| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Outline of Final Research Achievements |
When the LixSiy alloy phases were electrochemically formed on the Si(111) single-crystal surface in non-aqueous solutions, they have three-layered structure. It was concluded that the top is a single-crystalline Li15Si4 phase with a triangular pyramidal shape, the middle is the mixed phase of amorphous Li15Si4 and/or Li13Si4, and the bottom is the single-crystalline phase of Si(111) including amorphous Li15Si4 and/or Li13Si4, based on the experimental results. When those alloy phases were electrochemically formed on the Si(100) single-crystal surface, it was found that the top is the single-crystalline Li15Si4 phase with a rectangular pyramidal shape, the middle is the mixed phase of amorphous Li15Si4 and/or Li13Si4, and the bottom is the single-crystalline phase of Si(100) including Li metal atoms.
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