Mechanochemical Synthesis of PEDOT:PSS Hydrogels for Aqueous Formulation of Li-Ion Battery Electrodes

Sandu, Georgiana; Ernould, Bruno; Rolland, Julien; Cheminet, Nathalie; Brassinne, Jérémy; Das, P.; Filinchuk, Yaroslav; Cheng, Luhua; Komsiyska, Lidiya; Dubois, Philippe; Melinte, Sorin; Lazzaroni, Roberto; Vlad, Alexandru

doi:10.1021/acsami.7b08937

Cited by 46 publications

(26 citation statements)

References 42 publications

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“…The resistance R of the PEDOT:PSS thin layers could be reduced from 10 6 to 10 3 after replacing methanol by ethylene glycol, respectively . Recently, researcher started to investigate that taking more PSS away can increase the conductivity of PEDOT:PSS film, which is isolating by nature . PEDOT can act as conductive binder of the Si aggregates to improve their cycling stability .…”

Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

“…Recently, researcher started to investigate that taking more PSS away can increase the conductivity of PEDOT:PSS film, which is isolating by nature . PEDOT can act as conductive binder of the Si aggregates to improve their cycling stability . On the other hand, PSS shell has two outstanding advantages for battery applications, its ionic conductivity and its electrically isolating nature to prevent the electron leakage between the Si anode and the electrolyte.…”

Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

“…Since decreasing polymer binder‐particle cohesion after the electrolyte decomposition, it is preferred that electrolyte to have a limited binder swelling. A strategy hereby is to form PEDOT:PSS hydrogels . The coordination of SO 3− units of PSS by metallic ions such as Fe +3 is considered as the main process in the gel formation …”

Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

“…A strategy hereby is to form PEDOT:PSS hydrogels . The coordination of SO 3− units of PSS by metallic ions such as Fe +3 is considered as the main process in the gel formation …”

Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

“…The dissolution of the metallic iron (Fe 0 ) is supported by the acidity nature of the PEDOT:PSS solution (pH of 2‐3) and then these iron ions coordinated by sulfonate groups of the PSS chain. This coordination network enables a stable structure and provides a homogeneous polymer−metal framework including all the initially present water (of up to 99% by mass) …”

Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

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An overview on efforts to enhance the Si electrode stability for lithium ion batteries

2019

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This report summarizes the challenges and developments related to the cycle stability of Si anodes. It describes the two-component material concepts using polymer blends and the approaches to material optimization for more stable Si anodes. Since the anode behavior also depends strongly on the Si particle size (and in polymer mixtures no uniform Si particle size is given), the properties of the Si anodes depending on the Si particle size and the underlying fundamental processes at the solid-electrolyte interface were described shortly. Bicomponent silicon-based composites (carbon additives, inorganic nanoparticles and polymers) on the anode behavior were compared by two properties: specific capacity and cycle number of the anodes. This article focuses on Si-polymer blends where the polymer can act as a binder or/and as a solid-state electrolyte. To help further the understanding the role of polymer we have gathered together useful data from the literature on solubilities, flexibility and hardness for the polymers generally used. We offer a perspective for polymer hydrogels that will enable a promising material composition for stable Si anodes. K E Y W O R D Sconductive polymers, hydrogels, lithium ion battery, silicon anode, solid-electrolyte interphase 2 | CHALLENGES FOR SI ELECTRODES Si based anodes are quite instable, capacity decay, cracks on anode, failure of electrical conductivity and inhibition are problems to be solved.

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Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

“…A strategy hereby is to form PEDOT:PSS hydrogels . The coordination of SO 3− units of PSS by metallic ions such as Fe +3 is considered as the main process in the gel formation …”

Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

Section: Efforts To Enhance the Si Electrode Stabilitymentioning

confidence: 99%

See 3 more Smart Citations

An overview on efforts to enhance the Si electrode stability for lithium ion batteries

2019

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Ultra‐High Electrical Conductivity in Filler‐Free Polymeric Hydrogels Toward Thermoelectrics and Electromagnetic Interference Shielding

Wang

et al. 2022

Advanced Materials

124

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Conducting hydrogels have attracted much attention for the emerging field of hydrogel bioelectronics, especially poly(3,4‐ethylenedioxythiophene): poly(styrene sulfonate) (PEDOT:PSS) based hydrogels, because of their great biocompatibility and stability. However, the electrical conductivities of hydrogels are often lower than 1 S cm−1 which are not suitable for digital circuits or applications in bioelectronics. Introducing conductive inorganic fillers into the hydrogels can improve their electrical conductivities. However, it may lead to compromises in compliance, biocompatibility, deformability, biodegradability, etc. Herein, a series of highly conductive ionic liquid (IL) doped PEDOT:PSS hydrogels without any conductive fillers is reported. These hydrogels exhibit high conductivities up to ≈305 S cm−1, which is ≈8 times higher than the record of polymeric hydrogels without conductive fillers in literature. The high electrical conductivity results in enhanced areal thermoelectric output power for hydrogel‐based thermoelectric devices, and high specific electromagnetic interference (EMI) shielding efficiency which is about an order in magnitude higher than that of state‐of‐the‐art conductive hydrogels in literature. Furthermore, these stretchable (strain >30%) hydrogels exhibit fast self‐healing, and shape/size‐tunable properties, which are desirable for hydrogel bioelectronics and wearable organic devices. The results indicate that these highly conductive hydrogels are promising in applications such as sensing, thermoelectrics, EMI shielding, etc.

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Boosting the Performance of PEDOT:PSS Based Electronics Via Ionic Liquids

Li,

Pang,

Wang

et al. 2024

Advanced Materials

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The conducting polymer poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) offers superior advantages in electronics due to its remarkable combination of high electrical conductivity, excellent biocompatibility, and mechanical flexibility, making it an ideal material among electronic skin, health monitoring, and energy harvesting and storage. Nevertheless, pristine PEDOT:PSS films exhibit limitations in terms of both low conductivity and stretchability, while conventional processing techniques cannot enhance these properties simultaneously, facing the dilemma that highly conductive interconnected PEDOT:PSS domains are susceptible to tensile strain. Via modifying PEDOT:PSS with ionic liquids (ILs), not only a synergistic enhancement of the electrical and mechanical properties can be achieved, but also the requirements for the printable bioelectronic are satisfied. In this comprehensive review, we have undertaken the task of providing a thorough examination of the mechanisms and applications of ILs as modifiers for PEDOT:PSS. First, the theoretical mechanisms governing the interactions between ILs and PEDOT:PSS is discussed detailly. Then, we have reviewed the enhanced properties and the elucidation of the underlying mechanisms achieved through the incorporation of ILs. Next, specific applications of ILs‐modified PEDOT:PSS relevant to bioelectronic devices are presented. Lastly, we offer a concise summary and engage in a discussion regarding the opportunities and challenges in this exciting field.This article is protected by copyright. All rights reserved

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Mechanochemical Synthesis of PEDOT:PSS Hydrogels for Aqueous Formulation of Li-Ion Battery Electrodes

Cited by 46 publications

References 42 publications

An overview on efforts to enhance the Si electrode stability for lithium ion batteries

An overview on efforts to enhance the Si electrode stability for lithium ion batteries

Ultra‐High Electrical Conductivity in Filler‐Free Polymeric Hydrogels Toward Thermoelectrics and Electromagnetic Interference Shielding

Boosting the Performance of PEDOT:PSS Based Electronics Via Ionic Liquids

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