Hydrothermal Fabrication of MnCO3@rGO Composite as an Anode Material for High-Performance Lithium Ion Batteries

被引:112
作者
Zhou, Liankai [1 ,2 ]
Kong, Xianghua [1 ]
Gao, Min [3 ]
Lian, Fang [3 ]
Li, Baojun [2 ,4 ]
Zhou, Zhongfu [5 ]
Cao, Huaqiang [2 ]
机构
[1] Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Beijing 100083, Peoples R China
[2] Tsinghua Univ, Dept Chem, Beijing 100084, Peoples R China
[3] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China
[4] Zhengzhou Univ, Coll Chem & Mol Engn, Zhengzhou 450001, Peoples R China
[5] Shanghai Univ, Shanghai Key Lab Modern Met & Mat Proc, Shanghai 200072, Peoples R China
基金
中国国家自然科学基金;
关键词
REDUCED GRAPHENE OXIDE; MANGANESE CARBONATE; HIGH-CAPACITY; SHEETS; NANOCOMPOSITES; ROUTE; NANOSHEETS; STORAGE; HYBRID;
D O I
10.1021/ic501321z
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The layer structure of graphene or reduced graphene oxide (rGO) opens an avenue for the development of advanced functional materials. In this paper, a MnCO3@rGO composite (MGC) was fabricated by anchoring MnCO3 nano-particles (NPs) on rGO sheets in the hydrothermal reduction process of graphene oxide by using NaBH4. MnCO3 NPs with an average diameter of 8-20 nm were anchored onto the surface of rGO. The layer structure of rGO was maintained in MGC. The MGC was employed as an anode active material for lithium ion batteries. Excellent performances were obtained with a high specific capacity up to 857 mA.h.g(-1) after 100 cycles. The various charging-discharging current rates of 0.2-5.0 C exhibited no clear negative effect on the recycling stability of the MGC. The enhanced structure stability and ion and electron conductivity of the MGC are responsible for the superior electrochemical properties.
引用
收藏
页码:9228 / 9234
页数:7
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