Nb-Based Oxides as Anode Materials for Lithium Ion Batteries
Progress in Chemistry ›› 2015, Vol. 27 ›› Issue (2/3) : 297 -309.
Li4Ti5O12 as anode materials for lithium ion batteries has been widely studied because of its excellent rate performance and cycle performance, but the low specific capacity (175 mAh/g) limits its application in the future. Compared with Li4Ti5O12, niobium based oxides have similar lithium ion insertion/extraction potential and higher specific capacity. In addition,they also have good rate performance and promising to be new anode materials with high power performance, that have got increasing researchers' attention in recent years. In this paper,the crystal structure, electrochemical performance and lithium ion insertion/extraction mechanism of various niobium based oxides materials (Nb2O5, TiNb2O7, LiNb3O8, etc.) are reviewed. The effects on lithium ion transfer and storage performance originate from component, particle morphology and preparation technology are discussed. Meanwhile, the influencing mechanism is also summarized. In addition, the generality in electrochemical lithium insertion and extraction behavior of niobium based oxides materials, the differences and similarities compared with Li4Ti5O12 are summarized the tendency and prospect of them as anode materials for high power lithium ion batteries in the end are also discussed.
Contents
1 Introduction
2 Research status of Nb-based oxides anode materials for lithium ion battery
2.1 Niobium oxides
2.2 Titanium niobium oxides
2.3 Lithium niobium oxides
2.4 Potassium niobium oxides
2.5 Vanadium niobium oxides
2.6 Other niobium based oxides
3 Understand of intercalation and deintercalation of lithium ion for niobium based oxide
4 Summary
lithium ion batteries
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