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Electrochemical behaviors and electrochemical performances of lithium-selenium battery using selenium/carbon as cathode in different electrolytes.

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Title: Electrochemical behaviors and electrochemical performances of lithium-selenium battery using selenium/carbon as cathode in different electrolytes.
Authors: Lu, Bo1 (AUTHOR), Wang, Zeng-Rong1 (AUTHOR), Sun, Qiang1 (AUTHOR) sunq@smm.neu.edu.cn
Source: Journal of Electroanalytical Chemistry. Sep2022, Vol. 921, pN.PAG-N.PAG. 1p.
Subjects: Electrolytes, Selenium, Cathodes, Energy density, Electrochemical electrodes, Carbon
Abstract: • Se/KB got severe overcharging in ether-based electrolyte due to polyselenide shuttle. • Se/KB displays a moderate electrochemical performance in ester-based electrolyte. • Se/KB cathode shows extremely high Se utilization in the solvate electrolyte. • Se/KB shows a capacity of 516 mA h g−1 at 1 C after 200 cycles in solvate electrolyte. Lithium-selenium (Li-Se) battery with high theoretical volume energy density (3253 mA h cm−3) is a very promising next-generation energy storge system, however, it still faces the problems of polyselenide generation and dissolution, as well as low active material utilization. Herein, electrochemical performance of Se/carbon cathode for Li-Se battery in three kinds of electrolytes, e.g. , ether-based, ester-based and solvate electrolyte, were studied to discuss the possibility of capacity as well as cycle life regulation. The Se/carbon cathode showed significant overcharging in the ether-based electrolyte owing to a severe polyselenide shuttle problem, and displayed a moderate electrochemical performance in ester-based electrolyte. Due to the no free solvent property of the solvate electrolyte, the Se/carbon cathode obtained extremely high Se utilization with an initial specific capacity of 621 mA h g−1 and a reversible capacity of 516 mA h g−1 at 1.0C current rate after 200cycles. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Electroanalytical Chemistry 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
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Electrochemical behaviors and electrochemical performances of lithium-selenium battery using selenium/carbon as cathode in different electrolytes.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Lu%2C+Bo%22">Lu, Bo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Zeng-Rong%22">Wang, Zeng-Rong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Qiang%22">Sun, Qiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sunq@smm.neu.edu.cn</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Journal+of+Electroanalytical+Chemistry%22">Journal of Electroanalytical Chemistry</searchLink>. Sep2022, Vol. 921, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Electrolytes%22">Electrolytes</searchLink><br /><searchLink fieldCode="DE" term="%22Selenium%22">Selenium</searchLink><br /><searchLink fieldCode="DE" term="%22Cathodes%22">Cathodes</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+density%22">Energy density</searchLink><br /><searchLink fieldCode="DE" term="%22Electrochemical+electrodes%22">Electrochemical electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon%22">Carbon</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • Se/KB got severe overcharging in ether-based electrolyte due to polyselenide shuttle. • Se/KB displays a moderate electrochemical performance in ester-based electrolyte. • Se/KB cathode shows extremely high Se utilization in the solvate electrolyte. • Se/KB shows a capacity of 516 mA h g−1 at 1 C after 200 cycles in solvate electrolyte. Lithium-selenium (Li-Se) battery with high theoretical volume energy density (3253 mA h cm−3) is a very promising next-generation energy storge system, however, it still faces the problems of polyselenide generation and dissolution, as well as low active material utilization. Herein, electrochemical performance of Se/carbon cathode for Li-Se battery in three kinds of electrolytes, e.g. , ether-based, ester-based and solvate electrolyte, were studied to discuss the possibility of capacity as well as cycle life regulation. The Se/carbon cathode showed significant overcharging in the ether-based electrolyte owing to a severe polyselenide shuttle problem, and displayed a moderate electrochemical performance in ester-based electrolyte. Due to the no free solvent property of the solvate electrolyte, the Se/carbon cathode obtained extremely high Se utilization with an initial specific capacity of 621 mA h g−1 and a reversible capacity of 516 mA h g−1 at 1.0C current rate after 200cycles. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Electroanalytical Chemistry 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.jelechem.2022.116654
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Electrolytes
        Type: general
      – SubjectFull: Selenium
        Type: general
      – SubjectFull: Cathodes
        Type: general
      – SubjectFull: Energy density
        Type: general
      – SubjectFull: Electrochemical electrodes
        Type: general
      – SubjectFull: Carbon
        Type: general
    Titles:
      – TitleFull: Electrochemical behaviors and electrochemical performances of lithium-selenium battery using selenium/carbon as cathode in different electrolytes.
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            NameFull: Lu, Bo
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            NameFull: Wang, Zeng-Rong
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            NameFull: Sun, Qiang
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            – D: 15
              M: 09
              Text: Sep2022
              Type: published
              Y: 2022
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              Value: 921
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            – TitleFull: Journal of Electroanalytical Chemistry
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