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Rational design of yolk-shell CoFe2O4 nanospheres towards enhanced lithium storage performance.

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Title: Rational design of yolk-shell CoFe2O4 nanospheres towards enhanced lithium storage performance.
Authors: Meng, Xiaoman1 (AUTHOR), Chen, Shiqi2 (AUTHOR), Wang, Jinkai1 (AUTHOR) happy_lifewjk@163.com, Wang, Shuoyu2 (AUTHOR), Liu, Zhi1 (AUTHOR), Wang, Zhengdong1 (AUTHOR) 804034945@qq.com
Source: Journal of Materials Science: Materials in Electronics. Apr2024, Vol. 35 Issue 11, p1-9. 9p.
Subjects: Laminated metals, Hybrid electric vehicles, Energy storage, Renewable energy sources, Storage, Ion-permeable membranes
Abstract: Co–Fe bimetal oxides have attracted increasing attention owing to their high theoretical capacity and multiple electrochemically active sites for lithium-ion battery which widely applied in electric/hybrid electric vehicles and renewable energy storage. However, Co–Fe bimetal oxides still suffer from the inherently poor conductivity and severe volume change upon lithiation/delithiation process, thus resulting in poor cycle stability. Herein, the yolk-shell CoFe2O4 nanospheres were prepared by a solvothermal method and subsequent calcination strategy. The phase and morphology can affect the electrochemical storage performance by adjusting the annealing temperature. Benefiting from the unique structure, the yolk-shell CoFe2O4 electrode displayed improved lithium storage performance and excellent rate capability, delivering a reversible capacity of ~ 912.7 mAh g−1 at 200 mA g−1 and 694.3 mAh g−1 at even a high current density of 1000 mA g−1. More importantly, this novel strategy can be commonly used to design various other bimetal oxides with novel nanostructures, which is promising for developing advanced electrodes for high-performance energy storage devices. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Materials Science: Materials in Electronics 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.)
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  Data: Rational design of yolk-shell CoFe<subscript>2</subscript>O<subscript>4</subscript> nanospheres towards enhanced lithium storage performance.
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Materials+Science%3A+Materials+in+Electronics%22">Journal of Materials Science: Materials in Electronics</searchLink>. Apr2024, Vol. 35 Issue 11, p1-9. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Laminated+metals%22">Laminated metals</searchLink><br /><searchLink fieldCode="DE" term="%22Hybrid+electric+vehicles%22">Hybrid electric vehicles</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+storage%22">Energy storage</searchLink><br /><searchLink fieldCode="DE" term="%22Renewable+energy+sources%22">Renewable energy sources</searchLink><br /><searchLink fieldCode="DE" term="%22Storage%22">Storage</searchLink><br /><searchLink fieldCode="DE" term="%22Ion-permeable+membranes%22">Ion-permeable membranes</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Co–Fe bimetal oxides have attracted increasing attention owing to their high theoretical capacity and multiple electrochemically active sites for lithium-ion battery which widely applied in electric/hybrid electric vehicles and renewable energy storage. However, Co–Fe bimetal oxides still suffer from the inherently poor conductivity and severe volume change upon lithiation/delithiation process, thus resulting in poor cycle stability. Herein, the yolk-shell CoFe2O4 nanospheres were prepared by a solvothermal method and subsequent calcination strategy. The phase and morphology can affect the electrochemical storage performance by adjusting the annealing temperature. Benefiting from the unique structure, the yolk-shell CoFe2O4 electrode displayed improved lithium storage performance and excellent rate capability, delivering a reversible capacity of ~ 912.7 mAh g−1 at 200 mA g−1 and 694.3 mAh g−1 at even a high current density of 1000 mA g−1. More importantly, this novel strategy can be commonly used to design various other bimetal oxides with novel nanostructures, which is promising for developing advanced electrodes for high-performance energy storage devices. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Materials Science: Materials in Electronics 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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        Text: English
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      – SubjectFull: Laminated metals
        Type: general
      – SubjectFull: Hybrid electric vehicles
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      – SubjectFull: Energy storage
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      – TitleFull: Rational design of yolk-shell CoFe2O4 nanospheres towards enhanced lithium storage performance.
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              Text: Apr2024
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