• 主题
高级搜索  >
历史搜索 清空历史
首页> 中文期刊> 《能源与环境材料(英文)》 >Mo_(3)Nb_(14)O_(44): A New Li^(+) Container for High-Performance Electrochemical Energy Storage

Mo_(3)Nb_(14)O_(44): A New Li^(+) Container for High-Performance Electrochemical Energy Storage

         
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Intercalating Nb-based oxides are promising anode compounds for lithiumion batteries since they have both good safety and large capacities.However,the research in this field is still limited.Here,Mo_(3)Nb_(14)O_(44)with a large theoretical capacity of 398 mAh g^(–1)(Mo^(64)←→Mo^(4+)and Nb^(5+)←→Nb^(3+))is exploited as a new Nb-based oxide anode compound,and Mo_(3)Nb_(14)O_(44)micron-sized particles(Mo_(3)Nb_(14)O_(44)-M)and Mo3Nb14O44 nanowires(Mo_(3)Nb_(14)O_(44)-N)are demonstrated.Mo3Nb14O44 owns a tetragonal shear ReO_(3)crystal structure(high-symmetric 14 space group)constructed by 4×4×∞(Mo,Nb)O_(6)octahedron blocks linked by Mo O4 tetrahedra,forming an A–B–A layered structure with a large interlayer spacing.This interesting structure allows fast Li+storage within the interlayers and significant intercalation-pseudocapacitive behavior,leading to the high rate performance of Mo_(3)Nb_(14)O_(44)-M/Mo_(3)Nb_(14)O_(44)-N with a large 10 C versus 0.1 C capacity retention percentage of 38.1/54.2%.Mo_(3)Nb_(14)O_(44)-M/Mo_(3)Nb_(14)O_(44)-N further exhibits a safe operating potential of 1.72/1.68 V,large reversible capacity of 323/321 m Ah g^(–1)at 0.1 C,high initial coulombic efficiency of 92.2/90.0%,and good cycling stability with 71.8/75.8%capacity retention after 1000 cycles at10 C.Additionally,a Li Mn_(2)O_(4)/Mo_(3)Nb_(14)O_(44)-N full cell also performs well.Therefore,Mo_(3)Nb_(14)O_(44)holds great promise as a fast-charging,safe,largecapacity,high-efficient,and long-life Li^(+)anode container.

著录项

  • 来源
    《能源与环境材料(英文)》 |2021年第1期|P.65-71|共7页
  • 作者

    Renjie Li; Guisheng Liang; Xiangzhen Zhu; Qingfeng Fu; Yongjun Chen; Lijie Luo; Chunfu Lin;

  • 作者单位

    Institute of Materials for Energy and Environment School of Materials Science and Engineering Qingdao University Qingdao 266071 ChinaSchool of Materials Science and Engineering Hainan University Haikou 570228 ChinaSongshan Lake Materials Laboratory Dongguan 523808 China;

    School of Materials Science and Engineering Hainan University Haikou 570228 China;

    School of Materials Science and Engineering Hainan University Haikou 570228 China;

    School of Materials Science and Engineering Hainan University Haikou 570228 China;

    School of Materials Science and Engineering Hainan University Haikou 570228 China;

    School of Materials Science and Engineering Hainan University Haikou 570228 China;

    Institute of Materials for Energy and Environment School of Materials Science and Engineering Qingdao University Qingdao 266071 China;

  • 原文格式 PDF
  • 正文语种 chi
  • 中图分类 蓄电池;
  • 关键词

    anode; in situ XRD; Li^(+)storage; Mo3Nb14O44; shear ReO3 crystal structure;

相似文献

  • 中文文献
  • 外文文献
  • 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