Study of Ni-dopped MnCo2O4 Yolk-Shell Submicron-spheres with Fast Li+ Intercalation Pseudocapacitance As An Anode for High-Performance Lithium Ion Batteries | |
Wu LJ(吴利军)1,2; Lang JW(郎俊伟)1; Wang S(王帅)1; Zhang P(张鹏)1,2; Yan XB(阎兴斌)1; Yan XB(阎兴斌) | |
刊名 | Electrochimica Acta |
2016 | |
卷号 | 203页码:128-135 |
关键词 | transtion metal oxide yolk-shell structure anode lithium-ion battery pseudocapacitance |
ISSN号 | 0013-4686 |
通讯作者 | 阎兴斌 |
英文摘要 | Spinel Ni-dopped MnCo2O4 powder with fast Li+ intercalation pseudocapacitance is prepared from transition metal carbonates of Ni, Co and Mn as precursors through a solvothermal synthesis followed by an annealing treatment. As-made products are nanovoids submicron-spheres (the diameter is 500 nm–700 nm) with an obvious yolk-shell structure and uniform elements distribution. As an anode material with fast Li+ intercalation pseudocapacitance for lithium-ion battery (LIB), the Ni-dopped MnCo2O4 submicron-spheres exhibit an impressively first discharge efficiency (70%) and outstanding large-current cycling performance. The excellent electrochemical performance is closely ascribed to Li+ intercalation pseudocapacitance and the yolk-shell structure, which can effectively prevent the particles from being pulverized, and alleviate the volume changes of particles during the cycling process. In addition, the doping of Ni metal element to MnCo2O4 greatly enhances the electrochemical stability of MnCo2O4, due to the complementarities and synergies between the three metallic elements during the process of Li insertion or extraction reactions. |
学科主题 | 材料科学与物理化学 |
收录类别 | SCI |
资助信息 | the National Nature Science Foundations of China (51501208;21573265) |
语种 | 英语 |
WOS记录号 | WOS:000376133200015 |
内容类型 | 期刊论文 |
源URL | [http://210.77.64.217/handle/362003/20098] |
专题 | 兰州化学物理研究所_清洁能源化学与材料实验室 兰州化学物理研究所_固体润滑国家重点实验室 |
通讯作者 | Yan XB(阎兴斌) |
作者单位 | 1.Lanzhou Inst Chem Phys, Lab Clean Energy Chem & Mat, State Key Lab Solid Lubricat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China |
推荐引用方式 GB/T 7714 | Wu LJ,Lang JW,Wang S,et al. Study of Ni-dopped MnCo2O4 Yolk-Shell Submicron-spheres with Fast Li+ Intercalation Pseudocapacitance As An Anode for High-Performance Lithium Ion Batteries[J]. Electrochimica Acta,2016,203:128-135. |
APA | Wu LJ,Lang JW,Wang S,Zhang P,Yan XB,&阎兴斌.(2016).Study of Ni-dopped MnCo2O4 Yolk-Shell Submicron-spheres with Fast Li+ Intercalation Pseudocapacitance As An Anode for High-Performance Lithium Ion Batteries.Electrochimica Acta,203,128-135. |
MLA | Wu LJ,et al."Study of Ni-dopped MnCo2O4 Yolk-Shell Submicron-spheres with Fast Li+ Intercalation Pseudocapacitance As An Anode for High-Performance Lithium Ion Batteries".Electrochimica Acta 203(2016):128-135. |
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