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  1. 学位論文
  2. 学位論文

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

https://doi.org/10.18997/00008670
https://doi.org/10.18997/00008670
ea4d8b2c-4a45-4950-a564-5926d620d387
名前 / ファイル ライセンス アクション
sei_k_412.pdf sei_k_412.pdf (5.1 MB)
Item type 学位論文 = Thesis or Dissertation(1)
公開日 2022-01-04
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 Nanostructured Anode Materials and Application to High Performance Lithium-ion Batteries and Sodium-ion Batteries
言語 en
タイトル
タイトル 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
言語 ja
言語
言語 eng
著者 Chen, Yun

× Chen, Yun

en Chen, Yun

Search repository
抄録
内容記述タイプ Abstract
内容記述 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.
目次
内容記述タイプ TableOfContents
内容記述 1. Introduction ||2 Equisetum arvense derived anode material for lithium-ion batteries||3 Metallic Sulfide SnS2/FeS2 Nanosheets as High-Performance Anode Materials for Sodium-Ion Batteries||4 Carb shell-derived SnS2/C and FeS2/C carbon as anode for high-performance Sodium ion batteries
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412号 学位授与年月日:令和3年9月24日
キーワード
主題Scheme Other
主題 Anode material
キーワード
主題Scheme Other
主題 Lithium-ion batteries
キーワード
主題Scheme Other
主題 Sodium-ion Batteries
キーワード
主題Scheme Other
主題 Stability
キーワード
主題Scheme Other
主題 Nanostructured
アドバイザー
馬, 廷麗
学位授与番号
学位授与番号 甲第412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 2021-09-24
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3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 10.18997/00008670
ID登録タイプ JaLC
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