Dynamic Cross-Linking of Polymeric Binders Based on Host–Guest Interactions for Silicon Anodes in Lithium Ion Batteries

Kwon, Tai-Wan; Jeong, You Kyeong; Deniz, Erhan; AlQaradawi, Siham Y.; Choi, Jang Wook; Coskun, Ali

doi:10.1021/acsnano.5b05030

Cited by 195 publications

(176 citation statements)

References 39 publications

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“…Host-guest interactions. Kwon et al 78 introduced the concept of dynamic crosslinking based on the host-guest interactions to form an interconnected polymeric binder network (Fig. 11).…”

Section: Polymer Network Formed By Noncovalent/dynamic Crosslinkingmentioning

confidence: 99%

The emerging era of supramolecular polymeric binders in silicon anodes

2018

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Silicon (Si) anode is among the most promising candidates for the next-generation high-capacity electrodes in Li-ion batteries owing to its unparalleled theoretical capacity (4200 mA h g À1 for Li 4.4 Si) that is approximately 10 times higher than that of commercialized graphitic anodes (372 mA h g À1 for LiC 6 ).The battery community has witnessed substantial advances in research on new polymeric binders for silicon anodes mainly due to the shortcomings of conventional binders such as polyvinylidene difluoride (PVDF) to address problems caused by the massive volume change of Si (300%) upon (de)lithiation. Unlike conventional battery electrodes, polymeric binders have been shown to play an active role in silicon anodes to alleviate various capacity decay pathways. While the initial focus in binder research was primarily to maintain the electrode morphology, it has been recently shown that polymeric binders can in fact help to stabilize cracked Si microparticles along with the solid-electrolyte-interphase (SEI) layer, thus substantially improving the electrochemical performance. In this review article, we aim to provide an in-depth analysis and molecular-level design principles of polymeric binders for silicon anodes in terms of their chemical structure, superstructure, and supramolecular interactions to achieve good electrochemical performance. We further highlight that supramolecular chemistry offers practical tools to address challenging problems associated with emerging electrode materials in rechargeable batteries.

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“…Host-guest interactions. Kwon et al 78 introduced the concept of dynamic crosslinking based on the host-guest interactions to form an interconnected polymeric binder network (Fig. 11).…”

Section: Polymer Network Formed By Noncovalent/dynamic Crosslinkingmentioning

confidence: 99%

The emerging era of supramolecular polymeric binders in silicon anodes

2018

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“…Self-healing Li-ion batteries can spontaneously heal these mechanical fractures or even severe damage, leading to enhancement of cycling stability of the device. To date, much emphasis has been placed on fabricating self-healing electrodes by designing intrinsic self-healing active metallic alloys [133,134] or incorporating self-healing polymer [59,[135][136][137][138] into electrode configuration to achieve the self-healing property for selfhealing Li-ion batteries.…”

Section: Wwwadvancedsciencenewscommentioning

confidence: 99%

“…Reproduced with permission. [136] Copyright 2015, American Chemical Society. c) Schematic illustration of a stretching and releasing process for the stretchable graphitic carbon/Si/self-healing elastic polymer electrode by rational design of 3D foam structure.…”

Section: Self-healing Electrodes For Lithium Batteriesmentioning

confidence: 99%

Self‐Healing Materials for Next‐Generation Energy Harvesting and Storage Devices

Chen

Wang

Yang

et al. 2017

Advanced Energy Materials

228

174

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Because of the great breakthroughs of self‐healing materials in the past decade, endowing devices with self‐healing ability has emerged as a particularly promising route to effectively enhance the device durability and functionality. This article summarizes recent advances in self‐healing materials developed for energy harvesting and storage devices (e.g., nanogenerators, solar cells, supercapacitors, and lithium‐ion batteries) over the past decade. This review first introduces the main self‐healing mechanisms among different materials including insulators, electrical conductors, semiconductors, and ionic conductors. Then, the basic concepts, fabrication techniques, and healing performances of the newly developed self‐healing energy harvesting (nanogenerators and solar cells) and storage (supercapacitors and lithium‐ion batteries) devices are described in detail. Finally, the existing challenges and promising solutions of self‐healing materials and devices are discussed.

