What Is the Real Origin of Single-Walled Carbon Nanotubes for the Performance Enhancement of Si-Based Anodes?

Wang, Haolin; Chao, Yunfeng; Li, Jinzhao; Qi, Qi; Lu, Junfeng; Yan, Pengfei; Nie, Yanyan; Wang, Liu; Chen, Jiafu; Cui, Xinwei

doi:10.1021/jacs.4c01677

J. Am. Chem. Soc.

2024

DOI: 10.1021/jacs.4c01677

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What Is the Real Origin of Single-Walled Carbon Nanotubes for the Performance Enhancement of Si-Based Anodes?

Haolin Wang,

Yunfeng Chao,

Jinzhao Li

et al.

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Cited by 4 publications

References 64 publications

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Element Screening Engineering for High‐Entropy Alloy Anodes: Achieving Fast and Robust Li‐Storage With Optimal Working Potential

Li,

Wang,

Yang

et al. 2024

Advanced Materials

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While the high‐entropy strategy is highly effective in enhancing the performance of materials across various fields, an optimal methodology for selecting component elements for performance optimization is still lacking. Here the findings on uncovering the element selection rules for rational design of high‐entropy alloy anodes with exceptional lithium storage performance are reported. It is investigated high‐entropy element screening rules by modifying stable diamond‐structured Ge with P to induce a tetrahedrally coordinated sphalerite structure for enhanced metallic conductivity, further stabilized by incorporating Zn and other elements. Moreover, both theoretical and experimental results confirm that Li‐storage performance improves with increasing atomic number: BZnGeP3 < AlZnGeP3 < GaZnGeP3 < InZnGeP3. InZnGeP3‐based electrodes demonstrate the highest Li‐ion affinity, fastest electronic and Li‐ion transport, largest Li‐storage capacity and reversibility, and best mechanical integrity. Further element screening based on the above criteria leads to high entropy alloy anodes with metallic conductivity like GaCuSnInZnGeP6, GaCu(or Sn)InZnGeP5, CuSnInZnGeP5, InZnGePSeS(or Te), InZnGeP2S(or Se) which show superior Li‐storage performances. The excellent phase stability is attributed to their high configurational entropy. This study offers profound insights into element screening for high‐entropy alloy‐based anodes in Li‐ion batteries, providing guidance and reference for the element combination and screening of other high‐entropy functional materials.

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Element Screening Engineering for High‐Entropy Alloy Anodes: Achieving Fast and Robust Li‐Storage With Optimal Working Potential

Li,

Wang,

Yang

et al. 2024

Advanced Materials

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Quantitative synergistic adsorption affinity of Ca(II) and sodium oleate to predict the surface reactivity of hematite and quartz

Fu,

Niu,

Peng

et al. 2025

Separation and Purification Technology

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Phenolic Resin-Based Silicon/Carbon Composites Modified with Ultralow-Content Single-Walled Carbon Nanotubes via Liquid-Phase Mixing Method for Lithium-Ion Batteries

Wu,

Yang,

Wang

et al. 2024

ACS Appl. Energy Mater.

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Commercialization of silicon (Si) as an anode material in lithium-ion batteries (LIBs) is hindered by its low electrical conductivity and substantial volume change during lithiation-delithiation. A promising solution to address these issues lies in developing silicon/carbon (Si/C) composites. Herein, a liquid-phase mixing strategy is employed to combine nano-Si, phenolic resin (PF), and single-walled carbon nanotubes (SWCNTs, 0.05 wt %) with an optimal stirring speed of 3000 rpm, which ensures uniform dispersion of SWCNTs without inducing oxidation of the nano-Si. After a high-temperature carbonization, the 3000-Si/SWCNTs/carbon-5 composite (3000-SSC-5) is produced, features a unique structural configuration. In this composite, the PF-based hard carbon effectively encapsulates nano-Si, suppressing its volume expansion, while the SWCNTs form a conductive network that significantly enhances electrical conductivity. When tested as an anode of LIBs, the 3000-SSC-5 electrode exhibits excellent rate performance (1114 mAh g −1 at 4 A g −1 ), and outstanding cycling performance (884 mAh g −1 after 250 cycles at 0.5 A g −1 ). Furthermore, the full cell of 3000-SSC-5 // NCM811 achieves a capacity retention rate of 82.3% after 1000 cycles, highlighting its superior long-term stability. This paper demonstrates that the electrochemical properties of PF-based Si/C composites can be significantly enhanced through liquid-phase mixing with an ultralow content of SWCNTs. The unique composite configuration and excellent electrochemical performance underscore the promising potential of 3000-SSC-5 for commercial LIBs.

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What Is the Real Origin of Single-Walled Carbon Nanotubes for the Performance Enhancement of Si-Based Anodes?

Cited by 4 publications

References 64 publications

Element Screening Engineering for High‐Entropy Alloy Anodes: Achieving Fast and Robust Li‐Storage With Optimal Working Potential

Element Screening Engineering for High‐Entropy Alloy Anodes: Achieving Fast and Robust Li‐Storage With Optimal Working Potential

Quantitative synergistic adsorption affinity of Ca(II) and sodium oleate to predict the surface reactivity of hematite and quartz

Phenolic Resin-Based Silicon/Carbon Composites Modified with Ultralow-Content Single-Walled Carbon Nanotubes via Liquid-Phase Mixing Method for Lithium-Ion Batteries

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