Zero-strain Li insertion materials for advanced lithium-ion batteries
Project/Area Number |
25410207
|
Research Category |
Grant-in-Aid for Scientific Research (C)
|
Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Energy-related chemistry
|
Research Institution | Toyota Central R&D Lab., Inc. |
Principal Investigator |
MUKAI KAZUHIKO 株式会社豊田中央研究所, 戦略先端研究領域 機能性Si低次元材料プログラム, 主任研究員 (50394812)
|
Project Period (FY) |
2013-04-01 – 2016-03-31
|
Project Status |
Completed (Fiscal Year 2015)
|
Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2013: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
|
Keywords | リチウムイオン電池 / リチウムチタン酸化物 / スピネル構造 / 負極活物質 / 結晶構造 / 電気化学反応 / 磁性 / 相転移 / Li導電率 / Liイオン電池 / インサーション材料 / エネルギー関連 |
Outline of Final Research Achievements |
A series of lithium iron titanium oxides of Li1/2+1/2xFe5/2-3/2xTixO4 with 0 <= x <= 1.666 was prepared by a conventional solid-state reaction technique, and was examined as a negative electrode material for advanced lithium-ion batteries. Powder X-ray diffraction measurements and Raman spectroscopy clarified that the crystal structure of Li1/2+1/2xFe5/2-3/2xTixO4 is divided as two regions; the region at x <= 1 with cation order between Li and Fe ions and the region at x > 1 with cation order between Li and Ti ions. Structural and electrochemical studies were also performed for Li[Ni1/2Mn3/2]O4 and LiCo1-xNixO2, which are suitable as a positive electrode material for lithium-ion batteries using the Li1/2+1/2xFe5/2-3/2xTixO4 materials.
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Report
(4 results)
Research Products
(23 results)