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“…[153] However, it has a significant influence on the electrochemical performance of the energystorage devices, especially for the alloy-type anode materials with high capacitance but large volume change during charge/discharge. [76,154,155] An ideal binder should usually meet the following prerequisites: (i) containing polar groups to provide strong adhesion and high tensile strength at the interfaces between the active materials, conducive additive and the current collector; (ii) acting as dispersant to uniformly distribute the active materials and conductive additive; (iii) don't deteriorate the electrons transfer and ions diffusion; (iv) physically and chemically stable in the electrolyte, as well as electrochemically stable under charge/discharge cycles; (v) low-cost, safe and environmental-friendly. [95,[156][157][158] Polyvinylidene fluoride (PVDF) is the most widely used commercial binder with superior electrochemical stability.…”

Section: Bindersmentioning

confidence: 99%

Nature‐Inspired Electrochemical Energy‐Storage Materials and Devices

Wang

Yang

Guo

2016

Advanced Energy Materials

155

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Nature-inspired strategies have been proposed recently as novel and effective routines to address these challenges.(1) Specifically, the limited availability of mineral resources could hardly satisfy the booming requirement and subsequent production quantity of energystorage devices for long time, and will necessarily lead to their increasing price. [15,16] Moreover, the non-biodegradability of current energy-storage devices after their service lifetime will bring about tremendous electronic garbage. Thus, renewable, cheap and environment-friendly energy-storage related materials are greatly desired to substitute current components. [12,[17][18][19][20][21][22][23][24][25][26] In nature, its energy conversion and storage systems have been evolved for billions of years, and spawned highly efficient and well suited cellular respiration machineries in living organisms for external energy assimilation, metabolism and distribution. [27] In recent years, inspirations have been taken from nature to fabricate biomolecule-based electrode materials from renewable biomass. [28][29][30][31][32] For example, inspired by the electron shuttles functioning in extracellular electron transfer via reversible redox-cycling, man-made electrode materials with similar active functional groups have been explored. [33,34] In our newly reported work, supercapacitor employing redoxactive biomolecule as the faradic-type active material could even obtain a higher energy density than those of previous transition-metal-based supercapacitors. [35] (2) Another issue encountered by current energy-storage system arises from the laborious preparation processes of their energy-storage materials which usually adopt extreme conditions. In biological systems, assembly of complicated micro-organelles are precisely controlled with the aid of biotemplates. By mimicking the bio-assembly processes or utilizing appropriate biotemplates, facile preparation of energy-storage materials in mild conditions has been achieved. [36][37][38][39][40][41][42][43][44] (3) In rechargeable batteries and supercapacitors, the architecture of active materials always determines their cycle life and rate performance. [45][46][47][48] While the abundant examples of natural structures with known stableness, geometry configuration, surface wettability and mechanical property provide clues for rational design of nanostructured active materials with desired performance. [49][50][51][52][53][54][55][56][57][58][59][60][61][62][63] (4) What's more, nature-inspired routines are also useful for rational design of ideal binders Currently, tremendous efforts are being devoted to develop high-performance electrochemical energy-storage materials and devices. Conventional electrochemical energy-storage systems are confronted with great challenges to achieve high energy density, long cycle-life, excellent biocompatibility and environmental friendliness. The biological energy metabolism and storage systems have appealing merits of high efficiency, sophisticated regulation, clean and renewabil...

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Dynamic Cross-Linking of Polymeric Binders Based on Host–Guest Interactions for Silicon Anodes in Lithium Ion Batteries

Cited by 195 publications

References 39 publications

The emerging era of supramolecular polymeric binders in silicon anodes

The emerging era of supramolecular polymeric binders in silicon anodes

Self‐Healing Materials for Next‐Generation Energy Harvesting and Storage Devices

Nature‐Inspired Electrochemical Energy‐Storage Materials and Devices

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