2009 Fiscal Year Final Research Report
Mechanochemical synthesis of electrode materials with high capacity and their application to all-solid-state lithium secondary batteries
| Project/Area Number |
19686039
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
HAYASHI Akitoshi Osaka Prefecture University, 工学研究科, 助教 (10364027)
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| Project Period (FY) |
2007 – 2009
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| Keywords | 全固体電池 / リチウム電池 / 電極活物質 / 固体電解質 / メカノケミストリー |
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| Research Abstract |
Development of all-solid-state lithium secondary batteries with high safety and reliability is highly demanded. In the present study, phosphorus-based anode materials and sulfur-based cathode materials with high capacity were mechanochemically synthesized. The mechanchemical process was also applied to the formation of a favorable contact among the active materials, a sulfide electrolyte and a conductive additive. It was found that surface modification of high-voltage cathodes with oxide and sulfide thin-films with lithium conductivity was effective in enhancing rate capability and energy density of solid-state batteries.
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