Development of lithium-free sodium ion battery working at room temperature
| Project/Area Number |
15K18240
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Structural/Functional materials
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| Research Institution | National Institute of Advanced Industrial Science and Technology |
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Principal Investigator |
Riki Kataoka 国立研究開発法人産業技術総合研究所, 電池技術研究部門, 研究員 (20737994)
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| Project Period (FY) |
2015-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | ナトリウム二次電池 / 無機合成 / 酸化物 / 正極材料 |
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| Outline of Final Research Achievements |
A Sodium ion battery (SIB) is one of the candidates as alternative of a lithium ion battery (LIB) due to the abundance of sodium resources. In this study, we challenged to develop a high capacity positive electrode material for SIB comparable to that of LIB. Positive electrode active materials for the rechargeable sodium ion battery are in-situ synthesized during initial charge process in an electrochemical cell from precursor composites of Na and Mn oxides. By this approach, we directly synthesized a high capacity sodium-rich manganese oxide material for the first time, which have only been prepared by ion-exchange method so far. In addition, its initial gravimetric energy density, 550 Wh/kg, is comparable to that of a conventional material for LIB.
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Report
(3 results)
Research Products
(7 results)
