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
ISSN1023-1935
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
DOI10.1134/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
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
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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