Amylopectin from Glutinous Rice as a Sustainable Binder for High‐Performance Silicon Anodes

Han, Li; Wang, Chengrui; Su, Zhong; Chen, Su; Chen, Hao; Qian, Shangshu; Li, Dongsheng; Chen, Yan; Kiefel, Milton J.; Lai, Chao; Zhang, Shanqing

doi:10.1002/eem2.12143

Cited by 27 publications

(18 citation statements)

References 38 publications

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“…A primary issue is its poor binding affinity to the electrode components. This is because its primary binding mechanisms are mechanical interlocking and van der Waals forces, which are weak and general interactions [ 1 , 9 , 59 ]. While this has a negative effect on standard Li-ion batteries (with higher affinities from other binders leading to improved performance [ 60 , 61 ]), it is a much larger problem for more recent developments in high-capacity energy storage, such as Si-based anodes.…”

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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“…Glutinous rice is a key raw material for many sticky foods and cultivated annually worldwide with a large amount of ≈24.5 million tons. [12] The stickiness of glutinous rice is mainly derived from the high-content amylopectin (AP). From a perspective of molecular structure, AP is a branched polysaccharide composed of thousands of glucose residues connected by α-1, 4-glucosidic bonds and α-1, 6-glucosidic bonds.…”

Section: Introductionmentioning

confidence: 99%

From Glutinous‐Rice‐Inspired Adhesive Organohydrogels to Flexible Electronic Devices Toward Wearable Sensing, Power Supply, and Energy Storage

Zhou

Lai

Zheng

et al. 2021

Adv Funct Materials

128

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Flexible electronic devices (FEDs) based on hydrogels are attracting increasing interest, but the fabrication of hydrogels for FEDs with adhesiveness and high robustness in harsh-temperature conditions and long-term use remains a challenge. Herein, glutinous-rice-inspired adhesive organohydrogels are developed by introducing amylopectin into a copolymer network through a "one-pot" crosslinking procedure in a glycerol-water mixed solvent containing potassium chloride as the conductive ingredient. The organohydrogels exhibit excellent transparency (>90%), conductivity, stretchability, tensile strength, adhesiveness, anti-freezing property, and moisture retention ability. The wearable strain sensor assembled from the organohydrogels achieves a wide working range, high sensitivity (gauge factor: 8.82), low response time, and excellent reversibility, and properly responds in harshtemperature conditions and long-time storage (90 days). The strain sensor is further integrated with a Bluetooth transmitter and receiver for fabricating wireless wearable sensors. Notably, a sandwich-structured capacitive pressure sensor with organohydrogels containing reliefs as electrodes records a new gauge factor of 9.43 kPa −1 and achieves a wide response range, low detection limit, and outstanding reversibility. Furthermore, detachable and durable batteries and all-in-one supercapacitors are also fabricated utilizing the organohydrogels as electrolytes. Overall, this work offers a strategy to fabricate adhesive organohydrogels for robust FEDs toward wearable sensing, power supply, and energy storage.

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“…In order to address the problem confronting Si anodes, existing approaches include structural modifications of Si materials (e.g., nanowires, nanosheets and hierarchical constructions), introduction of additives and the development of novel binders [ 3 – 8 ]. Among these strategies, the employment of advanced binders has been demonstrated to be a facile yet effective way without compromise in battery energy density [ 9 , 10 ]. Ideal binders should tolerate the volume expansion of Si particles upon cycling by relying on the reversibility of their bonding structure, thereby maintaining structural integrity of Si electrodes [ 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

An Endotenon Sheath-Inspired Double-Network Binder Enables Superior Cycling Performance of Silicon Electrodes

Jiang

Zhang

et al. 2022

Nano-Micro Lett.

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Silicon (Si) has been regarded as an alternative anode material to traditional graphite owing to its higher theoretical capacity (4200 vs. 372 mAh g−1). However, Si anodes suffer from the inherent volume expansion and unstable solid electrolyte interphase, thus experiencing fast capacity decay, which hinders their commercial application. To address this, herein, an endotenon sheath-inspired water-soluble double-network binder (DNB) is presented for resolving the bottleneck of Si anodes. The as-developed binder shows excellent adhesion, high mechanical properties, and a considerable self-healing capability mainly benefited by its supramolecular hybrid network. Apart from these advantages, this binder also induces a Li3N/LiF-rich solid electrolyte interface layer, contributing to a superior cycle stability of Si electrodes. As expected, the DNB can achieve mechanically more stable Si electrodes than traditional polyacrylic acid and pectin binders. As a result, DNB delivers superior electrochemical performance of Si/Li half cells and LiNi0.8Co0.1Mn0.1O2/Si full cells, even with a high loading of Si electrode, to traditional polyacrylic acid and pectin binders. The bioinspired binder design provides a promising route to achieve long-life Si anode-assembled lithium batteries. "Image missing"

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Amylopectin from Glutinous Rice as a Sustainable Binder for High‐Performance Silicon Anodes

Abstract: Inspired by a success of glutinous rice mortar in the Great Wall, amylopectin which could provide strong bonding force was utilized as a flexible, aqueous, and resilient binder to construct highly stable silicon anode for high‐performance lithium‐ion batteries.

Cited by 27 publications

References 38 publications

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

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

From Glutinous‐Rice‐Inspired Adhesive Organohydrogels to Flexible Electronic Devices Toward Wearable Sensing, Power Supply, and Energy Storage

An Endotenon Sheath-Inspired Double-Network Binder Enables Superior Cycling Performance of Silicon Electrodes

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