One-step fabrication of two-dimensional hierarchical Mn2O3@graphene composite as high-performance anode materials for lithium ion batteries

• 作者: Zhou Zhou Chaoying Ding Wenchao Peng Yang Li Fengbao Zhang Xiaobin Fan
• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2021,（21）
• 页码范围: 13-19
• 页数: 7页
• 语种: 英文

摘要

Two-dimensional (2D) hierarchical Mn2O3@graphene composite is synthesized by a one-step solid-phase reaction.The nanosheets of Mn2O3 are vertically grown on few-layered graphene,constructing a unique 2D hierarchical structure.As an anode material for lithium-ion batteries (LIBs),this hierarchical composite displays excellent electrochemical performances,showing an extraordinary reversible discharge capacity of 2125.9 mA h g-1.Moreover,a record high reversible capacity of 1746.8 mA h g-1 is maintained after 100 cycles at a current density of 100 mA g-1,which retains 82.2 ％ of the initial capacity.Such an outstanding performance could be attributed to its novel structure and the synergistic effects between the Mn2O3 and graphene.