Design of solid interface for all-solid-state alkali metal batteries

2017 Fiscal Year Final Research Report

• Project/Area Number: 16K14394
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Inorganic materials/Physical properties
• Research Institution: Osaka Prefecture University
• Principal Investigator: Hayashi Akitoshi 大阪府立大学, 工学(系)研究科(研究院), 教授 (10364027)
• Project Period (FY): 2016-04-01 – 2018-03-31
• Keywords: アルカリ金属負極 / 全固体電池 / 固体界面

Outline of Final Research Achievements

We developed solid-solid interfaces between metal Li (or Na) and a solid electrolyte. The Li3PS4 electrolyte was partially decomposed at the vicinity of the interface. The Li dissolution-precipitation behavior was improved by both inserting Au thin-film at the interface and increasing operating temperatures. All-solid-state cells with Na-Sb / Na3PS4 interfaces operated reversibly and the preparation procedure of Na3PS4 thin-films by the PLD method were determined.

Free Research Field

無機材料化学