Journal
CHINESE SCIENCE BULLETIN
Volume 59, Issue 17, Pages 2017-2023Publisher
SCIENCE PRESS
DOI: 10.1007/s11434-014-0307-5
Keywords
Li-ion batteries (LIBs); Conversion reaction; High-performance anode; Fe3O4; Graphene
Categories
Funding
- Program of One Hundred Talents People of the Chinese Academy of Sciences
- National Basic Research Program of China [2012CB215500]
- Foundation for Innovative Research Groups of the National Natural Science Foundation of China [20921002]
- National Natural Science Foundation of China [21101147]
- Jilin Provincial Science and Technology Development Program [20100102, 20116008]
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Fe3O4 is an attractive conversion reaction-based anode material with high theoretical capacity (928 mA h g(-1)). However, the poor cycling and rate performance hinder its applications in Li-ion batteries. In this work, we report an effective strategy to synthesize three-dimensionally macroporous graphene-supported Fe3O4 hybrid composite. Benefiting from advantage of the special structure, the hybrid composite exhibits excellent Li+ storage performance, delivering a high reversible capacity of 980 mA h g(-1) at the current density of 4 A g(-1) even after 470 cycles and ultrahigh rate capability (293 mA h g(-1) even at current density of 20 A g(-1)).
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