• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced functional materials >N, O-Codoped Carbon Nanosheet Array Enabling Stable Lithium Metal Anode
【24h】

N, O-Codoped Carbon Nanosheet Array Enabling Stable Lithium Metal Anode

机译：N, O-Codoped Carbon Nanosheet Array Enabling Stable Lithium Metal Anode

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

摘要

Lithium metal anodes hold great potential for next-generation high-energy batteries. However, the low Coulombic efficiency (CE) and dendritic growth during lithium metal plating/stripping cause short cycle life and deter its practical application. Herein, nitrogen, oxygen-codoped vertical carbon nanosheet arrays are constructed on Cu foil (NOCA@Cu) as the efficient host to improve CE and suppress Li dendrites through polymer interfacial self-assembly and morphology-preserved pyrolysis. Benefitting from numerous vertical porous channels with abundant lithiophilic heteroatom dopants, 3D structured NOCA@Cu host can guide Li nucleation and growth in a controlled manner, leading to dendrite-free Li deposition with high CE and long life cycles in both carbonate electrolyte and ether electrolyte, surpassing horizontal carbon-coated Cu and pure Cu hosts. Finite element simulation further reveals the structural function of vertical carbon arrays as not only directing Li plating in the nanoarray-constructed confined space but also homogenizing the distribution of ion concentration and electrical field throughout the 3D electrode. To demonstrate the practical application of lithiated NOCA@Cu anode, it is coupled with a commercial LiFePO4 cathode, delivering high capacity and long-cycle stability with nearly 100% CE. The cost-effective, scalable, and efficient features render NOCA@Cu a promising Li host toward practical lithium metal batteries.

著录项

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