeneous shearing (Aït-kadi et al 2002) while avoiding slippage (Barnes and Nguyen 2001;Hermoso et al 2012). A scheme of the set-up can be found in a previous publication (Milián et al 2022). Transparent cup (D = 48 mm) is equipped with a grid (thickness = 2 mm), in order to eliminate slippage effects (Owens et al 2020).…”

Section: Rheometrymentioning

confidence: 99%

“…Geometrical factors permit to translate rotational speed and torque obtained with vane-in-cup, into shear rate and shear stress, respectively. Complete calculation of geometrical factors is available in a previous study (Milián et al 2022). The linear viscoelastic region (LVR) of slurries, in which viscoelastic properties are independent of sample deformation, was determined by performing a strain amplitude sweep from 0.1 to 1000% at 1 Hz.…”

Section: Rheometrymentioning

confidence: 99%

“…Steady shear rheometry was performed by decreasing shear rate steps in which the stress response is measured. As explained in one of our previous studies (Milián et al 2022), just decreasing shearing steps are considered in order to avoid heterogeneous shearing zones (Ovarlez et al 2013). Shear rate was decreased from 100 to 0.01 s -1 .…”

Section: Large Deformation Rheometrymentioning

confidence: 99%

See 4 more Smart Citations

Formulation and Characterization of Zinc Slurries for Zinc Slurry – Air Redox Flow Battery: A Rheological Approach

Milian¹,

Choi²,

Tsehaye³

et al. 2022

SSRN Journal

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Section: Slurry Preparationmentioning

confidence: 99%

“…GPEs composition together with their rheological characterization can be found in (Milián et al 2022), where is reported that all GPEs were found to have a yield stress fluid behavior.…”

Section: Slurry Preparationmentioning

confidence: 99%

Section: Rheometrymentioning

confidence: 99%

Section: Rheometrymentioning

confidence: 99%

Section: Large Deformation Rheometrymentioning

confidence: 99%

See 3 more Smart Citations

Formulation and Characterization of Zinc Slurries for Zinc Slurry – Air Redox Flow Battery: A Rheological Approach

Milian¹,

Choi²,

Tsehaye³

et al. 2022

SSRN Journal

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High‐Fluidity/High‐Strength Dual‐Layer Gel Electrolytes Enable Ultra‐Flexible and Dendrite‐Free Fiber‐Shaped Aqueous Zinc Metal Battery

Li,

Wang,

Luo

et al. 2024

Advanced Materials

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Fiber‐shaped aqueous zinc‐ion batteries (FAZIBs) with intrinsic safety, high theoretical capacity and superb omnidirectional flexibility hold promise for wearable energy‐supply devices. However, the interfacial separation of fiber‐shaped electrodes and electrolyte caused by Zn stripping process and severe Zn dendrites occurred at folded area under bending condition seriously restrict FAZIBs' practical application. Here, an advanced confinement encapsulation strategy is originally reported to construct dual‐layer gel electrolyte consisting of high‐fluidity polyvinyl alcohol‐Zn acetate inner layer and high‐strength Zn alginate outer layer for fiber‐shaped Zn anode. Benefiting from the synergistic effect of inner‐outer gel electrolyte and the formation of solid electrolyte interphase (SEI) on Zn anode surface by lysine additive, the resulting fiber‐shaped Zn‐Zn symmetric cell delivers long cycling life over 800 h at 1 mA·cm−2 with dynamic bending frequency of 0.1 Hz. The finite element simulation further confirms that dual‐layer gel electrolyte can effectively suppress the interfacial separation arising from the Zn stripping and bending process. More importantly, a robust twisted fiber‐shaped Zn/zinc hexacyanoferrate battery based on dual‐layer gel electrolyte is successfully assembled, achieving remarkable capacity retention of 97.7% after bending 500 cycles. Therefore, such novel dual‐layer gel electrolyte design paves the way for the development of long‐life fiber‐shaped aqueous metal batteries.This article is protected by copyright. All rights reserved

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Impact of salt and fillers on the rheological properties of polymer composites

Teymoory,

Driscoll,

Zhao

et al. 2024

Polymer Composites

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Polymer composites with salts or conductive fillers are promising for various solid‐state energy storage applications, where processability is often determined by their rheological properties. This study investigates the effect of lithium salts and conductive fillers on the rheological behavior of polylactic acid (PLA)‐based composites. We specifically examine how these additives influence complex viscosity and the interactions between the salt, fillers, and polymer. Our findings reveal that adding salt to the polymer reduces its viscosity, whereas adding conductive fillers imparts a shear‐thinning property, which is advantageous for thermal processing methods like thermal drawing, injection molding, or 3D printing. The combination of salt and conductive fillers results in multifunctional electrode‐electrolyte composites with enhanced shear‐thinning behavior and improved storage modulus. Characterizations through x‐ray diffraction, electrical measurements, and transmission electron microscopy link the electrical properties and morphology with rheological behavior. The formation of a robust filler network in these composites ensures stable viscoelastic behavior across a range of temperatures and frequencies, indicating their suitability for efficient manufacturing of polymer‐based solid‐state electrode‐electrolyte composites via thermal processing.Highlights Shear‐thinning behavior enhanced by conductive fillers. Viscosity increased with CB and CNT fillers, forming robust networks. Salt reduced viscosity but filler networks dominated flow behavior. Filler combinations led to stable viscoelastic properties across temperatures. Polymer electrolyte–electrode composites improved processability and storage modulus.

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Rheological behavior of gel polymer electrolytes: yield stress and viscoelasticity

Cited by 10 publications

References 59 publications

Formulation and Characterization of Zinc Slurries for Zinc Slurry – Air Redox Flow Battery: A Rheological Approach

Formulation and Characterization of Zinc Slurries for Zinc Slurry – Air Redox Flow Battery: A Rheological Approach

High‐Fluidity/High‐Strength Dual‐Layer Gel Electrolytes Enable Ultra‐Flexible and Dendrite‐Free Fiber‐Shaped Aqueous Zinc Metal Battery

Impact of salt and fillers on the rheological properties of polymer composites

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