Fundamental research on peroxides for next-generation secondary batteries

• Project/Area Number: 24656454
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Metal making engineering
• Research Institution: The University of Tokyo
• Principal Investigator: Sasaki Hideaki 東京大学, 生産技術研究所, 助教 (10581746)
• Co-Investigator(Kenkyū-buntansha): MAEDA Masafumi 東京大学, 生産技術研究所, 教授 (70143386)
• Project Period (FY): 2012-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2014: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 過酸化物 / 複合酸化物

Outline of Final Research Achievements

Considering a potential use of peroxides as cathodes for secondary batteries, the thermal stability of an alkaline-earth metal peroxide was investigated. Decomposition of barium peroxide at high temperatures was examined by gravimetric measurements and video observations in air. Compound formation of the peroxide with oxides containing other alkaline-earth elements were also examined under atmospheric condition at high temperatures. Cation exchange reaction between the peroxide and an alkali metal oxide was investigated as well using an elemental substance or nitrate as a starting material.