Sulfonation of alginate grafted with polyacrylamide as a potential binder for high-capacity Si/C anodes

Gendensuren, Bolormaa; He, Chengxiang; Oh, Eun‐Suok

doi:10.1039/d0ra07557d

Cited by 12 publications

(6 citation statements)

References 46 publications

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“…Overall mechanical properties were also improved, which agrees with studies of double network hydrogels such as alginate and PAAm studied by Sun et al [ 86 ]. More recently, Gendensuren et al [ 87 ] sulfonated the alginate in their grafted network, further improving the adhesion and mechanical properties as well as increasing the ionic conductivity of the binder and overall electrode.…”

Section: Typical Binders For Electrodesmentioning

confidence: 99%

Polymer Binders: Characterization and Development toward Aqueous Electrode Fabrication for Sustainability

Cholewinski

Uceda

et al. 2021

Polymers

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Binders play an important role in electrode processing for energy storage systems. While conventional binders often require hazardous and costly organic solvents, there has been increasing development toward greener and less expensive binders, with a focus on those that can be processed in aqueous conditions. Due to their functional groups, many of these aqueous binders offer further beneficial properties, such as higher adhesion to withstand the large volume changes of several high-capacity electrode materials. In this review, we first discuss the roles of binders in the construction of electrodes, particularly for energy storage systems, summarize typical binder characterization techniques, and then highlight the recent advances on aqueous binder systems, aiming to provide a stepping stone for the development of polymer binders with better sustainability and improved functionalities.

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Section: Typical Binders For Electrodesmentioning

confidence: 99%

Polymer Binders: Characterization and Development toward Aqueous Electrode Fabrication for Sustainability

Cholewinski

Uceda

et al. 2021

Polymers

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“…34,35 Also, the negatively charged functional groups of sulfonated segments are responsible for the superior performance. 60 The cycling performance of the half-cells using carbon fabric as the current collector comprising PVDF and PVDF-HFP-g-PSSA polymer binders is illustrated in Figure 9a,b up to 300 cycles. The first 50 cycles were carried out with 0.2 C, followed by the remaining cycles being performed at a higher C-rate of 0.5 C. The capacity of a structural half-cell, where cathodic materials were held together with the pure PVDF binder, was initially 195 mAh g −1 at 0.2 C, but it smoothly decreased over 50 charge/discharge cycles to 155 mAh g −1 (see Figure 9a).…”

Section: Electrochemicalmentioning

confidence: 99%

The Effect of Poly(vinylidene difluoride-co-hexafluoropropylene)-g-poly(styrene sulfonate) Binder and Carbon Fiber Current Collector on the Electrochemical Performance of LiFePO₄ Cathode for Lithium-Ion Batteries

Gorji,

Ghahramani,

Haghighi-Yazdi

2024

ACS Appl. Energy Mater.

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The current investigation explores the influence of the poly(vinylidene fluoride-co-hexafluoropropylene)-graf t-poly-(sodium styrenesulfonate) (PVDF-HFP-g-PSSA) binder on the electrochemical performance of LiFePO 4 electrodes using electrochemical measurements of cathodic half-cells. A comparison is made between the electrochemical enhancements of the brush copolymer synthesized by using the atom transfer radical polymerization (ATRP) process and the traditional PVDF binder material. Substituting conventional aluminum current collectors with carbon fiber current collectors effectively enhances the active surface area of the electrodes. The outcomes of the research illustrate that the utilization of the PVDF-HFP-g-PSSA binder leads to reduced concentration polarization and boosted intercalation kinetics, particularly at higher cycle numbers. The cathode comprising the PVDF-HFP-g-PSSA copolymer binder displays a remarkably high initial discharge capacity value of 340 mAh g −1 when subjected to a 0.1 C current density. Additionally, after 300 charge/discharge cycles, a discharge capacity value of 143 mAh g −1 is observed at 0.5 C. Furthermore, the initial capacity at 3 C is 195 mAh g −1 and reaches 160 mAh g −1 after 100 cycles. It is noteworthy that the Coulombic efficiency of this cathode is 100% even after 300 cycles. The synergistic impact of utilizing carbon fibers and sulfonated binders can enhance the potential of structural batteries over conventional lithium-ion batteries (LIBs), enabling them to be used for high-efficiency battery designs suitable for electric vehicles.

