科技的進步帶給人們便利生活的同時，能源的需求與儲存議題也逐漸受到重視，不能否認，能源是帶動科技進步的重要推手，然而隨著地球的資源日漸短缺，能源不足的問題日趨嚴峻，加上近年來環保意識抬頭更注重於綠色能源，發展儲電系統便是構建分散能源並提昇離峰時段用電效率的最佳方法，對於間歇性電力來源而言，電池或許是理想的儲存媒介，因為電池充電速度快，能立即開啟或關閉，而且容易擴充，而其中鋰離子電池為現今最有效儲存能源的方式之一，與其他電池相比，鋰電池具有電容量大、安全性高、工作電壓適中、低環境汙染、高能量密度、可快速充放電且循環壽命長等優點，被認為是目前最有效率的能源儲存方式。

本研究主要專注於鋰離子電池陽極(負極)材料的開發，其中石墨陽極在應用上具有充放電周期長的優勢，且在長時間充放電時不會有枝晶鋰產生，是市面上最常使用的鋰電池陽極，然而其理論電容只有372〖 mAh g〗^(-1)，所以尋找替代的材料是重之重。其中矽是下一代鋰離子電池（LIB）最有希望的陽極材料，因為它具有4200〖 mAh g〗^(-1)的高理論電容值，然而在充放電期間的大體積變化造成粉末碎裂和低固有電導率妨礙了其電化學性能。因此本研究主要在矽材料上加以改善，使用熱化學氣相沉積法(Thermal Chemical Vapor Deposition, Thermal CVD)在奈米矽片上成長碳化矽及沉積導電碳當作緩衝層，再加上塗佈間苯二酚-甲醛樹酯當作最外層的保護層，以上述所說的兩道製程包覆之矽所製成的陽極，在全充全放下80次循環後，還有1099〖 mAh g〗^(-1)的電容量，而未處理的奈米矽片陽極只剩下50〖 mAh g〗^(-1)的電容量，證明此包覆方法可以幫助矽基陽極材料延長其壽命。

A thermal chemical vapor deposition (CVD) method is used to grow silicon carbide and deposit conductive carbon as a buffer layer on surfaces of the silicon flake, and coating resorcinol–formaldehyde (RF) resins is used as the outermost protective layer. By taking advantage of the high strength and toughness of silicon carbide (SiC), a SiC layer is introduced between the inner silicon and outer carbon layers to inhibit the formation of Li2SiF6. The Si-carbon composite as an anode exhibited the reversible capacity of 1099〖 mAh g〗^(-1) at 500〖 mA g〗^(-1) after 80 cycles.

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