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Controlled Ag-driven superior rate-capability of Li4Ti5O12 anodes for lithium rechargeable batteries

Journal Article


Abstract


  • The morphology and electronic structure of a Li4Ti5O12 anode are known to determine its electrical and electrochemical properties in lithium rechargeable batteries. Ag-Li4Ti5O12 nanofibers have been rationally designed and synthesized by an electrospinning technique to meet the requirements of one-dimensional (1D) morphology and superior electrical conductivity. Herein, we have found that the 1D Ag-Li4Ti5O12 nanofibers show enhanced specific capacity, rate capability, and cycling stability compared to bare Li4Ti5O12 nanofibers, due to the Ag nanoparticles (<5 nm), which are mainly distributed at interfaces between Li4Ti5O12 primary particles. This structural morphology gives rise to 20% higher rate capability than bare Li4Ti5O12 nanofibers by facilitating the charge transfer kinetics. Our findings provide an effective way to improve the electrochemical performance of Li4Ti5O12 anodes for lithium rechargeable batteries.

Authors


  •   Kim, Jae-Geun (external author)
  •   Shi, Dongqi
  •   Park, Min-Sik (external author)
  •   Jeong, Goojin (external author)
  •   Heo, Yoon-Uk (external author)
  •   Seo, Minsu (external author)
  •   Kim, Young-Jun (external author)
  •   Kim, Jung Ho
  •   Dou, Shi Xue

Publication Date


  • 2013

Citation


  • Kim, J., Shi, D., Park, M., Jeong, G., Heo, Y., Seo, M., Kim, Y., Kim, J. & Dou, S. Xue. (2013). Controlled Ag-driven superior rate-capability of Li4Ti5O12 anodes for lithium rechargeable batteries. Nano Research, 6 (5), 365-372.

Scopus Eid


  • 2-s2.0-84877793939

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/729

Number Of Pages


  • 7

Start Page


  • 365

End Page


  • 372

Volume


  • 6

Issue


  • 5

Abstract


  • The morphology and electronic structure of a Li4Ti5O12 anode are known to determine its electrical and electrochemical properties in lithium rechargeable batteries. Ag-Li4Ti5O12 nanofibers have been rationally designed and synthesized by an electrospinning technique to meet the requirements of one-dimensional (1D) morphology and superior electrical conductivity. Herein, we have found that the 1D Ag-Li4Ti5O12 nanofibers show enhanced specific capacity, rate capability, and cycling stability compared to bare Li4Ti5O12 nanofibers, due to the Ag nanoparticles (<5 nm), which are mainly distributed at interfaces between Li4Ti5O12 primary particles. This structural morphology gives rise to 20% higher rate capability than bare Li4Ti5O12 nanofibers by facilitating the charge transfer kinetics. Our findings provide an effective way to improve the electrochemical performance of Li4Ti5O12 anodes for lithium rechargeable batteries.

Authors


  •   Kim, Jae-Geun (external author)
  •   Shi, Dongqi
  •   Park, Min-Sik (external author)
  •   Jeong, Goojin (external author)
  •   Heo, Yoon-Uk (external author)
  •   Seo, Minsu (external author)
  •   Kim, Young-Jun (external author)
  •   Kim, Jung Ho
  •   Dou, Shi Xue

Publication Date


  • 2013

Citation


  • Kim, J., Shi, D., Park, M., Jeong, G., Heo, Y., Seo, M., Kim, Y., Kim, J. & Dou, S. Xue. (2013). Controlled Ag-driven superior rate-capability of Li4Ti5O12 anodes for lithium rechargeable batteries. Nano Research, 6 (5), 365-372.

Scopus Eid


  • 2-s2.0-84877793939

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/729

Number Of Pages


  • 7

Start Page


  • 365

End Page


  • 372

Volume


  • 6

Issue


  • 5