2018 Fiscal Year Annual Research Report
高エネルギー密度化に向けたナノ構造体有する新規電極材料の合成
| Project/Area Number |
18F18764
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| Research Institution | National Institute for Materials Science |
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Principal Investigator |
山内 悠輔 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, MANA主任研究者 (10455272)
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| Co-Investigator(Kenkyū-buntansha) |
DING BING 国立研究開発法人物質・材料研究機構, 国際ナノアーキテクトニクス研究拠点, 外国人特別研究員
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| Project Period (FY) |
2018-07-25 – 2021-03-31
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| Keywords | エネルギーデバイス |
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| Outline of Annual Research Achievements |
In this year, we developed different continuous mesoporous metals (Cu and Ni etc.) films, alloy (CuAu etc.) films, and multilayer metal film as 3D current collector for lithium anode by soft-template method with electrochemical deposition. In a typical procedure, block copolymer and metal salt were dissolved in specific solvent successively and used as electrolyte. Then programmed electrodepostion of mesoporous metal/alloy films were carried out with an electrochemical setup at a constant potential.
As another achievement, we demonstrated a solid/solid interfacial engineering method by atomic layer deposition (ALD) of Al2O3 on solid polymer electrolyte (SPE) surface. Electrochemical measurements indicated that the the ALD-Al2O3 coating was effective in suppressing the growth of lithium dendrite for over 500 h.
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| Current Status of Research Progress |
Current Status of Research Progress
2: Research has progressed on the whole more than it was originally planned.
Reason
記載している研究課題は着実に達成してきている．
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| Strategy for Future Research Activity |
We will prepare bimetal metal-organic frameworks (BiMOF)-derived porous carbon through a self template-directed synthesis strategy followed by high temperature pyrolysis. In a typical procedure, bimetal (e.g., Zn coupled with Ni, Co, Fe) oxide, carbonate and hydroxide are used the metal sources and templates to induce the growth of nanostructured BiMOFs. Both morphology and composition of BiMOFs can be controlled by choosing different templates and adjusting reaction conditions. Sulfur electrode will be prepared by a melt diffusion method. Electrochemical performances of sulfur cathode will be evaluated through cyclic voltammetry (CV), galvanostatic charge/discharge, and EIS. The effects of morphology and porosity of carbon-based nano-host on the performance of sulfur cathode will be systematically studied.
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