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Preparation and lithium storage performance of SiO2/Ag composite materials coated with polyphosphazene

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Titel: Preparation and lithium storage performance of SiO2/Ag composite materials coated with polyphosphazene
Autoren: Zhao, Zhengping, Xu, Zhao, Zheng, Zhong, Wang, Wei, Wang, Wenyu, Yang, Xingcheng, Zhu, Siqi, Chew, Jia Wei, 1981
Quelle: Express Polymer Letters. 18(10):976-990
Schlagwörter: anode material, polyphosphazenes, silica, PAN, lithium-ion battery
Beschreibung: Lithium-ion batteries (LIBs) are widely used as important energy storage and energy supply devices. The porous design and heteroatomization modification of carbon-based anode materials are crucial for achieving high-capacity and reversible energy storage in LIBs. Sol-gel method and pyrolysis treatment were used to obtain silica/silver composite particles used as templates. Polyphosphazene-coated silica/silver composite composite carbon materials (SiO2/Ag@PZS-C) were synthesized through in-situ self-assembly and carbonization of polyphosphazene. The electrochemical behavior and lithium storage mechanism of SiO2/Ag@PZS-C was also studied. The results reveal that the composite exhibited high specific capacity, stable cycling and superior rate performance. The double modification of silver nanoparticles and polyphosphazene carbon significantly improves the conductivity of silica and reduces the volume change. Moreover, the carbon shell of polyphosphazene facilitated the formation of a stable solid electrolyte interface film (SEI), preventing direct contact between the active material and the electrolyte, thereby substantially enhancing lithium storage performance.
Dateibeschreibung: electronic
Zugangs-URL: https://research.chalmers.se/publication/542483
https://research.chalmers.se/publication/542483/file/542483_Fulltext.pdf
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  Data: Preparation and lithium storage performance of SiO2/Ag composite materials coated with polyphosphazene
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Zhao%2C+Zhengping%22">Zhao, Zhengping</searchLink><br /><searchLink fieldCode="AR" term="%22Xu%2C+Zhao%22">Xu, Zhao</searchLink><br /><searchLink fieldCode="AR" term="%22Zheng%2C+Zhong%22">Zheng, Zhong</searchLink><br /><searchLink fieldCode="AR" term="%22Wang%2C+Wei%22">Wang, Wei</searchLink><br /><searchLink fieldCode="AR" term="%22Wang%2C+Wenyu%22">Wang, Wenyu</searchLink><br /><searchLink fieldCode="AR" term="%22Yang%2C+Xingcheng%22">Yang, Xingcheng</searchLink><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Siqi%22">Zhu, Siqi</searchLink><br /><searchLink fieldCode="AR" term="%22Chew%2C+Jia+Wei%22">Chew, Jia Wei</searchLink>, 1981
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <i>Express Polymer Letters</i>. 18(10):976-990
– Name: Subject
  Label: Subject Terms
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22anode+material%22">anode material</searchLink><br /><searchLink fieldCode="DE" term="%22polyphosphazenes%22">polyphosphazenes</searchLink><br /><searchLink fieldCode="DE" term="%22silica%22">silica</searchLink><br /><searchLink fieldCode="DE" term="%22PAN%22">PAN</searchLink><br /><searchLink fieldCode="DE" term="%22lithium-ion+battery%22">lithium-ion battery</searchLink>
– Name: Abstract
  Label: Description
  Group: Ab
  Data: Lithium-ion batteries (LIBs) are widely used as important energy storage and energy supply devices. The porous design and heteroatomization modification of carbon-based anode materials are crucial for achieving high-capacity and reversible energy storage in LIBs. Sol-gel method and pyrolysis treatment were used to obtain silica/silver composite particles used as templates. Polyphosphazene-coated silica/silver composite composite carbon materials (SiO2/Ag@PZS-C) were synthesized through in-situ self-assembly and carbonization of polyphosphazene. The electrochemical behavior and lithium storage mechanism of SiO2/Ag@PZS-C was also studied. The results reveal that the composite exhibited high specific capacity, stable cycling and superior rate performance. The double modification of silver nanoparticles and polyphosphazene carbon significantly improves the conductivity of silica and reduces the volume change. Moreover, the carbon shell of polyphosphazene facilitated the formation of a stable solid electrolyte interface film (SEI), preventing direct contact between the active material and the electrolyte, thereby substantially enhancing lithium storage performance.
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.3144/expresspolymlett.2024.75
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      – Text: English
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        PageCount: 15
        StartPage: 976
    Subjects:
      – SubjectFull: anode material
        Type: general
      – SubjectFull: polyphosphazenes
        Type: general
      – SubjectFull: silica
        Type: general
      – SubjectFull: PAN
        Type: general
      – SubjectFull: lithium-ion battery
        Type: general
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      – TitleFull: Preparation and lithium storage performance of SiO2/Ag composite materials coated with polyphosphazene
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            NameFull: Zhao, Zhengping
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            NameFull: Xu, Zhao
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            NameFull: Zheng, Zhong
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            NameFull: Wang, Wei
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            NameFull: Wang, Wenyu
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            NameFull: Zhu, Siqi
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            NameFull: Chew, Jia Wei
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            – D: 01
              M: 01
              Type: published
              Y: 2024
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