Effect of Na Doping on the Electrochemical Performance of Li1.2Ni0.13Co0.13Mn0.54O2 Cathode for Lithium-Ion Batteries
نویسندگان
چکیده
This study aims to investigate the effect of Na doping on structure, electrical, and electrochemical properties lithium-rich cathode material. Pristine Li1.2Ni0.13Mn0.54Co0.13O2 (LNMC) Na-doped Li1.17Na0.03Ni0.13Mn0.54Co0.13O2 (Na-LNMC) layered lithium-rich/manganese-rich compounds are prepared by sol-gel method. The structural morphological characterization reveals that leads an ordered structure with regular cubic morphology enlarged Li layer spacing. enlargement facilitates diffusion lithium ion inside bulk lattice. Electrochemical impedance spectroscopy (EIS) shows a small amount (3 mol%) decreases more than three orders magnitude enhances ions in same proportion. remarkable improvement conductivity coefficient Na-LNMC improves its capacity retention. In addition, this mode preparation results “U-shaped” vs. cycle curves, similar curves observed for transition metal oxide electrodes, resulting exceptional life, tested up 400 cycles at 2C.
منابع مشابه
An Effective Nitrogen Doping Technique for Improving the Performance of Lithium Ion Batteries with CNT Based Electrodes
Lithium ion batteries are among the most used rechargeable batteries in the world. Carbon nanostructures including carbon nanotubes (CNTs) are considered as important electrode materials for this kind of batteries. Therefore improving the performance of these carbon based electrodes in Lithium ion batteries is an important issue and attracts much attention in the battery community. In this manu...
متن کاملEffect of Nb and F Co-doping on Li1.2Mn0.54Ni0.13Co0.13O2 Cathode Material for High-Performance Lithium-Ion Batteries
The Li1.2Mn0.54−xNbxCo0.13Ni0.13O2−6xF6x (x = 0, 0.01, 0.03, 0.05) is prepared by traditional solid-phase method, and the Nb and F ions are successfully doped into Mn and O sites of layered materials Li1.2Mn0.54Co0.13Ni0.13O2, respectively. The incorporating Nb ion in Mn site can effectively restrain the migration of transition metal ions during long-term cycling, and keep the stability of the ...
متن کاملThe Effect of Crystal Face of Fe2O3 on the Electrochemical Performance for Lithium-ion Batteries
Fe2O3 nanorods exposing (001) and (010) plane as well as Fe2O3 nanosheets exposing (001) plane have been successfully synthesized. Fe2O3 nanosheets exhibit better cycle performance and rate capabilities than that of Fe2O3 nanorods. The discharge capacity of Fe2O3 nanosheets can stabilize at 865 mAh/g at the rate of 0.2 C (1C = 1000 mA/g) and 570 mAh/g at the rate of 1.2 C after 80 cycles, which...
متن کاملEffect of Different Binders on the Electrochemical Performance of Metal Oxide Anode for Lithium-Ion Batteries
When testing the electrochemical performance of metal oxide anode for lithium-ion batteries (LIBs), binder played important role on the electrochemical performance. Which binder was more suitable for preparing transition metal oxides anodes of LIBs has not been systematically researched. Herein, five different binders such as polyvinylidene fluoride (PVDF) HSV900, PVDF 301F, PVDF Solvay5130, th...
متن کاملElectrochemical Characterization of Low-Cost Lithium-Iron Orthosilicate Samples as Cathode Materials of Lithium-Ion Battery
Lithium-iron-orthosilicate is one of the most promising cathode materials for Li-ion batteries due to its safety, environmental brightness and potentially low cost. In order to produce a low cost cathode material, Li2FeSiO4/C samples are synthesized via sol-gel (SG; one sample) and solid state (SS; two samples with different carbon content), starting from Fe (III) in the raw materials (lo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sustainable chemistry
سال: 2022
ISSN: ['2673-4079']
DOI: https://doi.org/10.3390/suschem3020010