3D Hierarchical Co/CoO-Graphene-Carbonized Melamine Foam as a Superior Cathode toward Long-Life Lithium Oxygen Batteries | |
Department | 清洁能源化学与材料实验室 |
Zhang P(张鹏)1,2; Wang RT(王儒涛)1; He M(贺睦)2,3; Lang JW(郎俊伟)1; Xu S(许珊)3; Yan XB(阎兴斌)1; Yan XB(阎兴斌) | |
The second department | osso国家重点实验室;固体润滑国家重点实验室 |
2016 | |
Source Publication | Advanced Functional Materials |
ISSN | 1616-301X |
Volume | 26Issue:9Pages:1354-1364 |
Abstract | Carbon based materials as one promising cathode to accommodate the insoluble and insulating discharge products (Li2O2) for lithium oxygen (Li-O2) batteries have attracted great attention due to their large energy density store ability compared with the other carbon-free cathodes. However, the side reaction occurring at carbon/Li2O2 interfaces hinders their large-scale application in Li-O2 batteries. Herein, a simple and cost-effective strategy is developed for the growth of core-shell-like Co/CoO nanoparticles on 3D graphene-wrapped carbon foam using 3D melamine foam as the initial backbone. This unique 3D hierarchical carbonized melamine foam-graphene-Co/CoO hybrid (CMF-G-Co/CoO) with a continuous conductive network and elastic properties is used as binder-free oxygen electrode for Li-O2 batteries. Electrochemical and structural measurements show that a synergistic effect is observed between Co/CoO and graphene, where Li2O2 grows on the Co/CoO surfaces instead of the carbon surfaces at the initial discharge state (500 mAh ), indicating the reduced carbon/Li2O2 interfaces and alleviative side reactions during the electrochemical process. Importantly, the CMF-G-Co/CoO electrode can achieve greatly improved cycle life over the electrode without aid of the Co/CoO. Furthermore, it delivers a large capacity of ≈7800 mAh and outstanding rate capability, exhibiting the great potential for the application in Li-O2 batteries. |
Subject Area | 材料科学与物理化学 |
DOI | 10.1002/adfm.201503907 |
Funding Organization | the National Defense Basic Research Program of China (B1320133001);the Natural Science Foundation of China (No. 21303234) |
Indexed By | SCI |
If | 12.124 |
Language | 英语 |
Funding Project | 低维材料摩擦学组;多相选择氧化课题组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/19781 |
Collection | 清洁能源化学与材料实验室 固体润滑国家重点实验室(LSL) 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Yan XB(阎兴斌) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Solid Lubricat, Lab Clean Energy Chem & Mat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China |
Recommended Citation GB/T 7714 | Zhang P,Wang RT,He M,et al. 3D Hierarchical Co/CoO-Graphene-Carbonized Melamine Foam as a Superior Cathode toward Long-Life Lithium Oxygen Batteries[J]. Advanced Functional Materials,2016,26(9):1354-1364. |
APA | Zhang P.,Wang RT.,He M.,Lang JW.,Xu S.,...&阎兴斌.(2016).3D Hierarchical Co/CoO-Graphene-Carbonized Melamine Foam as a Superior Cathode toward Long-Life Lithium Oxygen Batteries.Advanced Functional Materials,26(9),1354-1364. |
MLA | Zhang P,et al."3D Hierarchical Co/CoO-Graphene-Carbonized Melamine Foam as a Superior Cathode toward Long-Life Lithium Oxygen Batteries".Advanced Functional Materials 26.9(2016):1354-1364. |
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