基於高能量密度以及沒有記憶效應的優點，離子電池成為現今二次電池中應用最廣泛的儲能系統，其中又以鋰離子電池佔離子電池的大宗，然而鋰礦的日益稀少、以及會產生鋰枝晶的問題，都使得新型態二次離子電池的研發迫在眉睫。本研究選用鎵作為正極基底材料，具有較高循環穩定性，鎵離子半徑小的特點也使其成為具潛力的離子傳遞選項，後續加入錫做為添加材料，提升整體克電容量表現，並以製程快速的浸鍍法製備電極，改善目前商用泥漿塗佈法過於耗時之缺點。此外，傳統的液態電解液存在爆炸的風險，本研究導入固態電解質，期望能解決安全上的疑慮，進一步將錫箔、純鎵以及石墨作為鎵錫浸鍍正極的負極搭配選項，探討此三種材料作為鎵電池負極材料的適切性。接著，針對上述三者中循環充放電表現最佳者，組構成全固態鎵電池系統，探討對於不同溫度與不同放電電流之應用性，並藉此釐清全電池電化學反應機制。
實驗結果顯示，錫的添加能提供離子額外的氧化還原電位，提升鎵基正極材料克電容量表現，且隨著錫比例的增加，整體電池電容量持續提升，基於後續工業應用考量，將Ga-30Sn (H)作為最終正極組成。三種搭配負極當中，錫擁有最高電容量表現，然而因體積膨脹效應嚴重而迅速衰退，純鎵電極循環表現優良卻受限於理論克電容的瓶頸，使面電容表現較低，綜合考量循環壽命以及電容量表現，選擇石墨作為最終負極材料。鎵錫/石墨全固態電池在25℃和55℃之下仍可維持穩定，在85℃時，電池由於固態電解質結構崩解以及層間水逸散呈現衰退情況；在不同電流的放電參數下，由二次離子質譜儀結果可得知過高的放電速率會使離子堆積於電極表面而產生極化作用，提高不可逆電容量損失。最終，本研究成功製備出兼具良好循環表現以及高安全性的鎵錫/石墨全固態電池，並解析其充放電機制，可供儲能工業參考。

Based on the advantages of high energy density and no memory effect, lithium ion batteries have become the most widely used type of secondary batteries today. However, lithium mines are becoming scarcer and lithium dendrites are a big problem, too. In this study, gallium was selected as the base material of the positive electrode, which has high cycle stability. The small radius of gallium ion also makes it a potential ion transfer option. Take tin as an additional material to improve the overall capacity performance. The electrode is prepared by dipping. In addition, the traditional liquid electrolyte has the risk of explosion. In this study, a solid electrolyte is introduced, which is expected to solve safety concerns. Further, tin foil, pure gallium and graphite are used as negative electrode matching options. Then, for the best performance among three negative electrodes, an all-solid-state gallium battery system was built to discuss the applicability to different temperatures and different discharge currents, and to clarify the electrochemical reaction mechanism of the battery.
It is showed that the addition of tin can provide additional redox potential of ions to improve the performance of capacity. With the increase in the proportion of tin, the overall battery capacity continues to increase. Finally, based on the consideration of subsequent industrial applications, Ga-30Sn (H) as the final positive electrode composition. Among the three types of negative electrodes, consideration both of cycle life and capacitance performance, select graphite as the final anode material. Gallium-tin / graphite all-solid-state batteries can remain stable below 25 ° C and 55 ° C. At 85 ° C, the battery exhibits degradation due to the disintegration of the solid electrolyte structure and the water dissipation between the layers. It can be known that an excessively high discharge rate will cause ions to accumulate on the electrode surface and cause polarization, thereby increasing irreversible capacitance loss. In the end, this study successfully prepared a gallium tin / graphite solid-state battery with good cycle performance and high safety, and analyzed its charge and discharge mechanism.

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