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IF 5.5 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Carbon Letters Pub Date : 2025-03-18 DOI:10.1007/s42823-025-00888-5

Fereshteh Abbasi, Farshad Boorboor Ajdari, Mohammadreza Mansournia, Parnaz Asghari, Ali Molaei Aghdam

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引用次数: 0

摘要

LTO 是一种商用负极材料，有助于提高能量输出和循环稳定性。石墨具有经济实惠和高能量密度的特点，但却面临着有限的循环时间和较差的稳定性。在此，我们讨论了 LTO 所面临的挑战，并将原始结构中的钛基负极与 LTO-MXene 复合材料进行了比较，后者是很有前途的替代负极。尖晶钛酸锂（LTO）具有工作电压高、稳定、安全、体积变化可忽略不计等特点，但其电子导电性较低，限制了其在大电流密度下的速率性能。二维二甲苯具有高导电性、大表面积、灵活性和极性表面等优点，因此最近在各种应用中备受关注。我们对 LTO-MXene 作为锂离子电池 (LIB) 新型负极材料的合成方法、形态学观点和电化学行为进行了严格的审查。有关 LTO-MXene 阳极材料在锂离子电池中应用的报道很少。它们提供了 LTO 和 MXene 的协同作用，提高了电解质的可及性并缩短了距离，有利于快速扩散。这篇综述论文揭示了合成方法如何直接影响 LIB 配置的耐久性和能量密度，并引导研究人员开发具有良好参与性的 LTO 阳极特性。

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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Toward high energy and durable anodes: critical review on Li4Ti5O12–MXene composites

LTO is a commercial anode material that contributes to delivered energy and cycle stability. With affordability and high energy density, graphite faces limited cycle time and inferior stability. Here, we discussed the LTO challenges and compared the Ti-based anode from the original structure to the LTO-MXene composites, which are promising alternative anodes. Spinel lithium titanate (LTO) possesses high working voltage, stability, safety, and negligible volume change, while it suffers from low electronic conductivity that limits rate performance at large current densities. 2D Mxenes have recently drawn attention to various applications due to high conductivity, large surface area, flexibility, and polar surface benefits. We critically reviewed the synthesis approaches, morphology views, and electrochemical behavior of LTO-MXene as new anode materials in lithium-ion batteries (LIBs). There are few reports on LTO-MXene anodes in LIBs. They provide a synergistic action of LTO and MXene, enhancing the accessibility of electrolytes and reducing the distance, benefiting fast diffusion. This review paper sheds light on how the synthesis approaches can directly affect LIB configurations' durability and energy density and lead researchers to develop features of LTO anodes with promising engagement.

Graphical abstract

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来源期刊

Carbon Letters CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

7.30

自引率

20.00%

发文量

118

期刊介绍： Carbon Letters aims to be a comprehensive journal with complete coverage of carbon materials and carbon-rich molecules. These materials range from, but are not limited to, diamond and graphite through chars, semicokes, mesophase substances, carbon fibers, carbon nanotubes, graphenes, carbon blacks, activated carbons, pyrolytic carbons, glass-like carbons, etc. Papers on the secondary production of new carbon and composite materials from the above mentioned various carbons are within the scope of the journal. Papers on organic substances, including coals, will be considered only if the research has close relation to the resulting carbon materials. Carbon Letters also seeks to keep abreast of new developments in their specialist fields and to unite in finding alternative energy solutions to current issues such as the greenhouse effect and the depletion of the ozone layer. The renewable energy basics, energy storage and conversion, solar energy, wind energy, water energy, nuclear energy, biomass energy, hydrogen production technology, and other clean energy technologies are also within the scope of the journal. Carbon Letters invites original reports of fundamental research in all branches of the theory and practice of carbon science and technology.