WEKO3
アイテム
高いイオン伝導性をもつ高分子固体電解質の開発及びナトリウムイオン電池への応用
https://doi.org/10.18997/0002000117
https://doi.org/10.18997/00020001171d6face8-4687-4dae-9ae5-6b8ceb962d4d
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
sei_k_446.pdf (4.8 MB)
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| アイテムタイプ | 学位論文 = Thesis or Dissertation(1) | |||||||
|---|---|---|---|---|---|---|---|---|
| 公開日 | 2023-09-25 | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||
| 資源タイプ | doctoral thesis | |||||||
| タイトル | ||||||||
| タイトル | Development of Polymer Solid Electrolytes with High Ionic Conductivity and Application to Sodium-ion Battery | |||||||
| 言語 | en | |||||||
| タイトル | ||||||||
| タイトル | 高いイオン伝導性をもつ高分子固体電解質の開発及びナトリウムイオン電池への応用 | |||||||
| 言語 | ja | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| 著者 |
Zhao, Yue
× Zhao, Yue
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Solid electrolytes have a great potential to replace traditional flammable liquid electrolytes for lithium/sodium ion batteries. The improvement of solid-state batteries (SSBs) in terms of safety and energy density has an extraordinary significance for their application. The interface contact between solid-state electrolytes and electrode materials is the key issue. Therefore, in this thesis, three new solid electrolytes were synthesized by simple methods, which could have high specific capacities by combining with three anode materials. Furthermore, we investigated the properties of the solid electrolytes and their interfaces with the electrode materials. In Chapter 1, the research backgrounds of sodium-ion batteries (SIBS), solid electrolytes, and electrode materials were introduced. In addition, the structures and working principles of solid electrolytes and anode materials were also described. Moreover, the classification of solid electrolytes and structure properties of different anode materials were introduced. In Chapter 2, the reagents and apparatus used in this work were listed. We displayed the processes of assembling batteries in this chapter. In addition, the physical characterization and electrochemical measurements for the as-prepared materials were introduced, including SEM measurement, XRD measurement, cyclic voltammetry, and so on. In Chapter 3, PVDF-HFP and SnO2 were used to obtain the adjustable porous 3D network structure and optimize the ion conductive path in the gel polymer electrolyte. The 3D network structure provides favorable channels for storing and transporting sodium ions, and the imino nitrogen atom of 1-(4-cyanophenyl)guanidine can form a ligand with sodium ions to enhance the conduction of Na+. The gel polymer electrolyte (PSGGSE) obtained an ionic conductivity of 0.232 mS cm-1 at 70 °C, and could be easy to form a stable interface with the NiMoO4 anode presenting excellent cycling stability. In Chapter 4, we replaced the binder with a polymer solid electrolyte to design an integrated electrode, which reduced the random interface between the solid-state electrolyte and the anode material. In this chapter, the polymer solid electrolytes based on NaPF6 and PVDF-HFP were prepared by direct film formation. Coating the polymer solid electrolyte on the electrode of MoS2 is beneficial to protecting the electrode surface and reducing the damage to the electrode structure during the insertion/extraction of sodium ions. In Chapter 5, we designed a 3D integrated electrode consisting of the Cu2MoS4 material grown in situ on the surface of the copper foam and a PVDF-HFP-based salt-in-polymer solid electrolyte. The ion clusters formed by NaPF6 near the PVDF-HFP network structure can effectively shorten the Na+ transport path, and the addition of 1-(4-cyanophenyl)guanidine can also provide more ion transport routes by forming coordination bonds. This 3D integrated electrode exhibited excellent interface-contact compatibility, mechanical stability and electrochemical performance. In conclusion, the performance of sodium-ion batteries can be effectively improved by enhancing the interfacial contact of solid electrolytes and electrodes through structural optimization and design. In addition, these studies provide new ideas on developing the solid electrolyte to replace traditional flammable liquid electrolytes for next-generation battery applications. |
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| 言語 | en | |||||||
| 目次 | ||||||||
| 内容記述タイプ | TableOfContents | |||||||
| 内容記述 | 1 Introduction||2 Experimental section||3 A cross-linked tin oxide/polymer composite gel electrolyte with adjustable porosity for enhanced Sodium-ion batteries||4 Synthesis and Evaluation of MoS2 Integrated Electrode for Sodium-ion Batteries||5 Integrating a Three-dimensional Cu2MoS4 Electrode and Solid-state Polymer Electrolyte for Sodium-ion Batteries | |||||||
| 言語 | en | |||||||
| 備考 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 九州工業大学博士学位論文 学位記番号：生工博甲第446号 学位授与年月日：令和4年9月26日 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Sodium-ion Battery | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | High Ionic Conductivity | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Solid Electrolytes | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | Polymer Electrolytes | |||||||
| アドバイザー | ||||||||
| 馬, 廷麗 | ||||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第446号 | |||||||
| 学位名 | ||||||||
| 学位名 | 博士（工学） | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2022-09-26 | |||||||
| 学位授与機関 | ||||||||
| 学位授与機関識別子Scheme | kakenhi | |||||||
| 学位授与機関識別子 | 17104 | |||||||
| 学位授与機関名 | 九州工業大学 | |||||||
| 学位授与年度 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 令和4年度 | |||||||
| 出版タイプ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| ID登録 | ||||||||
| ID登録 | 10.18997/0002000117 | |||||||
| ID登録タイプ | JaLC | |||||||
