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Protocol of Electrochemical Test and Characterization of Aprotic Li-O2 Battery
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Flexible lithium-oxygen battery based on a recoverable cathode.

Qing-Chao Liu1,2, Ji-Jing Xu1, Dan Xu1

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Flexible lithium-oxygen (Li-O2) batteries offer high energy density for electronics. This study demonstrates a novel, flexible Li-O2 battery using TiO2 nanowire arrays on carbon textiles, showing excellent performance under stress and extended cycle life.

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Area of Science:

  • Materials Science
  • Electrochemistry
  • Energy Storage

Background:

  • Flexible power sources are essential for next-generation flexible electronics but are limited by low energy density.
  • Conventional lithium-oxygen (Li-O2) batteries offer high specific energies but are bulky and inflexible.

Purpose of the Study:

  • To develop a flexible Li-O2 battery with high energy density and electrochemical performance.
  • To address the limitations of conventional Li-O2 batteries for flexible electronic applications.

Main Methods:

  • Fabrication of a flexible Li-O2 battery using TiO2 nanowire arrays grown onto carbon textiles (NAs/CT) as a free-standing cathode.
  • Testing electrochemical performance under bending and twisting conditions.

Main Results:

  • The fabricated flexible Li-O2 battery demonstrated superior electrochemical performance.
  • Excellent performance was maintained even under stringent bending and twisting conditions.
  • The TiO2 NAs/CT cathode exhibited excellent recoverability, extending battery cycle life.

Conclusions:

  • A flexible Li-O2 battery can be successfully fabricated using TiO2 NAs/CT cathodes.
  • This flexible battery design offers high performance and durability for flexible electronics.
  • The improved recoverability and cycle life reduce the overall cost of Li-O2 battery technology.