Journal
NANO-MICRO LETTERS
Volume 9, Issue 3, Pages -Publisher
SHANGHAI JIAO TONG UNIV PRESS
DOI: 10.1007/s40820-017-0127-7
Keywords
NiFe2O4; Expanded graphite; Anode materials; Lithium-ion batteries
Funding
- National Basic Research Program of China [2014CB239702]
- National Natural Science Foundation of China [21371121, 21506126, 51502174]
- Shenzhen Science and Technology Research Foundation [JCYJ20150324141711645, J-CYJ20150324141711616, JCYJ20150626090504916]
- China Postdoctoral Science Foundation [2015 M582401, 2015 M57234]
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A NiFe2O4/expanded graphite (NiFe2O4/EG) nanocomposite was prepared via a simple and inexpensive synthesis method. Its lithium storage properties were studied with the goal of applying it as an anode in a lithium-ion battery. The obtained nanocomposite exhibited a good cycle performance, with a capacity of 601 mAh g(-1) at a current of 1 A g(-1) after 800 cycles. This good performance may be attributed to the enhanced electrical conductivity and layered structure of the EG. Its high mechanical strength could postpone the disintegration of the nanocomposite structure, efficiently accommodate volume changes in the NiFe2O4 based anodes, and alleviate aggregation of NiFe2O4 nanoparticles.
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