...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Chemistry: A European journal >Hierarchical Porous Intercalation-Type V_2O_3 as High-Performance Anode Materials for Li-Ion Batteries
【24h】

Hierarchical Porous Intercalation-Type V_2O_3 as High-Performance Anode Materials for Li-Ion Batteries

机译：分层多孔嵌入式V_2O_3作为锂离子电池的高性能阳极材料

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

As intercalation-type anode materials for Li-ion batteries (LIBs), the commercially used graphite and Li_4Ti_5O_(12) exhibit good cycling and rate properties, but their theoretical specific capacities are too low to meet the ever-growing demands of high-energy applications such as electric vehicles. Therefore, the development of new intercalation-type anode materials with larger capacity is very desirable. Herein, we design and synthesize novel 3D hierarchical porous V_2O_3@C micro/nanostructures consisting of crumpled nanosheets, through self-reduction under annealing from the structurally similar VO_2 (B)@C precursors without the addition of any other reducing reagent or gas. Excitingly, it is found for the first time through ex situ XRD technology that V_2O_3 is a new, promising intercalation-type anode material for LIBs with a high capacity. V_2O_3@C micro/nanostructures can deliver a large capacity of 732 mAhg~(-1) without capacity loss at 100 mAg~(-1) even after 136 cycles, as well as exhibiting excellent cycling and rate performances. The application of V_2O_3 for Na-ion batteries (NIBs) is elaborated for the first time, and excitingly, it is found that V_2O_3@C micro/nanostructures may be promising anode materials for NIBs.
机译：作为锂离子电池（LIBS）的插层型阳极材料（Li-Ions），商业上使用的石墨和Li_4Ti_5O_（12）表现出良好的循环和速率性能，但它们的理论具体能力太低，无法满足高能量需求不断增长的需求电动车等应用。因此，非常理想地开发具有较大容量的新插入式阳极材料。在此，我们设计和合成由皱折的纳米片组成的新型3D层次多孔V_2O_3 @ C​​微/纳米结构，通过从结构相似的VO_2（b）的退火下的自我减少，而不加入任何其他还原剂或气体。令人兴奋的是，它是第一次通过EXITU XRD技术发现V_2O_3是一种具有高容量的LIBS的新的承诺型互联型阳极材料。 V_2O_3 @ C​​ micro /纳米结构可以在136次循环之后提供大容量的732mAhg〜（-1），而不会在100mm〜（-1）下容量损失，以及表现出优异的循环和速率性能。第一次阐述V_2O_3对Na离子电池（NIBS）的应用，并激发出来，发现V_2O_3 @ C​​ micro /纳米结构可能是用于尖端的阳极材料。

著录项

  • 来源
    《Chemistry: A European journal》 |2017年第31期|共7页
  • 作者

    Pengcheng Liu; Kongjun Zhu; Yuan Xu; Kan Bian; Jing Wang; Guo‘an Tai; Yanfeng Gao; Hongjie Luo; Li Lu; Jinsong Liu;

  • 作者单位

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Nanjing 210016 (P. R. China);

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Nanjing 210016 (P. R. China);

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Nanjing 210016 (P. R. China);

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Nanjing 210016 (P. R. China);

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Nanjing 210016 (P. R. China);

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Nanjing 210016 (P. R. China);

    School of Materials Science and Engineering Shanghai University 99 Shangda Shanghai 200444 (P. R. China);

    School of Materials Science and Engineering Shanghai University 99 Shangda Shanghai 200444 (P. R. China);

    Department of Mechanical Engineering National University of Singapore Singapore 117575 (Singapore);

    State Key Laboratory of Mechanics and Control of Mechanical Structures Nanjing University of Aeronautics and Astronautics Nanjing 210016 (P. R. China);

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

    electrochemistry; hierarchical micro/ nanostructures; intercalation-type anode material; lithium-ion batteries; reaction mechanisms; vanadium oxide;

    机译：电化学;分层微/纳米结构;插层型阳极材料;锂离子电池;反应机制;氧化钒;

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