The Development of Layered Inorganic Nanowires as High-Performance Lithium-Ion Battery Electrodes
碩士 === 國立清華大學 === 化學工程學系 === 102 === Germanium nanowires and copper nanowires were combined to manufacture germanium/copper nanowire fabrics with a layered inorganic nanowires structure. The fabrics are flexible and resilient. The lithium ion half cells made of the germanium/copper nanowire fabri...
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ndltd-TW-102NTHU50631172019-05-15T21:42:03Z http://ndltd.ncl.edu.tw/handle/fc466y The Development of Layered Inorganic Nanowires as High-Performance Lithium-Ion Battery Electrodes 以無機奈米線疊層結構做為高效能鋰離子電池電極之開發 Chang, Wei-Chung 張維中 碩士 國立清華大學 化學工程學系 102 Germanium nanowires and copper nanowires were combined to manufacture germanium/copper nanowire fabrics with a layered inorganic nanowires structure. The fabrics are flexible and resilient. The lithium ion half cells made of the germanium/copper nanowire fabric with an electrolyte composed of FEC/DEC have excellent cycle performance and stability. After 500 cycles at a rate of 1C, the cell exhibited a reversible capacity of 830 mAh/g. The germanium/copper nanowire fabrics also exhibited high rate capacity, having a reversible capacity of 350 mAh/g at a rate of 20 C. In addition, it can allow ultrafast discharge at 50 C when charged at 1C. By calculating the total weight of the electrodes (active materials + conductive agents + binder + current collector) and comparing with the relevant literature, we found that the weight capacities of germanium/copper nanowire fabric electrode were 2~7 times higher than other types of germanium or silicon electrode. The germanium/copper nanowire fabric electrodes have potential for some applications which require rapid cycling rates and can significantly reduce battery weight. Furthermore, We prepared a large area Ge/Cu nanowire fabric anode (5 cm *8 cm) to assemble full cells with commercial Li(NiCoMn)O2 cathode. The full cells were able to power a lot of LEDs. This work demonstrated that our development of layered inorganic nanowires structure make progress toward practical Li-ion battery applications. Tuan, Hsing-Yu 段興宇 2014 學位論文 ; thesis 91 zh-TW |
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碩士 === 國立清華大學 === 化學工程學系 === 102 === Germanium nanowires and copper nanowires were combined to manufacture germanium/copper nanowire fabrics with a layered inorganic nanowires structure. The fabrics are flexible and resilient. The lithium ion half cells made of the germanium/copper nanowire fabric with an electrolyte composed of FEC/DEC have excellent cycle performance and stability. After 500 cycles at a rate of 1C, the cell exhibited a reversible capacity of 830 mAh/g. The germanium/copper nanowire fabrics also exhibited high rate capacity, having a reversible capacity of 350 mAh/g at a rate of 20 C. In addition, it can allow ultrafast discharge at 50 C when charged at 1C. By calculating the total weight of the electrodes (active materials + conductive agents + binder + current collector) and comparing with the relevant literature, we found that the weight capacities of germanium/copper nanowire fabric electrode were 2~7 times higher than other types of germanium or silicon electrode. The germanium/copper nanowire fabric electrodes have potential for some applications which require rapid cycling rates and can significantly reduce battery weight. Furthermore, We prepared a large area Ge/Cu nanowire fabric anode (5 cm *8 cm) to assemble full cells with commercial Li(NiCoMn)O2 cathode. The full cells were able to power a lot of LEDs. This work demonstrated that our development of layered inorganic nanowires structure make progress toward practical Li-ion battery applications.
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author2 |
Tuan, Hsing-Yu |
author_facet |
Tuan, Hsing-Yu Chang, Wei-Chung 張維中 |
author |
Chang, Wei-Chung 張維中 |
spellingShingle |
Chang, Wei-Chung 張維中 The Development of Layered Inorganic Nanowires as High-Performance Lithium-Ion Battery Electrodes |
author_sort |
Chang, Wei-Chung |
title |
The Development of Layered Inorganic Nanowires as High-Performance Lithium-Ion Battery Electrodes |
title_short |
The Development of Layered Inorganic Nanowires as High-Performance Lithium-Ion Battery Electrodes |
title_full |
The Development of Layered Inorganic Nanowires as High-Performance Lithium-Ion Battery Electrodes |
title_fullStr |
The Development of Layered Inorganic Nanowires as High-Performance Lithium-Ion Battery Electrodes |
title_full_unstemmed |
The Development of Layered Inorganic Nanowires as High-Performance Lithium-Ion Battery Electrodes |
title_sort |
development of layered inorganic nanowires as high-performance lithium-ion battery electrodes |
publishDate |
2014 |
url |
http://ndltd.ncl.edu.tw/handle/fc466y |
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