Journal
CHEMELECTROCHEM
Volume 6, Issue 3, Pages 757-763Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201801374
Keywords
anode materials; binder free; hydrothermal synthesis; lithium ion batteries; MgFe2O4 nanosheets
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Funding
- National Nature Science Foundation of China [21471049]
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A superior 3D architecture Ni foam/MgFe2O4 integrative electrode was firstly designed and synthesized via a simple hydrothermal method and subsequent calcination as a binder-free anode for lithium-ion batteries (LIBs). MgFe2O4 nanoparticles with diameter of about 60 nm interconnect with each other to form porous nanosheets and anchor on the Ni foam (N-MFO). The 3D architectural design with superior conductivity and a strong skeleton structure not only provides fast kinetics, reduces the polarization and enhances the rate performance, but also buffers volume expansion and improves the cycle stability during the discharge/charge process. In addition, the interfacial lithium storage of the N-MFO electrode promotes high lithium-storage capacity, superior cycle stability and impressive rate capability. Even cycling at a current density of 5 Ag-1 for 1000 cycles, the capacity remains stable at about 780 mAh g(-1).
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