首页> 外文期刊>RSC Advances >PSA modified 3 D flower-like NiCo2O4 nanorod clusters as anode materials for lithium ion batteries
【24h】

PSA modified 3 D flower-like NiCo2O4 nanorod clusters as anode materials for lithium ion batteries

机译:PSA改性3 D花样Nico2O4纳米杆簇作为锂离子电池的阳极材料

获取原文
获取原文并翻译 | 示例
           

摘要

Novel 3-dimensional (3 D) flower-like NiCo2O4 (NCO) nanorod clusters are fabricated by a facile hydrothermal process using styrene-acrylonitrile copolymer (PSA) nanospheres as a complex agent. The structure and morphology of NCO are characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results show that the PSA modified NCO (PNCO) exhibits excellent electrochemical performance. Compared with pure NCO, the flower-like PNCO materials with enough free space as anodes in lithium ion batteries (LIBs) deliver an initial discharge capacity of 1519.1, 1447.3 and 1337.3 mA h g(-1) at the current densities of 500, 1000 and 2000 mA g(-1), as well as 1417.5, 819.0 and 719.5 mA h g(-1) after 100 cycles. Meanwhile, they display improved rate performance at elevated current rates, such as 1247.3, 1193.5 and 944.5 mA h g(-1) at current densities of 1000, 2000 and 4000 mA g(-1), respectively. They have great prospects for the application of anode materials for lithium-ion batteries.
机译:新颖的3维(3 d)花状NiCo2O4(NCO)纳米棒簇通过使用苯乙烯 - 丙烯腈共聚物(PSA)纳米球作为络合剂的简便水热法制造的。 NCO的结构和形态的特征在于通过X射线衍射(XRD),扫描电子显微镜(SEM)和透射电子显微镜(TEM)。结果表明改性NCO(PNCO)的PSA显示出优异的电化学性能。用纯NCO相比,花状PNCO材料具有足够的自由空间,如锂离子电池的阳极(LIBS)在500,1000中的电流密度提供1519.1,1447.3和1337.3毫安汞柱(-1)的初始放电容量和2000毫安克(-1),以及1417.5,819.0和719.5毫安汞柱(-1)100次循环后。同时,它们分别显示在1000,2000和4000毫安克电流密度(-1)以目前的速度升高改善率性能,如1247.3,1193.5和944.5毫安ħ克(-1)。他们对负极材料的锂离子电池的应用前景十分广阔。

著录项

  • 来源
    《RSC Advances》 |2015年第90期|共10页
  • 作者单位

    S China Normal Univ Sch Phys &

    Telecommun Engn Guangzhou 510006 Guangdong Peoples R China;

    S China Normal Univ Sch Phys &

    Telecommun Engn Guangzhou 510006 Guangdong Peoples R China;

    S China Normal Univ Sch Phys &

    Telecommun Engn Guangzhou 510006 Guangdong Peoples R China;

    S China Normal Univ Sch Phys &

    Telecommun Engn Guangzhou 510006 Guangdong Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 化学;
  • 关键词

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