ZrO2 -Modified LiMn2 O4 Thin-Film Cathodes Prepared by Pulsed Laser Deposition

Dong Wook Shin, Ji Won Choi, Jae Pyoung Ahn, Won Kook Choi, Yong Soo Cho, Seok Jin Yoon

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

The study on the influences of ZrO2 addition in LiMn2 O4 thin films as cathodes was driven by the need to improve the physical and electrochemical performances of thin-film lithium batteries. The films of x ZrO2 - LiMn2 O4 at x=0.025 possessed a high capacity retention of > 82% at 4C after 130 cycles, compared to 68% at x=0, due to the formation of amorphous ZrO2 on the grain boundary and surface out of the LiMn2 O4 matrix via the pulsed laser deposition. The ZrO2 modification decreased the charge-transfer resistance (Rct) and unwanted phase transition of the LiMn2 O 4 cathode film.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume157
Issue number5
DOIs
Publication statusPublished - 2010 Apr 27

Fingerprint

Pulsed laser deposition
pulsed laser deposition
Cathodes
cathodes
Thin films
Lithium batteries
lithium batteries
thin films
Charge transfer
Grain boundaries
grain boundaries
Phase transitions
charge transfer
cycles
matrices

All Science Journal Classification (ASJC) codes

  • Electrochemistry
  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Renewable Energy, Sustainability and the Environment
  • Condensed Matter Physics

Cite this

Shin, Dong Wook ; Choi, Ji Won ; Ahn, Jae Pyoung ; Choi, Won Kook ; Cho, Yong Soo ; Yoon, Seok Jin. / ZrO2 -Modified LiMn2 O4 Thin-Film Cathodes Prepared by Pulsed Laser Deposition. In: Journal of the Electrochemical Society. 2010 ; Vol. 157, No. 5.
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ZrO2 -Modified LiMn2 O4 Thin-Film Cathodes Prepared by Pulsed Laser Deposition. / Shin, Dong Wook; Choi, Ji Won; Ahn, Jae Pyoung; Choi, Won Kook; Cho, Yong Soo; Yoon, Seok Jin.

In: Journal of the Electrochemical Society, Vol. 157, No. 5, 27.04.2010.

Research output: Contribution to journalArticle

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T1 - ZrO2 -Modified LiMn2 O4 Thin-Film Cathodes Prepared by Pulsed Laser Deposition

AU - Shin, Dong Wook

AU - Choi, Ji Won

AU - Ahn, Jae Pyoung

AU - Choi, Won Kook

AU - Cho, Yong Soo

AU - Yoon, Seok Jin

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AB - The study on the influences of ZrO2 addition in LiMn2 O4 thin films as cathodes was driven by the need to improve the physical and electrochemical performances of thin-film lithium batteries. The films of x ZrO2 - LiMn2 O4 at x=0.025 possessed a high capacity retention of > 82% at 4C after 130 cycles, compared to 68% at x=0, due to the formation of amorphous ZrO2 on the grain boundary and surface out of the LiMn2 O4 matrix via the pulsed laser deposition. The ZrO2 modification decreased the charge-transfer resistance (Rct) and unwanted phase transition of the LiMn2 O 4 cathode film.

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