近年來商業用液態鋰離子電池廣泛被應用於電動車與3C領域中，然而其具有成本高和容易燃燒爆炸的安全隱患。因此，本研究聚焦全固態鋁離子電池，因鋁金屬作為負極具有高理論電容量、成本低廉和安全性高等優勢，是未來新興發展的儲能系統。本研究以鋁作為負極基礎材料，搭配矽酸鎂鹽和磷酸鐵固態電解質與石墨正極，組構成全固態電池進行探討。
本研究分為五個部份：1) 鋁負極改質、2) 矽酸鎂電解質優化、3) 石墨正極改質、4) 充放電機制與離子傳輸路徑及5) 全電池實際應用性探討。第一部份:對鋁金屬進行磷酸化處理，改善純鋁在充放電過程中穩定性，實驗結果顯示，以浸泡法製備之磷酸鋁負極可明顯提升電容量 (904 mAh/ g) 和循環壽命。此外，本研究同步對陽極氧化鋁基板進行鋁矽鎂鋅粉合金噴塗，並同樣進行磷酸改質，實驗結果顯示，此負極試片電容量有些許提升並具有較好容量保持率。再者，分析橫截面釐清顯微組織特性與相結構，確定表面磷化物為磷酸鋁 (AlPO4) 與建立負極優化機制。
第二部份：矽酸鎂電解質優化，單純以矽酸鎂粉末壓錠而成之電解質，在循環壽命表現不理想，因此導入PVA (Polyvinyl Alcohol) 進行輔助，並同步測試磷酸鐵電解質可行性，將矽酸鎂與其製成複合型固態電解質，實驗結果顯示，使用PVA輔助與複合型固態電解質皆使電池性能增益。
第三部份：石墨正極改質，對石墨正極進行磷酸鈉改質，結果顯示此改質後試片能藉由擴展層間距同時，提升電池電容量與循環壽命。
第四部份：充放電機制與離子傳輸路徑，透過EDS檢測充放電過後之試片表面，確認在電池內部移動之離子為鋁、鋅和鈉離子。Al/ Ingot-FMN/ GFN組合為電容器類型，離子在正負極以吸附與脫出的方式進行移動，無氧化還原現象發生，電容量保持率佳；S-ASMZP/ PM/ GFN組合為傳統二次電池類型，離子在電池內部移動時會與正負極進行氧化還原反應，導致電容量下降較快，但整體下降趨勢平緩且穩定，循環壽命良好。
最後，第五部份將以上兩組電池組立全電池並探討應用性，確認在不同使用場景下，本研究所組構之全電池最適宜工作溫度為25 °C，以馬達風扇測試評估工業化可行性，確認全電池具有潛力，以外部電源6 V充電3分鐘，可轉動風扇6分鐘10秒，相關成果可供儲能工業參考應用。

Aluminum (Al) is an attractive anode material due to its high abundance and favorable electrochemical performance. To address the inherent limitations of pure Al, this study modified Al-based anodes via phosphoric acid immersion and plasma spraying of Al-Si-Mg alloy powder onto anodized substrates. The cathode utilized a graphite foil (GFN) treated with saturated sodium phosphate solution. These components were integrated with a magnesium silicate-based solid-state electrolyte, further modified with polyvinyl alcohol (PVA) and iron phosphate, to assemble an all-solid-state Al-carbon secondary battery. TEM analysis of the acid-immersed Al substrate revealed a dual-layer aluminum phosphate (AlPO4) structure: a polycrystalline top layer that enhanced maximum capacity, and a single-crystalline bottom layer that extended cycle life, this anode achieved a maximum capacity of 901mAh/ g. For the plasma-sprayed electrode, EPMA confirmed that particle porosity promoted uniform phosphate formation. When paired with a magnesium silicate/PVA slurry electrolyte, it delivered a capacity of 250 mAh/ g and 600 cycles. Furthermore, substituting the magnesium silicate electrolyte with a ternary composite electrolyte (magnesium silicate/PVA/iron phosphate) elevated the maximum capacity to 1000 mAh/ g over 300 cycles. Temperature evaluations indicated that while the pure Al with ternary electrolyte combination excelled at room temperature, its performance degraded under temperature extremes. Conversely, the plasma-sprayed electrode with the slurry electrolyte demonstrated robust tolerance to high and low temperatures, with PVA effectively buffering capacity degradation. Finally, 5 cm times 2.5 cm pouch-type cells were fabricated; after a 3-minute charge at 6 V, they powered a motor fan for approximately 6 minutes, demonstrating substantial potential for practical and commercial applications.

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