本研究目標製備鋰離子電容器，尤其是其負極電化學儲存特性，對象為多壁奈米碳管鍍膜錫及硫化錫活性材料(Sn+SnS@CNT)，儲存特性量測在1.0 M LiPF6/DEC:EC:DMC= 1:1:1vol%有機電解液進行。
製備採用一維導電的多壁奈米碳管先進行低度表面酸化，再以高溫爐熱處理的方式，將錫及硫化錫鍍於多壁奈米碳管上形成奈米碳管/錫、硫化錫之複合體。表面酸化的目的在於幫助錫及硫化錫能均勻附著在多壁奈米碳管表面上，雖然表面酸化會使多壁奈米碳管導電率下降，但若不進行表面酸化，錫及硫化錫則無法附著在多壁奈米碳管上，而若過度酸化，則會嚴重破壞多壁奈米碳管的導電率，因此適當的表面酸化是必須的。
利用XRD分析得知價廉的低溫熱處理法能使錫及硫化錫鍍在多壁奈米碳管上，但未知其附著情形。利用場發射掃描式電子顯微鏡(FESEM)拍攝多壁奈米碳管、熱處理後的多壁奈米碳管以及預鋰化後的多壁奈米碳管，觀察到熱處理後，錫及硫化錫能均勻分布在奈米碳管周圍，形成似片狀的結構。
將兩種酸化溫度CNT(50˚C / 60˚C)搭配兩種高溫爐熱處理配方(C:S:Sn=1:1.2:5.4及1:1.8:5.29)的奈米碳管/錫、硫化錫負極材料，分別為Sample A-01(或02)、Sample B-01(或02)製備成電極片並進行預鋰化程序，此四個樣品在低電流密度 0.1 A g-1進行充放電前三圈的電量分別為1480 / 1690 / 1330 / 937 mAh g-1、844 / 750 / 845 / 653 mAh g-1以及716 / 554 / 645 / 548 mAh g-1，可以發現酸化溫較低的Sample A電量均高於酸化溫度較高的Sample B，顯示Sample A在儲能方面優於Sample B，防止Sample A在多次充放電後損耗太多硫導致電容量下降，因此加入微量高分子添加劑吡咯(Pyrrole)，同樣在低電流密度0.1 A g-1進行充放電，Sample A-01、02第三圈的電量從716 / 554 mAh g-1大幅提升至1400 / 1320 mAh g-1，即使提升電流密度至1 A g-1進行充放電五圈之平均電量仍有314 / 280 mAh g-1，而未加吡咯的Sample A-01則只有256 mAh g-1，但若將電流密度升至10 A g-1進行充放電五圈之平均電量，添加吡咯的Sample A-01、02電量只有88 / 83 mAh g-1，則未添加吡咯的Sample A-01有較高的電量為104 mAh g-1，將添加微量吡咯的Sample A-01、02，經過不同電流密度充放電再回到低電流密度0.1 A g-1，添加微量吡咯的Sample A-01相比於Sample A-02，前者的電量為807 mAh g-1高於後者的717 mAh g-1，顯示添加微量吡咯的Sample A-01有較好的可逆性。

In this study, we prepare a negative electrode of Sn+SnS@CNT composite as anode for lithium ion capacitor in LiPF6/DEC:EC:DMC electrolyte, and measure its electrochemical energy storage capability.
The CNT surface is essentially hydrophobic. Coating of tin and tin monosulfide cannot be done homogeneously over the entire CNT assembly without oxidizing the CNT surface. On the contrary, if the CNT surface is excessively oxidized, the electrical conductivity of CNT shall be degraded. Thus the surface of CNT has been lightly oxidized and coated with molten tin and sulfur. XRD of the composite electrode indicates the peaks of tin and tin monosulfide, in addition to the feature of CNT. SEM images show the mass of tin and tin monosulfide wraps up the one-dimensional nanotubes, and these materials become fragmented yet attached to CNT after lithiation.
The so-prepared CNT, oxidized at 50˚C or 60˚C and loaded with active materials of two C:S:Sn mass ratios (1:1.2:5.4 and 1:1.8:5.29), are denoted as A-01/02 and B-01/02. They exhibit capacity 1480/1690/ 1330/937 mAh g-1 in first charge cycle, 844/750/845/653 mAh g-1 in second cycle, and 716/554/645/548 mAh g-1 in third cycle at 0.1 A g-1. We conclude that the capacities of Sample A are higher than those of Sample B. To protect the electrode from losing too much sulfur, a small amount of pyrrole is added in electrolyte. With pyrrole, the electrode capacity at 0.1 A g-1 increases to 1400/1320 mAh g-1. If we raise the current density to 1.0 A g-1, the capacity of A-01 with pyrrole 314 mAh g-1, is still superior to that without pyrrole 256 mAh g-1. However, further raising the current to 10 A g-1, the capacity of A-01/02 with pyrrole decrease to 88/83 mAh g-1, which is less than A-01 without pyrrole, 104 mAh g-1. After the rate capacity measurements, A-01 with pyrrole has higher reversibility than A-02.

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