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Manganese Cobalt Oxide (MnCo 2 O 4 ) Hollow Spheres as High Capacity Anode Materials for Lithium‐Ion Batteries
Author(s) -
Jin Rencheng,
Ma Yuqian,
Sun Yexian,
Li Honghao,
Wang Qingyao,
Chen Gang
Publication year - 2017
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201600275
Subject(s) - anode , materials science , calcination , cobalt , manganese , lithium (medication) , mesoporous material , cobalt oxide , current density , electrochemistry , oxide , chemical engineering , ternary operation , hydrothermal circulation , inorganic chemistry , nanotechnology , electrode , metallurgy , catalysis , chemistry , medicine , biochemistry , physics , quantum mechanics , computer science , engineering , programming language , endocrinology
Ternary metal oxides are considered as promising anode materials for lithium‐ion batteries (LIBs), because they can circumvent the shortcomings of single‐component oxides. Herein, a facile hydrothermal route combined with calcination is used to fabricate manganese cobalt oxide (MnCo 2 O 4 ) hollow spheres comprised of many mesoporous nanosheets. When used as anode material, the MnCo 2 O 4 hollow spheres display excellent electrochemical properties. A specific capacity of 1023 mAh g −1 can be achieved after 200 cycles at a current density of 200 mA g −1 . Even at a high current density of 5000 mA g −1 , a reversible discharge capacity as high as 755 mAh g −1 can be achieved.
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