ナノ構造を有する負極材料の開発と高性能リチウムイオン及びナトリウムイオン電池への応用

• Material Type: 博士論文
• Title: ナノ構造を有する負極材料の開発と高性能リチウムイオン及びナトリウムイオン電池への応用
• Author/Editor: Chen, Yun
• Author Heading: Chen, Yun
• Publication Date: 2021-09-24
• Publication Date (W3CDTF): 2021-09-24
• Alternative Title: Development of Nanostructured Anode Materials and Application to High Performance Lithium-ion Batteries and Sodium-ion Batteries
• Degree Grantor: 九州工業大学
• Date Granted: 2021-09-24
• Date Granted (W3CDTF): 2021-09-24
• Dissertation Number: 甲第412号
• Degree Type: 博士（工学）
• Conferring No. (Dissertation): 甲生工第412号
• Text Language Code: eng
• Subject Heading: Anode material; Lithium-ion batteries; Sodium-ion Batteries; Stability; Nanostructured
• Target Audience: 一般
• Note (General): 出版タイプ： VoR; 九州工業大学博士学位論文 学位記番号：生工博甲第412号 学位授与年月日：令和3年9月24日; 令和3年度
• DOI: 10.18997/00008670; https://doi.org/10.18997/00008670
• Persistent ID (NDL): info:ndljp/pid/12071194; https://dl.ndl.go.jp/pid/12071194
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2022-02-06T04:33:19+09:00
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
• Service for the Digitized Contents Transmission Service: 図書館・個人送信対象外
• Availability of remote photoduplication service: 可
• Periodical Title (URI): https://doi.org/10.18997/00008670; http://hdl.handle.net/10228/00008670
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

• Summary, etc.: The main research of this thesis focuses on improving specific capacity and stability by design and synthesis silicon-based anode composite materials to develop high performance lithium-ion batteries （LIB）. Firstly, we have synthesized a highly porous composite of SiOx/C by a simple in-situ synthesis method from an abundance carbon source, which was derived from equisetum arvense in nature. The obtained SiOx/C composite exhibits high capacities （773 mA h g−1 at 0.1 A g−1） as the anode materials of LIB after 100 cycles. To reduce the cost of LIB and replace Li, the sodium ion battery has been paid much attention. Therefore, we also synthesized a unique ternary hybrid structure by simultaneously growing nanoparticles of SnS2 and FeS2 on graphene sheet （SnS2 /FeS2 /rGO） via a simple hydrothermal method. We found that the SnS2 /FeS2 /rGO composite has high capacity （763.4 mA h g-1 at 0.1 A g−1） and show superior cycling stability than the pure materials of SnS2 and FeS2, respectively. These results show that design of the composite of bimetallic sulfide and graphene is an effect method to improve the performance for sodium ion batteries. In Chapter 1, we have introduced the background and the structure of lithium-ion batteries （LIBs） and sodium-ion batteries （SIBs）. In addition, we summarize the morphology and pore structure of biomass-derived materials and discuss the electrochemical performance of the LIBs and SIBs. In Chapter 2, we have obtained a highly porous composite of SiOx/C by a very simple in-situ synthesis method, which was derived from equisetum arvense. The derived SiOx/C anodes had an electrochemical performance with a large discharge capacity of 2366 mA h g−1 at 0.1 A g−1 in the first cycle and an appropriate reversible capacity of 773 mA h g−1 at 0.1 A g−1 after 100 cycles. In Chapter 3, we used rGO as a basement and synthesized SnS2/FeS2/rGO anode material through the hydrothermal method. Compared with the mono mental sulfide SnS2 and FeS2 anode material, the bimetal sulfide anode material SnS2/FeS2 /rGO has stronger conductivity and structural stability. When used for SIBs anode materials, it delivers a capacity of 763.4 mA h g-1 at the current density of 0.1 A g−1 after 100 cycles. In Chapter 4, in this work, we synthesized SnS2/C and FeS2/C composites which used crab shell as biomass carbon precursor. When used for sodium-ion batteries, SnS2/C and FeS2/C deliver a capacity of 535.4 and 479 mA h g-1 at the current density of 0.1A g-1, respectively. Final, the general conclusion is described. In this thesis, the as-prepared 4 kinds of materials exhibited good electrochemical performance in LIBs and SIBs. The strategies of combined SiOx/TMDS and biomass-based carbon providing a better solution for industrialization.
• DOI: 10.18997/00008670; https://doi.org/10.18997/00008670
• Format (IMT): application/pdf
• Source: sei_k_412.pdf （fulltext）; https://kyutech.repo.nii.ac.jp/record/7466/files/sei_k_412.pdf
• Access Restrictions: インターネット公開
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 九州工業大学 : キューテイカー

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