Formation of a conductive path in an insulating lithium double oxide particle

• Project/Area Number: 24760559
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Composite materials/Physical properties
• Research Institution: University of Fukui
• Principal Investigator: KODERA TAKAYUKI 福井大学, 工学(系)研究科(研究院), 特命助教 (80456433)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Project Status: Completed (Fiscal Year 2014)
• Budget Amount: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2012: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
• Keywords: 複合効果 / 複合化 / 複合材料 / 粉体合成 / イオン導電パス / 正極材料 / リチウム電池 / 複合粒子

Outline of Final Research Achievements

In this study, we tried to form a conductive path in an insulating lithium double oxide particle in order to improve the diffusion reaction of electrons and lithium ions in the lithium double oxide particle. The lithium double oxide particles were prepared by spray pyrolysis process. The conductive path was formed by carbon particles. It was found that changing the starting materials, pyrolysis temperature and frequency of oscillatory wave in spray pyrolysis process influence the microstructure of lithium double oxide particles. It was suggested that changing of the microstructure of lithium double oxide particles are attributable to the thermal behavior of the starting materials and the energy of oscillatory wave.