Vinyltriethoxysilane crosslinked poly(acrylic acid sodium) as a polymeric binder for high performance silicon anodes in lithium ion batteries

Zeng, Xiangyu; Shi, Yongji; Tang, Rongbiao; Wei, Liangming

doi:10.1039/c8ra04967j

Cited by 20 publications

(9 citation statements)

References 49 publications

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“…Wei et al prepared a vinyltriethoxysilane (VTES) crosslinked NaPAA polymer binder (PVTES‐NaPAA) for SiNP anodes by hydrolyzing the VTES component in the copolymer precursor (Figure 17D). 156 The crosslinked structure and large amount carboxyl groups made the PVTES‐NaPAA polymer a promising binder for SiNP anodes.…”

Section: Designing Of Polymer Binders For Si‐based Anodesmentioning

confidence: 99%

Section: Designing Of Polymer Binders For Si‐based Anodesmentioning

confidence: 99%

“…(D) The synthetic process of the PVTES-NaPAA binder. 156 Copyright 2018, The Royal Society of Chemistry mechanical properties and ability to suppress the volume change of Si particles. Finally, the highly crosslinked SA binder with 0.15 molar ratio of CaCl 2 showed the best cycling performance (reversible capacity of 2837.5 mA h g −1 after 200 cycles at a current of 0.42 A g −1 ) of Si anodes.…”

Section: Electrostatic Interactionmentioning

confidence: 99%

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Advances of polymer binders for silicon‐based anodes in high energy density lithium‐ion batteries

Zhao

Yue²,

Li³

et al. 2021

InfoMat

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226

151

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Conventional lithium‐ion batteries (LIBs) with graphite anodes are approaching their theoretical limitations in energy density. Replacing the conventional graphite anodes with high‐capacity Si‐based anodes represents one of the most promising strategies to greatly boost the energy density of LIBs. However, the inherent huge volume expansion of Si‐based materials after lithiation and the resulting series of intractable problems, such as unstable solid electrolyte interphase layer, cracking of electrode, and especially the rapid capacity degradation of cells, severely restrict the practical application of Si‐based anodes. Over the past decade, numerous reports have demonstrated that polymer binders play a critical role in alleviating the volume expansion and maintaining the integrity and stable cycling of Si‐based anodes. In this review, the state‐of‐the‐art designing of polymer binders for Si‐based anodes have been systematically summarized based on their structures, including the linear, branched, crosslinked, and conjugated conductive polymer binders. Especially, the comprehensive designing of multifunctional polymer binders, by a combination of multiple structures, interactions, crosslinking chemistries, ionic or electronic conductivities, soft and hard segments, and so forth, would be promising to promote the practical application of Si‐based anodes. Finally, a perspective on the rational design of practical polymer binders for the large‐scale application of Si‐based anodes is presented.

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Section: Designing Of Polymer Binders For Si‐based Anodesmentioning

confidence: 99%

Section: Designing Of Polymer Binders For Si‐based Anodesmentioning

confidence: 99%

Section: Electrostatic Interactionmentioning

confidence: 99%

See 1 more Smart Citation

Advances of polymer binders for silicon‐based anodes in high energy density lithium‐ion batteries

Zhao

Yue²,

Li³

et al. 2021

InfoMat

Self Cite

226

151

View full text Add to dashboard Cite

show abstract

“…These modification methods overcome some disadvantages of single polymers and improve the electrochemical performance of the Si‐based LIBs. However, most Si anodes with long cycling life usually have low Si mass loading for less than 1 mg cm −2 , and higher Si mass loading generally leads to fast capacity fade . Low Si mass loading results in low areal and volumetric capacity, and significantly limits the energy density of LIBs.…”

Section: Introductionmentioning

confidence: 99%

A Flexible and Conductive Binder with Strong Adhesion for High Performance Silicon‐Based Lithium‐Ion Battery Anode

Tang

Zheng

et al. 2020

ChemElectroChem

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Silicon is considered to be one of the most promising anode materials for lithium-ion batteries due to its high capacity. But the silicon anodes undergo huge volume changes during the charge and discharge process, leading to fast capacity fade of Si anodes. To solve this problem, we design a ternary polymer binder composed of poly (vinyl alcohol), poly(dopamine hydrochloride) and poly(3,4-ethylenedioxythiophene):poly (styrene sulfonate) for Si anodes. In this polymer composite binder, polydopamine and poly(vinyl alcohol) exhibit strong adhesion with the silicon particles and the copper foils. Additionally, poly (vinyl alcohol) compounded with poly (dopamine hydrochloride) shows high stretchability up to 243.7 %, which benefits for buffering large volume change of Si anodes during cycling. The conducting poly (3,4-ethylenedioxythiophene) : poly (styrene sulfonate) in this binder improves the rate performance. Using this multi-functional binder, the Si anodes show excellent cycling stability even under high Si mass loading.

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“…In addition, PAA is susceptible to various scalable polymerization techniques and versatile chemical modifications of its functional group, and exhibits water solubility. 20,28 Since the first application of PAA-based binders for Si anodes in 2010 by Yushin and coworkers, 18 they have been extensively investigated through various approaches such as copolymerization, 21,[29][30][31][32] grafting, 24,33 crosslinking, 22,[34][35][36][37][38][39][40][41] and blending. [42][43][44][45][46] One of the main objectives in these studies involved transformation of the rigid and brittle PAA binder into a more compliant and tough version that could suitably adapt to the stresses caused by the volume change.…”

Section: Introductionmentioning

confidence: 99%

In situ crosslinkable acrylic random copolymer binders for silicon anodes in lithium‐ion batteries

Lee

Preman

et al. 2022

Intl J of Energy Research

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Summary Silicon is in the spotlight as a promising anode material for next‐generation Li‐ion batteries. However, its practical application is limited by a rapid decay in capacity due to considerable volume changes. Rational design of binders that can exhibit strong adhesion and robust mechanical properties is crucial for overcoming such challenges. Herein, we synthesize a series of multifunctional acrylic random copolymers comprising various ratios of acrylic acid and glyceryl groups by free‐radical polymerization. The adhesive and mechanical properties of the binders are systematically modulated, and their impact on the electrochemical properties of a Si‐nanoparticle anode are investigated. Owing to the presence of both acrylic acid and hydroxyl groups, the copolymers containing 7 mol% and 25 mol% glyceryl group undergo in situ crosslinking under mild thermal treatment (70°C for 24 h). In particular, the copolymer containing 7 mol% glyceryl group exhibits the highest specific capacity and capacity retention (1170 mAh g−1 and 54% after 100 cycles at 0.5 A g−1, respectively), which is superior to those of a conventional poly(acrylic acid) binder (880 mAh g−1 and 52% after 100 cycles at 0.5 A g−1). The enhanced electrochemical properties attribute to the improved adhesive and mechanical properties enabled by the network structure.

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Vinyltriethoxysilane crosslinked poly(acrylic acid sodium) as a polymeric binder for high performance silicon anodes in lithium ion batteries

Abstract: The PVTES-NaPAA binder possesses a three-dimensional crosslinked network and exhibits an excellent cycling performance.

Cited by 20 publications

References 49 publications

Advances of polymer binders for silicon‐based anodes in high energy density lithium‐ion batteries

Advances of polymer binders for silicon‐based anodes in high energy density lithium‐ion batteries

A Flexible and Conductive Binder with Strong Adhesion for High Performance Silicon‐Based Lithium‐Ion Battery Anode

In situ crosslinkable acrylic random copolymer binders for silicon anodes in lithium‐ion batteries

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