3D hierarchical porous N-doped carbon nanosheets/MgFe2O4 composite as anode material with excellent cycling stability and rate performance

被引：11
作者：
Liu, Wenfeng [1 ,2 ,3 ,4 ]
Gao, Rongzhen [2 ,4 ]
Yin, Yanhong [2 ,4 ]
Cui, Yuantao [2 ,4 ]
Yue, Hongyun [2 ,4 ]
Dong, Hongyu [2 ,4 ]
Yang, Shuting [1 ,2 ,4 ]
机构：
[1] Henan Normal Univ, Sch Phys, Xinxiang 453007, Henan, Peoples R China
[2] Henan Normal Univ, Sch Chem & Chem Engn, Xinxiang 453007, Henan, Peoples R China
[3] Henan Battery Res Inst Co LTD, Xinxiang 453007, Henan, Peoples R China
[4] Collaborat Innovat Ctr Henan Prov Mot Power & Key, Xinxiang 453007, Henan, Peoples R China
来源：
SCRIPTA MATERIALIA | 2020年 / 189卷
关键词：
MgFe2O4; Hierarchical porous; N-doped carbon nanosheets; Anode; Lithium ion batteries; LITHIUM; MGFE2O4; HETEROSTRUCTURES; MICROSPHERES; EFFICIENT; MG;
D O I：
10.1016/j.scriptamat.2020.07.060
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
3D hierarchical porous N-doped carbon nanosheets/MgFe2O4 (MFO/NPC) was designed and synthesized successfully as the anode materials for lithium ion batteries by freeze-drying technology with dual salt templates and subsequent in-situ solvent thermal method. Its specific capacity rises steadily to 1337.7 mAh g(-1) at the 260th cycle with the initial coulombic efficiency of 78.3% (0.5 A g(-1)). And the capacity remains at 534.1 mAh g(-1) even after 1500 cycles at the current density of 5 A g(-1). The excellent electrochemical performances can be attributed to the 3D conductive carbon skeleton and the chemical interaction between MFO and the doped N element. (C) 2020 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：36 / 41
页数：6
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