Şarj Edilebilir Nikel-Metal Hidrür (Ni-MH) Pillerinde Kullanılan Hidrojen Depolama Alaşımlarındaki SonGelişmeler
Hidrojen depolama alaşımları şarj edilebilir Ni-MH pillerinin pratik uygulamaları için son zamanların çok genişaraştırma konusunu oluşturmaktadır. Bu derleme çalışmasında şarj edilebilir Ni-MH pilleri için AB5-tip, AB2-tip,TiV esaslı, R-Mg-Ni esaslı ve Mg-Ni esaslı hidrojen depolama alaşımlarının son yıllardaki gelişmeleri detaylıolarak anlatılmıştır. Son yıllarda gerçekleşen gelişmelere bağlı olarak var olan problemler ve ilgili sonuçlarsistematik olarak değerlendirilmiştir. Hidrojen depolama alaşımlarının, alaşım kompozisyonları, kristal yapıları veelektrokimyasal özellikleri arasındaki bağlantı her bir alaşım çeşidi için tanımlanmış ve güç pilleri üzerinden analizedilmiştir. Gelişen elektrikli araçlarda kullanımları için Ni-MH pillerindeki zorluklar bu çalışmada tartışılmıştır.
Recent Developments of Hydrogen Storage Alloys Used in Nickel-Metal Hydride (Ni-MH) Rechargeable Batteries
Hydrogen storage alloys have been the subject of extensive research in recent years for practical applications of rechargeable Ni-MH batteries. In this review, the developments of AB5-type, AB2-type, TiV-based, R-Mg-Ni based and Mg-Ni based hydrogen storage alloys for rechargeable Ni-MH batteries have been explained in detail in the last few years. Depending on the developments in the last few years, existing problems and related results have been evaluated systematically. The relationship between alloying compositions, crystal structures and electrochemical properties for each alloy type are also defined and analyzed with the emphasis on power batteries. Challenges in Ni-MH batteries for use in developing electric vehicles have been discussed in this study.
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