Preparation of nanocomposite electrodes for all-solid-state sodium secondary batteries

2014 Fiscal Year Final Research Report

• Project/Area Number: 25630285
• 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: TATSUMISAGO Masahiro 大阪府立大学, 工学(系)研究科(研究院), 教授 (50137238)
• Co-Investigator(Kenkyū-buntansha): HAYASHI Akitoshi 大阪府立大学, 大学院工学研究科, 准教授 (10364027)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: 全固体電池 / 固体電解質 / ミカノケミストリー / ナトリウム電池

Outline of Final Research Achievements

Composite electrodes including sulfur, titanium trisulfide, or black phosphorus as an active material with high theoretical capacity were prepared for application to all-solid-state sodium batteries. The composite electrodes were mechanically milled for pulverization of active materials and forming large contact areas among active materials, conductive additives and solid electrolytes. The effects of the electrode compositions and milling processes on battery performance were examined. All-solid-state Na/S batteries with prepared sulfur composite electrodes exhibited a reversible capacity of about 1200 mAh per gram of sulfur. Moreover, the composite materials with NiS electrode and Na3PS4 electrolyte were synthesized via mechanochemical process.

Free Research Field

無機材料化学