4.7 Article

Electrochemical performance of aluminum niobium oxide as anode for lithium-ion batteries

期刊

RARE METALS
卷 35, 期 3, 页码 256-261

出版社

NONFERROUS METALS SOC CHINA
DOI: 10.1007/s12598-016-0690-y

关键词

Aluminum niobium oxide; Electrochemical performance; Anode; Lithium-ion batteries

资金

  1. National Natural Science Foundation of China [51271036]

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AlNbO4, as lithium-ion batteries (LIBs) anode, has a high theoretical capacity of 291.5 mAh.g(-1). Here, AlNbO4 anode materials were synthesized through a simple solid-state method. The structure, morphology and electrochemical performances of AlNbO4 anode were systematically investigated. The results show that AlNbO4 is monoclinic with C2/m space group. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) characterizations reveal the AlNbO4 particles with the size of 100 nm(-2) mu m. As a lithium-ion batteries anode, AlNbO4 delivers a high reversible capacity and good rate capability. The discharge capacity is as high as 151.0 mAh. g(-1) after 50 charge and discharge cycles at 0.1C corresponding to capacity retention of 90.7 %. When the current density increases to 5.0C, AlNbO4 anode displays reversible discharge capacity of 73.6 mAh.g(-1) at the 50th cycle.

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