...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Synthesis of SnO2/Sn hybrid hollow spheres as high performance anode materials for lithium ion battery
【24h】

Synthesis of SnO2/Sn hybrid hollow spheres as high performance anode materials for lithium ion battery

机译：SnO2 / Sn混合空心球作为锂离子电池高性能负极材料的合成

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

The hollow SnO2 spheres were synthesized by using carbon spheres as hard templates, and then carboncoated SnO2/Sn hybrid hollow spheres can be obtained through annealing process after carbon coating. The as-prepared hybrid spheres are well dispersed and coated with a uniform carbon layer. The carboncoated SnO2/Sn hybrid hollow spheres electrode exhibits high initial Coulombic efficiency (82.3%), high reversible capacity and good cycling stability (the initial charge and discharge capacity of 878.7 and 1061.6 mA h/g was achieved and the discharge capacities maintained 401 mA h/g after 50 cycles at 0.1 C) and good rate performance (1156.8 mA h/g at 0.1 C, 752.2 mA h/g at 0.2 C, 481.4 mA h/g at 0.5 C, 289.5 mA h/g at 1 C, and 120.6 mA h/g at 2 C, and more importantly, when the current density finally backs to 0.1 C, a capacity of 811.6 mA h/g can be restored) for anode materials in lithium ion batteries due to the hierarchical porous structure, carbon coating and the presence of Sn. (C) 2016 Elsevier B.V. All rights reserved.
机译：以碳球为硬模板，合成了空心SnO2球，然后通过碳包覆后的退火工艺得到了碳包覆的SnO2 / Sn杂化空心球。所制备的混合球很好地分散并涂有均匀的碳层。碳包覆的SnO2 / Sn混合空心球电极显示出高的库仑初始效率（82.3％），高的可逆容量和良好的循环稳定性（实现了878.7和1061.6 mA h / g的初始充放电容量，并且放电容量保持401 mA在0.1 C下经过50个循环后的h / g）和良好的速率性能（0.1 C下为1156.8 mA h / g，0.2 C下为752.2 mA h / g，0.5 C下为481.4 mA h / g，1 C下为289.5 mA h / g ，以及在2 C时为120.6 mA h / g，更重要的是，当电流密度最终回到0.1 C时，由于锂离子电池中的分层多孔结构，锂离子电池负极材料的容量可以恢复到811.6 mA h / g。 ，碳涂层和锡的存在。 （C）2016 Elsevier B.V.保留所有权利。

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