Cross-Linked Sodium Alginate–Sodium Borate Hybrid Binders for High-Capacity Silicon Anodes in Lithium-Ion Batteries

Li, Jianbin; Hu, Xianchao; Zhao, Hongshun; Ren, Yurong; Huang, Xiaobing

doi:10.1021/acs.langmuir.1c02751

Cited by 17 publications

(10 citation statements)

References 46 publications

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“…The SEI film of the PI-COOH binder electrode remained stable, so R SEI and R CT remained at a low level, providing relatively stable electrochemical and cycling performance. However, the PI binder electrode is difficult to form a stable SEI film, which leads to the consumption of electrolyte, the continuous growth of SEI, and the lithium dendrite on the surface of the lithium foil, which seriously degrades the battery performance as shown in Figure …”

Section: Results and Discussmentioning

confidence: 99%

“…To meet the ever increasing demands of portable electronics requirement for higher energy and power densities, high-performance materials development is imperative for lithium-ion batteries (LIBs). Silicon anode materials show the brightest future owing to their super high theoretical capacity (4200 mAh g –1 for Li 22 Si 5 ), − relatively low discharge potential (∼0.4 V versus Li + /Li), − and rich abundance in the earth. − Nevertheless, the commercial application of silicon anode materials is still hindered with the challenges related to the huge volume expansion. − The solid electrolyte interface (SEI) and electrode structure are damaged due to tremendous volume change of silicon anode materials during Li + lithiation and delithiation processes, which seriously deteriorate the lifespan of the lithium-ion battery. − Various strategies have been adopted to ameliorate these issues, such as controlling the morphology of silicon anode materials, − using late-model electrode structures, − and employing high-performance binders. − …”

Section: Introductionmentioning

confidence: 99%

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Carboxyl Function Group Introduced to Polyimide Binders for Silicon Anode Materials

Zhang

et al. 2023

Energy Fuels

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Silicon has been considered as one of the most promising candidate anode material for Li-ion batteries due to its high theoretical specific capacity. Nevertheless, its low cycling performance due to the huge volume change during cycling hinders the commercial application of silicon anodes. Binders play a crucial role in Li-ion batteries and can effectively relieve the volumetric expansion stress of silicon anodes. Herein, we developed a polyimide binder with an introduced carboxyl group (PI-COOH). The introduced −COOH group can effectively bond with the oxide layer on the silicon surface through forming improved interface stability and then reducing the damage of the solid electrolyte interface film during cycling. Combined with the excellent intrinsic mechanical and thermodynamic properties of polyimide, the as-prepared PI-COOH binder significantly improved the cycling stability and rate performance of silicon anode.

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Section: Results and Discussmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carboxyl Function Group Introduced to Polyimide Binders for Silicon Anode Materials

Zhang

et al. 2023

Energy Fuels

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“…However, the huge volume expansion of Si anode during repeated lithiation/delithiation process can lead to LIBs with low cycle life. [179] To solve such problems, Li et al [180] condensed the inorganic cross-linker sodium borate with the commonly used binder sodium alginate through an esterification reaction to obtain the product (SA-SB) with high mechanical properties and peel strength (as shown in Figure 15a,b). Electrochemical test results showed that since SA-SB binder helped to maintain the structural stability of the Si anode during long cycling, the capacity retention of the Si anode using the SA-SB binder was 64.1% at a current density of 0.2 A g −1 after 100 cycles, while the SA-SB binder could promote the formation of stable SEI film, thus further improving the CE.…”

Section: Bindermentioning

confidence: 99%

mentioning

confidence: 99%

Boron‐Based High‐Performance Lithium Batteries: Recent Progress, Challenges, and Perspectives

Tan

Wang

et al. 2023

Advanced Energy Materials

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With the development of energy storage technology, the demand for high energy density and high security batteries is increasing, making the research of lithium battery (LB) technology an extremely important pursuit. However, the poor structural stability of electrode materials, high interfacial impedance between electrolyte and electrode, and the growth of lithium dendrites have seriously hindered the commercialization of LBs. Recently, due to their unique electronic structures and hybrid forms, boron‐based materials have been widely used in different LB components, such as electrodes, electrolytes, separators, additives, and binders, to resolve these problems. Here, a basic understanding of boron and boron‐based materials is first introduced. Subsequently, the recent research progress on the application of boron in each component of the LB is summarized, aiming to understand the hybrid forms of boron and their potential for use in LB materials. Finally, some new strategies and perspectives on the application of boron in LB materials are proposed. Here, the aim is to provide a clear insight on the study of boron in energy storage materials and contribute to the promotion of further research in this area.

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“…Furthermore, water-soluble binders (such as CMC, poly(vinyl alcohol) (PVA), etc. ) − have privileges in expanding their application toward advanced Si anodes with huge volume expansion. Ascribed to the abundant carboxylic or hydroxyl groups, these binders, different from PVdF, intensively interact with the Si particles and thus efficiently buffer the volume changes of the material, which hence results in enhanced cycle performances.…”

Section: Introductionmentioning

confidence: 99%

White Latex: Appealing “Green” Alternative for PVdF in Electrode Manufacturing for Sustainable Li-Ion Batteries

Sandaruwan

Wang

et al. 2022

Langmuir

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Nowadays, poly(vinylidene fluoride) (PVdF) has been dominantly utilized as a polymeric binder in commercialized Li-ion batteries. However, standardized PVdF-based electrode manufacturing seems cost-intensive and environmentally hazardous, which relies on the usage of toxic N-methyl-2-pyrrolidone (NMP) as a dispersant. In view of cost control and environmental awareness, switching to a water-processable green binder, as a substitute for PVdF, has been imperative with realistic significance. Herein, commercially available white latex (WL), containing poly(vinyl acetate) as a staple ingredient, was directly used as an alternative aqueous binder for PVdF in the fabrication of graphite/Li4Ti5O12-based lithium-ion anodes. WL exhibits robust adhesion of the electrode coating to the current collector; meanwhile, the restricted electrolyte swelling of the binder is verified by in situ electrochemical dilatometry. Outperforming PVdF, WL endows graphite with extensive surface coverage by the binding agent, dramatically reducing irreversible decomposition of the electrolyte (SEI formation) on graphite. Consequently, the WL-based graphite anode delivers the highest initial coulombic efficiency (CE) of 92% and remarkable long cyclic stability with a high capacity retention of 332.7 mAh/g, compared to the PVdF- and carboxymethyl cellulose (CMC)-based ones. Moreover, WL is also compatible with Li4Ti5O12, endowing it with more stable cycling behavior than that of the counterparts prepared with both PVdF and even CMC. Our described WL represents an appealing “green” alternative for PVdF in manufacturing sustainable and ecofriendly energy storage devices.

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Cross-Linked Sodium Alginate–Sodium Borate Hybrid Binders for High-Capacity Silicon Anodes in Lithium-Ion Batteries

Cited by 17 publications

References 46 publications

Carboxyl Function Group Introduced to Polyimide Binders for Silicon Anode Materials

Carboxyl Function Group Introduced to Polyimide Binders for Silicon Anode Materials

Boron‐Based High‐Performance Lithium Batteries: Recent Progress, Challenges, and Perspectives

White Latex: Appealing “Green” Alternative for PVdF in Electrode Manufacturing for Sustainable Li-Ion Batteries

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