2017 Fiscal Year Final Research Report
Freestanding All-Solid-State Rechargeable Lithium Batteries with in-situ Formed Electrode and Lithium Metal
| Project/Area Number |
16K14100
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Device related chemistry
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Keywords | 全固体リチウム二次電池 / その場形成 / 界面 |
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| Outline of Final Research Achievements |
Freestanding all-solid-state rechargeable lithium batteries (Li/LiPON/LATP sheet/Au) were developed. Here, the LATP sheet is well-known solid electrolyte and is commercialized glass-ceramics Li+ conductive solid electrolyte sheet. Electrochemical lithium insertion reaction into the white-colored LATP sheet transformed it to a blue-colored in-situ formed electrode material operating at 2.3 V vs. Li/Li+. When this Li+ insertion reaction was carried out at 100 °C to the LATP sheet with the thickness of 150 μm, almost all the LATP sheet under the Au film converted to blue color, suggesting that freestanding in-situ formed electrode sheet were formed deeply inside the LATP sheet. The resultant SSB delivered ca. 300μAh cm-2 at 100 °C with the operating voltage at 2.3 V.
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| Free Research Field |
電池・電気化学
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