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研究生:羅嫈妮
研究生(外文):Ying-Ni Lo
論文名稱:導電碳黑應用於鋰離子電池正極材料之研究
論文名稱(外文):The Study Of Conductive Carbon Black Used In The Cathode Of Lithium-ion Battery
指導教授:林寬泓林寬泓引用關係
指導教授(外文):Kuan-Hong Lin
口試委員:黃仁清蔡有藤
口試委員(外文):Jen-Ching HuangYu-Teng Tsai
口試日期:2012-07-12
學位類別:碩士
校院名稱:東南科技大學
系所名稱:機械工程研究所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:2012
畢業學年度:100
語文別:中文
論文頁數:87
中文關鍵詞:磷酸鋰鐵(LiFePO4)、導電碳黑、正極材料、電容量、電池循環壽命
外文關鍵詞:lithium iron phosphate, conductive carbon black, cathode material, electric capacity, the battery cycle life
相關次數:
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  • 收藏至我的研究室書目清單書目收藏:1
磷酸鐵鋰(LiFePO4)是鋰離子二次電池的正極材料,為了使磷酸鋰鐵的電容量能接近理論值和增加電池循環壽命,本研究在磷酸鋰鐵中分別加入四種粒徑不同的導電碳黑,製成極版後組裝成電池,進行電池性能測試,以增加電容量和電池循環壽命。本研究先以X光繞射儀分析LiFePO4和導電碳黑粉末的晶體結構、晶格常數,並以場發射掃描式電子顯微鏡觀察LiFePO4和導電碳黑粉體的外形,再使用比表面積分析儀分析粉體的比表面積。接著將導電碳黑加入磷酸鋰鐵中並製成極版,以X光繞射儀分析極版中LiFePO4和導電碳黑的晶體結構,以及使用場發射掃描式電子顯微鏡觀察LiFePO4顆粒與導電碳黑的分散情形和測試導電度。最後進行電池性能測試,包含定電流循環充放電測試和循環壽命測試。結果顯示比表面積大和導電性能好的導電碳黑添加到磷酸鋰鐵中能使電池性能較佳,能增加電池的電容量和電池循環壽命。
The lithium iron phosphate (LiFePO4) was the cathode materials of lithium ion secondary battery. In order to make the electrical capacity of lithium iron phosphate close to the theoretical value, and increase the battery cycle life. This study added four kinds of different particle size conductive black carbon into LiFePO4, to form a electrode plates and assembled into a battery for increase the capacitance and battery cycle life.
The crystal structure and lattice constant of LiFePO4 and conductive carbon black powder was proceed by the X-ray diffraction analysis. The field mission scanning electron microscope was used for observe the shape of LiFePO4 and conductive carbon black powder. The specific surface area of the carbon black was analysis by a specific surface area analyzer.
The battery performance test, including the constant current charge-discharge test and the cycle life test was performed. Experiment results show the carbon black with large surface area and better conductivity added into LiFePO4 increased the performance of lithium iron phosphate, extend the capacity and battery cycle life.

中文摘要 i
英文摘要 ii
誌謝 iii
目錄 iv
圖目錄 vi
表目錄 ix
第一章 緒論1
1.1前言1
1.2 研究目的與方法3
第二章 文獻回顧4
2.1 鋰電池介紹4
2.1.1 鋰離子二次電池6
2.1.2 鋰高分子電池7
2.2 鋰離子二次電池的工作原理7
2.3 正極材料9
2.4 磷酸鋰鐵(LITHIUM IRON PHOSPHATE,LIFEPO4)12
2.5 導電劑17
2.5.1 導電石墨20
2.5.2 導電碳黑23
2.6 導電碳黑製程28
2.7 隔離膜30
2.8 電解液31
第三章 實驗方法34
3.1 實驗流程34
3.2 實驗儀器與材料34
3.3 分析項目35
3.3.1 X光繞射分析35
3.3.2 掃描電子顯微鏡分析37
3.3.3 比表面積測試38
3.3.4 密度40
3.4 磷酸鋰鐵極版製作42
3.4.1 製作黏結劑42
3.4.2 極版製作43
3.5 組裝電池44
3.6 電池性能測試46
3.6.1 定電流循環充放電測試 (Constant current charge-discharge cycle test)46
3.6.2 循環壽命測試 (Cycle Life)46
3.7 導電度46
第四章 實驗結果與討論47
4.1 分析項目47
4.1.1 X光繞射儀分析47
4.1.2 掃描電子顯微鏡分析52
4.1.3 比表面積結果55
4.1.4 密度( Density)55
4.2 極版試片分析56
4.2.1 極版X光繞射儀分析56
4.2.2 掃描電子顯微鏡分析59
4.3 電池性能測試62
4.3.1 定電流循環充放電測試 (Constant current charge-discharge cycle test)62
4.3.2 循環壽命測試 ( Cycle Life )76
第五章 結果與討論82
參考文獻83
簡歷87

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