本研究可概略分為兩大部分，其一為批次生產奈米碳管/奈米碳纖的之製程研究;其二為奈米碳管/奈米碳纖用於在鋰離子二次電池陽極材料之性質研究。
在第一個部分中，我們發現與氬氣相較，在氫氣氣氛下可生成出較高品質之奈米碳管，故本實驗均以氫氣為反應氣氛。研究發現，不同的前驅物會因為本身的鍵結結構、碳氫原子比以及蒸汽壓的大小造成不同的碳管形貌。至於反應壓力及溫度的提高都會改變碳管的徑向成長速率。另外，從動力學的角度著眼，輔以碰撞理論及相圖等資料，本研究闡明奈米碳管及奈米碳纖在動力學上的確是藉由不同之機制所生成。

兼具高石墨化程度以及高比表面積是奈米碳管的特性。因此，本研究探討自製的奈米碳管是否同時具有石墨的高可逆性以及硬碳的高電容量，因而在第二部分中，藉由多種奈米碳管/奈米碳纖陽極材料的塗布，研究其充放電特性以及在不同充放電速率下的比較，以瞭解鋰離子在奈米碳管中的吸藏行為。

This thesis involves two primary subjects, the first subject is to investigate the mass-production of CNTs/CNFs in laboratory scale. The other subject is to study the electrochemical properties of the as-synthesized CNTs/CNTs for the application in secondary lithium-ion
battery.

In the first subject, it is found that hydrogen shows better performance than argon in the CVD process for synthesizing CNTs. Thus, all the experiments in the work proceeded in hydrogen atmosphere. Different precursors might cause morphological variation due to difference in C-C bonding, H/C ratio, and precursor vapor pressure. Besides, both reaction pressure and temperature changed the radial growing rate. Furthermore, this study clarified that the growth of CNTs and CNFs followed different mechanisms by referring collision theory

and phase diagram.

The main features of CNTs contain highly-perfect graphitization structure and high specific surface area. Thus, it is expected the CNT anode performed high reversibility as graphite anode and high capacity as hard carbon anode. In the second parts of the study, the electrochemical properties of different CNT/CNF anodes were measured, and the

intercalation mechanisms were discussed.

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