2019 Fiscal Year Research-status Report
Self-healing anti aromatic batteries
| Project/Area Number |
18K04925
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| Research Institution | Nagoya University |
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Principal Investigator |
Shin Jiyoung 名古屋大学, 工学研究科(国際), 特任教授 (30622295)
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| Project Period (FY) |
2018-04-01 – 2021-03-31
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| Keywords | porphyrinoid / Li-organic battery / Dipyrrin / Diazepinopyrrolizine / Vibration spectroscopy |
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| Outline of Annual Research Achievements |
It is no doubt that daily source of energy consumption is essential, associated with the quality of our lives. Li-organic batteries have been widely enquired by adopting distinct and suitable organic molecules. Since Ni(II) norcorrole (NiNC) has exhibited excellent interconversions between antiaromatic and aromatic conformations and precise battery behaviors, elongated π-conjugation molecules having such interconversion capability were considered toward active electrode materials for organic batteries. Lithium-collaborating organic battery (Li-[28]hex) was investigated in the use of [28]hexaphyrin (1.1.1.1.1.1), where each hexaphyrin of [28]Hex cathode involved four electrons per unit cycle. It performed a typical battery performance, which was reasonably stable over 200 cycles with a fast charging rate. (Molecules 2019, 24, 2433)
It is essential to characterize precise molecular structures and examine the chemical/photo-physical behaviors to investigate photo-responsible components toward functional battery materials. Since the elongated π-conjugation molecules were produced in the metallation of a dipyrrin derivative, resembled reactions towards novel π-conjugation molecules were investigated: Diazepinopyrrolizine derivatives were prepared in the reactions of the dicyanovinylene-dipyrrin derivative with BF3.OEt2 and InBr3 and the structures were elucidated by X-ray diffraction analysis. (RSC adv. 2019, 9, 40031)
IR and Raman vibrational behaviors of the NiNC-NiNC dimer were investigated and published. (J. Porphyrins Phthalocyanines 2020, 24, 191)
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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
Progressing results were published in three international journals (Molecules 2019, 24, 2433; RSC adv. 2019, 9, 40031; J. Porphyrins Phthalocyanines 2020, 24, 191)
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| Strategy for Future Research Activity |
The connection between molecular properties and battery proficiency is studied and investigated. Not only the electrode material itself but also other components in batteries, such as electrolyte and commercialized battery kit, are also explored to achieve the proper behaviors towards photo- and redox-responsible, as well as appropriate battery behaviors with self-healing capability. However, due to the coronavirus trajectory, delay of the research progress is expected.
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