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The sinterability of oxide cathode LiCoO2 and garnet-type solid electrolyte Li7-xLa3Zr2-xTaxO12 (x = 0.5) at 980 and 1080 °C has been studied using an integrated suite of scanning transmission electron microscopy and spectroscopic techniques, with a particular focus on the LiCoO2/Li7-xLa3Zr2-xTaxO12 interfaces. Whereas the densification hardly progresses and the interdiffusion is limited to the vicinity of the interface at 980 °C, dramatic densification can be achieved at 1080 °C at the expense of severe interfacial modification. The structural, chemical, and electronic characteristics of the interphases are systematically investigated.

権利情報:

• Creative Commons BY Attribution 4.0 International
  

キーワード: 固体蓄電池, 界面, リチウムイオン電池, 全固体電池

刊行年月日: 2025-02-10

出版者: Elsevier BV

掲載誌:

• Solid State Ionics (ISSN: 01672738) vol. 421 116804

研究助成金:

• Government of Japan Ministry of Education Culture Sports Science and Technology JPMXP0219207397

原稿種別: 出版者版 (Version of record)

MDR DOI:

公開URL: https://doi.org/10.1016/j.ssi.2025.116804

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更新時刻: 2025-03-26 17:26:50 +0900

MDRでの公開時刻: 2025-03-26 17:26:50 +0900