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Facile Synthesis of Porous MnO Microspheres for High‐Performance Lithium‐Ion Batteries
Author(s) -
Li Xiuwan,
Shang Xiaonan,
Li Dan,
Yue Hongwei,
Wang Suiyan,
Qiao Li,
He Deyan
Publication year - 2014
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201400010
Subject(s) - anode , materials science , electrolyte , chemical engineering , lithium (medication) , porosity , nanoparticle , ion , microsphere , manganese , specific surface area , battery (electricity) , nanotechnology , electrode , chemistry , composite material , metallurgy , catalysis , organic chemistry , medicine , engineering , endocrinology , power (physics) , physics , quantum mechanics
Manganese oxide is a highly promising anode material of lithium‐ion batteries (LIBs) for its low insertion voltage and high reversible capacity. Porous MnO microspheres are prepared by a facile method in this work. As an anode material of LIB, it can deliver a high reversible capacity up to 1234.2 mA h g −1 after 300 cycles at 0.2 C, and a capacity of 690.0 mA h g −1 in the 500th cycle at 2 C. The capacity increase with cycling can be attributed to the growth of reversible polymer/gel‐like film, and the better cycling stability and the superior rate performance can be attributed to the featured structure of the microspheres composed of nanoparticles with a short transport path for lithium ions, a large specific surface, and material/electrolyte contact area. The results suggest that the porous MnO microspheres can function as a promising anode material for high‐performance LIBs.