摘要
This is the first time that a novel anode material, spinel Li4Ti5O12 which is well known as a ＂zero-strain＂ anode material for lithium storage, has been introduced for sodium-ion battery. The Li4Ti5O12 shows an average Na storage voltage of about 1.0 V and a reversible capacity of about 145 mAh/g, thereby making it a promising anode for sodiumion battery. Ex-situ X-ray diffraction （XRD） is used to investigate the structure change in the Na insertion/deinsertion process. Based on this, a possible Na storage mechanism is proposed.
This is the first time that a novel anode material, spinel Li4Ti5O12 which is well known as a ＂zero-strain＂ anode material for lithium storage, has been introduced for sodium-ion battery. The Li4Ti5O12 shows an average Na storage voltage of about 1.0 V and a reversible capacity of about 145 mAh/g, thereby making it a promising anode for sodiumion battery. Ex-situ X-ray diffraction （XRD） is used to investigate the structure change in the Na insertion/deinsertion process. Based on this, a possible Na storage mechanism is proposed.
作者
赵亮
潘慧霖
胡勇胜
李泓
陈立泉
Zhao Liang;Pan Hui-Lin;Hu Yong-sheng;Li Hong;Chen Li-quan(Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China)
基金
supported by the National High Technology Research and Development Program of China (Grant No.2009AA033101)
the National Basic Research Program of China (Grant No.2010CB833102)
the National Natural Science Foundation of China (Grant No.50972164)
the Chinese Academy of Sciences Project (Grant No.KJCX2-YW-W26)
the Hundred-Talent Project of the Chinese Academy of Sciences
