Role of Polyacrylic Acid (PAA) Binder on the Solid Electrolyte Interphase in Silicon Anodes

Parikh, Pritesh; Sina, Mahsa; Banerjee, Abhik; Wang, Xuefeng; D’Souza, Macwin Savio; Doux, Jean-Marie; Wu, Erik A.; Trieu, Osman Y.; Gong, Yongbai; Zhou, Qian; Snyder, Kent; Meng, Ying Shirley

doi:10.1021/acs.chemmater.8b05020

Cited by 146 publications

(109 citation statements)

References 46 publications

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“…The cycling behavior of the electrodes unambiguously demonstrated the importance of the pH during processing of the anodes fabricated from microcrystalline Si and PAA. While the benefits of the low processing pH for some types of Si are well documented 27 , for the microcrystalline Si used in the present work the effect is dramatic. Specifically, slurry processing at neutral pH leads to largely non-functioning anode where complete capacity fading occurs after completion of formation cycles.…”

Section: Resultsmentioning

confidence: 71%

“…It has been shown that treatment of PAA with LiOH/NaOH (at pH around 8) allows to reduce irreversible capacity 26 . PAA has been found to have better capacity retention compared to CMC when LiFSI salt was used for electrolyte formulation 27 . The performance of binder system also strongly depends on the selection of the silicon material and selected electrolyte.…”

Section: Introductionmentioning

confidence: 99%

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Anodes for Li-ion batteries prepared from microcrystalline silicon and enabled by binder’s chemistry and pseudo-self-healing

Foss

Müssig

Svensson

et al. 2020

Sci Rep

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Silicon, while suffering from major degradation issues, has been recognized as a next promising material to replace currently used graphite in the anodes of Li-ion batteries. Several pathways to mitigate the capacity fading of silicon has been proposed, including optimization of the electrode composition. Within the present work we evaluated different binder formulations to improve the long-term performance of the Li-ion batteries’ anodes based on industrial grade silicon (Si) which is typically characterized by a particle sizes ranging from 100 nm to 5.5 microns. The decrease of pH in a binder formulation was found to detrimental for the cycling performance of Si due to enhanced formation of an ester-type bonding between the carboxylic group of the binder and hydroxyl group on the Si surface as well as cross-linking. Furthermore, the present work was focused on the use of the industrial grade Si with very high loading of Si material (up to 80% by weight) to better highlight the effects of the surface chemistry of Si and its influence on the performance of Si-based anodes in Li-ion batteries. The tested system allowed to establish a pseudo self-healing effect that manifests itself through the restoration of the anode capacity by approximately 25% and initiates after approximately 20 cycles. The stabilization of the capacity is attributed to self-limiting lithiation process. Such effect is closely related to SEI formation and transport properties of an electrode prepared from silicon of industrial grade.

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Section: Resultsmentioning

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Anodes for Li-ion batteries prepared from microcrystalline silicon and enabled by binder’s chemistry and pseudo-self-healing

Foss

Müssig

Svensson

et al. 2020

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Commercialization of silicon‐based lithium‐ion batteries requires favorable stability of the battery. However, the large volume expansion of the silicon electrode can cause the SEI layer to break and lose electrical contact with the current collector . Designing a stable electrode structure is an effective method to improve the large volume change of the Si anode during charging/discharging of LIBs .…”

Section: Selection Of Electrolyte For Silicon Anodementioning

confidence: 99%

“…However, they are incompatible with silicon electrodes and are unable to maintain the integrity of the silicon electrodes during cycling . As shown in Figure , Polyacrylic acid(PAA) binders showed greater capacity retention compared to CMC . The anode prepared by PAA as a binder for silicon nanoparticles showed a capacity loss of only 8% in 300 cycles .…”

Section: Selection Of Electrolyte For Silicon Anodementioning

confidence: 99%

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Silicon Anodes for High‐Performance Storage Devices: Structural Design, Material Compounding, Advances in Electrolytes and Binders

