Germanium nanowires-based carbon composite as anodes for lithium-ion batteries

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Title: Germanium nanowires-based carbon composite as anodes for lithium-ion batteries
Authors: Tan, Li Ping1, Lu, Ziyang1, Tan, Hui Teng1, Zhu, Jixin1, Rui, Xianhong1,2, Yan, Qingyu1,3, Hng, Huey Hoon1,3 ashhhng@ntu.edu.sg
Source: Journal of Power Sources. May2012, Vol. 206, p253-258. 6p.
Subjects: Lithium-ion batteries, Germanium, Nanowires, Carbon composites, Energy storage, Current density (Electromagnetism), Electric potential
Abstract: Abstract: Lithium-ion batteries have been actively researched in recent years due to it being one of the most promising energy storage systems. Herein, we report a novel approach where germanium nanowires (Ge NW) are grown in gold-seeded porous carbon via the solution–liquid–solid mechanism, and the corresponding improvement observed in terms of the specific capacity of this porous carbon–germanium nanowires (PC–Ge NW) composite anode. At a current density of 160mAg−1 and voltage window of 0.001–1.5V, a specific capacity of 789mAhg−1 during the 50th cycle for PC–Ge NW is achieved as compared to 624mAhg−1 during the 50th cycle for pure Ge NW. Even though the content of the Ge is only 53.5 weight percent in the PC–Ge NW composite, it yields a better stability and higher specific capacity, indicating a synergistic effect between porous carbon and Ge nanowires. There is also potential cost savings since the use of a lower amount of Ge can bring about good cycling properties. [Copyright &y& Elsevier]
Copyright of Journal of Power Sources is the property of Elsevier B.V. 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.)
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DbLabel: Engineering Source
An: 73338971
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PubType: Academic Journal
PubTypeId: academicJournal
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  Label: Title
  Group: Ti
  Data: Germanium nanowires-based carbon composite as anodes for lithium-ion batteries
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  Data: <searchLink fieldCode="AR" term="%22Tan%2C+Li+Ping%22">Tan, Li Ping</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lu%2C+Ziyang%22">Lu, Ziyang</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Tan%2C+Hui+Teng%22">Tan, Hui Teng</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Zhu%2C+Jixin%22">Zhu, Jixin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Rui%2C+Xianhong%22">Rui, Xianhong</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Yan%2C+Qingyu%22">Yan, Qingyu</searchLink><relatesTo>1,3</relatesTo><br /><searchLink fieldCode="AR" term="%22Hng%2C+Huey+Hoon%22">Hng, Huey Hoon</searchLink><relatesTo>1,3</relatesTo><i> ashhhng@ntu.edu.sg</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Power+Sources%22">Journal of Power Sources</searchLink>. May2012, Vol. 206, p253-258. 6p.
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  Data: <searchLink fieldCode="DE" term="%22Lithium-ion+batteries%22">Lithium-ion batteries</searchLink><br /><searchLink fieldCode="DE" term="%22Germanium%22">Germanium</searchLink><br /><searchLink fieldCode="DE" term="%22Nanowires%22">Nanowires</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+composites%22">Carbon composites</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+storage%22">Energy storage</searchLink><br /><searchLink fieldCode="DE" term="%22Current+density+%28Electromagnetism%29%22">Current density (Electromagnetism)</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+potential%22">Electric potential</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Abstract: Lithium-ion batteries have been actively researched in recent years due to it being one of the most promising energy storage systems. Herein, we report a novel approach where germanium nanowires (Ge NW) are grown in gold-seeded porous carbon via the solution–liquid–solid mechanism, and the corresponding improvement observed in terms of the specific capacity of this porous carbon–germanium nanowires (PC–Ge NW) composite anode. At a current density of 160mAg−1 and voltage window of 0.001–1.5V, a specific capacity of 789mAhg−1 during the 50th cycle for PC–Ge NW is achieved as compared to 624mAhg−1 during the 50th cycle for pure Ge NW. Even though the content of the Ge is only 53.5 weight percent in the PC–Ge NW composite, it yields a better stability and higher specific capacity, indicating a synergistic effect between porous carbon and Ge nanowires. There is also potential cost savings since the use of a lower amount of Ge can bring about good cycling properties. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Power Sources is the property of Elsevier B.V. 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:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.jpowsour.2011.12.064
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 253
    Subjects:
      – SubjectFull: Lithium-ion batteries
        Type: general
      – SubjectFull: Germanium
        Type: general
      – SubjectFull: Nanowires
        Type: general
      – SubjectFull: Carbon composites
        Type: general
      – SubjectFull: Energy storage
        Type: general
      – SubjectFull: Current density (Electromagnetism)
        Type: general
      – SubjectFull: Electric potential
        Type: general
    Titles:
      – TitleFull: Germanium nanowires-based carbon composite as anodes for lithium-ion batteries
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            NameFull: Tan, Li Ping
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            NameFull: Lu, Ziyang
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            NameFull: Tan, Hui Teng
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            NameFull: Zhu, Jixin
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            NameFull: Rui, Xianhong
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            NameFull: Yan, Qingyu
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            NameFull: Hng, Huey Hoon
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            – D: 15
              M: 05
              Text: May2012
              Type: published
              Y: 2012
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              Value: 03787753
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              Value: 206
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            – TitleFull: Journal of Power Sources
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