Glycerol-crosslinked PEDOT:PSS as bifunctional binder for Si anodes: Improved interfacial compatibility and conductivity

Liu, Xuejiao; Zai, Jiantao; Iqbal, Asma; Chen, Ming; Ali, Nazakat; Qi, Rongrong; Qian, Xuefeng

doi:10.1016/j.jcis.2020.01.028

Cited by 56 publications

(45 citation statements)

References 29 publications

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“…Some conductive organic polymers (poly (3,4-ethylenedioxythiophene) doped with poly(styrene sulfonate) (PEDOT:PSS), polypyrrole (PPy)), inorganic materials (TiO 2 nanotubes), and other carbon-based materials (graphene, CNT) have been reported as conductive binders used to enhance the interfacial reactivity with Si and improve the cycling stability. [315] For example, Si nanoparticles were encapsulated in a porous 3D nanostructured conductive polyaniline (PANI) framework by a facile in situ polymerization process (Figure 20a,b). [316] The conductive polymer matrix with strong interaction with Si nanoparticles was found to provide fast ionic/electronic diffusion channels and sufficient free space for Si volume expansion.…”

Section: Conductive Bindermentioning

confidence: 99%

Recent Advances in Silicon‐Based Electrodes: From Fundamental Research toward Practical Applications

et al. 2021

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Section: Conductive Bindermentioning

confidence: 99%

Recent Advances in Silicon‐Based Electrodes: From Fundamental Research toward Practical Applications

et al. 2021

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“…Well‐preserved integrity of the assembled anode material and the SEI films of Si@void@C particles could afford an excellent cycle life and rate ability under deep charge/discharge cycling. [ 56,57 ]…”

Section: Resultsmentioning

confidence: 99%

Facile and Scalable Synthesis of Si@void@C Embedded in Interconnected 3D Porous Carbon Architecture for High Performance Lithium‐Ion Batteries

Tan

Liu

et al. 2021

Part & Part Syst Charact

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Si‐based materials possess huge potential as an excellent anode material for Li‐ion batteries. However, how to realize scalable synthesis of Si‐based anode with a long cycling life and high‐performance is still a critical challenge. Here a water‐in‐oil microemulsion process followed by UV illumination, calcination, and hydrothermal method to produce yolk‐shell Si@void@C embedded in interconnected 3D porous carbon network architecture using silicon nanoparticles is reported. As a result, the sample Si@void@C/C‐2 electrode has achieved a reversible capacity of 1160 mA h g−1 at 0.2 A g−1 after 300 cycles and a stable long cycling life of 480 mA h g−1 at 1 A g−1 after 1000 cycles. A full battery with the synthesized anode shows a capacity of 128 mA h g−1 at 0.2 A g−1 as well as good cycling stability after 1100th cycles. Such excellent electrochemical performance is ascribed to its unique structure, the yolk‐shell void space, highly robust carbon shells and interconnected porous carbon nets that can improve the conductivity of the electrode, buffer the volume expansion, and also suppress Si nanoparticles stress variation. This water‐in oil system makes it possible for mass production of environmentally friendly synthesis of core–shell structure.

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“…42% of the initial capacitance were found in the 200th cycle. PEDOT cross-linked with glycerol with PSS as counter anion has been suggested for a negative silicon electrode (Liu et al 2020a). After 200 cycles the electrode had 68.3% of its initial capacitance left.…”

Section: Auxiliary Components and Functionsmentioning

confidence: 99%

Intrinsically conducting polymers and their combinations with redox-active molecules for rechargeable battery electrodes: an update

Kondratiev

Holze

2021

Chem. Pap.

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Intrinsically conducting polymers and their copolymers and composites with redox-active organic molecules prepared by chemical as well as electrochemical polymerization may yield active masses without additional binder and conducting agents for secondary battery electrodes possibly utilizing the advantageous properties of both constituents are discussed. Beyond these possibilities these polymers have found many applications and functions for various further purposes in secondary batteries, as binders, as protective coatings limiting active material corrosion, unwanted dissolution of active mass ingredients or migration of electrode reaction participants. Selected highlights from this rapidly developing and very diverse field are presented. Possible developments and future directions are outlined.

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Glycerol-crosslinked PEDOT:PSS as bifunctional binder for Si anodes: Improved interfacial compatibility and conductivity

Cited by 56 publications

References 29 publications

Recent Advances in Silicon‐Based Electrodes: From Fundamental Research toward Practical Applications

Recent Advances in Silicon‐Based Electrodes: From Fundamental Research toward Practical Applications

Facile and Scalable Synthesis of Si@void@C Embedded in Interconnected 3D Porous Carbon Architecture for High Performance Lithium‐Ion Batteries

Intrinsically conducting polymers and their combinations with redox-active molecules for rechargeable battery electrodes: an update

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