Hou

Yang

2020

ChemNanoMat

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Silicon has an extremely high theoretical capacity, a low voltage platform, and abundant natural reserves. It is considered to be one of the most promising anode materials for lithium-ion batteries. However, there are still many problems with silicon as an anode material for lithium-ion batteries. During the lithiation/delithiation of silicon, a huge volume expansion occurs, causing the silicon particles to pulverize and the capacity to drop sharply. Furthermore, the continuous increase in the silicon surface solid electrolyte interphase (SEI) films and the poor conductivity of silicon affect the specific capacity of the battery. Means to improve silicon-based anodes with regard to electrode cycling performance and electrode capacity include structural design, composite preparation, or improvements in electrolytes and binders (for example, designing silicon nanomaterials of different dimensions from 0D to 3D, including silicon nanoparticles, nanowires, nanorods, thin films, porous silicon, and core-shell structures). Silicon has been combined with different materials to buffer its own volume expansion, resulting in excellent performance. In addition, the design of a reasonable electrolyte solution, as well as the development of a selfhealing binder is one of the main methods to improve Sibased anodes. In recent years, sodium/potassium ion batteries have been increasingly studied, and silicon and sodium/potassium can be alloyed. The corresponding theoretical capacity can reach 954 mAh g À 1 and 955 mAh g À 1 , respectively. Advances in silicon-based anodes for sodium/ potassium ion storage are summarized herein.ductility. [25] It can increase the conductivity of silicon and adapt to the large volume expansion of silicon. In addition, some are compounded with silicon or metal or metal oxides. Such as copper, silver, tin oxide and titanium oxide. [39][40][41][42][43][44] In addition to changing the silicon's own morphological structure and preparing composite materials, the design and selection of electrolytes and binders is to improve the performance of silicon-based electrodes from the outside. By selecting the appropriate electrolytes, the electrode materials can be effectively reduced deterioration. At present, various additive-modified organic solvent electrolytes, ionic liquid electrolytes, and all-solid electrolytes are widely used in silicon-based anodes. [45][46][47][48] In addition, it is widely applicable to the binder polyvinylidene fluoride(PVDF) of lithium ion battery electrode materials, but

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Silicon‐Based Lithium Ion Battery Systems: State‐of‐the‐Art from Half and Full Cell Viewpoint

Guo

Dong

Wang

et al. 2021

Adv Funct Materials

106

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Lithium‐ion batteries (LIBs) have been occupying the dominant position in energy storage devices. Over the past 30 years, silicon (Si)‐based materials are the most promising alternatives for graphite as LIB anodes due to their high theoretical capacities and low operating voltages. Nevertheless, their extensive volume changes in battery operation causes the structural collapse of Si‐based electrodes, as well as severe side reactions. In this review, the preparation methods and structure optimizations of Si‐based materials are highlighted, as well as their applications in half and full cells. Meanwhile, the developments of promising electrolytes, binders and separators that match Si‐based electrodes in half and full cells have made great progress. Pre‐lithiation technology has been introduced to compensate for irreversible Li+ consumption during battery operation, thereby improving the energy densities and lifetime of Si‐based full cells. More importantly, almost all related mechanisms of Si‐based electrodes in half and full cells are summarized in detail. It is expected to provide a comprehensive insight on how to develop high‐performance Si‐based full cells. The work can help us understand what happens during the lithiation process, the primary causes of Si‐based half and full cells failure, and strategies to overcome these challenges.

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Role of Polyacrylic Acid (PAA) Binder on the Solid Electrolyte Interphase in Silicon Anodes

Cited by 146 publications

References 46 publications

Anodes for Li-ion batteries prepared from microcrystalline silicon and enabled by binder’s chemistry and pseudo-self-healing

Anodes for Li-ion batteries prepared from microcrystalline silicon and enabled by binder’s chemistry and pseudo-self-healing

Silicon Anodes for High‐Performance Storage Devices: Structural Design, Material Compounding, Advances in Electrolytes and Binders

Silicon‐Based Lithium Ion Battery Systems: State‐of‐the‐Art from Half and Full Cell Viewpoint

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