Conghui Zhang , Fangkun Li , Tengteng Gu , Xin Song , Jujun Yuan , Liuzhang Ouyang , Min Zhu , Jun Liu
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引用次数: 0
摘要
金属锂具有较高的理论容量(3860 mAh g-1)和较低的电化学电位(-3.04 V),被认为是实现高能量密度锂金属电池(lmb)极具前景的负极材料,但锂枝晶的不可控和固体电解质界面相(SEI)的易碎性限制了lmb的实际应用。共价有机框架(COFs)为解决lmb固有问题提供了一个理想的平台,因为它们具有有序的Li+运输通道和丰富的亲锂基团,可以促进Li+均匀沉积,抑制Li枝晶,消除副反应。本文对COF在lmb中的应用进行了全面的总结和讨论。阐述了碳纳米管的设计原理和锂枝晶的形成机理。同时,综述了COF作为分离剂、人工SEIs和固态电解质优化lmb性能的最新进展。最后,对COFs面临的挑战和未来的研究前景进行了讨论。我们期望这篇综述能够为多功能COF的设计提供理论指导,并激励研究人员进一步研究COF在储能系统中的潜力。
Covalent organic frameworks for high-performance rechargeable lithium metal batteries: Strategy, mechanism, and application
Lithium metal is recognized as promising anode materials for achieving high energy density lithium metal batteries (LMBs) due to it has high theoretical capacity (3860 mAh g-1) and low electrochemical potential (-3.04 V). However, the practical application of LMBs is restricted by uncontrollable Li dendrites and fragile solid electrolyte interphase (SEI). Covalent organic frameworks (COFs) provide an ideal platform for addressing the inherent problems of LMBs owing to their ordered Li+ transport channels and plentiful lithiophilic groups to promote uniform Li+ deposition, restrain Li dendrites, and eliminate side reactions. This paper comprehensively summarizes and discusses the application COF in LMBs. The design principle of COF and Li dendrites formation mechanisms are elucidated. Meanwhile, the latest developments in COF as separators, artificial SEIs and solid-state electrolytes to optimize LMBs performance are reviewed. Finally, COFs facing challenges and their future investigation prospects are discussed. We expect the review to provide theoretical guidance for the design of multifunctional COF and motivate researchers to further investigate the potential of COF in energy storage systems.
期刊介绍:
Progress in Materials Science is a journal that publishes authoritative and critical reviews of recent advances in the science of materials. The focus of the journal is on the fundamental aspects of materials science, particularly those concerning microstructure and nanostructure and their relationship to properties. Emphasis is also placed on the thermodynamics, kinetics, mechanisms, and modeling of processes within materials, as well as the understanding of material properties in engineering and other applications.
The journal welcomes reviews from authors who are active leaders in the field of materials science and have a strong scientific track record. Materials of interest include metallic, ceramic, polymeric, biological, medical, and composite materials in all forms.
Manuscripts submitted to Progress in Materials Science are generally longer than those found in other research journals. While the focus is on invited reviews, interested authors may submit a proposal for consideration. Non-invited manuscripts are required to be preceded by the submission of a proposal. Authors publishing in Progress in Materials Science have the option to publish their research via subscription or open access. Open access publication requires the author or research funder to meet a publication fee (APC).
Abstracting and indexing services for Progress in Materials Science include Current Contents, Science Citation Index Expanded, Materials Science Citation Index, Chemical Abstracts, Engineering Index, INSPEC, and Scopus.