Synthesis of Li1.5Ni0.25Mn0.75O2.5 cathode material via carbonate co-precipitation method and its electrochemical properties

被引：20
作者：
Akhilash, M. [1 ,2 ]
Salini, P. S. [1 ]
Jalaja, K. [2 ]
John, Bibin [1 ]
Mercy, T. D. [1 ]
机构：
[1] Vikram Sarabhai Space Ctr, Energy Syst Div, PCM Ent, Thiruvananthapuram 695022, Kerala, India
[2] Univ Kerala, Thiruvananthapuram 695034, Kerala, India
来源：
INORGANIC CHEMISTRY COMMUNICATIONS | 2021年 / 126卷
关键词：
Lithium-ion batteries; Lithium-rich cathode materials; Co-precipitation; LITHIUM-ION BATTERIES; LAYERED COMPOSITE; LI; PERFORMANCE; LI1.2NI0.2MN0.6O2; SPINEL; ELECTRODES; OXIDES; CHALLENGES; CAPACITY;
D O I：
10.1016/j.inoche.2020.108434
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Lithium rich cathode materials with high specific capacity are considered as promising candidates for improving the energy density of lithium ion cells. In this paper, a Li-rich cathode material, Li1.5Ni0.25Mn0.75O2.5 with well-ordered layered structure is successfully synthesized using a simple carbonate co-precipitation method followed by calcination at 900 degrees C. The phase purity was studied by X-ray diffraction (XRD) and morphology was studied by Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM). SEM analysis of the material revealed cylinder-shaped particles with diameter in the range 100-350 nm. The electrochemical evaluation of the material reveals an initial specific capacity of similar to 240 mAhg(-1) at C/20 rate.
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页数：6
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