Lanzhou University of Technology Institutional Repository (LUT_IR)
Porous LiMn2O4 Nano-Microspheres as Durable High Power Cathode Materials for Lithium Ion Batteries | |
Cui, Xiaoling1,2,3; Feng, Huixia1,2,3; Liu, Jinliang3; Tang, Fengjuan3; Li, Hongliang3 | |
2019-05 | |
发表期刊 | RUSSIAN JOURNAL OF ELECTROCHEMISTRY |
ISSN | 1023-1935 |
卷号 | 55期号:5页码:351-357 |
摘要 | Porous LiMn2O4 spheres was easily fabricated with MnCO3 spheres and MnO2 as precursors and characterized in terms of structure and performance as the cathode of a lithium ion battery. The presence of pores with the average size of about 50 nm throughout the whole LiMn2O4 microspheres was confirmed by scanning electron microscope (SEM) and N-2 adsorption-desorption measurements. The electrochemical tests show that the synthesized product has smaller electrochemical polarization, faster Li-ion intercalation kinetics and higher electrochemical stability. It exhibits excellent rate capability and cyclic stability: delivering a reversible discharge capacity of 71 mA h g(-1) at a 5 C rate and yielding a capacity retention of over 92% at a rate of 0.5 C after 100 cycles. The superior performance of the synthesized product is attributed to its special structure: porous secondary spheres particles consisting of primary single-crystalline nanoparticles. The nanoparticle reduces the path of Li-ion diffusion and increases the reaction sites for lithium insertion/extraction, the pores provide room to buffer the volume changes during charge-discharge and the single crystalline nanoparticle endows the spinel with the best stability. Taking the excellent electrochemical performance and facile synthesis into consideration, the presented porous LiMn2O4 spheres could be a competitive candidate cathode material for high-performance lithium-ion batteries. |
关键词 | lithium manganese oxide cathode porous spheres structure lithium-ion battery |
DOI | 10.1134/S1023193519040037 |
收录类别 | SCI |
语种 | 英语 |
资助项目 | Natural Science Foundation of China[21406100][21566021] ; Science and Technology Support Project of Gansu Province[144GKCB029] |
WOS研究方向 | Electrochemistry |
WOS类目 | Electrochemistry |
WOS记录号 | WOS:000471645400001 |
出版者 | PLEIADES PUBLISHING INC |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | https://ir.lut.edu.cn/handle/2XXMBERH/31887 |
专题 | 省部共建有色金属先进加工与再利用国家重点实验室 材料科学与工程学院 石油化工学院 教务处(创新创业学院) |
通讯作者 | Feng, Huixia |
作者单位 | 1.Lanzhou Univ Technol, State Key Lab Adv Proc & Recycling Nonferrous Met, Lanzhou 730050, Gansu, Peoples R China 2.Lanzhou Univ Technol, Sch Mat Sci & Engn, Lanzhou 730050, Gansu, Peoples R China 3.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Gansu, Peoples R China |
第一作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室; 材料科学与工程学院; 石油化工学院 |
通讯作者单位 | 省部共建有色金属先进加工与再利用国家重点实验室; 材料科学与工程学院; 石油化工学院 |
第一作者的第一单位 | 省部共建有色金属先进加工与再利用国家重点实验室 |
推荐引用方式 GB/T 7714 | Cui, Xiaoling,Feng, Huixia,Liu, Jinliang,et al. Porous LiMn2O4 Nano-Microspheres as Durable High Power Cathode Materials for Lithium Ion Batteries[J]. RUSSIAN JOURNAL OF ELECTROCHEMISTRY,2019,55(5):351-357. |
APA | Cui, Xiaoling,Feng, Huixia,Liu, Jinliang,Tang, Fengjuan,&Li, Hongliang.(2019).Porous LiMn2O4 Nano-Microspheres as Durable High Power Cathode Materials for Lithium Ion Batteries.RUSSIAN JOURNAL OF ELECTROCHEMISTRY,55(5),351-357. |
MLA | Cui, Xiaoling,et al."Porous LiMn2O4 Nano-Microspheres as Durable High Power Cathode Materials for Lithium Ion Batteries".RUSSIAN JOURNAL OF ELECTROCHEMISTRY 55.5(2019):351-357. |
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