| Project/Area Number |
22655067
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic industrial materials
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| Research Institution | The University of Tokyo |
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Principal Investigator |
YAMADA Atsuo 東京大学, 大学院・工学系研究科, 教授 (30359690)
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| Project Period (FY) |
2010 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥540,000)
Fiscal Year 2012: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,300,000)
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| Keywords | 複数電荷応答 / 酸化還元電位 / インターカレーション / ピロリン酸 / ビロリン酸 / リチウム電池 / 正極 / 鉄 / マンガン |
|---|
| Research Abstract |
Pursuing eco-efficient sustainable synthesis, we have designed a two- step‘splash combustion synthesis (CS)’ method to obtain Fe(II)- based positive-electrodes starting with cheap Fe(III) precursors. As a proof-of-concept test, we can produce phase-pure nanoscale, carbon-coated Li2FeP2O7 in just 1 minute, delivering excellent electrochemical performance. CS forms a novel economical and energy-savvy route to form excellent Fe-based polyanionic positive- electrode compounds. Using this method, we have efficiently screened the related compounds and establish the materials group can provide both of high voltage and high safety, which are usually in trade-off. Activity of some oxalate compounds are also discovered.
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