DataVXACS Applied Materials & InterfacesPaper
journal article·2024-04-26

Reinforced Interfacial Interaction between Si and Graphite To Improve the Cyclic Stability of Lithium-Ion Batteries

Yuanjiang Dong, Chang Liu, Fei Li, Huacheng Jin, Baoqiang Li, Fei Ding, Yijun Yang, Minh Ngoc Ha, Dai Lam Tran, Fangli Yuan

ACS Applied Materials & Interfaces
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Source abstract

Abstract

Preparing Si/C composite material with uniformly dispersed Si particles and stable electrode structure remains a huge challenge. In this study, a Si/C composite material with reinforced interfacial interaction (Si&AG) was successfully synthesized. Utilizing the HF-plasma technique, the metallurgical Si with large particle size was evaporated and nucleated, resulting in nanocrystallization and uniform dispersion onto the graphite surface. More importantly, a robust but thin SiC layer formed at the contact region ensures a steadfast adhesion of Si onto graphite. As anode for lithium-ion batteries, Si&AG exhibits a remarkable ICE of 87.9% and an impressive capacity retention of 78.1% after 500 cycles at 0.1 A g –1 . Even under high current densities, it consistently demonstrates a remarkable electrochemical performance (149.6 mAh g –1 at 3 A g –1 ). These exceptional properties can be attributed to the reinforced interfacial interaction facilitated by a robust but thin SiC layer, which endows the electrode with a stable structure and consequently performs excellent electrochemical performances.
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Research context

Energy storageMetals & alloysNanomaterialsComposites

OpenAlex topics: Advancements in Battery Materials · Advanced Battery Technologies Research · Advanced Battery Materials and Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

State Key Laboratory of Mesoscience and Engineering, Institute of Process Engineering, Chinese Academy of Sciences (CAS), Beijing 100190, P. R. China

University of Chinese Academy of Sciences (UCAS), Beijing 100049, P. R. China

Department of Materials Science and Engineering, School of Science, Beijing Jiaotong University, Beijing 100044, P. R. China

Key Laboratory of Advanced Materials for Green Growth, Faculty of Chemistry, University of Science, Vietnam National University (VNU), Hanoi 100000, Vietnam

Institute for Tropical Technology (ITT), Vietnam Academy of Science and Technology (VAST), 18 Hoang Quoc Viet, Cau Giay, Hanoi 100000, Vietnam

College of Materials Science and Opto-Electronics Technology, University of Chinese Academy of Sciences (UCAS), Beijing 100049, P. R. China

Innovation Academy for Green Manufacture, Beijing 100190, P. R. China

Funding

International Science and Technology Cooperation Programme

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