2023-02-182024-05-13https://scholars.lib.ntu.edu.tw/handle/123456789/654192隨著全球朝向淨零碳排的目標前進，台灣在再生能源領域也加速投資，電動及油電混合車的使用與日俱增，電池相關產業也逐漸在台灣生根。然而，台灣電池產業以組裝為主，原材料主要仰賴進口，對製造成本影響甚大。然而，退役的電池其實可視為都市礦藏；若能有效回收廢電池，除能減少電池廢棄物外，回收的金屬等材料可作為電池製造的原物料，進而可大幅減少台灣電池產業對進口材料的依賴。此外，依歐盟的新電池規定，再生材料需佔比電池重量的50%；因此，若台灣能推動與建立電池回收系統，將可提高台灣電池及相關產業的國際競爭力。而電池回收率的上升，可減少環境衝擊以及溫室氣體排放，在環保意識高漲的現今社會已不可不為。 Along with the worldwide pursuit of net-zero carbon emission goal, renewable energy related investment is increasing in Taiwan and electric and hybrid electric vehicles are gaining market shares. Battery related industries are growing in Taiwan; however, battery packaging is the primary business model of them and the cost is highly dependent upon imported battery materials. In fact, retired batteries are considered urban mines and effective battery recycle can not only reduce environmental impact but also relieve the reliance of material import by reusing the recycled materials. In addition, new rules in European Union demands over 50% of recycled materials used in battery fabrication. Establishing a local battery recycle system in Taiwan thus can increase the international competitiveness of Taiwan’s battery related industries. Besides, the increasing awareness of environmental protection is urging battery recycle implementation to reduce greenhouse gas (GHG) emissions. Presently, nickel metal hydride (NiMH) batteries are recycled either by pyrometallurgy or hydrometallurgy method. In this project, we aim to quantitively analyze the efficiency, energy consumption, and GHG emissions of these two methods. Reuse of the recycled materials from NiMH batteries will also be evaluated. There are four primary axes of this research project: (1) patent analysis and life cycle analysis of pyrometallurgy method; (2) patent analysis and life cycle analysis of hydrometallurgy method; (3) NiMH battery recycle derived GHG emission estimation; (4) GHG emission reduction estimation by reusing the recycled materials for new battery fabrication. Ultimately, we hope the results of this project can provide guidance and data for Taiwan’s recycle policy making and recycle efficiency evaluation.鎳氫電池;回收;火法冶金;濕法冶金;生命週期評估;溫室氣體;nickel metal hydride battery; recycle; pyrometallurgy; hydrometallurgy; life cycle analysis; green house gas