• 文献标题:   Electrochemical and ex-situ analysis on manganese oxide/graphene hybrid anode for lithium rechargeable batteries
  • 文献类型:   Article
  • 作  者:   KIM H, KIM SW, HONG J, PARK YU, KANG K
  • 作者关键词:  
  • 出版物名称:   JOURNAL OF MATERIALS RESEARCH
  • ISSN:   0884-2914 EI 2044-5326
  • 通讯作者地址:   Seoul Natl Univ
  • 被引频次:   26
  • DOI:   10.1557/jmr.2011.301
  • 出版年:   2011

▎ 摘  要

A Mn3O4/graphene hybrid material is fabricated using a facile and simple in-situ reduction process and shown to be a promising anode for lithium rechargeable batteries. The hybrid material retains a high capacity with a good cycle life of up to 990 mAh g(-1) after 30 cycles. The excellent electrochemical performance is attributable to the unique nanostructure of the hybrid material. Highly crystalline Mn3O4 particles (20-30 nm) are uniformly dispersed on graphene whose high electronic conductivity and high surface area provide a conductive percolating network throughout the electrode in the hybrid material. The conductive graphene networks enhance an electron transfer in the electrode and promote the electrochemical activity of the crystalline Mn3O4.