Rapid Joule heating-induced welding of silicon and graphene for enhanced lithium-ion battery anodes

Yang，Fan1; Deng，Pengcheng1; He，Hang1; Hong，Ruolan1; Xiang，Kun2; Cao，Yuan1; Yu，Beibei1; Xie，Zeman1; Lu，Jiming3; Liu，Zikang1; Khan，Danish1; Harbottle，David4; Xu，Zhenghe5; Liu，Qingxia1; Tang，Zeguo1

2024-08-15

10.1016/j.cej.2024.152828

Chemical Engineering Journal   影响因子和分区

1385-8947

In the pursuit of enhanced energy storage solutions, the application of silicon-based anode materials faces significant hurdles, primarily stemming from the rapid capacity degradation during battery cycles. This study introduces a novel and efficient method for fabricating Si/graphene composites (F-Si@rGO), enhancing the performance and longevity of silicon-based anodes. Utilizing ultra-high-speed thermal treatment, this technique controls the thermal interaction between carbon and silicon phases, leading to the formation of silicon carbide “riveting points” that firmly anchor silicon nanoparticles within the graphene matrix. This novel method effectively minimizes the problems of phase segregation, which are caused by varying degrees of wettability alteration in the two phases during conventional heat treatments, and guarantees a robust integration of graphene and silicon. This integration results in homogeneous charging and outstanding structural stability of the composites, over extended cycles of use. The resulting Si/graphene composites exhibit exceptional electrochemical performance, achieving a high initial capacity of 1141.3 mAh g at 1C and maintaining a capacity of 894.95 mAh g after 1000 cycles with minimal degradation (0.0216 % per cycle). This synthesis method, notable for its speed and scalability, offers a potential advancement in battery material technology, suggesting a path towards more resilient and efficient energy storage solutions.

Energy storage material Joule heating Lithium-ion batteries Silicon carbide Silicon-based anode Welding

SCI ; EI

英语

其他

20242416234212

Energy storage ; Graphene ; Heat treatment ; Joule heating ; Lithium-ion batteries ; Silicon carbide ; Stability ; Storage (materials) ; Welding

Energy Storage:525.7 ; Heat Treatment Processes:537.1 ; Welding:538.2 ; Thermodynamics:641.1 ; Storage:694.4 ; Electricity: Basic Concepts and Phenomena:701.1 ; Electron Tubes:714.1 ; Nanotechnology:761 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2

ENGINEERING

2-s2.0-85195388796

Scopus

1.College of New Materials and New Energies,Shenzhen Technology University,Shenzhen,518118,China
2.Hangzhou Hikvision Digital Technology Co. Ltd.,Hangzhou,310051,China
3.School of Resource & Environment,Hunan University of Technology and Business,Changsha,410205,China
4.School of Chemical and Process Engineering,University of Leeds,Leeds,LS2 9JT,United Kingdom
5.College of Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Yang，Fan,Deng，Pengcheng,He，Hang,et al. Rapid Joule heating-induced welding of silicon and graphene for enhanced lithium-ion battery anodes[J]. Chemical Engineering Journal,2024,494.

Yang，Fan.,Deng，Pengcheng.,He，Hang.,Hong，Ruolan.,Xiang，Kun.,...&Tang，Zeguo.(2024).Rapid Joule heating-induced welding of silicon and graphene for enhanced lithium-ion battery anodes.Chemical Engineering Journal,494.

Yang，Fan,et al."Rapid Joule heating-induced welding of silicon and graphene for enhanced lithium-ion battery anodes".Chemical Engineering Journal 494(2024).