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“…Moreover, the used solvent of N -methyl-2-pyrrolidone (NMP) during the PVDF manufacturing process is not environmentally friendly . To circumvent the drawbacks of PVDF, a series of aqueous-based binders are investigated, including polyacrylic acid (PAA), carboxymethyl cellulose (CMC), , alginate, guar gum, and chitosan . Apart from the above linear binders, polymers with cross-linked and network structures are also introduced into Si-based anodes, such as PAA/PANI (polyaniline), Arabic gum/PAA, CMC/PAM (polyacrylamide), guar gum/PAM, and κ-carrageenan gum (KCG)/konjac gum (KG) .…”

Section: Introductionmentioning

confidence: 99%

Random Copolymer Hydrogel as Elastic Binder for the SiO_x Microparticle Anode in Lithium-Ion Batteries

Weng

Chen

et al. 2022

ACS Appl. Mater. Interfaces

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Silicon suboxides (SiO x ) have been widely concerned as a practical anode material for the next-generation lithium-ion batteries due to their relatively high theoretical capacity and lower volume change compared to silicon (Si). Nevertheless, traditional binder poly(vinylidene difluoride) (PVDF) still cannot hold the integrity of the SiO x particle due to its weak van der Waals force. Herein, a copolymer binder for SiO x microparticles is synthesized through a facile method of free radical polymerization between acrylamide (AM) and acrylic acid (AA). By adjusting the mass ratio of the AM/AA monomer, the copolymer binder can generate a covalent–noncovalent network with superior elastic properties from the synergistic effect. During electrochemical testing, the SiO x anode with the optimal copolymer binder (AM/AA = 3:1) delivered a reversible capacity of 734 mAh g–1 (two times that of commercial graphite) at 0.5C after 300 cycles. Thus, this work developed a green and effective strategy for synthesizing a water-soluble binder for Si-based anodes.

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Sulfonation of alginate grafted with polyacrylamide as a potential binder for high-capacity Si/C anodes

Abstract: A systematic approach for how to find an appropriate polymer binder for high-capacity LIB anodes is presented in this study.

Cited by 12 publications

References 46 publications

Polymer Binders: Characterization and Development toward Aqueous Electrode Fabrication for Sustainability

Polymer Binders: Characterization and Development toward Aqueous Electrode Fabrication for Sustainability

The Effect of Poly(vinylidene difluoride-co-hexafluoropropylene)-g-poly(styrene sulfonate) Binder and Carbon Fiber Current Collector on the Electrochemical Performance of LiFePO₄ Cathode for Lithium-Ion Batteries

Random Copolymer Hydrogel as Elastic Binder for the SiO_x Microparticle Anode in Lithium-Ion Batteries

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Sulfonation of alginate grafted with polyacrylamide as a potential binder for high-capacity Si/C anodes

Abstract: A systematic approach for how to find an appropriate polymer binder for high-capacity LIB anodes is presented in this study.

Cited by 12 publications

References 46 publications

Polymer Binders: Characterization and Development toward Aqueous Electrode Fabrication for Sustainability

Polymer Binders: Characterization and Development toward Aqueous Electrode Fabrication for Sustainability

The Effect of Poly(vinylidene difluoride-co-hexafluoropropylene)-g-poly(styrene sulfonate) Binder and Carbon Fiber Current Collector on the Electrochemical Performance of LiFePO4 Cathode for Lithium-Ion Batteries

Random Copolymer Hydrogel as Elastic Binder for the SiOx Microparticle Anode in Lithium-Ion Batteries

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The Effect of Poly(vinylidene difluoride-co-hexafluoropropylene)-g-poly(styrene sulfonate) Binder and Carbon Fiber Current Collector on the Electrochemical Performance of LiFePO₄ Cathode for Lithium-Ion Batteries

Random Copolymer Hydrogel as Elastic Binder for the SiO_x Microparticle Anode in Lithium-Ion Batteries