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Gallium doping induces enhanced cyclic stability and rate capacity of lithium-ion battery silicon anode.

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Title: Gallium doping induces enhanced cyclic stability and rate capacity of lithium-ion battery silicon anode.
Authors: Wang, Zihao1 (AUTHOR), Wu, Fan1,2 (AUTHOR), Shu, Jinhao1 (AUTHOR), Shi, Hongcao1 (AUTHOR), Hu, Guijia2 (AUTHOR), Yan, Xiangshun2 (AUTHOR), Wang, Yongshu2 (AUTHOR), Chen, Yuan1 (AUTHOR) chenyuan@sdust.edu.cn
Source: Journal of Materials Science. Jun2026, Vol. 61 Issue 23, p16598-16611. 14p.
Subjects: Doping agents (Chemistry), Negative electrode, Electrochemical analysis, Lithium-ion batteries, Nanoparticles, Electric conductivity
Abstract: Improving the long-term cyclic stability and rate capacity is key to the commercial application of the lithium-ion battery Si anodes. However, the severe volume expansion and low conductivity limit the electrochemical performance. This work reports a gallium (Ga) doping strategy to improve the long-term cyclic stability and rate capacity. Highly crystalline and uniform grain-sized Ga-doped Si nanoparticles are obtained through the molten salt process. It not only shows significantly increased conductivity (resistance reduced by 5.4-fold), but also presents a faster diffusion coefficient. Furthermore, the optimized electrode delivers a high initial discharge capacity of 2715 mAh g−1 with an initial Coulombic efficiency of 89.12%. Additionally, the anode exhibits excellent rate capability; the high-rate capabilities of 2826 mAh g−1, 2169 mAh g−1, 1606 mAh g−1, 1016 mAh g−1, and 404 mAh g−1 are obtained at the current density of 0.1 A g−1, 0.5 A g−1, 1 A g−1, 2 A g−1, and 5 A g−1, respectively. Moreover, as the current density is restored to 0.1 A g−1, the capacity recovered to 2035 mAh g−1, which represents 72% of the initial reversible capacity. This work not only demonstrates that Ga can serve as a promising dopant for enhancing the long-cycle and rate performance of silicon-based anodes, but also underscores the significance of lattice dynamics and electronic structure tuning in the design of high-performance silicon anodes. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 193564456
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  Label: Title
  Group: Ti
  Data: Gallium doping induces enhanced cyclic stability and rate capacity of lithium-ion battery silicon anode.
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  Data: <searchLink fieldCode="AR" term="%22Wang%2C+Zihao%22">Wang, Zihao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Fan%22">Wu, Fan</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shu%2C+Jinhao%22">Shu, Jinhao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Shi%2C+Hongcao%22">Shi, Hongcao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Hu%2C+Guijia%22">Hu, Guijia</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yan%2C+Xiangshun%22">Yan, Xiangshun</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Yongshu%22">Wang, Yongshu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Yuan%22">Chen, Yuan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> chenyuan@sdust.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%22">Journal of Materials Science</searchLink>. Jun2026, Vol. 61 Issue 23, p16598-16611. 14p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Doping+agents+%28Chemistry%29%22">Doping agents (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Negative+electrode%22">Negative electrode</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemical+analysis%22">Electrochemical analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Lithium-ion+batteries%22">Lithium-ion batteries</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+conductivity%22">Electric conductivity</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Improving the long-term cyclic stability and rate capacity is key to the commercial application of the lithium-ion battery Si anodes. However, the severe volume expansion and low conductivity limit the electrochemical performance. This work reports a gallium (Ga) doping strategy to improve the long-term cyclic stability and rate capacity. Highly crystalline and uniform grain-sized Ga-doped Si nanoparticles are obtained through the molten salt process. It not only shows significantly increased conductivity (resistance reduced by 5.4-fold), but also presents a faster diffusion coefficient. Furthermore, the optimized electrode delivers a high initial discharge capacity of 2715 mAh g−1 with an initial Coulombic efficiency of 89.12%. Additionally, the anode exhibits excellent rate capability; the high-rate capabilities of 2826 mAh g−1, 2169 mAh g−1, 1606 mAh g−1, 1016 mAh g−1, and 404 mAh g−1 are obtained at the current density of 0.1 A g−1, 0.5 A g−1, 1 A g−1, 2 A g−1, and 5 A g−1, respectively. Moreover, as the current density is restored to 0.1 A g−1, the capacity recovered to 2035 mAh g−1, which represents 72% of the initial reversible capacity. This work not only demonstrates that Ga can serve as a promising dopant for enhancing the long-cycle and rate performance of silicon-based anodes, but also underscores the significance of lattice dynamics and electronic structure tuning in the design of high-performance silicon anodes. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Science is the property of Springer Nature and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1007/s10853-026-12839-0
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      – Code: eng
        Text: English
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        PageCount: 14
        StartPage: 16598
    Subjects:
      – SubjectFull: Doping agents (Chemistry)
        Type: general
      – SubjectFull: Negative electrode
        Type: general
      – SubjectFull: Electrochemical analysis
        Type: general
      – SubjectFull: Lithium-ion batteries
        Type: general
      – SubjectFull: Nanoparticles
        Type: general
      – SubjectFull: Electric conductivity
        Type: general
    Titles:
      – TitleFull: Gallium doping induces enhanced cyclic stability and rate capacity of lithium-ion battery silicon anode.
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            NameFull: Wang, Zihao
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            NameFull: Wu, Fan
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            NameFull: Shu, Jinhao
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            NameFull: Shi, Hongcao
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            – D: 15
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
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