Ni-doped MnO2/CNT nanoarchitectures as a cathode material for ultra-long life magnesium/lithium hybrid ion batteries

被引：61
作者：
Asif, Muhammad [1 ,3 ]
Rashad, Muhammad [4 ]
Ali, Zeeshan [2 ,3 ]
Qiu, Hailong [1 ,3 ]
Li, Wei [1 ,3 ]
Pan, Lujun [5 ]
Hou, Yanglong [1 ,2 ,3 ]
机构：
[1] Beijing Innovat Ctr Engn Sci & Adv Technol BIC Ea, Beijing, Peoples R China
[2] Beijing Key Lab Magnetoelect Mat & Devices, Beijing, Peoples R China
[3] Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China
[4] Chinese Acad Sci, Dalian Inst Chem Phys, Div Energy Storage, Dalian 116023, Peoples R China
[5] Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China
来源：
MATERIALS TODAY ENERGY | 2018年 / 10卷
基金：
国家重点研发计划;
关键词：
Magnesium/lithium hybrid ion battery; Manganese dioxide; Electrochemical properties; Metal doping; Energy storage; HYDROTHERMAL SYNTHESIS; ELECTRODES; SYSTEMS; NANOSTRUCTURES; DELAMINATION; PERFORMANCE; ALPHA-MNO2; NANOWIRES; SPECTRA; CARBON;
D O I：
10.1016/j.mtener.2018.08.010
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
High performance electrode materials are under tremendous focus for rechargeable energy storage systems. Herein, we report Ni-doped manganese oxide/CNT nanostructures as an effective cathode for ultra-long life magnesium/lithium hybrid ion battery (MLIB). The synthesized composite exhibited urchin like morphology, assembled with MnO2 nanoflakes. Electrochemical characterizations reveal excellent rate capacities with a maximum specific capacity of 175 mA h g(-1) at a current density of 20 mA g(-1). Dendrites free MLIB exhibits stable cycling of 3000 cycles with capacity retention of 87% at a current density of 1 A g(-1). Moreover, the influence of cutoff voltages on specific capacities and coulombic efficiencies has been analyzed. Ex-situ XRD and postmortem SEM/EDS analysis illustrates charge-discharge mechanism, and electrode/electrolyte redox reactions at different electrode potentials. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：108 / 117
页数：10
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