首页> 外文期刊>Nanotechnology >Preparation and electrochemical performance of P5+-doped Li4Ti5O12 as anode material for lithium-ion batteries
【24h】

Preparation and electrochemical performance of P5+-doped Li4Ti5O12 as anode material for lithium-ion batteries

机译:P5 +掺杂Li4Ti5O12作为锂离子电池阳极材料的制备和电化学性能

获取原文
获取原文并翻译 | 示例
           

摘要

Li4Ti5-xPxO12 (x = 0, 0.1, 0.2, 0.3, 0.4, 0.5) as an anode material was synthesized using a sol-gel method with Ti(C4H9O)(4), Li2CO3, and NH4H2PO4, followed by a calcination treatment. The influences of P5+ doping on the crystal structure, phase composition, and morphology of Li4Ti5-xPxO12 were analyzed by x-ray diffraction and scanning electron microscopy. The electrochemical properties of Li4Ti5-xPxO12 were characterized using galvanostatic charge-discharge cycles, cyclic voltammetry, and alternating current impedance experiments. The results indicate that when x = 0.2, the Li4Ti4.8P0.2O12 sample exhibits the best initial discharge specific capacity of 132.1 mAh g(-1) at first cycle, and the discharge specific capacity remains at 128.3 mAh g(-1) after 500 cycles.
机译:使用具有Ti(C4H9O)(4),Li 2 CO 3和NH 4 H 2 O 3的溶胶 - 凝胶法合成作为阳极材料作为阳极材料的Li4Ti5-XPXO12(x = 0,0.1,0.2,0.2,0.3,0.3,0.5),然后用煅烧处理。 通过X射线衍射和扫描电子显微镜分析P5 +掺杂对Li4Ti5-XPXO12的晶体结构,相组合物和形态的影响。 使用Galvanostatic电荷 - 放电循环,循环伏安法和交流阻抗实验表征Li4Ti5-XPXO12的电化学性质。 结果表明,当X = 0.2时,Li4Ti4.8P0.2O12样品首先在第一次循环中表现出132.1mAhg(-1)的最佳初始排放特定容量,并且放电特定容量保持在128.3mahg(-1)之后 500个循环。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号