Insights into the Structure–Property–Function Relationships of Silicon-Based Anode Binders for Lithium-Ion Batteries

IF 3.8 3区 工程技术 Q2 ENGINEERING, CHEMICAL
Hongyang Zhang, Yujing Su, Yingdong Chen, Fangrui Liu, Ruojia Zhu, Pengtao Zhao, Lianjin Wei, Wenqi Li, Tao Chen, Jiajun Fu
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引用次数: 0

Abstract

As a highly promising electrode material for future batteries, silicon (Si) is considered an alternative anode, which has garnered significant attention due to its exceptional theoretical gravimetric capacity, low working potential, and abundant natural resources. Nonetheless, the real-world usage of silicon anodes is hampered by huge challenges such as drastic volumetric expansion, poor structural interfacial stability, and unstable solid electrolyte interface. To tackle these challenges, significant endeavors have been increasingly channeled into the creation of novel binders. Adhesive, as an element of the silicon electrode, is crucial for preserving structural stability. Therefore, designing multifunctional binder stress dissipation networks is one of the important strategies to overcome the challenges of commercializing silicon anodes. This paper reviews recent advances in silicon anode binders and explores the structural-functional properties of these binders. Binders can be classified based on their structure into linear, branched, three-dimensional networks, and multiconjugated. The functional properties of different structural design strategies are discussed in depth, focusing on mechanical and electrical conductivity. Special attention is given to the design strategy of multifunctional stress-release binder networks. Finally, the article addresses the challenges and future directions of silicon anode binder research and offers suggestions for the continued advancement of high-performance silicon anode lithium-ion batteries.

Abstract Image

锂离子电池硅基负极粘合剂的结构-性能-功能关系透视
硅(Si)作为一种极有前途的未来电池电极材料,因其优异的理论重力容量、低工作电位和丰富的自然资源而备受关注。然而,硅阳极在实际应用中面临着巨大的挑战,如体积急剧膨胀、结构界面稳定性差、固体电解质界面不稳定等。为了应对这些挑战,人们越来越多地致力于开发新型粘合剂。粘合剂作为硅电极的一个元素,对保持结构稳定性至关重要。因此,设计多功能粘合剂应力消散网络是克服硅阳极商业化挑战的重要策略之一。本文回顾了硅阳极粘结剂的最新进展,并探讨了这些粘结剂的结构功能特性。粘结剂可根据其结构分为线型、支化型、三维网络型和多共轭型。深入讨论了不同结构设计策略的功能特性,重点是机械和导电性。文章还特别关注了多功能应力释放粘合剂网络的设计策略。最后,文章探讨了硅负极粘结剂研究面临的挑战和未来发展方向,并为继续推动高性能硅负极锂离子电池的发展提出了建议。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Industrial & Engineering Chemistry Research
Industrial & Engineering Chemistry Research 工程技术-工程:化工
CiteScore
7.40
自引率
7.10%
发文量
1467
审稿时长
2.8 months
期刊介绍: ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.
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