• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Electrochemical Science >The Electrochemical Performance of Ferrosilicon Master Alloy as Anode Material for Lithium-Ion Batteries
【24h】

The Electrochemical Performance of Ferrosilicon Master Alloy as Anode Material for Lithium-Ion Batteries

机译：硅铁中间合金作为锂离子电池负极材料的电化学性能

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

摘要

Alloy electrode has greatly improved the low Li + /electron conductivity and relieved the huge volumeexpansion of Si via using elastic inactive matrix to accommodate the active component. Here we chooseferrosilicon master alloy (FS) used widely in the metallurgical industry as possible negative electrodematerials with Si as active center and highly conductive FeSi phase as elastic matrix. The carbon coatingferrosilicon (FSC) anode exhibits a good cycle performance of 430 mAh g ?1 after 100 cycles and a goodrate performance of 400 mAh g ?1 at a current density of 1000 mA g ?1 . To confirm the charge/dischargereaction mechanism, XRD was applied to detect the phase changes of the anode during the first threereaction processes. It can be seen from the results that the amorphous carbon layer and FeSi phase canact as a buffer layer to relax the stress of Si and improve the electrical conductivity among Si particlesduring cycling.
机译：合金电极通过使用弹性非活性基体来容纳活性成分，大大改善了低Li + /电子电导率，并缓解了Si的巨大体积膨胀。在这里，我们选择在冶金工业中广泛使用的硅铁中间合金（FS）作为可能的负极材料，以Si为活性中心，并以高导电的FeSi相为弹性基体。碳涂层硅铁（FSC）阳极在100次循环后表现出430 mAh g -1的良好循环性能，在1000 mA g -1的电流密度下具有400 mAh g -1的良好速率性能。为了确认充电/放电反应机理，在前三个反应过程中使用XRD检测阳极的相变。从结果可以看出，非晶碳层和FeSi相可以充当缓冲层以缓解Si的应力并在循环期间改善Si颗粒之间的导电性。

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