Phosphorus-doped silicon copper alloy composites as high-performance anode materials for lithium-ion batteries

Li, Qi; Yu, Mo; Huang, Yating; Cai, Zhengyu; Wang, Shuai; Ma, Yangzhou; Song, Guangsheng; Yu, Zebin; Yang, Weidong; Wen, Cuié

doi:10.1016/j.jelechem.2023.117684

Cited by 3 publications

(1 citation statement)

References 49 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…And it possesses the advantages associated with being cheap, non-toxic and environment-friendly, therefore, it is regarded as an exceedingly advanced anode material used at present [4]. However, silicon anode materials have disadvantages as an enormous volume expansion effect experienced occurring on charging/discharging, constant growth of solid electrolyte interfaces (SEI), and poor electronic conductivity [5,6]. During the alloying process of lithium ions and silicon, silicon volume is greatly expanded.…”

Section: Introductionmentioning

confidence: 99%

Novel binary regulated silicon-carbon materials as high-performance anodes for lithium-ion batteries

He,

Xiang,

Pan

et al. 2024

Nanotechnology

View full text Add to dashboard Cite

The massive volume dilation, unsteady solid electrolyte interphase, and weak conductivity about Si have failed to bring it to practical applications, although its potential capacity is up to 4200 mAh g-1. For solving these problems, novel binary regulated silicon-carbon materials (Si/BPC) were done by a sol-gel procedure combined with single carbonization. Analytical techniques were systematically utilized to examine the effects of element doping at several gradients on morphology, structure and electrochemical properties of composites, thus the optimal content was identified. Si/BPC preserves a discharge specific capacity of 1021.6 mAh g-1 with a coulomb efficiency of 99.27% after 180 cycles at 1000 mA g-1, within the upgrade than single-doped and undoped. In rate test, it has a specific capacity of 1003.2 mAh g-1 at a high current density of 5000 mA g-1, quickly back towards 2838.6 mAh g-1 at 200 mA g-1. The inclusion of B and P elements is linked to the electrochemical characteristics. In the co-doped carbon layers, the synergistic impact of doping B and P accelerates the diffusion kinetics of lithium ions, boosts diffusion rate of Li+, offers low electrochemical impedance (45.75 Ω). This brings more defects to provide transport carriers and induces a substantial amount of electrochemically active sites, which fosters the storage of Li+, thus making silicon material electrochemically more active and potential.

show abstract

Section: Introductionmentioning

confidence: 99%

Novel binary regulated silicon-carbon materials as high-performance anodes for lithium-ion batteries

He,

Xiang,

Pan

et al. 2024

Nanotechnology

View full text Add to dashboard Cite

show abstract

Innovative Solutions for High-Performance Silicon Anodes in Lithium-Ion Batteries: Overcoming Challenges and Real-World Applications

Khan,

Yan,

Ali

et al. 2024

Nano-Micro Lett.

View full text Add to dashboard Cite

Silicon (Si) has emerged as a potent anode material for lithium-ion batteries (LIBs), but faces challenges like low electrical conductivity and significant volume changes during lithiation/delithiation, leading to material pulverization and capacity degradation. Recent research on nanostructured Si aims to mitigate volume expansion and enhance electrochemical performance, yet still grapples with issues like pulverization, unstable solid electrolyte interface (SEI) growth, and interparticle resistance. This review delves into innovative strategies for optimizing Si anodes’ electrochemical performance via structural engineering, focusing on the synthesis of Si/C composites, engineering multidimensional nanostructures, and applying non-carbonaceous coatings. Forming a stable SEI is vital to prevent electrolyte decomposition and enhance Li+ transport, thereby stabilizing the Si anode interface and boosting cycling Coulombic efficiency. We also examine groundbreaking advancements such as self-healing polymers and advanced prelithiation methods to improve initial Coulombic efficiency and combat capacity loss. Our review uniquely provides a detailed examination of these strategies in real-world applications, moving beyond theoretical discussions. It offers a critical analysis of these approaches in terms of performance enhancement, scalability, and commercial feasibility. In conclusion, this review presents a comprehensive view and a forward-looking perspective on designing robust, high-performance Si-based anodes the next generation of LIBs.

show abstract

Synthesis and electrochemical properties of nano-Si/C composite anodes for lithium-ion batteries

Yuan,

Lu,

et al. 2023

New Carbon Materials

View full text Add to dashboard Cite

Phosphorus-doped silicon copper alloy composites as high-performance anode materials for lithium-ion batteries

Cited by 3 publications

References 49 publications

Novel binary regulated silicon-carbon materials as high-performance anodes for lithium-ion batteries

Novel binary regulated silicon-carbon materials as high-performance anodes for lithium-ion batteries

Innovative Solutions for High-Performance Silicon Anodes in Lithium-Ion Batteries: Overcoming Challenges and Real-World Applications

Synthesis and electrochemical properties of nano-Si/C composite anodes for lithium-ion batteries

Contact Info

Product

Resources

About