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3D Hierarchical Microballs Constructed by Intertwined MnO@N‐doped Carbon Nanofibers towards Superior Lithium‐Storage Properties
Author(s) -
Li YiJing,
Fan ChaoYing,
Li HuanHuan,
Huang KeCheng,
Zhang JingPing,
Wu XingLong
Publication year - 2018
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201800999
Subject(s) - anode , materials science , lithium (medication) , electrochemistry , composite number , electrode , chemical engineering , carbon fibers , nanofiber , porosity , carbon nanofiber , ion , nanotechnology , composite material , chemistry , carbon nanotube , medicine , organic chemistry , engineering , endocrinology
MnO is a promising high‐capacity anode material for lithium‐ion batteries (LIBs), but pristine material suffers short cycle life and poor rate capability, thus hindering the practical application. In this work, a new type of porous MnO microballs stringed with N‐doped porous carbon (3DHB‐MnO@NC) with a well‐connected hierarchical three‐dimensional network structure was prepared by the facile self‐template method. The 3DHB‐MnO@NC electrode can effectively promote the ion/electron transfer and buffer the large volume change of electrode during the electrochemical reaction. As the anode for LIBs, the 3DHB‐MnO@NC possesses outstanding cycling performance (1247.7 mA h g −1 after 90 cycles at 200 mA g −1 ) and good rate capabilities (949.6 mA h g −1 after 450 cycles at 1000 mA g −1 ). The facile self‐template method of the prepared 3DHB‐MnO@NC composite paves a new way for practical applications of MnO in high performance LIBs.