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研究论文

有序介孔磷酸钛锂离子电池正极材料制备及电化学性能

  • 王琼 ,
  • Adel Attia ,
  • 施志聪
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  • 厦门大学化学化工学院固体表面物理化学国家重点实验室,厦门大学化学化工学院固体表面物理化学国家重点实验室,厦门大学化学化工学院固体表面物理化学国家重点实验室,厦门大学化学化工学院固体表面物理化学国家重点实验室 福建厦门361005,福建厦门361005,福建厦门361005,福建厦门361005

收稿日期: 2008-02-28

  修回日期: 2008-02-28

  网络出版日期: 2008-02-28

Preparation and Electrochemical Performance of Ordered Mesoporous Titanium Phosphate as Cathode Material for Li-ion Battery

  • WANG Qiong ,
  • Adel Attia ,
  • SHI Zhi-cong
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  • (State Key Laboratory for Physical Chemistry of Solid Surfaces,Institute of Chemistry andChemical Engineering,Xiamen University,Xiamen 361005,Fujian,China

Received date: 2008-02-28

  Revised date: 2008-02-28

  Online published: 2008-02-28

摘要

选用合适模板剂由溶胶凝胶法合成高度有序介孔结构的磷酸钛正极材料.研究煅烧温度对材料孔结构及材料的电化学性能的影响,合成样品的结构形貌和比表面分别用XRD、BET、TEM及元素分析仪表征.充放电测试结果表明,该介孔结构正极材料表现出优越的电化学性能,以150 mA/g充放电,首次放电容量高达94 mAh/g,而不含模板剂无孔结构的材料放电容量仅37 mAh/g.

本文引用格式

王琼 , Adel Attia , 施志聪 . 有序介孔磷酸钛锂离子电池正极材料制备及电化学性能[J]. 电化学, 2008 , 14(1) : 30 -33 . DOI: 10.61558/2993-074X.1858

Abstract

Ordered porous titanium phosphate materials were prepared by using the surfactant template combined with the sol-gel method.The samples were characterized by small angle X-ray diffraction(SA-XRD) method,N2 adsorption/desorption techniques,high resolution transmission electron microscopy(HRTEM) and element analysis.It is found that the calcination temperature is a big influence on the porous structure,and electrochemical performance of the titanium phosphate materials.,and the mesoporous titanium phosphate showed good performance in the electrochemical test,the first discharge capacity is 94 mAh/g at the current density of 150 mA/g.On the other hand,the no porous material with a low capacity of 37 mAh/g under the same charge-discharge condition.

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