Negligible "negative space-charge layer effects" at oxide-electrolyte/electrode interfaces of thin-film batteries

Masakazu Haruta, Susumu Shiraki, Tohru Suzuki, Akichika Kumatani, Takeo Ohsawa, Yoshitaka Takagi, Ryouta Shimizu, Taro Hitosugi

Research output: Contribution to journalArticlepeer-review

Abstract

In this paper, we report the surprisingly low electrolyte/electrode interface resistance of 8.6 ω cm2 observed in thin-film batteries. This value is an order of magnitude smaller than that presented in previous reports on all-solid-state lithium batteries. The value is also smaller than that found in a liquid electrolyte-based batteries. The low interface resistance indicates that the negative space-charge layer effects at the Li3PO4-xNx/LiCoO2 interface are negligible and demonstrates that it is possible to fabricate all-solid state batteries with faster charging/discharging properties.

Original languageEnglish
Pages (from-to)1498-1502
Number of pages5
JournalNano Letters
Volume15
Issue number3
DOIs
Publication statusPublished - 2015 Mar 11

Keywords

  • charge-transfer resistance
  • interface resistance
  • Li-ion battery
  • solid electrolyte
  • space-charge layer effect
  • thin-film battery

ASJC Scopus subject areas

  • Bioengineering
  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanical Engineering

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