Rational carbon design and confinement of leaf-like Tin trisulfide@Carbon/MXene Ti3C2Tx for enhanced conductivity and lithium storage kinetics

IF 23.2 2区 材料科学 Q1 MATERIALS SCIENCE, COMPOSITES Advanced Composites and Hybrid Materials Pub Date : 2024-06-28 DOI:10.1007/s42114-024-00927-1
Huibin Guan, Dong Feng, Xuezhi Xu, Qiduo Chen, Yi Mei, Tianbiao Zeng, Delong Xie
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Abstract

Due to the abundant terrestrial storage of raw materials, tin sulfide stands out as one of the most promising candidates for anodes in lithium-ion batteries (LiBs). Among its various forms, Tin trisulfide (Sn2S3) is a n-type semiconductor with notable anisotropic electrical conductivity. However, research on Sn2S3 crystal materials and their utilization as anode materials in LiBs remains limited. To expand the scope of application research involving Sn2S3 anode materials and to address the efficiency shortcomings associated with tin sulfide, a novel stacked leaf-like Sn2S3@C/Ti3C2Tx anode material has been meticulously designed and synthesized. Employing mechanical ball milling, the negatively charged surface of the Ti3C2Tx material is strategically leveraged to create defect spaces. These spaces facilitate a more stable anchoring of Sn2S3@C onto the sheet-like surface, mitigating internal stresses that may arise during charge–discharge cycles due to material aggregation. When deployed as the anode in LiBs, the Sn2S3@C/Ti3C2Tx composite exhibits exceptional cycling stability and conductivity. Notably, it demonstrates high reversible specific capacities across various current densities, i.e., 1162, 996.8, 925.4, 866.4, 810.1, 721.4, 624.5, and 552.8 mAh g−1 at 0.1, 0.2, 0.5, 1, 2, 4, 8, and 10 A g−1, respectively, surpassing those reported for SnSx-based anodes for LiBs. Additionally, dynamic tests such as galvanostatic intermittent titration technique (GITT) reveal that Sn2S3@C/Ti3C2Tx possesses superior surface diffusion capability and rapid electrical conduction rates. These findings underscore the significant potential for the practical application of Sn2S3@C/Ti3C2Tx nanocomposites in high-performance LiBs, offering a promising avenue for advancing battery technology towards enhanced efficiency and reliability.

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合理的碳设计和叶状三硫化锡@碳/MXene Ti3C2Tx 的约束可增强导电性和锂存储动力学
硫化锡是锂离子电池(LiBs)阳极最有前途的候选材料之一,因为其原材料在陆地上储量丰富。在其各种形态中,三硫化锡(Sn2S3)是一种 n 型半导体,具有显著的各向异性导电性。然而,有关 Sn2S3 晶体材料及其在锂电池中用作负极材料的研究仍然有限。为了扩大 Sn2S3 阳极材料的应用研究范围,并解决硫化锡的效率缺陷,我们精心设计并合成了一种新型叠层叶状 Sn2S3@C/Ti3C2Tx 阳极材料。通过机械球磨,Ti3C2Tx 材料的带负电表面被战略性地利用来产生缺陷空间。这些空间有助于将 Sn2S3@C 更稳定地固定在片状表面上,从而减轻充放电循环过程中因材料聚集而可能产生的内应力。在用作锂电池阳极时,Sn2S3@C/Ti3C2Tx 复合材料表现出卓越的循环稳定性和导电性。值得注意的是,它在各种电流密度下都表现出了很高的可逆比容量,即在 0.1、0.2、0.5、1、2、4、8 和 10 A g-1 下分别为 1162、996.8、925.4、866.4、810.1、721.4、624.5 和 552.8 mAh g-1,超过了已报道的用于锂电池的 SnSx 基阳极的容量。此外,电静电间歇滴定技术(GITT)等动态测试表明,Sn2S3@C/Ti3C2Tx 具有卓越的表面扩散能力和快速电导率。这些发现强调了 Sn2S3@C/Ti3C2Tx 纳米复合材料在高性能锂电池中实际应用的巨大潜力,为推动电池技术提高效率和可靠性提供了一条大有可为的途径。
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来源期刊
CiteScore
26.00
自引率
21.40%
发文量
185
期刊介绍: Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.
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