Controlling of the ratio of submicron particles and size effects in SiO anode for Li-ion batteries

IF 8.6 2区工程技术 Q1 ENERGY & FUELS

Sustainable Materials and Technologies Pub Date : 2024-09-01 DOI:10.1016/j.susmat.2024.e01109

Jialin Ye , Zhengwei Wan , Zhuoying Wu , Kun Wang , Zhanhong Ji , Yan Lu , Xue Wang , Xiaole Tao , Hao Xing , Meiqiang Fan , Huixin Ren , Lijing Yan , Xuehui Gao , Wenjun Yan , Fan Yang , Min Ling , Fei Hao , Chengdu Liang

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Abstract

SiO, with a high theoretical specific capacity and acceptable volume variation, is considered one of the most promising next-generation anode materials. However, there is limited research on the effect of SiO particle size distribution on the electrochemical performance of LIBs. In this study, we investigated the impact of the ratio of submicron particles (0.1 μm to 1 μm) on the electrochemical performance. It found that a combination of micron and submicron particles with the ratio of submicron particles (RoS) in processed SiO at around 90 % resulted in optimal enhanced capacity and cycling stability, while the remaining 10 % of micron particles mitigate the side reactions caused by excessive surface area. This work is believed to provide a new perspective for inspiring long-span life SiO-based LIBs.

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控制锂离子电池二氧化硅负极中亚微米颗粒的比例和尺寸效应

氧化硅具有较高的理论比容量和可接受的体积变化，被认为是最有前途的下一代负极材料之一。然而，有关氧化硅粒度分布对 LIB 电化学性能影响的研究还很有限。在本研究中，我们研究了亚微米颗粒（0.1 微米到 1 微米）的比例对电化学性能的影响。研究发现，将微米和亚微米颗粒结合使用，亚微米颗粒在加工过的氧化硅中的比例（RoS）约为 90%，可最佳地增强容量和循环稳定性，而剩余的 10% 微米颗粒则可减轻因表面积过大而引起的副反应。相信这项工作将为激发基于氧化硅的长寿命 LIB 提供一个新的视角。

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来源期刊

Sustainable Materials and Technologies Energy-Renewable Energy, Sustainability and the Environment

CiteScore

13.40

自引率

4.20%

发文量

158

审稿时长

45 days

期刊介绍： Sustainable Materials and Technologies (SM&T), an international, cross-disciplinary, fully open access journal published by Elsevier, focuses on original full-length research articles and reviews. It covers applied or fundamental science of nano-, micro-, meso-, and macro-scale aspects of materials and technologies for sustainable development. SM&T gives special attention to contributions that bridge the knowledge gap between materials and system designs.